Re: [Alsa-user] (arecord 24 bit (was RE: Alsa-user digest, Vol 1 #1389 - 17 msgs)

[Erik de C. L. <eri...@me...>]

On Sat, 6 Sep 2003 01:20:09 -0700
"Jamie Lutch" <jl...@al...> wrote:

> ok, so I was able to get it to work but was wondering why the help docs
> list S24_LE as a valid format, but when I try to use it, I get:
> 
> arecord: set_params:809: Sample format not available 
> 
> it seems to work fine with s32_le, though. this follows what erik said:
> 
> >I don't think arecord can handle 24 bit WAV files. You might try S32_LE and
> >then converting to 24 bits externally is SoX or sndfile-convert which is
> >one of the example programs which comes with libsndfile.
> 
> >The other possibility is that I could post some code which uses libsndfile
> >to write to a 24 bit WAV file. What platform are you on?
> 
> SuSE 8.2
> 
> also, is this program robust enough to use, or is it more of a 'test'
> program. What is recommended for simple audio capture?

You might have seen Jaroslav's suggestion to use the format S24_3LE

> also, It shows the card as supporting 192K, but wont let me record at that
> rate:
> 
> linux:~ # amixer -c PDAudioCF cget iface=PCM,name='IEC958 External Rate'
> numid=5,iface=PCM,name='IEC958 External Rate'
>   ; type=INTEGER,access=r----,values=1,min=0,max=192000,step=0
>   : values=192000
> 
> when I try to record, I get:
> 
> arecord: main:418: bad speed value 192000

I believe that the current version of PDAudioCF only goes to 96k.

Erik
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  Erik de Castro Lopo  no...@me... (Yes it's valid)
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