Re: Digital bit perfect ouptut with ALSA

[Paulo Moura Guedes <moura@xxxxxxxxxxxxx>]

On Thursday 11 December 2008 07:35:25 Clemens Ladisch wrote:
> Paulo Moura Guedes wrote:
> > - does Linux/ALSA features dynamic sample rates?
>
> The default device (named "default") uses automatic resampling, but the
> "spdif" device does not.

So, I have to manually set the sample-rate, depending on the files I will play?

> > - is it possible to set the bit-depth? (in my case to 24 bit)
>
> Yes, if the hardware supports it.

It's a Benchmark DAC1 which supports 24 bit. Where can I set it?

> > - what other variables do i have to consider in order to get bit
> > transparent ouput, i.e., no resampling at all?
>
> Just using the "spdif" device should work. (Nowadays, there is no
> device that would want to forgo the ability to output AC-3/DTS data.)

I guess I should also consider things like keep the volume at 100% and use the same sample-rate as the file being played.

Thanks,
Paulo

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