Broken bluetooth playback

[innit86]

For some reason this module breaks bluetooth playback on Pixel 7 Pro. Speaker and wired headphones work but not bluetooth. I've tried older versions as well as the newest one and all have this issue.

[yzyhk904]

My module disables the effect framework itself. But Pixel 7 Pro uses an "immersive_out" mixer (a kind of effector) defined in audio policy configuration files for 3D sound and cannot avoid the mixer for bluetooth devices without replacing the audio configuration files. (However I think your bluetooth device possibly may work if you change its codec to be AAC or SBC)

Disabling the effect framework is the best for hi-fi music replay. So my recommendation is to use my another tool USB_SampleRate_Changer for replacing the policy files. Or if you like convenience, edit "system.prop" (delete "ro.audio.ignore_effects=true" line) in this module zip file and re-install it.

[yzyhk904]

I released a new version to bypass Pixel 6&7 spatial audio feature. This version automatically overlays a modified bluetooth audio configuration (without spatial audio flags) on its original one.

[y6yuan]

My module disables the effect framework itself. But Pixel 7 Pro uses an "immersive_out" mixer (a kind of effector) defined in audio policy configuration files for 3D sound and cannot avoid the mixer for bluetooth devices without replacing the audio configuration files. (However I think your bluetooth device possibly may work if you change its codec to be AAC or SBC)

Disabling the effect framework is the best for hi-fi music replay. So my recommendation is to use my another tool USB_SampleRate_Changer for replacing the policy files. Or if you like convenience, edit "system.prop" (delete "ro.audio.ignore_effects=true" line) in this module zip file and re-install it.

same issue with v1.3.5 when use apt codex, pixel 7 pro android 14. After change codec to SBC, the bluetooth playback works

[yzyhk904]

Can you check if there is a line like <mixPort name="a2dp output" role="source" flags="AUDIO_OUTPUT_FLAG_SPATIALIZER"/> in` "/vendor/etc/bluetooth_audio_policy_configuration_7_0.xml" ?

This module must replace the line with <mixPort name="a2dp output" role="source" /> if it succeeds.

[y6yuan]

sorry for late after reinstall and checked: the flag AUDIO_OUTPUT_FLAG_SPATIALIZER still exist. Btw, i am using APatch, maybe it's the reason :(

yzyhk904 @.***> 于 2024年1月10日周三 17:59写道：

Can you check if there is a line like <mixPort name="a2dp output" role="source" flags="AUDIO_OUTPUT_FLAG_SPATIALIZER"/> in` "/vendor/etc/bluetooth_audio_policy_configuration_7_0.xml" ?

This module must replace the line with if it succeeds.

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[yzyhk904]

Please tell me if you can reproduce this issue by using magisk. I don't have any Pixel 7 Pro.