Autodetection of output sample rate?

[Forza]

Hi,

It seems that Poweramp isn't detecting the sample rate used by the end device, and so it resamplea 44.1->48 and back again.

* Samsung S24 Ultra with OneUI 6.1/Android 14.

* Poweramp build 987

When I use my Sony WH-1000XM5 with LDAC it correctly identifies 32bit/96kHz, but not when I cast to my TV (and I also think it doesn't detect Android Auto at all).

I've tried a few different output modes, but none really work. With OpenSL ES it works if I manually select 44.1, while 'Selected by device' does not.

 

 

Edited September 27 by Forza

[Forza]

Here is audio detection info:

 

16:11:30.722 build-987-bundle-play
Device: samsung samsung SM-S928B e3qxeea pineapple "qcom" e3q UP1A.231005.007.S928BXXU3AXH7 [arm64-v8a]

pineapple is_snapdragon
Snapdragon Android 12+
samsung band
FLAG_VARIANT_SAMSUNG_UHQA
2 changelist=29543898
USB can handle Hi-Res - sdk=34
>>>OK flags=0x11671c400000000
FLAG_VARIANT_SAMSUNG_UHQA
FLAG_SUPPORTS_PCM_24
FLAG_SUPPORTS_PCM_32
FLAG_SUPPORTS_USB
FLAG_NEEDS_EXTRA_SLEEPS
FLAG_SUPPORTS_SPEAKER
FLAG_OUT_PARAMS_UNDETECTABLE
FLAG_SUPPORTS_LDAC
FLAG_ALLOW_DVC_EFFECT
FLAG_BT_DVC_EFFECT
FLAG_STOP_FOR_PAUSE
INTERNAL_OUTPUT_FLAG_SR_384K
INTERNAL_OUTPUT_FLAG_SR_352K
INTERNAL_OUTPUT_FLAG_SR_192K
INTERNAL_OUTPUT_FLAG_SR_176K
INTERNAL_OUTPUT_FLAG_SR_96K
INTERNAL_OUTPUT_FLAG_SR_88K
 

Edited September 27 by Forza

[andrewilley]

Seems as though the BT output to your TV is setting itself to SBC 16-bit 44.1kHz (which PA is unlikely to be able to alter). As your source file is the same anyway, just set the Output options manually to 16-bit/44.1kHz. You can do that in High-Res output if you wish, or I tend to use AAudio (some Android ROMs default to 48kHz, so you may need to force it). 

Andre

[Forza]

Yes, unfortunately the TV can't do better. What I wanted though, is to avoid the first 44.1>48kHz and that this be autodetected by Poweramp as different BT devices suppory different formats. It would be ideal if Poweramp could detect this so I don't have go and manually change output mode when switching devices.

If autodetection cannot work, perhaps it is possible to create 'per-device' output presets that can be applied like the AutoEQ does for the equaliser?

Edited September 27 by Forza

[andrewilley]

Sadly, Android ROMs don't always provide that info about output devices, and then they resample whatever they're given. Perhaps @maxmp might be able to create a workaround that allows proper detection, but in the past he's indicated that's not reliable across all devices/ROMs.

Andre

[Forza]

I understand it's not easy. However, Poweramp seems to be able to correctly identify the BT device and set the corresponding EQ. I guess my feature request is to have something similar for the output settings. Does that make sense?