Re: [Bluez-devel] FW: REALLY Bad encoding performance of Linux SBC audio codec

["Christian Hoene" <hoene@uni-tuebingen.de>]

Hello Brad,

> 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.

> 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.

Christian


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