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Sound data structures

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(Reading and writing sound files: libsox)
(MIDI-based: alsa-seq only MIDI data)
 
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|-
 
|-
 
| [[Synthesizer|synthesizer]]
 
| [[Synthesizer|synthesizer]]
| <hask>[a]</hask>, [[Storable Vector|StorableVector.Lazy a]], <hask>(StateT s Maybe a, s)</hask> (like [http://hackage.haskell.org/cgi-bin/hackage-scripts/package/stream-fusion stream-fusion])
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| <hask>[a]</hask>, [[Storable Vector|StorableVector.Lazy a]], <hask>(StateT s Maybe a, s)</hask> (like {{HackagePackage|id=stream-fusion}})
 
|-
 
|-
 
| [[JACK|jack]]
 
| [[JACK|jack]]
| Operates via mapping functions<br /><hask>mainMono :: (CFloat -> IO CFloat) -> IO ()</hask><br /><hask>mainStereo :: ((CFloat, CFloat) -> IO (CFloat, CFloat)) -> IO ()</hask>
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| Operates via mapping functions<br /><hask>mainMono :: (CFloat -> IO CFloat) -> IO ()</hask><br /><hask>mainStereo :: ((CFloat, CFloat) -> IO (CFloat, CFloat)) -> IO ()</hask>, <br /><hask>StorableArray</hask>
  +
|-
  +
| [[ALSA|alsa-pcm]]
  +
| <hask>(SampleFrame a) => Ptr a</hask>
 
|-
 
|-
 
| [[Hommage]]
 
| [[Hommage]]
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| Uses midi library
 
| Uses midi library
 
|-
 
|-
| [[ALSA|alsa]]
+
| [[ALSA|alsa-seq]]
| Custom midi and audio signal structures
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| Custom midi structures
 
|-
 
|-
 
| YampaSynth
 
| YampaSynth

Latest revision as of 17:29, 30 April 2012

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

Contents

[edit] 1 In-memory data formats

In-memory sound formats are fairly diverse.

[edit] 1.1 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]]
Sox Lists, Storable Vector, whatever you have a
hPut
and
hGetContents
function for.
libsox Storable Vector

[edit] 1.2 Playing sounds

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

[edit] 1.3 Sound processing libraries

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

mainStereo :: ((CFloat, CFloat) -> IO (CFloat, CFloat)) -> IO ()
,
StorableArray
alsa-pcm
(SampleFrame a) => Ptr a
Hommage
[a]

[edit] 1.4 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-seq Custom midi structures
YampaSynth Stand-alone program

[edit] 1.5 Special-purpose APIs only (FFIs, etc.)

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

[edit] 1.6 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