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So how does aptX HD stack up against its close codec rival, LDAC? Sony's LDAC codec is technically the most efficient codec with a higher data rate. The point is, aptX HD is continuing to gain traction.

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We could go on, but we'll leave you to scour the spec sheets of the product(s) you're interested in (or browse the full list of 300+ products that support aptX HD here (opens in new tab)).

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Want to add aptX HD to your existing setup? Check out the iFi Zen Blue, which can add offline streaming to your system. The Ruark R5 desktop system comes with aptX HD built-in, as does the NAD C 658 music streamer. Supporters include (but aren't limited to) Naim's Uniti Star, Atom, Nova streaming music systems Cambridge Audio's Edge A and Edge NQ amplifiers and Evo 75 and Evo 150 streaming systems the Dali Callisto and Oberon all-in-one speaker systems Bowers and Wilkins' Formation Duo and other Formation products. As for Bowers & Wilkins, its PX, PX7 and Pi3 headphones are all aptX HD certified, as are its latest PI7 true wireless earbuds.Īudio Technica's ATH-DSR9BT, ATH-DSR7BT and ATH-DSR5BT wireless headphones are also on the list, as are pairs from Cleer, PSB, Audeze, NAD, HIFIMAN and Nurophone.Īdoption on the hi-fi side has been growing too. For example, the Award-winning Astell & Kern A&norma SR25 (and its MKII version) and A&futura SE200 players are compatible with the codec.īeyerdynamic's excellent Xelento Wireless, Aventho and Amiron Wireless headphones support aptX HD too, as do Sony's WH-1000XM3 and WH-XB900N.

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When it comes to portable music players, Astell & Kern is the most prominent supporter of aptX HD alongside Sony's Walkman. Baffling.īut now aptX HD isn't just in headphones but everywhere – in headphones, wireless systems, music streamers and even a Cambridge Audio turntable. Notable exceptions include Apple's iPhones – they don't support the aptX codec at all – while Samsung's recent generations of Galaxy and Note devices (including the new Galaxy S22 handsets) support aptX but not aptX HD.

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That includes the latest Sony Xperia 1 III, OnePlus 9 Pro and Google Pixel 6 flagship handsets. Other LG phones quickly followed – and support is now fairly common across various phones from Sony, OnePlus and Google.

Read all about Sony's LDAC: what is it? aptX vs LDACĢ016's Award-winning LG G5 was the first smartphone to adopt aptX HDĪndroid smartphones and tablets were some of the first products to implement aptX HD since its launch, with the LG G5 being the very first smartphone to adopt it.

Interestingly, aptX HD is missing from the spec sheet of the newer Sony WH-1000XM4 – our current favourite wireless headphones – in favour of Sony's own LDAC codec, which allows high-res audio streaming over Bluetooth at up to 990 kbps at 24 bit/96kHz – higher than aptX HD. And there are plenty of class-leading headphones we've heard, such as the Sony WH-1000XM3, Bowers & Wilkins PI3 and Beyerdynamic Amiron Wireless, that use it. Whether it is a match for a wired hi-res signal is debatable, and straightforward comparisons are tricky as you can't turn aptX HD on or off on products as a means of discerning differences in sound quality, but Qualcomm is boldly gunning for ‘better-than-CD’ sound quality here with its wording. Compression remains at a ratio of 4:1, with a bitrate of 576kbps. It was released in reaction to the increasing popularity of hi-res audio and supports audio at 24-bit/48kHz.

Now for aptX HD, which is essentially an updated, beefed-up aptX with the ability to transfer music in a way that permits better sound quality.

Here's everything you need to know about high-resolution audio.

Classic aptX has a compression ratio of 4:1 and a data rate of 352kbps. It's also designed to sound better than standard Bluetooth. Note that it is ‘CD-like’ and not ‘CD-quality’ because aptX uses compression (which helps to reduce audio-coding delays and minimise latency issues) and therefore, like most other Bluetooth codecs out there, is not lossless. What’s the big deal about aptX? Its party trick is the ability to transmit music, full bandwidth, at a ‘CD-like’ 16-bit/44.1kHz. These days, aptX is synonymous with Bluetooth, which you’ll find on plenty of computers, smartphones, AV receivers, and plenty of other consumer electronics products. Steven Spielberg was an early adopter, collaborating to use aptX to record audio for 5.1 digital playback for films including Jurassic Park in 1993, and later Schindler’s List and Saving Private Ryan. It is an audio-coding algorithm, created in the late 1980s, popular with film studios and radio broadcasters. To understand what aptX HD is, we need to discuss what ‘classic’ aptX is.