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Re: sound() in Octave

From: Sergei Steshenko
Subject: Re: sound() in Octave
Date: Wed, 28 Nov 2012 18:02:06 -0800 (PST)

----- Original Message -----
> From: Jordi Gutiérrez Hermoso <address@hidden>
> To: Francesco Potortì <address@hidden>
> Cc: address@hidden
> Sent: Wednesday, November 28, 2012 11:59 PM
> Subject: Re: sound() in Octave
> On 28 November 2012 16:55, Jordi Gutiérrez Hermoso <address@hidden> 
> wrote:
>>  On 28 November 2012 16:51, Francesco Potortì <address@hidden> 
> wrote:
>>>> Sound in Octave does not work unless you have an old Linux
>>>> installation that allows you to directly write to /dev/dsp. It may 
> be
>>>> easier to use wavwrite to save your sound files and play them with 
> an
>>>> external program.
>>>  I see this on my system:
>>>  $ ls -l /dev/dsp
>>>  crw-rw---T+ 1 root audio 14, 3 Sep 26 16:16 /dev/dsp
>>  Yeah, but /dev/dsp doesn't even exist unless you're using OSS or 
> have
>>  some compatibility enabled for it.
> Oh, not to mention, you also have to make sure nothing else is using
> /dev/dsp, e.g. no desktop system or alternative audio system. All in
> all, the current Octave method for playing sound requires the planets
> to be perfectly aligned up to 8 significant figures and we really need
> something far more portable. Compatibility layers such as portaudio or
> SDL seem like the possible options.
> - Jordi G. H.
> _______________________________________________
> Help-octave mailing list
> address@hidden

Or writing scripts that call, for example, 'sox' (, and 'sox' exists 
for all major OSes.

I am using 'sox' for capture and 'aplay' for playback for that matter, but I'm 
on Linux. I can replace 'aplay' with 'sox' if I want.


Just making a _data_ interface to audio subsystem isn't all - from time to time 
underruns/overruns happen, and they have to be taken care of.


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