46 lines
856 B
Python
46 lines
856 B
Python
|
#!/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()
|