OMAP35xEVM Sound Recorder on Android SO

I forgot to tell: I'm Using OMAP35xEVM, Android is booted from mmc

Please let me know,if you have any solution to work sound recorder to capture voice properly in froro android

What is the issue you are facing during  sound capture?

The TI Android DevKit for omap3evm currently supports only line-in input for sound capture. Mic-input is not supported.

Line-in recording on omap3evm is verified using the Sound Recorder app in Android.

Question:

Whether omp3evm will support Mic-input or not?

I got clarity from your mail.It is working with Sound Recorder Application in Android as Line-in Only.

Thank you very much

Alex

alexander reddy

Question:

Whether omp3evm will support Mic-input or not?

The information I have is that, the jack for Audio-in is connected to the AUX input of the Audio codec, so it is not possible to use Mic on this input port.

However someone else more conversant with the evm may be able to provide a better explanation.

I was able to record audio through audio input port by using an MP3 player, or conecting it to the PC audio output, but didn't work with a Mic.

Sandra

HI Sandra

I am working on DM3730 EVM board, want to enable Microphone.

TPS64950 pins MIC.MAIN.P (E2) and MIC.MAIN.M (F2) are connected to Microphone.

As given below :



I followed the link :

http://e2e.ti.com/support/microcontrollers/stellaris_arm_cortex-m3_microcontroller/f/471/p/addpost.aspx

and using the following command :

amixer cset name='HeadsetR Mixer AudioR2' off
amixer set HandsfreeL on
amixer set HandsfreeR on
amixer set 'HandsfreeL Mux' AudioL2
amixer set 'HandsfreeR Mux' AudioR2

to enable the speaker,it is working fine.

For enable Microphone using the following commands :

amixer set 'Analog Left AUXL' nocap
amixer set 'Analog Right AUXR' nocap
amixer set 'Analog Left Main Mic' nocap
amixer set 'Analog Left Headset Mic' cap

and capturing data to arecord command arecord -vv file.wav and using aplay -vv file.wavto playback,it is playing back only noise data.

I also checked with 1/8 male to male connector to audio out of pc and audio in of DM3730 evm, it is capturing properly and playing back fine.

Please suggest whether we need to change any settings or handle the code in kernel.

thanks

Vidya.

Hello,

I am facing similar issue. I have customized board with OMAP3530 interfaced with TPS65930.  I have checked modifying MICBIAS_CTL, ANAMICL and ANAMICR registers. However, there is no sound capture.

Any help in this regard would be helpful.

Thanks and regards,

Chaitral Purkar