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Loop.py
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Loop.py
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import ttcommon.Config as Config
import random
import lps
from ttcommon.Generation.Drunk import Drunk, DroneAndJump, Repeter, Loopseg
from ttcommon.Util.CSoundNote import CSoundNote
from ttcommon.Util.CSoundClient import new_csound_client
from ttcommon.Util.NoteDB import Note
from ttcommon.Util.NoteDB import PARAMETER
from ttcommon.Generation.GenerationConstants import GenerationConstants
from ttcommon.Util import InstrumentDB
class Loop:
def __init__(self, beat, volume):
self.instrumentDB = InstrumentDB.getRef()
self.notesDict = {}
self.notesList = []
self.beat = beat
self.volume = volume
self.id = 4000
self.csnd = new_csound_client()
def stop(self, key):
if (Config.DEBUG > 3):
print('stop loop at key: ' + str(key))
for n in self.notesDict[key]:
self.csnd.loopDelete(n)
del self.notesDict[key]
if (Config.DEBUG > 3):
print(self.notesDict)
def start(self, key, instrument, reverb):
if key in self.notesDict:
return
self.notesList = []
for i in lps.LOOPS[key][self.beat - 2]:
note = self.createCsNote(i, instrument, reverb)
n = Note(0, note.trackId, self.id, note)
self.notesList.append(n)
self.id = self.id + 1
self.csnd.loopPlay(n, 1) # add as active
if (Config.DEBUG > 3):
print('play loop at key: ' + str(key))
self.notesDict[key] = self.notesList
if (Config.DEBUG > 3):
print(self.notesDict)
def adjustLoopVolume(self, volume):
self.volume = volume
for k in list(self.notesDict.keys()):
for n in self.notesDict[k]:
self.csnd.loopUpdate(n, PARAMETER.AMPLITUDE,
n.cs.amplitude * self.volume, 1)
def createCsNote(self, i, instrument, reverb):
onset = i[0]
pitch = i[1]
gain = i[2] * self.volume
duration = i[3]
if self.instrumentDB.instNamed[instrument].kit is not None:
if pitch in GenerationConstants.DRUMPITCH:
pitch = GenerationConstants.DRUMPITCH[pitch]
kit = self.instrumentDB.instNamed[instrument].kit[pitch]
instrument = kit.name
pitch = 36
return CSoundNote(
onset=onset, pitch=pitch, amplitude=gain, pan=0.5,
duration=duration, trackId=0,
instrumentId=self.instrumentDB.instNamed[instrument].instrumentId,
reverbSend=reverb, tied=False, mode='mini')
# ############## precompose all loops and write a dictionary #################
def precompose(self, maxbeat):
def makeGainSequence(onsetList):
gainSequence = []
append = gainSequence.append
for onset in onsetList:
if onset == 0:
gain = random.uniform(
GenerationConstants.GAIN_MID_MAX_BOUNDARY,
GenerationConstants.GAIN_MAX_BOUNDARY)
elif (onset % Config.TICKS_PER_BEAT) == 0:
gain = random.uniform(
GenerationConstants.GAIN_MID_MIN_BOUNDARY,
GenerationConstants.GAIN_MID_MAX_BOUNDARY)
else:
gain = random.uniform(
GenerationConstants.GAIN_MIN_BOUNDARY,
GenerationConstants.GAIN_MID_MIN_BOUNDARY)
append(gain)
return gainSequence
def makeDurationSequence(onsetList, barLength):
durationSequence = []
append = durationSequence.append
if len(onsetList) > 1:
for i in range(len(onsetList) - 1):
append((onsetList[i + 1] - onsetList[i]))
append((barLength - onsetList[-1]))
elif len(onsetList) == 1:
append((barLength - onsetList[0]))
return durationSequence
def makePitchSequence(length, pitchRegularity, step, table_pitch,
pitchMethod):
pitchSequence = []
append = pitchSequence.append
numberOfPitch = int((1 - (regularity * .8)) * 10 + 1)
step = -(8 - (int(step * 8)))
max = len(table_pitch) - 1
nextValue = pitchMethod.getNextValue
tonique = GenerationConstants.DEFAULT_TONIQUE
for i in range(numberOfPitch):
append((table_pitch[nextValue(step, max)]) + tonique)
restOfNotes = list(range(length - numberOfPitch))
for i in restOfNotes:
position = i % numberOfPitch
append(pitchSequence[position])
return pitchSequence
def makeRythmSequence(barLength, density, regularity):
rythmSequence = [0, ]
self.count = 0
lastOnsetTime = 0
onsetLen = len(GenerationConstants.LOOP_TABLE_ONSET_VALUES)
onsetValue = int((1 - density) * onsetLen)
onsetDeviation = int((1 - regularity) * 20)
currentOnsetValue = onsetValue + (random.randint(
0, onsetDeviation) - (onsetDeviation / 2))
if currentOnsetValue < 0:
currentOnsetValue = 0
elif currentOnsetValue > onsetLen:
currentOnsetValue = onsetLen
else:
currentOnsetValue = currentOnsetValue
onsetDelta = GenerationConstants.LOOP_TABLE_ONSET_VALUES[
currentOnsetValue]
listLen = list(range(int(barLength / Config.TICKS_PER_BEAT * 8)))
randInt = random.randint
for i in listLen:
if self.count == 0:
currentOnsetValue = onsetValue + (randInt(
0, onsetDeviation) - (onsetDeviation / 2))
if currentOnsetValue < 0:
currentOnsetValue = 0
elif currentOnsetValue > onsetLen:
currentOnsetValue = onsetLen
else:
currentOnsetValue = currentOnsetValue
onsetDelta = GenerationConstants.LOOP_TABLE_ONSET_VALUES[
currentOnsetValue]
if onsetDelta == GenerationConstants.DOUBLE_TICK_DUR:
if self.count < (GenerationConstants.DOUBLE_HOW_MANY - 1):
self.count += 1
else:
self.count = 0
onsetTime = onsetDelta + lastOnsetTime
lastOnsetTime = onsetTime
if onsetTime < barLength:
rythmSequence.append(onsetTime)
continue
else:
break
onsetTime = onsetDelta + lastOnsetTime
lastOnsetTime = onsetTime
if onsetTime < barLength:
rythmSequence.append(onsetTime)
else:
break
return rythmSequence
# ########### begin generate #####################
# file = open(Config.TAM_TAM_ROOT + '/miniTamTam/lps.py', 'w')
# file.write('LOOPS = {\n')
counter = 0
table_pitch = [-12, -10, -12, -7, -5, -4, -2, 0, 2, 0, 5, 7, 8, 10, 12]
table_density = [1., .92, .84, .76, .68, .6, .52, .46, .4, .46, .52,
.6, .68, .76, .84, .95]
table_regularity = [1., .96, .9, .84, .78, .72, .66, .6, .54, .48,
.42, .36, .3, .24, .18, .1]
table_pitchRegularity = [1., .96, .9, .84, .78, .72, .66, .6, .54,
.48, .42, .36, .3, .24, .18, .1]
table_step = [2, 4, 3, 2, 4, 6, 5, 4, 6, 8, 7, 6, 8, 9, 8, 10]
table_pitchMethod = [0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3]
names = ['', '', '02', '03', '04', '05', '06', '07', '08', '09', '10',
'11', '12']
numKeys = 5 # len(Config.LOOP_KEYS)
for key in range(numKeys):
# file.write(str(Config.LOOP_KEYS[key]) + ': [')
for beat in range(2, maxbeat + 1):
density = table_density[key * 3]
regularity = table_regularity[key * 3]
pitchRegularity = table_pitchRegularity[key * 3]
step = table_step[key * 3]
pattern = table_pitchMethod[key * 3]
if pattern == 0:
pitchMethod = Drunk(5, 10)
elif pattern == 1:
pitchMethod = DroneAndJump(5, 10)
elif pattern == 2:
pitchMethod = Repeter(5, 10)
elif pattern == 3:
pitchMethod = Loopseg(5, 10)
barLength = Config.TICKS_PER_BEAT * beat
loopList = []
rythmSequence = makeRythmSequence(barLength, density,
regularity)
pitchSequence = makePitchSequence(
len(rythmSequence), pitchRegularity, step, table_pitch,
pitchMethod)
gainSequence = makeGainSequence(rythmSequence)
durationSequence = makeDurationSequence(
rythmSequence, barLength)
for k in range(len(rythmSequence)):
loopList.append([rythmSequence[k], pitchSequence[k],
gainSequence[k], durationSequence[k]])
f = open(Config.INSTANCE_DIR + '/loops/loop' + names[beat] +
'_' + str(counter) + '.ttl', 'w')
print("open file")
f.write('page_add 1 ' + str(beat) + ' 0 [1, 1, 1, 1, 1]\n')
print("write page_add")
noteIdCount = 0
for l in loopList:
f.write('note_add %s 1 0 %s %s %s 0.5 %s 0 1 0.005 0.098 '
'0.1 0 1000 0 edit\n' % (
str(counter + noteIdCount + 1000), str(l[0]),
str(l[1]), str(l[2]), str(l[3])))
noteIdCount += 1
f.close()
counter += 1