Qualcomm’s aptX Lossless guarantees CD-quality audio for wi-fi headphones


2021 has been an enormous yr for lossless music now that Apple has gone in on the higher-quality streaming and Amazon is no longer charging an added premium for it. However one of many primary challenges confronting lossless audio is tips on how to play it wirelessly (at full constancy) on wi-fi headphones and earbuds. Qualcomm thinks it has discovered an answer with the brand new aptX Lossless, which is a part of the corporate’s Snapdragon Sound program introduced earlier this yr.

With aptX Lossless (which is technically an extension of aptX Adaptive), Qualcomm says it’ll be capable of stream CD-quality, 16-bit / 44.1kHz lossless audio over Bluetooth. The primary gadgets to function the brand new expertise are anticipated to be accessible in early 2022. Snapdragon Sound leans on the entire {hardware} chain for optimum efficiency — so each your Android cell phone and your earbuds or headphones might want to assist it.

But when they do, Qualcomm says Snapdragon Sound will mechanically detect a lossless audio supply and be capable of play it at a lot larger knowledge charges than beforehand potential with aptX HD. The corporate has managed to outdo Sony’s LDAC when it comes to bandwidth: aptX Lossless can hit as much as 1Mbps in comparison with LDAC’s ceiling of 990kbps. There’s nonetheless some compression being utilized; CD-quality music sometimes has a pattern bit fee of 1.4Mbps. However Qualcomm is utilizing lossless compression to ship mathematically bit-for-bit actual audio copy.

In environments with numerous wi-fi congestion, the bit fee will dynamically scale down as little as 140kbps to take care of the very best audio efficiency primarily based on connection high quality. LDAC can battle in real-world situations whenever you’re pushing it to its bit fee limits, so it’s not stunning to see Qualcomm provide an answer to smoothen out the expertise.

CD high quality is the place aptX Lossless tops out. You may nonetheless play hi-resolution audio tracks, however that’ll lead to lossy streaming, so that you’ll need to preserve a wired answer round for those who’re huge on these 24-bit 96kHz information.



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