Difference between revisions of "Sound data structures"

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(In-memory sound formats)
 
(synthesizer library)
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| dsp
 
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| <hask>Array a, [a]</hask>
 
| <hask>Array a, [a]</hask>
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|-
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| [[Synthesizer]]
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| <hask>[a], StorableVector.Lazy a, (StateT s Maybe a, s)</hask>
 
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| jack
 
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| alsa-midi
 
| alsa-midi
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| Uses midi library
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| [[Haskore]]
 
| Uses midi library
 
| Uses midi library
 
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| hCsound
 
| hCsound
 
| <hask>CsoundPtr</hask>
 
| <hask>CsoundPtr</hask>
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| HasSound / [[Haskore]]
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| <hask>OrcExp</hask>
 
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| hsc3
 
| hsc3

Revision as of 07:09, 29 August 2008

At the request of Don Stuart, here is some information about the formats supported by different sound libraries.

In-memory data formats

In-memory sound formats are fairly diverse.

Reading and writing sound files

Library Sound file format
HCodecs (Audible a) => DiffUArray Int a
hsndfile MArray with Float and Double
HSoundFile [[Double]]
ALUT OpenAL.AL.Buffer
WAVE [[Int32]]

Playing sounds

Library Sound file format
OpenAL Ptr UInt8, Ptr Int16, 1-N channels
SDL-mixer ForeignPtr ChunkStruct, ForeignPtr MusicStruct

Sound processing libraries

Library Sound file format
dsp Array a, [a]
Synthesizer [a], StorableVector.Lazy a, (StateT s Maybe a, s)
jack Operates via mapping functions
mainMono :: (CFloat -> IO CFloat) -> IO ()
mainStereo :: ((CFloat, CFloat) -> IO (CFloat, CFloat)) -> IO ()

MIDI-based

Library Sound file format
HCodecs Reads and writes MIDI files
midi Reads and writes MIDI files
alsa-midi Uses midi library
Haskore Uses midi library
YampaSynth Stand-alone program

Special-purpose APIs only (FFIs, etc.)

Library Sound file format
hCsound CsoundPtr
HasSound / Haskore OrcExp
hsc3 UGen

No public sound-buffer API

Library Sound file format
hbeat The relevant source files are missing!
hogg Very low-level API for Ogg internals only
libmpd No sound buffer API
sonic-visualizer No sound buffer API
truelevel Stand-alone program (uses WAVE)
wavconvert Stand-alone program