Are - rk3288 board, plug in the usb sound card play music, recording ou no problem, but when using the company developed the app, usb sound card can only be typing sound, but can't play voice, do you recognize that this is how to return a responsibility?

CodePudding user response:

Grabbed the log and see if it is permission problems

CodePudding user response:

reference 1st floor usecf response:

grabbed the log and see if it is permission problems

AudioFlinger log?

CodePudding user response:

I think maybe because to make a phone call, the sound source is not from the local, the default output source is the receiver?

CodePudding user response:

Because now find audio output mode is in_call, native android in_call mode without usb_device,
Now have two scheme
1 is in in_call mode add usb device output
2 is about usb device is set to the highest priority

Two solutions are tried, but still no sound, strives for the bosses to give directions

CodePudding user response:

The original poster hello, I also encountered the problem of the usb sound card play, android, there is no problem with usb sound recording, but the play when there is no voice, but do you have solved?

CodePudding user response:

reference 5 floor qq_33356140 reply:

the original poster hello, I also encountered the problem of the usb sound card play, android, there is no problem with usb sound recording, but the play when there is no voice, but do you have solved?

usb device priority under audiopolicy to give it a try