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Python 2/3 music synthesizer scripts (old but still functional project)
mdoege/PySynth
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PySynth is no longer being actively developed by me and has therefore been removed from PyPI.
There is now a maintained fork of PySynth atg4brielvs/PySynth.
PySynth is a simple music synthesizer for Python 2 or 3. The goal is not to produce many different sounds, but to have scripts that can turn ABC notation or MIDI files into a WAV file without too much tinkering.
The current release of the synthesizer can only play one note at a time. (Although successive notes can overlap in PySynth B and S, but not A.) However, two output files can be mixed together to get stereo sound.
| Synth | Synthesis method | Approximate timbre | Note decay | Needs NumPy? |
|---|---|---|---|---|
| A | additive (3 sine waves) | flute, organ, piano | variable (depends on note length) | no |
| B | additive (5 sine waves) | acoustic piano | medium | yes |
| C | subtractive (sawtooth wave) | bowed string, analog synth pad | none | no |
| D | subtractive (square wave) | woodwind, analog synth lead | none | no |
| E | FM/phase modulation (6 sine waves) | DX7 Rhodes piano | medium | yes |
| P | subtractive (white noise) | untuned percussion hit | very fast | no |
| S | Karplus-Strong (physical modeling) | plucked string, guitar, koto | fast | yes |
| beeper | additive | Nokia phone ringtone | none | no |
| samp | sampler | Salamander Grand Piano | medium | yes |
Clone the repository:
git clone git@github.com:mdoege/PySynth.git
or
git clone https://github.com/mdoege/PySynth.git
Enter the directory (cd PySynth) and run
python3 setup.py install
Basic usage:
importpysynthaspstest= (('c',4), ('e',4), ('g',4),('c5',-2), ('e6',8), ('d#6',2))ps.make_wav(test,fn="test.wav")
More advanced usage:
importpysynth_baspsb# a, b, e, and s variants available''' (note, duration)Note name (a to g), then optionally a '#' for sharp or'b' for flat, then optionally the octave (defaults to 4).An asterisk at the end means to play the note a littlelouder. Duration: 4 is a quarter note, -4 is a dottedquarter note, etc.'''song= ( ('c',4), ('c*',4), ('eb',4), ('g#',4), ('g*',2), ('g5',4), ('g5*',4), ('r',4), ('e5',16), ('f5',16), ('e5',16), ('d5',16), ('e5*',4) )# Beats per minute (bpm) is really quarters per minute herepsb.make_wav(song,fn="danube.wav",leg_stac=.7,bpm=180)
Read ABC file and output WAV:
python3 read_abc.py straw.abc
More documentation and examples at thePySynth homepage.