OpenAI has been rapidly developing its ChatGPT generative AI chatbot and Sora AI video creator over the last year, and it’s now got a new artificial intelligence tool to show off: Voice Generation, which can create synthetic voices from just 15 seconds of audio.
In a blog post (via The Verge), OpenAI says it’s been running “a small-scale preview” of Voice Engine, which has been in development since late 2022. It’s actually already being used in the Read Aloud feature in the ChatGPT app, which (as the name suggests) reads out answers to you.
Once you’ve trained the voice from a 15-second sample, you can then get it to read out any text you like, in an “emotive and realistic” way. OpenAI says it could be used for educational purposes, for translating podcasts into new languages, for reaching remote communities, and for supporting people who are non-verbal.
This isn’t something everyone can use right now, but you can go and listen to the samples created by Voice Engine. The clips OpenAI has published sound pretty impressive, though there is a slight robotic and stilted edge to them.
Safety first
Voice Engine is already used in ChatGPT’s Read Aloud feature (Image credit: OpenAI)
Worries about misuse are the main reason Voice Engine is only in a limited preview for now: OpenAI says it wants to do more research into how it can protect tools like this from being used to spread misinformation and copy voices without consent.
“We hope to start a dialogue on the responsible deployment of synthetic voices, and how society can adapt to these new capabilities,” says OpenAI. “Based on these conversations and the results of these small scale tests, we will make a more informed decision about whether and how to deploy this technology at scale.”
With major elections due in both the US and UK this year, and generative AI tools getting more advanced all the time, it’s a concern across every type of AI content – audio, text, and video – and it’s getting increasingly difficult to know what to trust.
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As OpenAI itself points out, this has the potential to cause problems with voice authentication measures, and scams where you might not know who you’re talking to over the phone, or who’s left you a voicemail. These aren’t easy issues to solve – but we’re going to have to find ways to deal with them.
Qualcomm has announced two new audio chips for wireless earphones and headphones: S3 Gen 3 and S5 Gen 3. Both these audio chips claim to make more affordable wireless earphones sound better through advanced connectivity features and AI-powered audio technologies.
Qualcomm S3 Gen 3 and S5 audio chips bring Bluetooth 5.4 LE and Auracast support
Qualcomm’s S3 Gen 3 and S5 Gen 3 chips bring audiophile-grade audio quality, high-quality audio codecs, more effective Active Noise Cancellation (ANC), improved call quality, and longer battery life to wireless earbuds and headphones. These audio chips sit below Qualcomm’s flagship audio chips: S7 and S7 Pro.
Qualcomm S3 Gen 3
The S3 Gen 3 is an audio chip for mid-tier earbuds, mid-tier headphones, and wireless speakers. It has all the essential features, including support for ANC, aptX Adaptive, aptX Lossless (24-bit 48kHz), Bluetooth 5.4 with LE Audio, Bluetooth Auracast, and Spatial Audio. It also features an improved Digital-To-Analog (DAC) converter for improved audio quality and lower noise (hissing sound at low volumes).
It supports Alexa and Google Assistant with wake word activation. It also supports Google Fast Pair for faster pairing. Thanks to the support of up to three microphones on each earbud (left and right), voice calls should be clearer.
Qualcomm S5 Gen 3
The S5 Gen 3 has more features than the S3 Gen 3. It is for premium earbuds/headphones (one step below flagship) and wireless speakers. Qualcomm says this new chip has 50% more memory and significantly more DSP processing power than the S5 Gen 2, bringing improved audio quality while gaming and listening to music. It also features improved ANC and echo cancellation.
This chip supports Bluetooth 5.4 with LE Audio, Bluetooth Auracast, and Spatial Audio. It features aptX Adaptive and aptX Lossless (24-bit 48kHz) audio codecs for higher audio quality. Adaptive ANC and Adaptive Transparency features are also supported.
Watch our review of the Galaxy Buds 2 Pro in the video below.
The S3 Gen 3 and S5 Gen 3 audio chips will soon be available to earphone makers, and we can expect earbuds featuring these chips to hit the market later this year or early next year. Samsung uses Qualcomm’s chips in some of its wireless earbuds, but there is no confirmation if it will use the S3 Gen 3 or S5 Gen 3 in its future Galaxy Buds.
Hi-res audio can be a cruel mistress. You’d be forgiven for thinking two five-star products joined in union will surely bring high fidelity sound to your ears, but, as anyone who’s connected a set of high-impedance IEMs to a hi-res DAP (even if it’s one of the best portable audio players hooked up to some of the best wired headphones) knows, it’s just not that simple.
Why? Because said player may not have the oomph or power to fire up your earphones’ multiple drivers to their full potential, that’s why. And that means you’ll need a separate headphone amp (often bundled in with some of the best portable DACs), which may affect the sonic characteristics of your chosen player’s onboard digital-analog-converter.
And aside from all of this, headphones are tuned specifically by audio engineers (often to reflect the sonic recipe a brand is known for) and said audio curve may not work as beautifully with your player’s presentation as you might hope.
In hi-fi as in life, compatibility is key. And that’s why I want you to know about this little system. It surprised me, in all the right ways.
First off, I decided to start with a set of very big and rather new headphones, namely the December 2023-issue FiiO FT5, also known as FiiO’s first ever planar magnetic design. Why did they set my internal alarm bells ringing – and why might such a product be a tough match for any pocket player? Each ear cup uses a large and extraordinarily thin (6µm) planar magnetic driver, with 11 neodymium magnets on one side and nine on the other. Sounds tough to drive, no? And because these headphones are priced at $449 / £429 / AU$799, (a level at which PM designs aren’t unheard of, but the more practical dynamic driver alternative still dominates) coupled with the fact that this is FiiO’s first stab at a planar magnetic design, I worried sensitivity would be an issue.
On top of all of that, I plugged their 4.4mm balanced output into Astell & Kern’s most ‘entry-level’ player, the Astell & Kern A&norma SR35. I put the term in quotation marks because using it at all requires you to consider $799 / £799 / AU$1,299 a negligible fee – and I cannot do that. No, not even when A&K’s flagship player (the Astell & Kern A&ultima SP3000 costs $3,699 / £3,799 / AU$5,499, thank you…
Doubt the talents of this A&K x FiiO pairing at your peril
Who wouldn’t love to produce this from a pocket? (Image credit: Future)
So, we know that these cans are big and we know that they use a flat 90mm diaphragm, rather than the traditional cone-shaped one. Because this is sandwiched between a total of 20 magnets to create a diaphragm evenly-suspended between permanent magnetic fields, it should make the sound far more resistant to myriad audio and electronic distortions – so better music – but only if the player can power it properly, to celebrate the resolution of those lossless FLAC files.
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And oh, the Astell & Kern A&norma SR35 can. I hadn’t expected it, and I was wrong to doubt either brand.
A&K’s stone cold serious spec-sheet should have been enough, really, but plenty of brands promise strength and zeal from their players even when they’re tasked with hard-to-drive headphones and sadly, I’ve been disappointed in the past.
But not here. This partnership is one of the best I’ve stumbled upon and it is without doubt my top shout for a portable system costing $1,248 / £1,228 / AU$2,098.
As noted above, the A&norma SR35 isn’t your average ‘entry level’ player. Astell & Kern is a specialist that regularly lists digital audio players costing the better part of four large in its oeuvre, and this particular player certainly exceeds my expectations of a DAP listed alongside the term.
Tempted? Good, the audiophile in you deserves it
Why yes, Nick Cave & the Bad Seeds sounds great on it (Image credit: Future)
I’ve listened to FiiO’s novel new over-ears with A&K’s cheapest player for hours (turning into days), and for this money, I cannot suggest a portable solution that could come close to bettering it – and that’s not a statement I make flippantly.
The Weeknd’s Blinding Lights is every bit as vivacious, cutting, textured and punchy as you could hope to enjoy at the level. The Rolling Stones Gimme Shelter is raucous, emotive, foot-tappingly accurate timing-wise and above all, meaningfully immersive. When the beat drops in Peter Gabriel’s Sledgehammer, you know about it and then some.
The SR35’s amplification (the key component in this partnership) comes from a recent A&K in-house design called ‘New Generation AMP’. Digital-to-analogue conversion is handled by not one, not two, but four Cirrus Logic CS43198 DAC chips – and it can even run in ‘dual-DAC’ mode instead, to extend the battery performance. It’s all part of Astell & Kern’s ‘Teraton Alpha’ hardware platform and the choice morsel of intel you need here is that while it’s featured in Astell & Kern players before, it has been reserved for the much more expensive ones until now – namely, the firm’s A&futura and A&ultima lines.
With the A&norma SR35, I now get to combine my oversized FiiO cans with A&K’s 2-step gain mode – yes, I get to select ‘normal’ or ‘high’ gain modes depending on my power needs. You see, the output claim for the SR35 is 6 Vrms from its balanced connections – and that’s huge. If your main issue with DAPs to date has been power (ie. enough to drive your beloved over-ear headphones) the extra fuel injection between the SR35 and the already-much-better A&norma SR25 MKII is significant. The SR35 drives the FiiO FT5 with energy to spare. I never need to go above 60% volume – or, to put it another way, 89 of the SR35’s 0to 150 on its 0.5 dB incremental volume wheel is plenty.
Will the battery life suffer with this little setup? A little, despite the improved efficiency. You should expect to take a slight hit on the 20 hours or so of playback you’ll get using dynamic driver headphones at 50% volume – but then again, using a Bluetooth connection to wireless cans also means taking a hit on stamina, and I know which I prefer.
I appreciate that it’s not an insubstantial amount of money. But I also maintain that these two products in partnership are worth it, because in my honest opinion the sound outperforms the investment considerably.
There are plenty of that plug directly into instruments like electric guitars and basses, but Boss just kicked things up a notch. The company has announced the and it’s a doozy, with a combination of features I’ve never seen together in one little box.
Just like rival products, this thing plugs into the input jack of a preferred instrument and includes a headphone jack to hear what’s going on. Guitar players can choose from ten amp models and bassists get three amp models, each pulled from the pre-existing Katana line of modeling amplifiers. Boss Katana amps are known primarily for their surprisingly great selection of tones, and it looks like the company managed to squeeze those same models into a headphone amp. Rival products are certainly convenient, but don’t always sound that great.
There are 60 effects to choose from, with all of the reverbs, delays and, of course, choruses musicians have come to expect from Boss. These are also the same effects featured in the larger and pricier combo amps.
So, there are good amp tones and a robust lineup of effects. What sets the Katana:Go apart from, say, the Mustang Micro? First of all, there’s a built-in tuner, which is always a welcome addition. The Katana:GO also includes spatial audio tech to mimic a live setup, further enhancing its usefulness as a practice amp. It remains to be seen how realistic this sounds, but Boss says it lets users position a virtual amp in different locations to give the impression of playing on stage or “jamming in a room with friends.” I’ve used many of these amps before and have found the “in your face” nature of the headphone signal rather off-putting, so I’m intrigued by this feature.
The amp has 30 preset slots, for creating and saving unique tones, and integrates with the . This allows users to trade presets like Pokémon. Okay, not quite like Pokémon, but you get the gist.
Boss
The Katana:GO even doubles as an actual USB audio interface. Just plug it into a computer, smartphone or tablet and record straight into a DAW. Finally, there’s a dedicated mobile app, with the ability to jam along to songs from streaming sites or a personal library. This is especially handy for getting that daily practice session in, and there’s a looping feature for nailing down difficult segments.
Just like the other headphone amps on the market, it folds up neatly and easily fits into a standard gig bag. The Boss Katana:GO costs $120 and, incidentally, is the same price as the Mustang Micro, which doesn’t double as an audio interface or include a built-in tuner. It’s available to purchase right now.
Musician Prince on stage in Detroit, Michigan, during his 1984 Purple Rain tour.Credit: Ross Marino/Getty
Working scientist profiles
This article is part of an occasional Nature series in which we profile scientists with unusual career histories or outside interests.
In 1983, Susan Rogers got a call that would change her life. She was working as an audio technician in the music industry in Los Angeles, California, when an ex-boyfriend got in touch to tell her that the musician Prince was looking for a technician.
Rogers, who at the time was one of the few female audio technicians in the United States — and maybe even the world — was already a Prince fan. His work reminded her of the soul music she had grown up listening to in the 1960s and 1970s in southern California — artists such as Sly and the Family Stone and Al Green, but with a contemporary, punk edge.
By this point, Prince had just released his album 1999. Rogers, who was 27 at the time, would begin working with him on Purple Rain, the record that would launch him into global superstardom.
Sounds of science: how music at work can fine-tune your research
She spent four years working with Prince in his home recording studio in Minneapolis, Minnesota, leaving a year before the opening of Paisley Park, Prince’s now-legendary creative and performing space. By this point, she had graduated from being an audio technician — maintaining and repairing equipment — to recording engineer, a role that has much more influence over the whole sound of a record.
“I was talking to some Prince alumni recently and they were saying ‘poor Susan, she never even got Christmas Day off’. There’s no ‘poor Susan’ about it — I was working with my favourite artist and there was nowhere I would rather be,” she says.
After Prince, she went on to work with other musicians, such as the Canadian rock group Barenaked Ladies and David Byrne, former lead singer of the new-wave band Talking Heads. At the age of 44, and with the help of the royalties she earned on the Barenaked Ladies album Stunt, she quit the music industry (see ‘Quick-fire questions’).
Higher education had not been an option growing up — her mother died when she was 14 and Rogers was married aged 17. She escaped that unhappy relationship after three years and headed to Hollywood, where she got a job as a trainee audio technician.
Susan Rogers trained as a recording engineer before pivoting to neuroscience. She continues to produce music, such as for US singer-songwriter Jeff Black.Credit: Madison Thorne
Over the years, she increasingly felt the pull of academia and a calling to study the natural world. So, in 2000, she began her undergraduate degree in neuroscience and psychology at the University of Minnesota. Initially, she wanted to study consciousness in non-human animals, but was advised that a more meaningful contribution would be a neuroscience degree that would also enable her to study music perception and cognition. She then did her doctoral work at McGill University in Montreal, Canada. Returning to education after so many years was not as difficult as she had feared — and years spent learning the intricacies of a recording console helped her to understand the complexity of the human brain.
Her PhD research focused on auditory memory. She designed experiments to test short-term memory for musical intervals, in which musicians and non-musicians listened to a piece of music containing consonance (harmonious sounds) and dissonance (clashing or unexpected sounds). The most interesting observation was that, for both groups, short-term auditory memory lasted longer than was previously thought, she says. At the time of her doctoral work, psychologist István Winkler and his colleagues had reported that auditory short-term memory persisted for roughly 30 seconds1, but Rogers’s work demonstrated it lasting for 48 seconds.
A good ear and a sound work ethic
One of Rogers’s PhD supervisors was Daniel Levitin, a cognitive psychologist, musician and record producer whose research focuses on music perception. He knew of Rogers from her work with Prince and Barenaked Ladies, and took her on “in a heartbeat”. “She was Prince’s engineer — that’s one of the top engineering jobs in the world,” he says.
Her years in the music industry greatly enhanced her academic work, he says. It gave her an astonishing work ethic and helped her to hone her all-important listening skills.
“What auditory neuroscience requires is a good ear. You’re designing experiments and you need to be able to hear subtle details that others might not hear so that you know you’ve prepared your experiments correctly. Susan has a great ear.”
Levitin describes her as very musical, “even though she doesn’t play an instrument”. As a producer, he explains, her job was to coax out of the musician “the most authentically emotional performance you could get”. “Miles Davis told her she was a musician. He didn’t throw around that term lightly,” he says of the renowned jazz bandleader and composer.
In 2008, Rogers joined Berklee College of Music in Boston, Massachusetts, where she teaches music production and engineering. She is also writing a course on music and neuroscience for the college’s online programme.
She has investigated what people visualize when they listen to music, and plans to publish the results. Some people, including Rogers, imagine the musicians playing; others make up stories based on the lyrics; and for some — particularly older people — music triggers memories. Interestingly, musicians and non-musicians do not differ greatly in their visualizations.
“One of the least musical people that I know — somebody who would almost be called tone deaf — reports that he sees abstract shapes and colours when he listens to music. And two of the finest musicians I know also visualize abstract shapes and colours. I can’t even imagine having that visualization to music,” she says.
Throughout her successful music career, Rogers admits that there were times when she felt like a bystander in the studio — because she does not play an instrument or compose, her views felt secondary to those of the professional musicians. But in her career as an academic and teacher, she is very much at home.
“Nothing in my life has brought me more joy than scientific pursuit. It is as creative as anything I ever did while making records. Had I realized in my youth that a career in science was possible for me, my hunch is that I could have made a more notable contribution. Earning a PhD at age 52 doesn’t permit that,” she says.
Common cause
Rogers also thinks that musicians and scientists have more in common than one might guess — both need to be open-minded and be able to separate relevant and irrelevant information. “The fashion and the hairstyles are different — musicians have the edge there — but there are more similarities than differences,” she says.
The sound of stars
How else are the two professions similar? “It takes guts to commit to a music career because there is no comfortable path and absolutely no light to guide you, other than your own internal one,” says Rogers. “I’ve had the privilege of knowing some outstanding scientists and my perception is that they, too, are driven more by scratching an intellectual itch than by winning a prize or being famous.”
That feeling of being a bystander in the music industry receded when she realized that listening is an “indispensable component of what music is”, as she explains in her 2022 book, co-authored with neuroscientist Ogi Ogas, This is What it Sounds Like: What the Music You Love Says About You.
“Practically speaking, without a listener, music does not exist. By perceiving, feeling and reacting to the many dimensions of a song, a listener closes the creative circle and completes the musical experience,” she writes.
Levitin thinks that one of Rogers’s main contributions through her writing and public speaking has been to elevate the importance of the listener.
“She’s also adding the social context by which we listen, and by which we decide what we like, and the developmental stages we go through as listeners, from listening to children’s nursery rhymes to more sophisticated things,” he says. Her book, he adds, is a perfect example of what a popular-science work and science communication should be — it does not dumb down the science or patronize its audience, but neither does it aim so high that it’s impenetrable.
Training: Effective science communication
Rogers hopes that, one day, all music courses will include a unit on music cognition to help creators to understand how listeners receive their craft.
“It won’t help you in the studio and it won’t help you while you’re composing. And I don’t think it should — when we’re creating works of art, we shouldn’t be thinking too deeply about the nuts and bolts,” she says. That said, a music-cognition course can help music creators to understand their audiences, “just like a chef needs to understand what food tastes like”, she adds.
When she finally left Prince and began working with other musicians, she felt she had to unlearn some elements of Prince’s intense working habits.
“Prince was doing a song a day when I was with him. That was every day. That’s how we worked,” she says.“He also had an exceptional ear for arrangement. He could foresee how the end product was going to turn out in such a way that each part — drums, bass, guitars, keyboards, backing vocals — was recorded with an ear for the subsequent parts. He had a watchmaker’s skill of putting the individual parts together to create a whole.”
She still loves listening to music and discovering new artists, particularly with the help of her students, but she remains true to soul, her first musical love.
“As Prince used to say, soul is the street I live on,” she says.
Quick-fire questions
What music do you listen to when working?
I can’t have music on in the background because it’s such a powerful attractor. If something comes on the radio while I’m driving, I have to turn it down and remind myself to pay attention to the road.
What has been your career highlight?
Working with Prince was obviously a great star in the firmament. But being the producer on the Barenaked Ladies album Stunt was amazing — it went multi-platinum. I’ve had a short science and teaching career but receiving a distinguished teaching award at Berklee was also gratifying.
Did you ever speak to Prince about your research?
Sadly, no. The last conversation I had with Prince was around 1997, before my university education. If we’d had a chance to talk about my research, he would have argued with me on every point, which would have been welcome. I heard him say that if he’d gone into something other than music, he would have liked teaching. With his creativity, intelligence and self-discipline, he would have been an outstanding researcher.
Do you have a memorable mentor?
Musically, the producer Tony Berg taught me a lot. He hasn’t sold as many records as others, but he has influenced so many people. Stephen McAdams at McGill University would be my scientific mentor — he took over supervising my PhD because Daniel Levitin was on a book tour. He is a world expert on timbre perception and is everything a scientist should be — kind, generous of spirit, funny.
Is there any music you don’t enjoy listening to?
I used to have zero interest in heavy-metal music, but two of my students shared their love of it with me, and, as good listeners, they explained why it was so great. I picked up on their love for it. Sometimes we don’t like something because we don’t know it well enough.
If you could save only one record from your collection, what would it be?
It’s so hard to choose when you love so many things, but just off the top of my head I’d probably choose Al Green’s Greatest Hits album.
This interview has been edited for length and clarity.
“When you think about the history of Bluetooth, and specifically about audio, you really have to go back to the mid-to-late ’90s.”
Chuck Sabin is a Bluetooth expert. As a senior director at Bluetooth Special Interest Group (SIG), he oversees market research and planning as well as business development. He’s also leading the charge for emerging uses of Bluetooth, like Auracast broadcast audio. In other words, he’s an excellent person to speak to about how far Bluetooth has come — from the days of mono headsets solely used for voice communication to today’s devices capable of streaming lossless-quality music.
In the mid ’90s, mobile phones were starting to become a thing, and of course so were regulations about hands-free use of them in cars. Sabin previously worked in the cellular industry, and he remembers how costly and intrusive the early hand-free systems were in vehicles. Bluetooth originated from cell phone companies working together to cut the cord to headphones since using those not-yet-wireless audio accessories in the car was cumbersome. One of the first mobile phones with Bluetooth was from Ericsson in the late ’90s, although an updated model didn’t make it to consumers until 2001. That same year, the IBM ThinkPad A30 became the first laptop with Bluetooth built in. At that time, the primary intent of the short-range radio technology was for voice calls.
The Bose Bluetooth Headset Series 2 (Bose)
“You had a lot of people who ended up with these mono headsets and boom mics,” he explained. You know, the people we all probably made fun of — at least once. Most of these things were massive, and some had obnoxious blinking lights. They’re definitely a far cry from the increasingly inconspicuous wireless earbuds available now.
Bluetooth as a specification continued to evolve, with companies leveraging it for music and streaming audio. To facilitate music listening, there had to be faster communication between headphones and the connected device. Compared with voice calling, continuous streaming required Bluetooth to support higher data speeds along with reduced latency. Where Bluetooth 1.0 was call specific, version 2.0 began to achieve the speeds needed for audio streaming at over 2 Mb/s. However, Sabin says, the 2.1 specification adopted by Bluetooth SIG in 2007 was when all streaming audio capabilities were implemented in automobiles, phones, headphones, headsets and more.
Of course, it would still be a few years before wireless headphones were mainstream. In the early 2000s, headphones were still directly connected to a mobile phone or other source device. Once Bluetooth became a standard feature in all new phone models, as well as its inclusion in laptops and PCs, consumers could count on wireless connectivity being available to them. Even then, music had to be loaded onto a memory card to get it on a phone, as dedicated apps and streaming services wouldn’t be a thing until the 2010s.
“The utility of the device that you carried around with you all the time was evolving,” Sabin said. “Bluetooth was ultimately riding that continued wave of utility, by providing the opportunity to use that phone as a wireless streaming device for audio.”
Bragi Dash true wireless earbuds (Photo by James Trew/Engadget)
About the time wireless headphones had become popular, a few companies arrived with a new proposition in 2015: true wireless earbuds. Bluetooth improvements meant reduced power requirements leading to much smaller devices with smaller batteries — and still provide the performance needed for true wireless devices. Bragi made a big splash at consecutive CESs with its Dash earbuds. The ambitious product had built-in music storage, fitness tracking and touch controls, all paired with a woefully short three-hour battery life. Perhaps the company was a bit overzealous, in hindsight, but it did set the bar high, and eventually similar technologies would make it into other true wireless products.
“Companies that were building products were really starting to stretch the specification to its limits,” Sabin explained. “There was a certain amount of innovation that was happening [beyond that] on how to manage the demands of two wireless earbuds.” Bluetooth’s role, he said, was more about improving performance of the protocol as a means of inspiring advances in wireless audio devices themselves.
He was quick to point out that, for the first few years, true wireless buds accepted the Bluetooth signal to only one ear and then sent it to the other. That’s why the battery in one would always drain faster than the other. In January 2020, Bluetooth SIG announced LE Audio at CES as part of version 5.2. LE Audio delivered lower battery consumption, standardized audio transmission and the ability to transmit to multiple receivers — or multiple earbuds. LE Audio wouldn’t be completed until July 2022, but it offers a lower minimum latency of 20 to 30 milliseconds versus 100 to 200 milliseconds with Bluetooth Classic.
“All of the processing is now done back on the phone itself and then streamed independently to each of the individual earbuds,” Sabin continued. “That will continue to deliver better performance, better form factors, better battery life and so on because the processing is being done at the source level versus [on] the individual earbuds.”
The increased speed and efficiency of Bluetooth has led to improvements in overall sound quality too. Responding to market demands for better audio, Qualcomm and others have developed various codecs, like aptX, that expand what Bluetooth can do. More specifically, aptX HD provides 48kHz/24-bit audio for wireless high-resolution listening.
“One of the elements that came into the specification, even on the classic side, was the ability for companies to sideload different codecs,” Sabin explained. “Companies could then market their codec to be available on phones and headphones to provide enhanced audio capabilities.”
LE Audio standardizes Bluetooth connectivity for hearing aids, leading to a larger number of supported devices and interoperability. The use cases range from tuning earbuds to a user’s specific hearing or general hearing assistance needs, with or without the help of active noise cancellation or transparency mode, to simply being able to hear valuable info in public spaces via their earbuds or hearing aid.
“Bluetooth is becoming integral for people with hearing loss,” he explained. “Not only for medical-grade hearing aids, but you’re seeing hearing capabilities built into consumer devices as well.”
Sony’s CRE-E10 OTC hearing aids (Sony)
Sabin also noted how the development of true wireless earbuds have been key for people with hearing loss and helped reduce the stigma around traditional hearing aids. Indeed, companies like Sennheiser and Sony have introduced assistance-focused earbuds that look no different from the devices they make for listening to music or taking calls. Of course, those devices do that too, it’s just their primary aim is to help with hearing loss. The boom, which has been going on for years, was further facilitated by a 2022 FDA policy change that allowed over-the-counter sale of hearing aids.
One of the major recent developments for Bluetooth is broadcast audio, better known as Auracast. Sabin described the technology as “unmuting your world,” which is exactly what happens when you’re able to hear otherwise silent TVs in public spaces. You simply select an available broadcast audio channel on your phone, like you would a Wi-Fi network, to hear the news or game on the TV during your layover. Auracast can also be used for things like PA and gate announcements in airports, better hearing at conferences and sharing a secure audio stream with a friend. Companies like JBL are building it into their Bluetooth speakers so you can link unlimited additional devices to share the sound at the press of a button.
“You’re seeing it in speakers, you’ll see it in surround sound systems and full home or party-in-a-box type scenarios,” he said. Sabin also noted that applications beyond the home could simplify logistics for events, since Auracast audio comes from the same source before it’s sent to a PA system or connected earbuds and headphones with no latency. Sabin said the near-term goal is for Bluetooth audio to be as common in public spaces as Wi-Fi connectivity, thanks to things like Auracast and the standard’s constant evolution.
Even after 20 years, we’re still relying on Bluetooth to take calls on the go, but both the voice and audio quality have dramatically improved since the days of the headset. Smaller, more comfortable designs can be worn all day, giving us constant access to music, podcasts, calls and voice assistants. As consumer preferences have changed to having earbuds in at all times, the desire to tune into our surroundings rather than block them out has increased. “Unmuting your world” is now of utmost importance, and the advancement of Bluetooth technology, from the late ’90s through LE Audio, continues to adapt to our sonic preferences.
To celebrate Engadget’s 20th anniversary, we’re taking a look back at the products and services that have changed the industry since March 2, 2004.
OpenAI’s Chief Technology Officer Mira Murati recently sat down with The Wall Street Journal to reveal interesting details about their upcoming text-to-video generator Sora.
The interview covers a wide array of topics from the type of content the AI engine will produce to the security measures being put into place. Combating misinformation is a sticking point for the company. Murati states Sora will have multiple safety guardrails to ensure the technology isn’t misused. She says the team wouldn’t feel comfortable releasing something that “might affect global elections”. According to the article, Sora will follow the same prompt policies as Dall-E meaning it’ll refuse to create “images of public figures” such as the President of the United States.
Watermarks are going to be added too. A transparent OpenAI logo can be found in the lower right-hand corner indicating that it’s AI footage. Murati adds that they may also adopt content provenance as another indicator. This uses metadata to give information on the origins of digital media. That’s all well and good, but it may not be enough. Last year, a group of researchers managed to break “current image watermarking protections”, including those belonging to OpenAI. Hopefully, they come up with something tougher.
Generative features
Things get interesting when they begin to talk about Sora‘s future. First off, the developers have plans to “eventually” add sound to videos to make them more realistic. Editing tools are on the itinerary as well, giving online creators a way to fix the AI’s many mistakes.
As advanced as Sora is, it makes a lot of errors. One of the prominent examples in the piece revolves around a video prompt asking the engine to generate a video where a robot steals a woman’s camera. Instead, the clip shows the woman partially becoming a robot. Murati admits there is room for improvement stating the AI is “quite good at continuity, [but] it’s not perfect”.
Nudity is not off the table. Murati says OpenAI is working with “artists… to figure out” what kind of nude content will be allowed. It seems the team would be okay with allowing “artistic” nudity while banning things like non-consensual deep fakes. Naturally, OpenAI would like to avoid being the center of a potential controversy although they want their product to be seen as a platform fostering creativity.
Ongoing tests
When asked about the data used to train Sora, Murati was a little evasive.
She started off by claiming she didn’t know what was used to teach the AI other than it was either “publically available or license data”. What’s more, Murati wasn’t sure if videos from YouTube, Facebook, or Instagram were a part of the training. However she later admitted that media from Shutterstock was indeed used. The two companies, if you’re not aware, have a partnership which could explain why Murati was willing to confirm it as a source.
Murati states Sora will “definitely” launch by the end of the year. She didn’t give an exact date although it could happen within the coming months. For now, the developers are safety testing the engine looking for any “vulnerabilities, biases, and other harmful results”.
If you’re thinking of one day trying out Sora, we suggest learning how to use editing software. Remember, it makes many errors and might continue to do so at launch. For recommendations, check out TechRadar’s best video editing software for 2024.
The Audio Pro C20 has a lot of connectivity options. As anyone familiar with the category of best wireless speakers knows, a box of drivers that’s able to harness your home’s Wi-Fi network can offer superior sound to that afforded by a Bluetooth connection, whether music is accessed via Google Cast, Apple’s AirPlay, ‘connected’ services such as Tidal Connect (which actually lets you stream losslessly in 24-bit hi-res, where AirPlay taps out at 16-bit CD quality) or a dedicated multi-room app such as the Audio Pro Control app. And the Audio Pro C20 offers all of this.
But just quickly, let’s explain why Audio Pro’s latest wireless speaker is worth your time from a technical perspective. First off, pinging music over Bluetooth from phone to speaker incurs compression. Wi-Fi’s higher bandwidth means you can listen in (very) high resolution, up to 24-bit/192kHz. Now, a Wi-Fi enabled speaker accesses your chosen tunes from the internet (or local drive connected to it) rather than from your phone itself – and if you walk into another room or take a call, as long as you stay within range of your Wi-Fi router, the music keeps playing.
Why explain this in the intro to a product review? Because Audio Pro gets it. The Swedish company’s been in the game for 40 years and the firm gets that we want more than one open gate leading to our music. Also, we now have plenty of kit we’d like to physically connect our shiny new speaker to, if possible (and thank you very much in advance). So, on top of Wi-Fi and Bluetooth streaming, Audio Pro has added to the sizeable C20 a compelling array of ports on the back: an RCA in (for turntables with an RIAA amp), a phono MM in (for moving-magnet cartridge decks without a phono stage), an RCA sub out (if you wanted to connect a dedicated subwoofer to it), a Toslink Optical in (for CD players or budget soundbars, say) and the arguably the biggest draw of the lot – an HDMI ARC in, so it can go straight into your TV and challenge some of the best soundbars. So long as it’ll fit beneath it without obscuring the screen, that is.
The grille attaches easily with magnets and offers clean lines, if you want those… (Image credit: Future)
What you need to know is this: this thing sounds fantastic, offering clarity, depth, excitement and finesse, even at higher volumes. The control app is easy to navigate and corrals all of your chosen music streaming services – but of course, you could go into each app on your phone and click the little Google cast or AirPlay icon to see the C20 ready to connect.
Audio Pro calls the C20 the complete solution for music and TV and it’s hard to argue. It’s also hard to imagine a home interior, color scheme or decor style that the Audio Pro C20 couldn’t be friends with – and the grille can remain on or easily be whipped off, if you prefer to see its three talented drivers.
The metal top plate adds an extra touch of class and the buttons click nicely, in a build that feels both reverent to traditional techniques and yet strikingly modern.
The fact that it comes from a long line of hits means it doesn’t come cheap though. I’ve written odes to Audio Pro’s beautiful speakers and I helped review the slightly smaller Audio Pro Addon C10 MkII for TechRadar’s sister site, What Hi-Fi?, so I can personally vouch the five-star rating there (and the multiple awards it subsequently gained), although I fear those likely didn’t do much to keep prices low.
In summary, it’s chic, it’s unique and it’s (virtually) the complete package. Why virtually? If you wanted a 3.5mm in for your headphones (or 4.4mm, 6.35mm, or XLR), you won’t find it – you’d have to go the the FiiO R9 for that. The C20 is for the enjoyment of shared music. And what an experience that is.
Audio Pro C20 review: Price and release date
Unveiled January 8, 2024, shipping from March 2024
$550 / £450 / €550 (around AU$820)
The Audio Pro C20 is available for pre-order now, and ships from March 2024. In the US, it costs $550 and in the UK, it’ll set you back £450, hardly a trifling sum, whatever whistles and bells it sports.
That said, the competition here isn’t much more affordable. Yes, the Q Acoustics M40 HD is (excellent and) a music system squirrelled into a set of speakers, but as far as wireless connectivity goes, it’s a Bluetooth only one. Then, there’s the fantastic FiiO R9, with all of the connectivity and hi-res wireless streaming smarts you could wish for, as long as you’ll provide your own speakers or headphones.
Sonus Faber and Naim also offer similar solutions – see the Naim Mu-so Qb, a 2019 release which doesn’t boast an HDMI ARC input, support, or the Sonus Faber Omnia, which does – but while the former is now available for similar money to the C20, the latter is a lot more expensive…
Audio Pro sports so many connections, it advises you on which to use for different kinds of turntable… (Image credit: Future)
Audio Pro C20 review: Specs
Swipe to scroll horizontally
Drivers
2x 1-inch tweeters, 1x 6.5-inch woofer
Weight
6.2kg
Connectivity (wireless)
Wi-Fi 2.4GHz/5GHz, Bluetooth 5.0, Spotify Connect, Tidal Connect, Google Cast, AirPlay 2, Audio Pro multi-room
Connectivity (wired)
HDMI ARC, Toslink, RCA, Phone, Line, Sub Out
Power
190W (2x 30W and 1x130W Calss D amps)
Audio Pro C20 review: Features
Built in RIAA amplifier
Google Cast, Apple AirPlay and Audio Pro’s own multi-room audio option
HDMI ARC
By adding a phono stage to its latest masterwork, Audio Pro C20 can be plugged straight into your devoid-of-phono turntable (as long as it sports a moving magnet cartridge), allowing you to simply power it on, select ‘phono’ on the Audio Pro’s top plate, lower that needle and get into the groove. Got one of the best turntables with an RIAA amp inbuilt? That’s OK too, there’s a separate RCA line in for you too.
Of course, this is Audio Pro, so the new C20 also features the winning multi-room option triumvirate that the company introduced with the 2021-release Addon C10 MkII: AirPlay 2, Google Cast, plus its own multi-room audio capability. You also get Tidal Connect, Spotify Connect, Bluetooth (v5.0) and HDMI ARC – so you can hook it straight up to your TV.
Thanks to a combination of these these things, you can also re-stream music (including vinyl from your turntable) to other Audio Pro speakers you may have collected from its A, C, or D-series, in a wireless multi-room system around your home (and you don’t even have to start making holes in your walls).
The C20 also offers the option of connecting an external subwoofer via its sub-out (the company would direct you to its own Audio Pro SW-5 or SW10) enabling you to enhance the C20’s bass performance even further, should you wish – although I didn’t find this necessary.
Finally, two C20’s can be set-up as a stereo pair using the Audio Pro app, or even via Apple Airplay 2. I think you’ll agree, that’s a lot of options. If you want a 3.5mm headphone jack, you won’t find it… but do you really?
Features score: 5/5
That’s a lot of options – and six presets (Image credit: Future)
Audio Pro C20 review: Sound quality
Clarity, neutrality and detail in spades
Ample bass clout without muddying the soundstage
Not an omnidirectional solution
Simply put, the Audio Pro C20 sounds very good indeed, whether physically hooked up to your TV or turntable, or when commanded to play music by your phone. You might anticipate having to make a compromise when buying a jack-of-all-trades box – a minor hit on sound in return for something that works with everything – but not so here.
Coheed and Cambria’s In Keeping Secrets of the Silent Earth: 3 accessed on Tidal Connectis a raucous proggy album and the C20 never shies away from any of it, serving indomitable energy across the frequencies in a cohesive but rigorously regimented mix.
Given delicate string progressions such as Joni Mitchell’s A Case of You, Mitchell’s textured vocal soars above her dynamically agile and three-dimensional Appalachian dulcimer (and James Taylor’s emotive acoustic guitar) where each musical passage is given enough space to have the necessary impact the track.
When handling TV content, the C20 is an easy (easy!) step up from anything my Sony TV’s speakers can do, opening out the sound and offering that extra ounce of detail through intakes of breath and clacks of high-heeled shoes on cobbles in Shetland.
It’s not a Dolby Atmos solution, of course, and the sound isn’t particularly omnidirectional (owing to the C20’s design), but there’s a wide soundstage here nonetheless.
However I listened to it across the course of my testing, the C20 continued to delight and entertain with its myriad connectivity perks, ease of use and gifted audio chops.
Sound quality score: 5/5
The remote certainly adds value – although volume adjustment is a slightly blunt affair (Image credit: Future)
Audio Pro C20: Design
2x 30W and 1x 130W digital class D amplifiers
Removable grille
Choice of three finishes
The Audio Pro C20 is available in Soft Satin White, Stylish Grey or Classic Black. The woven fabric front is fixed to the C20 by magnets and can be easily removed, giving the option of two very different looks, depending on your favored aesthetic.
I like to take off the grille off to better hear (and observe) Audio Pro’s iconic eyes-and-nose style driver configuration, as seen in the brand’s beloved T3+, C5 MkII and C10 MkII, for starters. Here, you get two 30W and one 130W Digital Class D amplifiers, powering the C20’s dual 1-inch tweeters and a 6.5-inch woofer.
At 41cm across,19.6cm high and 22cm deep (and weighing in at 6.2kg, which roughly the same as a gallon of paint), the C20 is a substantial thing and while it fits under my wall-mounted TV just fine, those thinking of using it as a soundbar will need to think about that height.
My ‘Stylish Grey’ sample is just that. The gold-tone top plate (with solo LEDs to denote which source you’re using as well as lights around the six preset buttons) also helps and while the gold accent on the grille is gone (as seen on the C10 MkII) I don’t miss it. Do I miss Audio Pro’s glorious rock ‘n’ roll leather handle? A little, but I also concede that this isn’t proposition is not meant to be especially portable.
It’s always been hard to find fault with Audio Pro’s build quality, and the C20 is no exception.
Design score: 4.5/5
You need a bit of clearance, but it works with my TV (Image credit: Future)
Audio Pro C20 review: Usability and setup
Simple, app-guided setup
App can handle your music –or not
No supplied remote
After powering the speaker on (in case it needs to be mentioned, the C20 needs to be plugged in to power at all times), you’re quickly guided to the Audio Pro companion app, which will add the C20 to your Wi-FI network and generally do the rest. During my time with it, it neither crashed nor tripped up even momentarily.
On the app, the ‘Browse’ tab (which seeks to keep your music all in one place) will open Apple Music natively through ‘open on Apple Music’ if using an iOS device, but third-party streaming services (such as Tidal) will require you to login again if going this route. You can also select the C20’s source here, whether that’s Wi-Fi, Bluetooth, phono, line in (I hooked it up to the FiiO R9 before setting it up and it did a fantastic job), optical or TV.
The central ‘Device’ tab in the app is meant to organise your speakers rather than your music, so here you can name your speaker, (either the model, or its placement in your home, such as ‘kitchen’) and with the C20 there’s a three-band EQ tab for bass, treble and subwoofer out.
The third and final ‘Settings’ tab basically lets you choose which services are displayed on ‘Browse’, as well as an FAQ section and details on the app version you’re running.
Audio Pro hasn’t supplied a dedicated remote control in the box (although if you’re using the HDMI ARC to your TV, you can just use your TV’s remote for volume) and honestly, I don’t miss it, because the app does the heavy lifting – or of course, you can use the premium top plate.
Usability and setup score: 5/5
Audio Pro’s companion app makes it really easy to group your music and your wireless speakers for multi-room audio (Image credit: Future)
Audio Pro C20: Value
Obviously, if you don’t have the expendable income to afford such a speaker, it doesn’t matter how good it is – you won’t be buying it.
That said, Sonus Faber will offer you something with a similar spec sheet that’s double the price, while Naim has an older option that offers less in terms of connectivity, but sounds excellent, for similar money (see below for a comparison of these products).
My advice? You will not be disappointed with the sound-per-pound value here.
Value score: 4.5/5
Audio Pro C20 review: Should you buy it?
Buy it if…
Don’t buy it if…
Audio Pro C20: Also consider
Swipe to scroll horizontally
Audio Pro C20
Naim Mu-so Qb (2019)
Sonus Faber Omnia
Price
$550 / £450 (around AU$820)
$899 / £749 (around AU£1300) but can be found for less
$2,000 / £1,600 / AU$3,500
Drivers
2x 1-inch tweeters, 1x 6.5-inch woofer
7-driver array
7-driver array powered by a 490W amplifier
Connectivity (wireless)
2.4GHz/5GHz Wi-Fi, Bluetooth 5.0, Tidal Connect, Spotify Connect, Google Cast, AirPlay 2, Audio Pro app for multi-room connectivity
Ethernet (10/100Mbps), Wi-Fi (802.11a/b/g/n/ac), BLE v4.2,Apple AirPlay 2, Chromecast Built-in, UPnPTM, Spotify Connect, TIDAL, Roon Ready, Bluetooth, Internet Radio
2.4GHz/5GHz Wi-Fi, Bluetooth 5.0 (aptX HD), AirPlay, Chromecast, Spotify Connect
Weight
6.2kg
5.6kg
7.6kg
Connectivity (wired)
HDMI ARC in, Phono, RCA line in, Optical Toslink in, Sub out
Optical S/PDIF, USB 2 (type A), 3.5mm jack
Switchable phono/line in (for turntable analog devices), HDMI Arc in, Ethernet port
Audio Pro C20 review: How I tested
Tested across seven days
Used as a TV soundbar, wireless speaker, wired to the FiiO R9, wired to a turntable and as a Wi-Fi and Bluetooth speaker
Listened to a variety of music; watched three episodes of an action-packed TV show
When testing the Audio Pro C20, the only connection I didn’t use was the subwoofer out – because honestly, I really like Audio Pro’s tuning within its speakers and never felt the need to try to augment the low end.
The analogue inputs accommodated both pre-amplified and non-amplified turntables, the digital optical was used for a CD player, the line in for FiiO R9 (as a source device), my TV was hooked up to it… and, of course, Bluetooth and my home Wi-Fi network were handy for using it with my iPhone.
And then it’s the usual: listening to lots of familiar music from my reference playlist, (as well as three episodes of Shetland on TV, which I’m really into and highly recommend – yes, I know I’m late to that particular party) at a variety of volume levels, for the duration of my testing.
As a brief aside, I removed the grilles for the duration of my testing – it’s what I always do whenever possible. Why? The fewer physical obstructions between you and your music, the better…
This audio interface turns your Mac into a music studio for two microphones and two instruments. Photo: Focusrite
If you’re going to make and manipulate music or other sound with your Mac setup, odds are you need a good audio interface. Today’s Mac Studio workstation relies on a Focusrite Scarlett 2i4 USB audio interface when the user makes YouTube videos, for example.
Check it out below, along with the rest of the setup’s gear.
This post contains affiliate links. Cult of Mac may earn a commission when you use our links to buy items.
Focusrite Scarlett audio interface masters Mac Studio setup’s sound
Redditor bucketofmonkeys (“Monk”) showcased the setup in a post entitled, “New Mac Studio M2 Max setup.” On Monday we covered his refurbished M2 Max Mac Studio and Studio Display. On Wednesday we zeroed in on his Keychron K8 tenkeyless mechanical keyboard.
Today is all about his Focusrite Scarlett 2i4 USB audio interface. That’s an older model, but Scarlett makes a bunch of high-quality audio interfaces, some of which are featured in Cult of Mac’s upcoming feature about the best audio interfaces for Mac.
“I’ve had it for about a decade now. I used to make [YouTube] videos and used it to record my voiceovers,” Monk said when we asked about the Scarlett. “Now I mainly use it as a headphone amp for when I want to use my nice headphones (Sennheiser HD 598). It’s been pretty reliable, although the headphone jack is starting to get a little flaky over the years.”
A connector and converter for sound
An audio interface connects audio equipment to your Mac. And it converts analog audio signals from various sources, like microphones and musical instruments, into digital signals. That way, you can alter and record the sound using Digital Audio Workstation (DAW) software installed on your computer.
The interface often handles digital-to-analog conversion (DAC), too, allowing you to listen through headphones or studio monitors, aka speakers. Many interfaces come preloaded with software, so shop carefully to get exactly what you want.
In the case of Monk’s interface, it features two microphone inputs and two instrument inputs as well as four outputs for speakers, headphones and MIDI.
Scarlett 2i4 audio interface features:
Two natural-sounding Scarlett mic preamps with plenty of even gain; two instrument inputs. Two 1/4-inch balanced jack outputs to connect professional studio monitors; one headphones output with gain control; MIDI I/O
Conversion and sample rates up to 192kHz / 24 bit; low roundtrip latency for using your plug-ins in real time without the need for DSP.
Includes Pro Tools | First Focusrite Creative Pack and Ableton Live Lite, Softube Time and Tone Bundle, Focusrite’s Red Plug-in Suite, 2GB of Loopmasters samples, Choice of one free XLN Addictive Keys virtual instrument, all available via download upon purchase and registration.
Compatible with Mac OS X 10.10 and higher and Windows 7 and up. Frequency response – 20 Hz – 20 kHz ± 0.1dB. Supported Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz.
3-year warranty
You can find all the gear in the gear list below, including the audio interface (pictured furthest left in the photograph below, under a mouse and a guitar picks).
This user said it’s hard to tell his Apple-refurbished Mac Studio and Studio Display aren’t new. Photo: [email protected]
Shop these items now:
Focusrite Scarlett audio interface:
Computer:
Display and accessories:
Mechanical keyboard and mouse:
Connectivity:
Other:
If you would like to see your setup featured on Cult of Mac, send some high-res pictures to [email protected]. Please provide a detailed list of your equipment. Tell us what you like or dislike about your setup, and fill us in on any special touches, challenges and plans for new additions.
Have you ever found yourself frustrated by the constant connection issues of Wi-Fi speakers? Or maybe tired of the never-ending cycle of app updates? We’ve uncovered the latest 2024 gadget, the Petastream S20 App-free Wireless Multiroom Speaker, which addresses these concerns. Ditch the hassle of sign-ups and passwords; this speaker offers straightforward Bluetooth connectivity, allowing you to link up to five speakers simultaneously for unmatched sound quality.
The S20 integrates with a SKAA-compatible protocol, ensuring high-quality, low-latency audio connections and flawless synchronization across speakers. This avoids common wireless interference and delays. The best part is that the S20 can connect seamlessly with SKAA-enabled devices, such as Soundboks speakers, offering smooth cross-brand compatibility. This broadens its appeal without restricting users to a single brand ecosystem.
Besides the features mentioned, Petastream innovatively transforms the S20 speaker into an intercom, capable of supporting conversations through three channels. This patented blend of speaker and intercom features is designed for seamless audio and communication in large areas or across multiple rooms.
The Petastream S20, an App-free Wireless Multiroom Speaker, is listed at USD 249. Exclusive discounts on Indiegogo are now available, ranging from USD 161-199 per speaker through Super Early Bird specials for this incredible project. This is approximately equivalent to GBP 127.8-198.13 (actual amount subject to the exchange rate at the time of the Indiegogo campaign transaction), offering a substantial discount of UP TO 35% off the list price.
Elevating Spaces with Petastream S20: innovative tech for entertainment & communication.
The Petastream S20 speaker, with its user-friendly tech, is ideal for parties, pleasing both hosts and guests. It offers an extensive wireless range—up to 180 m/590 ft outdoors and 20-30 meters (65-98 feet) indoors, with performance depending on the environment. Its straightforward interface allows guests to easily play their favorite songs without complex setups. Party attendees won’t need to join a ‘Family group’ to use the speakers; just a simple Bluetooth connection enables music playback throughout the house, adding to the convenience and party atmosphere.
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Uncover the Features That Distinguish Petastream S20 Speaker
The S20 speaker delivers a smooth and seamless audio experience, not only by eliminating the need for complicated apps but also by featuring an intuitive one-touch panel that’s practical and user-friendly for people of all ages. This panel facilitates easy switching between transmitter and receiver modes, allowing access to all functions. With versatile connectivity options like Bluetooth 5.0, AUX-in, and compatibility with the SKAA audio transmission protocol, the S20 makes setting up your music network quick and effortless to get started.
Equipped with two full-range drivers, the Petastream S20 features integrated dual 15W speakers that produce clear, balanced stereo sound with minimal distortion. Its audio EQ is finely tuned by professional audio experts, guaranteeing high-fidelity sound quality across all volume levels. With the ability to toggle between left, right, and stereo channels, the S20 lets you experience the clear and distinct sounds of different rhythms and vocals, creating an immersive experience.
The S20 streamlines the audio experience with easy setup and no network constraints, ensuring flexible placement. Just plug it into power, connect via Bluetooth with a button press, and link up to five speakers through the transmitter and the receiver mode to transform any area into a personal DJ booth, home theater, or enhance commercial venues. Forget the hassle and cost of multiple audio sources and professional setup—S20 offers the ease of single-click functionality from its physical buttons.
The Petastream S20 redefines audio and communication in large spaces or multiple rooms. It features a unique, patented combination of audio and intercom technologies, facilitating seamless conversations. This innovation sets a new standard for integrating sound with communication, offering users a versatile and enriched audio experience.
For a complete list of all available special pledges, stretch goals, extra media, and product specifications for the Petastream S20 App-free Wireless Multiroom Speaker, jump over to the official Petastream crowdfunding campaign page by checking out the link below.
Source Indigogo
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