Python synthesizer 
- Virtual analog synthesizer.
$ pip install synthesizer
$ apt install portaudio19-dev
$ pip install pyaudio
$ brew install portaudio
$ pip install pyaudio
>>> from synthesizer import Player, Synthesizer, Waveform
>>> player = Player()
>>> player.open_stream()
>>> synthesizer = Synthesizer(osc1_waveform=Waveform.sine, osc1_volume=1.0, use_osc2=False)
# Play A4
>>> player.play_wave(synthesizer.generate_constant_wave(440.0, 3.0))
# Play C major
>>> chord = [261.626, 329.628, 391.996]
>>> player.play_wave(synthesizer.generate_chord(chord, 3.0))
>>> player.enumerate_device()
# index: 00, name: "Built-in Microphone", rate: 44100
# index: 01, name: "Built-in Output", rate: 44100
# index: 02, name: "UA-25EX 44.1kHz", rate: 44100
>>> player.open_stream(device_name="UA-25EX")
>>> from synthesizer import Writer
>>> writer = Writer()
>>> chord = [261.626, 329.628, 391.996]
>>> wave = synthesizer.generate_chord(chord, 3.0)
>>> writer.write_wave("path/to/your.wav", wave)
- macOS 10.12 and above
- Ubuntu 16.04
- Python 2.7
- Python 3.4 and above
