adau1401 for Echo Cancelling

Hi,

I need to design an echo cancelling circuit for a speakerphone system. I would appreciate if someone can tell me if the ADAU1401 is appropriate for such application. Is the sigma DSP inside this CODEC powerful enough for echo cancelling.

Best regards

Patricio

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  • Hello Patricio,

    Thank you for the detail. It helps a lot.

    The ADAU1761 will do what you are looking for. The 1701 will not.

    The ADAU1442 and ADAU1452 family of parts will also do what you need should you require more processing for your application.

    We have two noise reduction cells, one is blind and is probably not what you need but we do have the NLMS Filter in the library that is for this exact application.

    There is some documentation on EngineerZone but there still needs to be a good example that is on my list of things to do. So I will try to put something more together for you.

    Also, I will delete the other post you posted that is the same question as this post.

    Thanks,

    Dave T

Reply
  • Hello Patricio,

    Thank you for the detail. It helps a lot.

    The ADAU1761 will do what you are looking for. The 1701 will not.

    The ADAU1442 and ADAU1452 family of parts will also do what you need should you require more processing for your application.

    We have two noise reduction cells, one is blind and is probably not what you need but we do have the NLMS Filter in the library that is for this exact application.

    There is some documentation on EngineerZone but there still needs to be a good example that is on my list of things to do. So I will try to put something more together for you.

    Also, I will delete the other post you posted that is the same question as this post.

    Thanks,

    Dave T

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