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Monday, September 27, 2021

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

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2021 has been a giant 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 principal challenges confronting lossless audio is how you can 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 characteristic the brand new know-how are anticipated to be obtainable 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 information 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 price of 1.4Mbps. However Qualcomm is utilizing lossless compression to ship mathematically bit-for-bit precise audio copy.

In environments with quite a lot of wi-fi congestion, the bit price will dynamically scale down as little as 140kbps to take care of the most effective audio efficiency based mostly on connection high quality. LDAC can wrestle in real-world eventualities if you’re pushing it to its bit price limits, so it’s not shocking to see Qualcomm supply an answer to smoothen out the expertise.

CD high quality is the place aptX Lossless tops out. You’ll be able to 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 massive on these 24-bit 96kHz recordsdata.

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