Evan Laforge writes:
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.)
Oh, that's easy. I wrote an FFI interface to portaudio a while back
to write a delay-looping type utility in haskell. It was pretty
trivial. You could do the same for libsndfile or whatever.
The only thing I'm uncertain about is whether it would have good
enough time and space performance. All the real work is writing yet
another set of basic envelope, oscillator, and fft primitives. You
*should* be able to go all the way down to the samples in pure haskell
though, which would be more elegant than those other languages :)
==
Well, if you want to see what you can do with a lazy functional language,
not necessarily Haskell, but Clean (sorry for advertizing a competitor
on this list...), perhaps have a look on my PADL paper
http://users.info.unicaen.fr/~karczma/arpap/cleasyn.pdf
I generated .wav files as output, from lazy streams, so the sound was
off-line.
My ambition was to code in a very, very compact way some musical
instruments, with looping replaced by co-recursion. It cannot be extremely
efficient, but it seems quite elegant and powerful.
Jerzy Karczmarczuk
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