Hi, all
Sorry, I'm newer to FSL board, some problem might seems easy, but i am still confused. now, we have a imx6q sabreauto reference board installed with Android 4.3. i have done such operation, but found there is no sound output:
1) open "Sound Recorder" apk
2) plug in microphone in J26-1 (mics-in), connected to CS42888 AIN3+/AIN3-
3) start to record and speak toward to microphone for a moment.
4) stop record and play the record file, but I cannot hear any sound output ( however, i can hear audio if playing the music in SD card).
Analog signale waveform can be masured input to CS42888 AIN3+/AIN3- with oscilloscope, if speak more loundly toward microphone, the waveform will be changed, it seems microphone works well.
Could somebody kindly help me? many many thx ^^
I have a new found that if AIN1/AIN2 connected to a audio line-in, then the record file has sound output.
So i think the recorder select ADC_SDOUT2 as microphone input. does any guy know where to select ADC_SDOUT1 or ADC_SDOUT2 as microphone input?
My sound devices as below:
2|root@sabreauto_6q:/dev/snd # ls
controlC0
controlC1
pcmC0D0c
pcmC0D0p
pcmC0D1p
pcmC1D0c
timer
there are two capture streams, how to select which streams should be used as source of sound recoreder?