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Pure-python library for generating audio tones, with support for polyphony, pitch-bending and vibrato
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eriknyquist/tones
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A pure-python module for generating simple tones as audio samples, which canoptionally be written directly to a .wav audio file. Supports pitch-bending,vibrato, polyphony, several waveform types (sine, square, triangle,sawtooth), and several other waveform-shaping options.
Install from the PyPi repository:
pip install tones
fromtonesimportSINE_WAVE,SAWTOOTH_WAVEfromtones.mixerimportMixer# Create mixer, set sample rate and amplitudemixer=Mixer(44100,0.5)# Create two monophonic tracks that will play simultaneously, and set# initial values for note attack, decay and vibrato frequency (these can# be changed again at any time, see documentation for tones.Mixermixer.create_track(0,SAWTOOTH_WAVE,vibrato_frequency=7.0,vibrato_variance=30.0,attack=0.01,decay=0.1)mixer.create_track(1,SINE_WAVE,attack=0.01,decay=0.1)# Add a 1-second tone on track 0, slide pitch from c# to f#)mixer.add_note(0,note='c#',octave=5,duration=1.0,endnote='f#')# Add a 1-second tone on track 1, slide pitch from f# to g#)mixer.add_note(1,note='f#',octave=5,duration=1.0,endnote='g#')# Mix all tracks into a single list of samples and write to .wav filemixer.write_wav('tones.wav')# Mix all tracks into a single list of samples scaled from 0.0 to 1.0, and# return the sample listsamples=mixer.mix()
Full API documention is here:https://tones.readthedocs.io
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Pure-python library for generating audio tones, with support for polyphony, pitch-bending and vibrato