nixfiles/nixos/boxes/kelder/amogus_beep.py

46 lines
856 B
Python
Executable File

#!/usr/bin/env python3
import subprocess
import math
# https://en.wikipedia.org/wiki/Piano_key_frequencies
def note_freq(n):
return math.pow(2, (n - 49) / 12) * 440
def gen_beep_command(notes, bpm):
cmd = ['beep']
for i, (n, d) in enumerate(notes):
f = note_freq(n)
ms = (d / (bpm/60)) * 1000
cmd += ['-f', str(int(f)), '-l', str(int(ms))]
if i != len(notes) -1:
cmd.append('-n')
return cmd
# First 2 bars of https://musescore.com/user/5032516/scores/6519100 ;)
tempo = 94
melody = [
(52, 1/2),
(55, 1/2),
(57, 1/2),
(58, 1/2),
(57, 1/2),
(55, 1/2),
(52, 1+1/2),
(50, 1/4),
(54, 1/4),
(52, 1),
]
def main():
cmd = gen_beep_command(melody, tempo)
# print(' '.join(cmd))
subprocess.check_call(cmd)
if __name__ == '__main__':
main()