You could use HSoundFile, but I wouldn't recommend it for this specific case. I'm not extremely familiar with the Haskell OpenAL bindings, but IIRC they take buffers (pointers). Since HSoundFile marshals data to [Double], you'd then have to convert it back to CWord16 array. Seems wasteful and slow to me. Here are 3 possible approaches: 1. Look through HSoundFile (or similar) to learn how they work and write your own code. 2. Look at the Codecs or Wave packages, which might be coerced into doing what you want (there is also hsndfile, a binding to libsndfile, however I think that normalizes data like HSoundFile does, although you could likely avoid the marshaling problem. 3. I have a revised HSoundFile, which I think could be much more suitable for this sort of work. If you'd like the code for that, let me know and I'd be happy to pass it along. I'm hoping to do a release next week, but there's a lot of tidying to be done in the current state. How many people care about reading/writing audio files? I've been re-working the HSoundFile API, experimenting with different designs, comparing packages, etc., and I could do a write-up if anyone is interested. John Lato

Message: 19 Date: Fri, 14 Nov 2008 08:11:59 +0100 From: Marc Weber Subject: Re: [Haskell-cafe] openal & alut troubles To: haskell-cafe@haskell.org Message-ID: <20081114071159.GB18112@gmx.de> Content-Type: text/plain; charset=utf-8

On Fri, Nov 14, 2008 at 02:33:05AM +0000, Stephen wrote:

...

ah, damn I feel stupid. I hadn't it installed. I just tried to, and, after verifying with the internet, it seems that ALUT isn't supported on macs anymore anyway. Which leads me to the following question: does anyone have any example code for saving/loading wav files, say, using openal (minus alut) with haskell? I'm not too sure how to go about doing it myself (though the people on this thread [1]http://groups.google.com/group/fa.haskell/browse_thread/thread/33b57c945274e... seem to indicate that it would be a relatively easy task).

Wave files are realitively easy to write .. However you can also try the encoder from hackage (catergory sound) called HSoundFile.. (I've never used it before) Also using the haskell wiki search from haskell.org reveals: http://haskell.org/haskellwiki/Sound_data_structures

good luck

Marc