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High-Res / USB DAC issues on build 944 and above


Mukul Kalsait
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I update last night to v.944 and hires giving very low sound . It was working fine in 942(best) and 943

Just to get 96khz and 192khz output i moved from Android 12 to Android 10 ...

Now i am using MIUI 12.1 Android 10 

Poco F1 with USB DAC fiio KA3 ... 

Please help fixing this or atlease provide downgrading option

07:53:44.081 build-944-bundle-play

Device: Xiaomi Xiaomi POCOPHONE F1 beryllium sdm845 "qcom" beryllium Mind Edition [arm64-v8a, armeabi-v7a, armeabi]

 

sdm845 is_snapdragon

MIUI=10

reading /vendor/etc/audio_output_policy.conf

has direct_pcm_24, sampling_rates=44100|48000|88200|96000|176400|192000|352800|384000

AUDIO_OUTPUT_FLAG_DIRECT direct_pcm_24

has direct_pcm_24 formats=AUDIO_FORMAT_PCM_24_BIT_PACKED|AUDIO_FORMAT_PCM_8_24_BIT|AUDIO_FORMAT_PCM_32_BIT

FLAG_VARIANT_DIRECT_HD via direct_pcm_24

=> FLAG_VARIANT_DIRECT_HD_MIUI_STREAM

USB can handle Hi-Res - sdk=29

>>>OK flags=0xe14016600008000

FLAG_VARIANT_DIRECT_HD_MIUI_STREAM

FLAG_SUPPORTS_PCM_8_24

FLAG_SUPPORTS_PCM_24

FLAG_SUPPORTS_PCM_32

FLAG_SUPPORTS_UNITY_GAIN_STREAM

FLAG_SUPPORTS_USB

FLAG_NEEDS_EXTRA_SLEEPS

FLAG_SUPPORTS_LDAC

PA_OUTPUT_CAP_NEEDS_VOL_UI

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

INTERNAL_OUTPUT_FLAG_SR_48K

INTERNAL_OUTPUT_FLAG_SR_44K

 

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@Mukul Kalsait @Luis David García Solano  Thanks for the reports. There have been some changes made to the hi-res detection process, largely to help with issues in Android 13, but as with any beta-test release there may be unexpected repercussions too - that's the point of test releases, to find these sort of issues before unleashing changes on the whole market.

@Luis David García Solano Could you provide more details, such as the external USB DAC you are using and the Audio Outputs Detection Log (found in PA Settings=>Audio=>Advanced Tweaks).

 

The last stable release was build 939, which can be downloaded from: 

If you want to roll back, you will need to do a full uninstall first, so please make sure you export/backup your Settings/Data first so you don't lose any internal playlists, ratings, etc. As you are going to have to perform a clean install anyway, could you perhaps first try clearing app data for 944, so it thinks it is a new installation, and see if the problems still persist before you roll back?

Andre

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@Mukul Kalsait use Restore Defaults on your hi-res output. This should (probably, depending on ROM/device) enable No DVC option that will enable "real" hi-res, not just incorrect info as shown previously. The "issue" is mostly for Snapdragon based devices on Android 10-11 which are not capable to output hi-res + DVC on 3.5 and sometimes on USB or BT. Issue is in quotes as this is non-issue. For hi-res you don't want DVC.

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  • andrewilley changed the title to High-Res / USB DAC issues on build 944 and above

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