Re: [haskell-art] Haskell audio I/O packages
hi john, John Lato wrote: Using unsafeFreezeIOCArray and my stream implementation provides the fastest version yet, with an average of about 1.9s per run. This is in the hsndfile.hs test code as function test1. For the record, the stream implementation and fold I'm using are copied from Data.ByteString.Lazy. I changed the types to suit this code, but that's the source. thanks for posting the code. i'm not very convinced of lazy IO, but i'd be very interested in incorporating an iteratee based approach into hsndfile. i'm currently finalizing various api changes and extensions (mostly to do with abstracting both mutable and immutable buffers) and when i'm done i'll have a look at what you did in hsoundfile-3. obviously oleg's iteratee code is not hackaged yet, and i couldn't find it anywhere else, do you have any pointers? thanks, sk ___ haskell-art mailing list haskell-art@lurk.org http://lists.lurk.org/mailman/listinfo/haskell-art
Re: [haskell-art] Haskell audio I/O packages
On Tue, 9 Dec 2008, stefan kersten wrote: thanks for posting the code. i'm not very convinced of lazy IO, but i'd be very interested in incorporating an iteratee based approach into hsndfile. What are the reasons, you do not like lazy IO? Yes, currently it's a hack using unsafeInterleaveIO. But I hope someday one can hide this safely in a nice monad. But in general I find lazy stream processing a very elegant way of programming. Why else should we use Haskell and not, say OCaml? ___ haskell-art mailing list haskell-art@lurk.org http://lists.lurk.org/mailman/listinfo/haskell-art
Re: [haskell-art] Haskell audio I/O packages
On Tue, Dec 9, 2008 at 4:45 PM, stefan kersten [EMAIL PROTECTED] wrote: hi john, John Lato wrote: Using unsafeFreezeIOCArray and my stream implementation provides the fastest version yet, with an average of about 1.9s per run. This is in the hsndfile.hs test code as function test1. For the record, the stream implementation and fold I'm using are copied from Data.ByteString.Lazy. I changed the types to suit this code, but that's the source. thanks for posting the code. i'm not very convinced of lazy IO, but i'd be very interested in incorporating an iteratee based approach into hsndfile. i'm currently finalizing various api changes and extensions (mostly to do with abstracting both mutable and immutable buffers) and when i'm done i'll have a look at what you did in hsoundfile-3. obviously oleg's iteratee code is not hackaged yet, and i couldn't find it anywhere else, do you have any pointers? thanks, sk Hi Stefan, It's available at http://okmij.org/ftp/Haskell/Iteratee/ His DEFUN slides and notes, found at http://okmij.org/ftp/Streams.html#iteratee, are also helpful. I think it's pretty obvious how to apply this to hsndfile. However, I just noticed that Oleg has posted a TIFF library using an Iteratee approach. It supports seeking/random access and various other things that directly apply to the matter at hand. Looks like I'll have to do some studying again... http://okmij.org/ftp/Streams.html#random-bin-IO ___ haskell-art mailing list haskell-art@lurk.org http://lists.lurk.org/mailman/listinfo/haskell-art
