Python bindings for Csound
These bindings can be used with any version of csound >= 6.18. Csound 7 is explicitely supported.
Installation
Csound needs to be installed in the system.
pip install ctcsound7Quick Start
Rendering in real-time using a render thread
import ctcsound7 as ct
csound = ct.Csound()
csound.setOption('-odac')
csound.compileOrc(r'''
sr = 44100 ; Modify to fit your system
ksmps = 64
nchnls = 2
0dbfs = 1
instr 1
kchan init -1
kchan = (kchan + metro:k(1)) % nchnls
if changed:k(kchan) == 1 then
println "Channel: %d", kchan + 1
endif
asig = pinker() * 0.2
outch kchan + 1, asig
endin
''')
csound.start()
thread = csound.performanceThread()
thread.play()
# Schedule an instance of instr 1 for 10 seconds
thread.scoreEvent(0, "i", [1, 0, 10])
input("Press any key to stop...\n")
thread.stop()Render offline
import ctcsound7 as ct
csound = ct.Csound()
csound.setOption('-ooutfile.wav')
csound.compileOrc(r'''
sr = 44100
ksmps = 64
nchnls = 2
0dbfs = 1
instr 1
kchan init -1
kchan = (kchan + metro:k(1)) % nchnls
if changed:k(kchan) == 1 then
println "Channel: %d", kchan + 1
endif
asig = pinker() * 0.2
outch kchan + 1, asig
endin
''')
csound.start()
csound.scoreEvent("i", [1, 0, 10])
csound.setEndMarker(10)
# Perform until the end of the score
while not csound.performKsmps():
pass1 maintainer
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