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EVM Mistral Rev G Audio Problem

haysam
Prodigy 210 points
Other Parts Discussed in Thread: AM3715

I have an eval board EVM3715. While the Audio Playback is working the Audio Recording (using the arecord command in linux) is not.

I've followed the userguide Audio driver PSP 03.00.00.05 but no luck. I've tried all the obvious things (like new mic, etc).

Any ideas as what could be the issue? Anyone has similar problem?

  • 0
    Prodigy 90 points

    Hi

    I also have similar problem. Am using AM3715 kit, 'Audio IN' is not working in my kit .When i use sound recorder am getting some noise but am not getting actual recorded speech.

    On this AM37kit am using Android gingerbread.

     

    Did you find any solution for your problem?

    If u find any solution please help me...

    Thanks in Advance

     

    chandu...:)

  • 0 in reply to chandrashekar palle
    TI__Genius 10210 points

    chandrashekar palle said:

    Hi

    I also have similar problem. Am using AM3715 kit, 'Audio IN' is not working in my kit .When i use sound recorder am getting some noise but am not getting actual recorded speech.

    On this AM37kit am using Android gingerbread.

    Chandrashekar,

    Which revision of Am3715 evm are you using? Audio Capture and Playback is  tested and working to be working in the TI Android 2.3 Gingerbread 1.0 release on the AM/DM37xRevG evm.

  • 0 in reply to Vishveshwar Bhat
    Prodigy 90 points

    HI Vishveshwar

    Am using  AM3715 from mistral solutions.

    Android version: 2.3 Gingerbread 1.0

    I dont know which revision am using..How to find which revision am using?

     

    Today I connected laptop audio-out port to EVM kit Audio-In port. I played some music in laptop and able to record that in EVM kit by using this setup. But when am connecting microphone to EVM Audio-In port am unable record speech.

    Do you have any idea about this problem??

     

    Thanks and Regards

    Chandrashekar

  • 0 in reply to chandrashekar palle
    TI__Genius 10210 points

    chandrashekar palle said:

    Today I connected laptop audio-out port to EVM kit Audio-In port. I played some music in laptop and able to record that in EVM kit by using this setup. But when am connecting microphone to EVM Audio-In port am unable record speech.

    Do you have any idea about this problem??

    It appears that the evm supports only Line-in (Amplified audio signal) and not Mic-in. We will check and get back to you.