[Haskell-cafe] Haskell audio libraries & audio formats

[Henning Thielemann]

On Sun, 24 Aug 2008, John Van Enk wrote:

> Eric,
>
> I was hoping to use a packed format like ByteString eventually. Right now, I
> want to get everything working nicely. As it stands, I end up marshaling a
> lot of information into/out of arrays which I'd much rather keep as a block
> of memory.
>
> I'm guessing that some sort of unboxed array would be close to what I want.
> If you have suggestions, I'm more than open to them. (This is my first
> attempt at writing a library.)

In recent versions of StorableVector (not at hackage yet, only in darcs 
repository) there is a chunky lazy variant. However there are also the 
uvector and vector packages, and no-one seems to know, on which one we 
should focus.

Let me elaborate on my point, that there is not one data structre which 
fits all needs: The great thing about Haskell's laziness is that you can 
implement feedback easily. But this does not work with chunky lazy 
sequences (StorableVector.Lazy) and causes quadratic computation time with 
my State.Signal representation. It works only with element-wise lazy 
structures, aka lists. I have an idea for a more efficient data structure 
for that problem, but I'm uncertain if it is really more efficient in the 
end.