emulator might not function correctly, please try updating the emulator.

Emulator: WARNING: unexpected system image feature string, emulator might not function correctly, please try updating the emulator.

16:45 Emulator: Unexpected feature list: DynamicPartition GLDirectMem HostComposition MultiDisplay RefCountPipe VirtioInput VulkanNullOptionalStrings YUV420888toNV21 YUVCache

16:45 * daemon not running; starting now at tcp:5037

16:45 * daemon started successfully

16:45 Emulator: audio: Failed to create voice `goldfish_audio_in'

16:45 Emulator: qemu-system-x86_64.exe: warning: opening audio input failed

16:45 Emulator: audio: Failed to create voice `adc'

解决方案： 选择Emulator比当前 API 版本低一个版本当前API-29 Emulator-28,，我市64系统的，不要选择Google APIs(新手海不知道为啥)完美解决

 

运行显示效果

2019/12/28
19:12    Emulator: dsound: Could not initialize DirectSoundCapture

19:12    Emulator: dsound: Reason: No sound driver is available for use, or the given GUID is not a valid DirectSound device ID

19:12    Emulator: dsound: Attempt to initialize voice without DirectSoundCapture object

19:12    Emulator: dsound: Attempt to initialize voice without DirectSoundCapture object

19:12    Emulator: audio: Failed to create voice `goldfish_audio_in'

19:12    Emulator: E:\java\sdk\emulator\qemu\windows-x86_64\qemu-system-x86_64.exe: warning: opening audio input failed

19:12    Emulator: dsound: Attempt to initialize voice without DirectSoundCapture object

19:12    Emulator: dsound: Attempt to initialize voice without DirectSoundCapture object

19:12    Emulator: audio: Failed to create voice `adc'

19:13    Emulator: Process finished with exit code 0 这是声音没有设置，网上有大把，不列解决方案了