edowar/android_device_fih_fb0 — comment on commit 7473277e466f6ae1d0759df8c214ee885b95651c
File:  line 0
By edowar:

maybe this is relating with libaudio.

set audio at boardconfig file to

# Audio
BOARD_USES_GENERIC_AUDIO := false

and if you build from ikarosdev repo also delete audio_policy folder.