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#Copyright (c) 2011 Walter Bender
# This procedure is invoked when the user-definable block on the
# "extras" palette is selected.
# Usage: Import this code into a Python (user-definable) block and
# pass a sound name Python block. The sound will play.
# Alternatively, pass a pitch, amplitude, and duration, e.g., 440, 5000, 1
# Note: Assumes TamTam suite is installed in ~/Activities
def myblock(tw, sound):
''' Plays a sound file '''
from TurtleArt.tautils import get_path
import os
dirs = [os.path.join(
os.environ['HOME'],
'Activities/TamTamMini.activity/common/Resources/Sounds/')]
orchlines = []
scorelines = []
instrlist = []
def finddir():
for d in dirs:
if os.path.isdir(d):
return d
def playSine(pitch=1000, amplitude=5000, duration=1, starttime=0,
pitch_envelope='default', amplitude_envelope='default'):
""" Create a score to play a sine wave. """
_play(pitch, amplitude, duration, starttime, pitch_envelope,
amplitude_envelope, 1)
def _play(pitch, amplitude, duration, starttime, pitch_envelope,
amplitude_envelope, instrument):
if pitch_envelope == 'default':
pitenv = 99
else:
pitenv = pitch_envelope
if amplitude_envelope == 'default':
ampenv = 100
else:
ampenv = amplitude_envelope
if not 1 in instrlist:
orchlines.append("instr 1\n")
orchlines.append("kpitenv oscil 1, 1/p3, p6\n")
orchlines.append("aenv oscil 1, 1/p3, p7\n")
orchlines.append("asig oscil p5*aenv, p4*kpitenv, p8\n")
orchlines.append("out asig\n")
orchlines.append("endin\n\n")
instrlist.append(1)
scorelines.append("i1 %s %s %s %s %s %s %s\n" %
(str(starttime), str(duration), str(pitch),
str(amplitude), str(pitenv), str(ampenv),
str(instrument)))
def playWave(sound='horse', pitch=1, amplitude=1, loop=False, duration=1,
starttime=0, pitch_envelope='default',
amplitude_envelope='default'):
""" Create a score to play a wave file. """
if '/' in sound:
fullname = sound
else:
fullname = finddir() + str(sound)
if loop:
lp = 1
else:
lp = 0
if pitch_envelope == 'default':
pitenv = 99
else:
pitenv = pitch_envelope
if amplitude_envelope == 'default':
ampenv = 100
else:
ampenv = amplitude_envelope
if not 9 in instrlist:
orchlines.append("instr 9\n")
orchlines.append("kpitenv oscil 1, 1/p3, p8\n")
orchlines.append("aenv oscil 1, 1/p3, p9\n")
orchlines.append("asig diskin p4, p5*kpitenv, 0, p7\n")
orchlines.append("out asig*p6*aenv\n")
orchlines.append("endin\n\n")
instrlist.append(9)
scorelines.append('i9 %f %f "%s" %s %s %s %s %s\n' %
(float(starttime), float(duration), fullname,
str(pitch), str(amplitude), str(lp), str(pitenv),
str(ampenv)))
def audioWrite(file):
""" Compile a .csd file. """
csd = open(file, "w")
csd.write("<CsoundSynthesizer>\n\n")
csd.write("<CsOptions>\n")
csd.write("-+rtaudio=alsa -odevaudio -m0 -d -b256 -B512\n")
csd.write("</CsOptions>\n\n")
csd.write("<CsInstruments>\n\n")
csd.write("sr=16000\n")
csd.write("ksmps=50\n")
csd.write("nchnls=1\n\n")
# csd.write(orchlines.pop())
for line in orchlines:
csd.write(line)
csd.write("\n</CsInstruments>\n\n")
csd.write("<CsScore>\n\n")
csd.write("f1 0 2048 10 1\n")
csd.write("f2 0 2048 10 1 0 .33 0 .2 0 .143 0 .111\n")
csd.write("f3 0 2048 10 1 .5 .33 .25 .2 .175 .143 .125 .111 .1\n")
csd.write("f10 0 2048 10 1 0 0 .3 0 .2 0 0 .1\n")
csd.write("f99 0 2048 7 1 2048 1\n")
csd.write("f100 0 2048 7 0. 10 1. 1900 1. 132 0.\n")
csd.write(scorelines.pop())
csd.write("e\n")
csd.write("\n</CsScore>\n")
csd.write("\n</CsoundSynthesizer>")
csd.close()
if type(sound) == float:
playSine(pitch=float(sound))
elif type(sound) == list: # Create a score by computing a sinewave.
if len(sound) == 1:
playSine(pitch=float(sound[0]))
elif len(sound) == 2:
playSine(pitch=float(sound[0]), amplitude=float(sound[1]))
else:
playSine(pitch=float(sound[0]), amplitude=float(sound[1]),
duration=float(sound[2]))
else: # Create a score from a prerecorded Wave file.
playWave(sound)
if tw.running_sugar:
path = os.path.join(get_path(tw.activity, 'instance'), 'tmp.csd')
else:
path = os.path.join('/tmp', 'tmp.csd')
audioWrite(path) # Create a csound file from the score.
os.system('csound ' + path) # Play the csound file.
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