Aptx lossless ROG 9 pro

[AEDIS]

The website supports the codec Aptx Lossless, but the phone doesn’t. Why?

[AEDIS]

How can I be sure where I can see that a high-quality codec is being used?!

[Mattias_ASUS · Accepted solution]

I got a reply from our team.
While it's not possible to see an indicator that shows you are using, it is normally activated if these requirements are fulfilled.

1. aptX adaptive Lossless supported on both phone and headphones
2. Music file format: 16-bit, 44.1kHz/48kHz sampling frequency etc.
3. Wi-Fi disabled, or, Wi-Fi connects to 5G instead of 2.4G
4. Users could use YT music to play 16-bit, 44.1kHz/48kHz sampling frequency format files on phone; may not be supported on live-stream music

[AEDIS]

Thank you so much for the detailed and comprehensive answer; there's almost no information on this topic online. The implementation of the limitations when using Wi-Fi 2.4 is a bit odd, but now we're fully equipped and know the best conditions for activating this high-quality sound mode!

[MikeHustonf]

Honestly, I’m glad this topic came up because I’ve noticed the same confusion around AptX Lossless on the ROG 9 Pro. On paper the phone should support it even the official AptX website lists the device. But in real use, the codec never appears in the Bluetooth settings, even when pairing with headphones that definitely support AptX Lossless.

It feels like either the feature isn’t enabled in the current firmware or it’s restricted in a way that isn’t documented. That’s why many users think they’re missing something, while the screenshots clearly show the codec isn’t available.

Hopefully the dev team takes a closer look, because it would be strange for a gaming flagship to lag behind other 8 Gen 3 devices when it comes to audio features.

[Durand]

In case of Noble Rex5 TWS earphones LE codec is better than aptX or LDAC.