Unfortunately, audio quality is still poor. But you can install ViPER4Android. I found it pretty hard to make Viper work properly, so here is a mini guide:
1. Install Audio Modification Library and Audio Compatibility Patch through Magisk.
2. Install ViPER4Android FX through Magisk.
3. Reboot. Open Viper and install the audio driver.
4. Find the file "/data/adb/modules/ViPER4AndroidFX/post-fs-data.sh".
Add this code to the end of the file:
5. Reboot. Now open Viper and enable Legacy mode. You are ready!
Disable any app equalizer (e.g. Spotify or Youtube Music equalizers).
For this solution I used this post comment. If you know any better (and faster) way, please let me know.
1. Install Audio Modification Library and Audio Compatibility Patch through Magisk.
2. Install ViPER4Android FX through Magisk.
3. Reboot. Open Viper and install the audio driver.
4. Find the file "/data/adb/modules/ViPER4AndroidFX/post-fs-data.sh".
Add this code to the end of the file:
Code:
magiskpolicy --live 'allow audioserver audioserver_tmpfs file { read write execute }'
magiskpolicy --live 'allow audioserver system_file file { execmod }'
magiskpolicy --live 'allow mediaserver mediaserver_tmpfs file { read write execute }'
magiskpolicy --live 'allow mediaserver system_file file { execmod }'
magiskpolicy --live 'allow audioserver unlabeled file { read write execute open getattr }'
magiskpolicy --live 'allow hal_audio_default hal_audio_default process { execmem }'
magiskpolicy --live 'allow hal_audio_default hal_audio_default_tmpfs file { execute }'
magiskpolicy --live 'allow hal_audio_default audio_data_file dir { search }'
magiskpolicy --live 'allow app app_data_file file { execute_no_trans }'
magiskpolicy --live 'allow mtk_hal_audio mtk_hal_audio_tmpfs file { execute }'
5. Reboot. Now open Viper and enable Legacy mode. You are ready!
Disable any app equalizer (e.g. Spotify or Youtube Music equalizers).
For this solution I used this post comment. If you know any better (and faster) way, please let me know.