[linux-audio-user] arecord question

hansfong at zonnet.nl hansfong at zonnet.nl
Tue Jun 29 15:30:35 EDT 2004


Citeren Florian Schmidt <mista.tapas at gmx.net>:

> On Mon, 28 Jun 2004 21:23:05 +0200
> Hans <hansfong at zonnet.nl> wrote:
> 
> > The problem is that is doesn't work for me. It will write a 44 byte file
> 
> > called file.wav and exit before you even say "a". I 'have' to use the -d
> 
> > switch, which I think is a waste.
> 
> weird. what version of arecord? 
> 

version 1.0.4

> > 
> > The problem also is that I can't use oss-emulation to record. /dev/dsp 
> > is good for signals out, but not signals in. That means legacy programs 
> > like wavtools, sound-recorder of rawrec can't be used. 
> 
> Hmm, i can use audacity fine for recording [another oss app].. i can also
> record with sox.. it sounds to me as if you have a hw problem.. what driver
> module are you using? 
> 

emu10k1. I checked the aliases and they are correct. /dev/dsp is linked to
/dev/dsp0, so why can Audacity play sounds, but not record? I'll dig further
this weekend.

> > I don't know how 
> > I can check the mapping from alsa devices to oss devices, because I 
> > suspect that there must be something wrong there, but then again I'm 
> > guessing as I am by no means an expert on these matters. 
> 
> http://alsa-project.org/~iwai/OSS-Emulation.html
> http://alsa.opensrc.org/index.php?page=OssEmulation
> 

I'll check those pages. Thank you for this.

> > Apart from 
> > arecord I don't know of any other cli program that can record sound from
> 
> > alsa devices.
> 
> hmmm, well there isn't one because usually it does everything one needs :)
> 
> > 
> > To be honest. I think alsa sucks on this point. When I want to record 
> > via line-in I use my old Pentium 200 with SB AWE64 and the oss/free 
> > drivers. Works like a charm, never needs special switches or pointers to
> 
> > devices. I know the statement that alse sucks is very subjective and 
> > totally biased, but until now I haven't been able to record anything 
> > decent on my new system (Athlon 2500+ with Audigy1) with alsa drivers. 
> > Midi and sequencing works like charm, so I am happy with that, but I 
> > need a problem free way to record. Audacity does only /dev/dsp 
> > recording, ReZound can record but is too unstable, so what else is 
> > there? I want a KISS solution. Any hints?
> 
> if arecord doesn't work for you then either your hardware or the version of
> arecord you use is faulty.. actually plughw:0,0 is afaik the default device
> so
> 
> arecord -f cd file.wav
> 
> should usually work like a breeze..
> 

The shortest that works for me is arecord -d 1 test.wav :-)

Cheers and thanks.

Hans

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