Problem when developing play and recognize audio function

Hi, i successfully built an app on ReSpeaker Core v2, but when using MediaPlayer to play an audio, it’s not working, the same problem happen when i use SpeechRecognizer to recognize audio, the SpeechRecognizer object also can’t start to record. I have tried with the built-in tinycap and tinyplay and both are working, so i don’t think this is an issue with the hardware, may i need to specify or setting something to make it works on Android? Please help me!

Note: I have also turn the RECORD_AUDIO permission on

Hi there,



for the app, please use the tinycap api for the audio process. thanks.