pyfxr - a simple synth for games¶
pyfxr generates tones and noises in fast Cython code, and is intended for use in simple Python computer games and in education. It can generate:
Highly configurable noises (the original sfxr)
Pure tones with sine, square, saw and triangle waveforms
Pluck sounds, like harp or guitar, using the Karplus-Strong algorithm
Sounds can be played with any library that supports the buffer protocol (such
as Pygame), or saved to .wav files.
For example, this is a complete program to generate a 1s pluck sound and play it with Pygame:
import pygame.mixer
import time
import pyfxr
# pyfxr generates mono 44kHz sounds so we must set
# Pygame to use this
pygame.mixer.pre_init(44100, channels=1)
pygame.mixer.init()
tone = pyfxr.pluck(duration=1.0, pitch='A4')
pygame.mixer.Sound(buffer=tone).play()
# wait for the sound to finish before exiting
time.sleep(tone.duration)
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