TI Audio and Video Example

Annie Zhang

Other Parts Discussed in Thread: DM3730

Hi,

I was able to run aplay to playback a wave file. But I can not use TI audio and video example came with the PSP package:

I got "read from audio interface failed -input/output" error when I run minimum_capture and sometimes, I got "write to audio interface failed (Broken pipe)". Any suggestions?

Thanks.

over 14 years ago

0 Jeff Hayes over 14 years ago

TI__Expert 6850 points

Annie,

What device are you using? What software are you running? Are you using a DVSDK from TI? What is your hardware platform?

0 Annie Zhang over 14 years ago in reply to Jeff Hayes

Intellectual 460 points

I am using OMAP35x EVM, and I am using the example files came with TI OMAP35x-PSP_SDK-02.01.03.11, no DVSDK yet, just simple Audio driver use.

thanks.

annie

0 Annie Zhang over 14 years ago in reply to Annie Zhang

Intellectual 460 points

I got the following error when I was using arecord as follows:

# arecord -f cd mysound.wav
Recording WAVE 'mysound.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
arecord: pcm_read:1692: read error: Input/output error

I checked the internet, this error indicating the MIC is not registered with Linux. I checked my /dev/snd and /proc/asound folder, the capture directory are there. (/dev/snd/pcmC0D0C and /proc/asound/card0/pcm0c).

Any suggestion on how to debug this? Thanks.

Annie

0 JasonD3 over 13 years ago in reply to Annie Zhang

Intellectual 750 points

Hello,

I have this same issue on a very similar platform (DM3730 EVM). Did this question ever get resolved?

Thanks,

Jason

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TI Audio and Video Example