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Exclusive HQ USB Audio Access
Do you have any documentation how do this? Because Android does not have API to do that.
Lossless USB audioAndroid 14 gains support for lossless audio formats for audiophile-level experiences over USB wired headsets. You can query a USB device for its preferred mixer attributes, register a listener for changes in preferred mixer attributes, and configure mixer attributes using a new AudioMixerAttributes class. It represents the format, such as channel mask, sample rate, and behavior of the audio mixer. The class allows for audio to be sent directly, without mixing, volume adjustment, or processing effects. We are working with our OEM partners to enable this feature in devices later this year.
I have tried this API, it doesn't work with external DAC
I have tried with Fiio k5 and iBasso DAC. It works with USB player pro, but doesn't work with these api
С iBasso тоже как-то неоднозначно. Где-то пишут работает, где-то нет. Похоже, зависит не только от модели iBasso, но и от самого телефона.https://www.reddit.com/r/TIdaL/comments/x4fszo/ibasso_dc06_wont_output_mqa_for_tidal_masters/?tl=ruhttps://www.reddit.com/r/HeadphoneAdvice/comments/ovx594/ibasso_dc04_for_meze_99/?tl=ruОтдельно посмотрел dc07pro и по спецификации нельзя однозначно сказать о поддержке атрибута. По спецификации чипа тоже не указано (не нашёл прямого упоминания).https://ibasso.com/product/dc07pro/https://www.cirrus.com/products/cs43131