android audio 音频调试技巧

目录

1. 常用命令 .....................................................................................................................................2

1.1 查看当前声卡信息............................................................................................................2

1.2 查看 PCM 设备列表..........................................................................................................2

1.3 查看 PCM 占用情况..........................................................................................................2

1.4 查看音频节点 ...................................................................................................................3

1.5 dumpsys *audio*分析 ........................................................................................................3

1.5.1 dumpsys media.audio_policy...................................................................................3

1.5.2 dumpsys media.audio_flinger..................................................................................4

2.3.2 apk 录音操作介绍..................................................................................................8

2.4 验证录音是否 ok...............................................................................................................8