Difference between revisions of "Sound data structures"

From HaskellWiki
Jump to: navigation, search
(alsa by Iavor Diatchki)
Line 77: Line 77:
 
| [[Haskore]]
 
| [[Haskore]]
 
| Uses midi library
 
| Uses midi library
  +
|-
  +
| [[ALSA|alsa]]
  +
| Custom midi and audio signal structures
 
|-
 
|-
 
| YampaSynth
 
| YampaSynth

Revision as of 21:08, 24 April 2009

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
alsa Custom midi and audio signal structures
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