Bluetooth bug: LDAC defaulting to "Adaptive Bit Rate"

ZapZen

I recently got a pair of earbuds that support LDAC to listen to my FLAC files. Every time I connect them LDAC defaults to "Adaptive Bit Rate" (that can go as low as 330kbs) even if I select the best quality option "Optimised for Audio Quality (960kbs/909kbs)" in the Developer Options. Is there a way to fix that? I'm currently using a paid app that runs in the background and changes this setting every time I connect the earbuds, which is not optimal.

teezeh

Can you hear a difference between 330 and 960 kbps?

ZapZen

teezeh yes, but it depends on one hearing acuity. the encoding and even the player used seem to make a difference.

trilogy6202

No, to my knowledge what you describes is unfortunately expected behavior.

I assume the app you are referring to is Bluetooth Codec Changer. I use this app with only the "Nearby devices" permission and while I would definitely prefer a native solution or at least a FOOS app, I still prefer using Bluetooth Codec Changer rather than having to go into developer options every time I reconnect my BT headphones.

fid02

Seems to be a common Android issue: https://www.reddit.com/r/SonyHeadphones/comments/17a64rc/made_ldac_on_highest_settings_possible_using/?rdt=43879

ZapZen yes, but it depends on one hearing acuity. the encoding and even the player used seem to make a difference.

Interesting. Even under A/B tests? Is LDAC really such a poorly optimized codec that it cannot achieve transparency at 330 kbps when transcoded from a truly lossless audio source?