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Re: [Gap-dev-discuss] Cynthiune - ALSA backend

From: Philippe Roussel
Subject: Re: [Gap-dev-discuss] Cynthiune - ALSA backend
Date: Tue, 29 May 2012 06:59:27 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

Hi Riccardo,

Your patch looks fine to me, you should commit it.
I will test it tonight and report back.


Le 28/05/2012 21:46, Riccardo Mottola a écrit :
> Hi,
> I investigated and I found out two possible reasons why the ALSA backend
> plays badly on my iBook.
> 1) Looking around on the net I found that apparently some hardwares do
> not accept all rates! This explains perhaps why I have troubles with
> 11KHz and 22Khz files
> 2) we disregard 8bit files and always set 16bit. this can't be good,
> apparently it works on some backends and/or some hardware. Ideally we
> should extend our backend bundles to support that kind of information
> too (hopefully we can get it out of the libraries and file formats!)
> I attach a patch to partially work around the problem. ALSA supports
> soft resampling (we set it already and it should have been enough, I
> thing that some kernels are buggy on certain hardware). At least we
> don't fail miserably.
> I also attach an 8bit file 11Khz.
> Riccardo

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