[Haskell-cafe] Audio output (Was: Re: Ideas)

[Henning Thielemann]

On Sat, 25 Aug 2007, Andrew Coppin wrote:

> Evan Laforge wrote:
>> To get this back to haskell, at the time I wondered if a more natural
>> implementation might be possible in haskell, seeing as it was more
>> naturally lazy.  Not sure how to implement the behaviours though
>> (which were simply macros around a let of *dynamic-something*).  I'm
>> sure people have done plenty of signal processing, and there's always
>> haskore... but what about a sound generation language like csound or
>> clm or nyquist?  It could fit in nicely below haskore.
>
> Indeed, you can write certain DSP algorithms beautifully in Haskell. Now, if 
> only it could talk to the audio hardware... (Or just use common file formats 
> even.)

I invoke a variety of sound converters/players (sox, alsaplayer, ecasound) 
in order to fix this problem. Writing and playing this way is easy. 
Reading files is problematic because the converters cannot output header 
information.
  'http://darcs.haskell.org/synthesizer/src/Sox/File.hs'
  'http://darcs.haskell.org/synthesizer/src/Sox/Play.hs'
  'http://darcs.haskell.org/dafx/src/Presentation.hs'