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+{- | +Play incoming MIDI messages from ALSA as sounds via SuperCollider +with one instrument. +-} +-- module Sound.SC3.MIDI.Keyboard where +module Main where + +-- import Sound.OpenSoundControl +import Sound.SC3 as SC3 hiding (pitch) + +import qualified Sound.OpenSoundControl.Transport.Monad as Trans +import qualified Sound.SC3.Server.PlayEasy as SCPlay +import Sound.OpenSoundControl.Transport.Monad + (Transport, send, ) + +import qualified Sound.ALSA.Sequencer as AlsaMidi +import qualified Sound.MIDI.Message.Channel as ChannelMsg +import qualified Sound.MIDI.Message.Channel.Voice as VoiceMsg + +import Data.Array (Array, array, listArray, (!), ) +import Data.Map (Map) + +import qualified Data.Array as Array +import qualified Data.Map as Map + +import Control.Monad.State (StateT, evalStateT, lift, ) + +import System.Random (randomRs, mkStdGen, ) + +import qualified Data.Accessor.Container as AccCntn +import qualified Data.Accessor.MonadState as AccState +import qualified Data.Accessor.Basic as Accessor +import Data.Accessor.Basic ((.>)) + +import Data.List (lookup, genericLength, ) +import Data.Maybe (mapMaybe, fromMaybe, ) + + +frequency :: UGen +frequency = + 440 * + 2 ** ((Control KR "Pitch" 0 + Control KR "PitchBend" 0 * 2 + 3 - 72) / 12) * + (1 + (Control KR "Modulation" 0 + Control KR "Aftertouch" 0) * sinOsc KR 10 0) + +soundPing :: UGen +soundPing = + sinOsc AR (2*frequency) 0 * + xLine KR 1 0.1 1 PauseSynth * + 0.25 * 4 ** Control KR "Velocity" 0 + +programPing :: ProgramSound +programPing = ProgramSound "Ping" soundPing 2 + +-- | normalize a list of numbers, such that they have a specific average +normalizeLevel :: Fractional a => a -> [a] -> [a] +normalizeLevel newAvrg xs = + let avrg = sum xs / genericLength xs + in map ((newAvrg-avrg)+) xs + +soundString :: UGen +soundString = + let n = 5 + volume = 0.25 * 4 ** Control KR "Velocity" 0 / sqrt (fromIntegral n) + detunes = + normalizeLevel 1 $ take (2*n) $ + randomRs (0,0.03) $ mkStdGen 912 + phases = + randomRs (0,2) $ mkStdGen 54 + tones = + zipWith + (\detune phase -> lfSaw AR (frequency*detune) phase) + detunes phases + (tonesLeft,tonesRight) = splitAt n tones + in volume * MCE [sum tonesLeft, sum tonesRight] + +programString :: ProgramSound +programString = ProgramSound "String" soundString 4 + + +data ProgramSound = + ProgramSound { + programName :: String, + programUGen :: UGen, + programBuffer :: Int + } + + +programSounds :: Array VoiceMsg.Program ProgramSound +programSounds = + let ps = + zip [VoiceMsg.toProgram 0 .. ] $ + programPing : programString : [] + in array (fst $ head ps, fst $ last ps) ps + + +controlChange :: + ChannelMsg.Channel -> + String -> (Double -> Double) -> Int -> + StateT MIDIState IO () +controlChange chan ctrlName f value = + let cValue = f (fromIntegral value / 127) + in do lift (print (ctrlName, cValue)) + AccState.set + (stateChannelParameter .> AccCntn.array chan .> AccCntn.mapDefault 0 ctrlName) + cValue + lift (SCPlay.withSC3 (Trans.send (n_set (channelNodeId chan) + [(ctrlName, cValue)]))) + +playNote :: + ChannelMsg.Channel -> + VoiceMsg.Velocity -> + VoiceMsg.Pitch -> + StateT MIDIState IO () +playNote chan velocity pitch = + do sid <- AccState.getAndModify stateSID succ + AccState.set (stateNoteSID .> AccCntn.mapMaybe (chan, pitch)) (Just sid) + lift $ print (pitch, velocity) + program <- AccState.get (stateChannelProgram .> AccCntn.array chan) + params <- AccState.get (stateChannelParameter .> AccCntn.array chan) + lift $ SCPlay.withSC3 $ Trans.send $ + s_new (programName $ programSounds ! program) + sid AddToTail (channelNodeId chan) $ + ("Pitch", fromIntegral (VoiceMsg.fromPitch pitch)) : + ("Velocity", fromIntegral (VoiceMsg.fromVelocity velocity - 64) / 64) : + Map.toList params + + +stopNote :: + ChannelMsg.Channel -> + VoiceMsg.Pitch -> + StateT MIDIState IO () +stopNote chan pitch = + do sid <- AccState.get (stateNoteSID .> AccCntn.mapMaybe (chan, pitch)) + lift $ maybe + (putStrLn $ "released key " ++ show (chan,pitch) ++ " which was not pressed") + (\s -> SCPlay.withSC3 $ Trans.send $ n_free [s]) + sid + + +data MIDIState = + MIDIState { + stateSID_ :: SCPlay.NodeId, + stateNoteSID_ :: Map (ChannelMsg.Channel, VoiceMsg.Pitch) SCPlay.NodeId, + stateChannelProgram_ :: Array ChannelMsg.Channel VoiceMsg.Program, + stateChannelParameter_ :: Array ChannelMsg.Channel (Map String Double) + } + + +stateSID :: Accessor.T MIDIState SCPlay.NodeId +stateSID = + Accessor.fromSetGet + (\x r -> r{stateSID_ = x}) + stateSID_ + +stateNoteSID :: Accessor.T MIDIState (Map (ChannelMsg.Channel, VoiceMsg.Pitch) SCPlay.NodeId) +stateNoteSID = + Accessor.fromSetGet + (\x r -> r{stateNoteSID_ = x}) + stateNoteSID_ + +stateChannelProgram :: + Accessor.T MIDIState (Array ChannelMsg.Channel VoiceMsg.Program) +stateChannelProgram = + Accessor.fromSetGet + (\x r -> r{stateChannelProgram_ = x}) + stateChannelProgram_ + +stateChannelParameter :: + Accessor.T MIDIState (Array ChannelMsg.Channel (Map String Double)) +stateChannelParameter = + Accessor.fromSetGet + (\x r -> r{stateChannelParameter_ = x}) + stateChannelParameter_ + + +{- +Our SuperCollider node structure is: +One group for every MIDI channel, starting at (succ SCPlay.homeId). +UGens for the instruments are added to the groups of their MIDI channel. +This way we can alter controller values on a per channel basis. +The node ids are counted successively +starting right after the highest group id. +-} + +-- | node id for global effects +effectNodeId :: SCPlay.NodeId +effectNodeId = succ SCPlay.homeId + +-- | initial node id for channel groups +channelInitId :: SCPlay.NodeId +channelInitId = succ effectNodeId + +channelNodeId :: ChannelMsg.Channel -> SCPlay.NodeId +channelNodeId chan = + channelInitId + ChannelMsg.fromChannel chan + +-- | initial node id for tones +toneInitId :: SCPlay.NodeId +toneInitId = channelInitId + numberMIDIChannels + +numberMIDIChannels :: Int +numberMIDIChannels = 16 + +boundMIDIChannels :: (ChannelMsg.Channel, ChannelMsg.Channel) +boundMIDIChannels = + (ChannelMsg.toChannel 0, ChannelMsg.toChannel (pred numberMIDIChannels)) + + + +{- | +Initialize SuperCollider in a way that all sounds +are written to output buffer 0 and are simply mixed. +-} +initSeparate :: Transport t => Trans.IO t () +initSeparate = + mapM + (\p -> Trans.send (SCPlay.d_recv' (programName p) (out 0 (programUGen p)))) + (Array.elems programSounds) >> + (Trans.send $ g_new $ + map + (\chan -> (channelNodeId chan, AddToTail, SCPlay.homeId)) + (uncurry enumFromTo boundMIDIChannels)) + + +programBufferIn :: ProgramSound -> UGen +programBufferIn p = + in' 2 AR (Constant $ fromIntegral $ programBuffer p) + + + + +effectUGen :: UGen +effectUGen = + let lfoSine = + 1000 * exp + (0.3 * sinOsc KR 0.1 (MCE [-pi/2, 0]) + + 0.3 * sinOsc KR (sqrt 0.03) 0) + reverb x = x + 0.5 * combN x 0.2 0.2 5 + in -- sinOsc AR 440 0 + + programBufferIn programPing + + 0.2 * reverb (rlpf (programBufferIn programString) lfoSine 0.1) + + +{- | +Initialize SuperCollider in a way that all sounds +are written to output buffers according to their MIDI program. +You must provide a UGen which puts these buffers together. +This can be simple mixing, but you can also apply effects to the partial sounds. +-} +initEffect :: Transport t => Trans.IO t () +initEffect = + do mapM + (\p -> Trans.send (SCPlay.d_recv' (programName p) + (out (Constant $ fromIntegral $ programBuffer p) (programUGen p)))) + (Array.elems programSounds) + + Trans.send $ g_new $ + map + (\chan -> (channelNodeId chan, AddToTail, SCPlay.homeId)) + (uncurry enumFromTo boundMIDIChannels) + mapM_ + (const (Trans.wait "/done" >> return ())) + (Array.elems programSounds) + + SCPlay.simpleSync $ SCPlay.d_recv' "Effect" $ out 0 effectUGen + Trans.send $ s_new "Effect" effectNodeId AddToTail SCPlay.homeId [] + + + +main :: IO () +main = do + withSC3 reset + SCPlay.withSC3 initEffect + + putStrLn "use 'pmidi -l' to find out the ports from where note messages can be received" + putStrLn "and connect the source with this program using 'aconnect'" + + AlsaMidi.withEvents "supercollider-midi" "supercollider-midi-listen" $ \ ll -> + flip evalStateT + (MIDIState toneInitId Map.empty + (listArray boundMIDIChannels (repeat (VoiceMsg.toProgram 0))) + (listArray boundMIDIChannels (repeat Map.empty))) + (mapM_ (\mev -> case mev of + ChannelMsg.Cons chan (ChannelMsg.Voice ev) -> + case ev of + VoiceMsg.Control ctrl value -> + fromMaybe (return ()) $ + lookup ctrl $ + (VoiceMsg.mainVolumeMSB, + controlChange chan "Volume" id value) : + (VoiceMsg.modulationMSB, + controlChange chan "Modulation" (*0.03) value) : + [] + VoiceMsg.PitchBend value -> + controlChange chan "PitchBend" (/64) value + VoiceMsg.MonoAftertouch value -> + controlChange chan "Aftertouch" (*0.03) value + VoiceMsg.NoteOn pitch velocity -> +{- +NoteOn with velocity 0 is now handled by alsa-midi package + when (VoiceMsg.fromVelocity velocity > 0) $ +-} + playNote chan velocity pitch + VoiceMsg.NoteOff pitch _velocity -> + stopNote chan pitch + VoiceMsg.ProgramChange program -> + lift (print ev) >> + if Array.inRange (Array.bounds programSounds) program + then AccState.set (stateChannelProgram .> AccCntn.array chan) program + else lift $ putStrLn "program unavailable" + _ -> return () + _ -> return ()) + (mapMaybe AlsaMidi.eventToChannelMsg ll)) diff --git a/src/Sound/SC3/MIDI/Wind.hs b/src/Sound/SC3/MIDI/Wind.hs new file mode 100644 --- /dev/null +++ b/src/Sound/SC3/MIDI/Wind.hs @@ -0,0 +1,58 @@ +module Main where +-- module SuperColliderMIDI where + +import Sound.OpenSoundControl +import Sound.SC3 as SC3 +import Sound.SC3.UGen.Noise.Base as Noise + +import qualified Sound.ALSA.Sequencer as AlsaMidi +import qualified Sound.MIDI.Message.Channel as ChannelMsg +import qualified Sound.MIDI.Message.Channel.Voice as VoiceMsg + +import Data.List (lookup) +import Data.Maybe (mapMaybe, fromMaybe, ) + + +sound :: UGen +sound = out 0 + (delayN (0.2 * rlpf + (Noise.whiteNoise (UGenId 0) AR * Control KR "Volume" 1) + (Control KR "Frequency" 400) + (Control KR "Resonance" 0.005)) + 0 (MCE [0, Control KR "Phase" 0])) + +controlChange :: String -> (Double -> Double) -> Int -> IO () +controlChange ctrlName f value = + let cValue = f (fromIntegral value / 127) + in print (ctrlName, cValue) >> + withSC3 (\fd -> send fd (n_set (-1) + [(ctrlName, cValue)])) + + +main :: IO () +main = do + withSC3 reset + audition sound + + putStrLn "turn the wheels ..." + AlsaMidi.withEvents "midinoise" "midinoise-listen" $ \ ll -> + putStrLn "use 'pmidi -l' to find out the ports from where controller values can be received" >> + putStrLn "and connect the source with this program using 'aconnect'" >> + mapM_ (\mev -> case mev of + ChannelMsg.Cons _chan (ChannelMsg.Voice ev) -> + case ev of + VoiceMsg.Control ctrl value -> + fromMaybe (return ()) $ + lookup ctrl $ + (VoiceMsg.mainVolumeMSB, + controlChange "Volume" id value) : + (VoiceMsg.footControlMSB, + controlChange "Frequency" (\x -> 200 * 4 ** x) value) : + (VoiceMsg.breathControlMSB, + controlChange "Resonance" (\x -> 1 / 1000 ** x) value) : + (VoiceMsg.modulationMSB, + controlChange "Phase" (0.002*) value) : + [] + _ -> return () + _ -> return ()) + (mapMaybe AlsaMidi.eventToChannelMsg ll) diff --git a/supercollider-midi.cabal b/supercollider-midi.cabal new file mode 100644 --- /dev/null +++ b/supercollider-midi.cabal @@ -0,0 +1,58 @@ +Name: supercollider-midi +Version: 0.1 +License: GPL +License-File: LICENSE +Author: Henning Thielemann +Maintainer: Henning Thielemann +Homepage: http://www.haskell.org/haskellwiki/SuperCollider +Package-URL: http://darcs.haskell.org/supercollider-midi/ +Category: Sound +Build-Type: Simple +Synopsis: Demonstrate how to control SuperCollider via ALSA-MIDI +Description: + Two small example programs where SuperCollider is controlled by MIDI. + . + * Control parameters of a wind noise via MIDI controllers + . + * Use UGens as instruments, + which will be played upon MIDI messages that arrive through ALSA. + This way you can play MIDI files using @pmidi@ + or you can use your computer as MIDI expander controlled by a keyboard. +Tested-With: GHC==6.8.2 +Cabal-Version: >=1.2 +Build-Type: Simple + + +Flag splitBase + description: Choose the new smaller, split-up base package. + +Library + Build-Depends: + supercollider-ht >= 0.0 && <0.1, + hsc3 >= 0.1 && <0.2, + hosc >= 0.1 && <0.2, + alsa-midi >= 0.4 && < 0.5, + midi >=0.1 && <0.2, + event-list >=0.0.6 && < 0.1, + non-negative>=0.0.1 && <0.1, + data-accessor >=0.1.3 && <0.2 + Build-Depends: mtl >=1 && <2, QuickCheck >=1 && <2 + If flag(splitBase) + Build-Depends: base >= 2, array >=0.1 && <0.2, containers >=0.1 && <0.2, random >=1.0 && <1.1 + Else + Build-Depends: base >= 1.0 && < 2 + + Hs-Source-Dirs: src + Exposed-Modules: +-- Sound.SC3.MIDI.Keyboard + GHC-Options: -Wall -threaded + +Executable sc-keyboard + Hs-source-dirs: src + GHC-Options: -Wall -threaded + Main-Is: Sound/SC3/MIDI/Keyboard.hs + +Executable sc-wind + Hs-source-dirs: src + GHC-Options: -Wall -threaded + Main-Is: Sound/SC3/MIDI/Wind.hs