diff options
Diffstat (limited to 'pysamples/csound.py')
| -rw-r--r-- | pysamples/csound.py | 51 |
1 files changed, 46 insertions, 5 deletions
diff --git a/pysamples/csound.py b/pysamples/csound.py index 52aef1f..f2bccfa 100644 --- a/pysamples/csound.py +++ b/pysamples/csound.py @@ -5,6 +5,7 @@ # 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 @@ -14,8 +15,6 @@ def myblock(tw, sound): from TurtleArt.tautils import get_path import os - import sys - from gettext import gettext as _ dirs = [os.path.join(os.environ['HOME'], 'Activities/TamTamMini.activity/common/Resources/Sounds/')] @@ -29,6 +28,37 @@ def myblock(tw, sound): 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'): @@ -90,10 +120,21 @@ def myblock(tw, sound): csd.write("\n</CsoundSynthesizer>") csd.close() - playWave(sound) # Create a score. + 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'), sound + '.csd') + path = os.path.join(get_path(tw.activity, 'instance'), 'tmp.csd') else: - path = os.path.join('/tmp', sound + '.csd') + path = os.path.join('/tmp', 'tmp.csd') audioWrite(path) # Create a csound file from the score. os.system('csound ' + path) # Play the csound file. |