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The problem about AER

carmili
Prodigy 65 points

     I use AER_16_1_0_3 software to remover acoustic echo.CPu is C6748.But I meet some trouble with it.

     When I disable AER,the speaker can play the voice from the far end and the microphone can pick up the voice and sent to the far end.But when I enable AER,the speaker can play the voice and the far end voice is very serious attenuation.The AER is running in hand free mode.In my code ,the bitfield_0 is 0x188f,the bitfield_1 is 0x01ce.

    How can I do to save the problem.Thanks a lot.

  • 0
    TI__Mastermind 20790 points

    Carmili,

    Acoustic Echo Remover(AER):
    It is generated by the coupling between the speaker and the microphone of the same device or system.

    Right now I do not have the AER software package for look into code. I can suggest you can try with the pre-build image.
    Operating mode:
    When operating in hands-free configuration, the AER component modules provide for adequate loudness with
    minimal echo occurrences and maximum full duplex performance.

    Load and test the pre-built executables are available at
    <installation_root>\packages\ti\mas\aer\test\
    C64x+/C674x little endian COFF: lnkr\c64Ple\aertest_c64Ple.x64P
    C64x+/C674x little endian ELF: lnkr\ce64Ple\aertest_ce64Ple.xe64P

  • 0 in reply to Pubesh
    Prodigy 65 points

    Thank you for your reply.

    The pre-built executables can not to be used in my system,thank you all the same.

    Does someone who have used the AER can help me?

  • 0 in reply to carmili
    Intellectual 365 points

    Hi Carmili,

    This is charan, even I have started working on AER  17_0_0_0 Hard float. And I am using it with a standard SIP client. The target board I am working on is sitara AM335x. The AER Demo (prebuilt binaries) has worked fine but when I integrate aer with my sip client it started misbehaving.

    Misbehaviour 1: The sound Quality is not good

    Misbehaviour 2: If I mute the far end then I can transmit the near-end data

    Hope you have faced the second misbehaviour; would like to know how did you fixed it, if so please let me know

    Regards,

    G.Shricharan

  • 0 in reply to charan62
    TI__Mastermind 20790 points

    Shricharan,

    Please post a new thread in the Sitara Processors Forum for help from the experts on the same.
    http://e2e.ti.com/support/arm/sitara_arm/f/791.aspx