class SFM(object):
# pitch registers
transpositionSemitones = 0
octaveNumber = 3
# tempo registers
tempo = 60
currentBeatValue = 60.0/tempo
currentBeat = 0
totalDuration = 0.0
# dynamics registers
crescendoSpeed = 1.1
currentCrescendoSpeed = crescendoSpeed
crescendoBeatsRemaining = 0.0
maximumAmplitude = 0.0
# tuple registers
duration = 60.0/tempo
amplitude = 1.0
decay = 1.0
# I/O
input = ""
#########################################################
# initialize Note, Rhythm, and Dynamics objects
def __init__(self, SCALE):
NOTES, FREQ_DICT = SCALE
self.note = Note(NOTES, FREQ_DICT)
self.rhythm = Rhythm()
self.dynamics = Dynamics()
self.equalizerFactor = { }
self.equalizerFactor[-0.1] = 1.0
self.equalizerFactor[220] = 1.0
self.equalizerFactor[440] = 0.7
self.equalizerFactor[880] = 0.35
self.equalizerFactor[1760] = 0.15
self.equalizerFactor[3520] = 0.15
self.equalizerFactor[7040] = 0.15
self.equalizerFactor[14080] = 0.15
self.equalizerFactor[28160] = 0.15
self.equalizerFactor[56320] = 0.15
self.equalizerBreakPoints = [-0.1, 220, 440, 880, 1760, 3520, 7040, 14080, 28160, 56320]
# self.tempo = 60
# self.currentBeatValue = 60.0/self.tempo
# self.octaveNumber = 3
def equalize(self, freq):
a, b = interval(freq, self.equalizerBreakPoints)
f = mapInterval(freq, a,b, self.equalizerFactor[a], self.equalizerFactor[b])
# print freq, a, b, f
return f
# return tuple as string given frequency,
# duration, decay, and amplitude
def _tuple(self, freq, duration):
output = `freq`
output += " "+`duration`
a = self.amplitude
a = a*self.equalize(freq)
output += " "+`a`
output += " "+`self.decay`
return output
# return tuple as string from frequency of token
# and root and suffix of token
def tuple(self, freq, root, suffix):
if suffix.find(",") > -1:
thisDuration = self.duration*(1 - self.rhythm.breath)
output = self._tuple(freq, thisDuration)
output += "\n"
output += self._tuple(0, self.duration - thisDuration)
else:
output = self._tuple(freq, self.duration)
return output
def updateRhythm(self, cmd):
self.currentBeatValue, self.duration = self.rhythm.value(cmd, self)
def emitNote(self, token):
if self.crescendoBeatsRemaining > 0:
self.amplitude = self.amplitude*self.currentCrescendoSpeed
self.crescendoBeatsRemaining -= self.currentBeatValue
freq, root, suffix = self.note.freq(token, self.transpositionSemitones, self.octaveNumber)
self.output += self.tuple(freq, root, suffix) + "\n"
# summary data
self.totalDuration += self.duration
self.currentBeat += self.currentBeatValue
if self.amplitude > self.maximumAmplitude:
self.maximumAmplitude = self.amplitude
def executeCommand(self, ops):
cmd = ops[0]
# if cmd is a rhythm symbol, change value of duration register
if self.rhythm.isRhythmOp(cmd):
self.updateRhythm(cmd)
# if cmd is a tempo command, change value of the tempo register
if self.rhythm.isTempoOp(cmd):
self.tempo = self.rhythm.tempo[cmd]
self.updateRhythm(cmd)
if cmd == "tempo":
self.tempo = float(ops[1])
self.updateRhythm(cmd)
# if cmd is an articulation command, change value of the decay register
if self.rhythm.isArticulationOp(cmd):
self.decay = self.rhythm.decay[cmd]
# if cmd is a dynamics command, change value of the amplitude register
if self.dynamics.isDynamicsConstant(cmd):
self.amplitude = self.dynamics.value[cmd]
# crescendo and decrescendo
if cmd == "crescendo" or cmd == "cresc":
self.crescendoBeatsRemaining = float(ops[1])
self.currentCrescendoSpeed = self.crescendoSpeed
if cmd == "decrescendo" or cmd == "decresc":
self.crescendoBeatsRemaining = float(ops[1])
self.currentCrescendoSpeed = 1.0/self.crescendoSpeed
# pitch transposition
if cmd == "octave":
self.octaveNumber = int(ops[1])
if cmd == "transpose":
self.transpositionSemitones = int(ops[1])
# pass special commands through
if cmd[0] == '@':
CMD = catList2(ops)
CMD = CMD[:len(CMD)]+"\n"
self.output += CMD
# tuples: returns a string of tuples from input = solfa text
def tuples(self):
# split intput into list of tokens
self.input = self.input.replace("\n", " ")
tokens = self.input.split(" ")
# make sure there are not empty list elements
tokens = filter( lambda x: len(x), tokens)
# initialize output
self.output = ""
for token in tokens:
if self.note.isNote(token):
self.emitNote(token)
else:
ops = token.split(":")
ops = filter(lambda x: len(x) > 0, ops)
if DEBUG == ON:
self.output += "cmd: "+ `ops`+"\n"
self.executeCommand(ops)
return self.output
class SFM(object):
# pitch registers
transpositionSemitones = 0
octaveNumber = 3
# tempo registers
tempo = 60
currentBeatValue = 60.0 / tempo
currentBeat = 0
totalDuration = 0.0
# dynamics registers
crescendoSpeed = 1.1
currentCrescendoSpeed = crescendoSpeed
crescendoBeatsRemaining = 0.0
maximumAmplitude = 0.0
# tuple registers
duration = 60.0 / tempo
amplitude = 1.0
decay = 1.0
# I/O
input = ""
#########################################################
# initialize Note, Rhythm, and Dynamics objects
def __init__(self, SCALE):
NOTES, FREQ_DICT = SCALE
self.note = Note(NOTES, FREQ_DICT)
self.rhythm = Rhythm()
self.dynamics = Dynamics()
self.equalizerFactor = {}
self.equalizerFactor[-0.1] = 1.0
self.equalizerFactor[220] = 1.0
self.equalizerFactor[440] = 0.7
self.equalizerFactor[880] = 0.35
self.equalizerFactor[1760] = 0.15
self.equalizerFactor[3520] = 0.15
self.equalizerFactor[7040] = 0.15
self.equalizerFactor[14080] = 0.15
self.equalizerFactor[28160] = 0.15
self.equalizerFactor[56320] = 0.15
self.equalizerBreakPoints = [
-0.1, 220, 440, 880, 1760, 3520, 7040, 14080, 28160, 56320
]
# self.tempo = 60
# self.currentBeatValue = 60.0/self.tempo
# self.octaveNumber = 3
def equalize(self, freq):
a, b = interval(freq, self.equalizerBreakPoints)
f = mapInterval(freq, a, b, self.equalizerFactor[a],
self.equalizerFactor[b])
# print freq, a, b, f
return f
# return tuple as string given frequency,
# duration, decay, and amplitude
def _tuple(self, freq, duration):
output = ` freq `
output += " " + ` duration `
a = self.amplitude
a = a * self.equalize(freq)
output += " " + ` a `
output += " " + ` self.decay `
return output
# return tuple as string from frequency of token
# and root and suffix of token
def tuple(self, freq, root, suffix):
if suffix.find(",") > -1:
thisDuration = self.duration * (1 - self.rhythm.breath)
output = self._tuple(freq, thisDuration)
output += "\n"
output += self._tuple(0, self.duration - thisDuration)
else:
output = self._tuple(freq, self.duration)
return output
def updateRhythm(self, cmd):
self.currentBeatValue, self.duration = self.rhythm.value(cmd, self)
def emitNote(self, token):
if self.crescendoBeatsRemaining > 0:
self.amplitude = self.amplitude * self.currentCrescendoSpeed
self.crescendoBeatsRemaining -= self.currentBeatValue
freq, root, suffix = self.note.freq(token, self.transpositionSemitones,
self.octaveNumber)
self.output += self.tuple(freq, root, suffix) + "\n"
# summary data
self.totalDuration += self.duration
self.currentBeat += self.currentBeatValue
if self.amplitude > self.maximumAmplitude:
self.maximumAmplitude = self.amplitude
def executeCommand(self, ops):
cmd = ops[0]
# if cmd is a rhythm symbol, change value of duration register
if self.rhythm.isRhythmOp(cmd):
self.updateRhythm(cmd)
# if cmd is a tempo command, change value of the tempo register
if self.rhythm.isTempoOp(cmd):
self.tempo = self.rhythm.tempo[cmd]
self.updateRhythm(cmd)
if cmd == "tempo":
self.tempo = float(ops[1])
self.updateRhythm(cmd)
# if cmd is an articulation command, change value of the decay register
if self.rhythm.isArticulationOp(cmd):
self.decay = self.rhythm.decay[cmd]
# if cmd is a dynamics command, change value of the amplitude register
if self.dynamics.isDynamicsConstant(cmd):
self.amplitude = self.dynamics.value[cmd]
# crescendo and decrescendo
if cmd == "crescendo" or cmd == "cresc":
self.crescendoBeatsRemaining = float(ops[1])
self.currentCrescendoSpeed = self.crescendoSpeed
if cmd == "decrescendo" or cmd == "decresc":
self.crescendoBeatsRemaining = float(ops[1])
self.currentCrescendoSpeed = 1.0 / self.crescendoSpeed
# pitch transposition
if cmd == "octave":
self.octaveNumber = int(ops[1])
if cmd == "transpose":
self.transpositionSemitones = int(ops[1])
# pass special commands through
if cmd[0] == '@':
CMD = catList2(ops)
CMD = CMD[:len(CMD)] + "\n"
self.output += CMD
# tuples: returns a string of tuples from input = solfa text
def tuples(self):
# split intput into list of tokens
self.input = self.input.replace("\n", " ")
tokens = self.input.split(" ")
# make sure there are not empty list elements
tokens = filter(lambda x: len(x), tokens)
# initialize output
self.output = ""
for token in tokens:
if self.note.isNote(token):
self.emitNote(token)
else:
ops = token.split(":")
ops = filter(lambda x: len(x) > 0, ops)
if DEBUG == ON:
self.output += "cmd: " + ` ops ` + "\n"
self.executeCommand(ops)
return self.output
