Re: FW: REALLY Bad encoding performance of Linux SBC audio codec

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Hi Christian,

>> It would be ideal to have automated tests for codec quality that  
>> don't
>> require windows and that we could run before commits to track our
>> progress.
>
> Wine will be needed for the reference implementation, which is only
> available for Windows.

with the exception that the reference encoder will run into a busy  
loop for the first two test samples of the encoding conformance testing.

>> We could prepare some encoding/decoding samples with the
>> reference codec and store them in the project or somewhere online.  
>> The
>> one test we couldn't do this way is to encode with our codec and
>> decode with the reference.
>
>> Are there free tools for checking the quality and for comparing
>> signal/noise and overall volume? If you can detail the process you  
>> use
>> that would help.
>
> Currently, I use PEAQ, which is quite expensive (6000 EUR). It  
> provides you
> will a couple of parameters regarding the audio quality. I am not  
> aware of a
> good open source implementation of PEAQ.

Please look at our sbctester tool. It should do the right thing.

Regards

Marcel


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