RE: Testing SBC filtering functions

Marcel Holtmann
2008-12-29T12:41:00Z

Hi Christian,

> > I really prefer if we have an open source solution available to
> > everybody for the SBC conformance testing. If sbctester.c is not good
> > enough than we have to write one.
>
> Sbctester.c is perfect for the decoder. For the encoder, we might also take
> it or write something better to replace PEAQ.

I am all for that since we need to be able to pass SBC conformance with
pure open source tools. Otherwise it becomes painful for some people.

> BTW; then I will have spent 6000 EUR on buying one PEAQ license in vain ;-)

I know multiple better ways of spending that money ;)

> > I also don't mind using the reference
> > encoder/decoder and the reference files. Using wine is not optimal, but
> > I don't really mind it.
>
> Fine. But can it be added to the repository? Or shall a description be given
> on how to download it from the Bluetooth SIG web page.

No we can't add it. I would have to write something up on how to
download it and how testing is suppose to work.

> > Another question that I have is how you use the sbc_enc_test_01.wav and
> > sbc_enc_test_02.wav files with Windows reference encoder? It turns into
> > a busy loop for me.
>
> Which file do are you referring too? I usually compress the original.wav
> file (on the top of the second table). Which line options do you use for the
> encoder?

The official files from the Bluetooth SIG and I don't know which options
would make them encode correctly. Just calling the reference encoder
with the filename makes it run into a busy loop. With wine and natively
running on Windows XP.

Regards

Marcel