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Raspberry Pi Forum AEC / DSP code on Wolfson audio card for Pi
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AEC / DSP code on Wolfson audio card for Pi

Former Member
Former Member over 11 years ago

I have successfully compiled the Kernel and have the Wolfson audio card for Pi up and running. Took some time but I am quite happy with the audio quality.

 

Now, I would like to use the WM5102 with acoustic echo cancellation. According to the data sheet this can be enabled. Page 156, in the WM5102 documentation says:

"The WM5102 incorporates loopback signal path, which is ideally suited as a reference for Acoustic Echo Cancellation (AEC) processing. Any of the output signal paths may be selected as the AEC loopback source. When configured with suitable DSP firmware, the WM5102 can provide an integrated AEC capability."

 

My question is, does anyone know where "suitable DSP firmware" can be found and where/how it is possible to write code for the DSP?

 

I assume page 108 in the data sheet is a hint on that this must be licensed separately , it says:

"Note that the WISCETM evaluation board control software provides support for easy loading of Program, Coefficient and Data content onto the WM5102. Please contact your local Wolfson representative for more details of the WISCETM evaluation board control software."

 

Best Regards,

Joacim

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  • Former Member
    0 Former Member over 11 years ago

    Hi,

     

    At the current time, the toolkit to develop code for the DSP is very expensive and requires various legal agreements to be in place.

    We (Wolfson) are actively looking at ways to try and reduce this cost and to make the DSP more accessible to individuals.

    I'm afraid that's the only info I have at the moment.

     

    Regards,

     

    Scott

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  • Former Member
    0 Former Member over 9 years ago in reply to Former Member

    Are there any new informations about this problem now?

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  • Former Member
    0 Former Member over 9 years ago in reply to Former Member

    Are there any new informations about this problem now?

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