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Audio

pull/10/head
Jure Šorn 5 years ago
parent
commit
8e3fd1a7df
1 changed files with 3 additions and 3 deletions
  1. 6
      README.md

6
README.md

@ -1574,13 +1574,13 @@ wf.close()
import simpleaudio, math, struct
from itertools import chain, repeat
F = 44100
S1 = '59J,57j,,59J,54j,,50J,54j,,47J,,,'
S2 = '59J,61j,,62J,61j,,62j,,59j,,61J,59j,,61j,,57j,,59J,57j,,59j,,55j,,59J,,,'
S1 = '59♪,57,,59♪,54,,50♪,54,,47♪,,,'
S2 = '59♪,61,,62♪,61,,62,,59,,61♪,59,,61,,57,,59♪,57,,59,,55,,59♪,,,'
sin_f = lambda i, hz: math.sin(i * 2 * math.pi * hz / F)
get_wave = lambda hz, seconds: (sin_f(i, hz) for i in range(int(seconds * F)))
get_pause = lambda seconds: repeat(0, int(seconds * F))
get_hz = lambda note: round(16.352 * 2 ** (int(note[:2])/12))
parse_n = lambda note: (get_hz(note), 0.25 if note[2] == 'J' else 0.125)
parse_n = lambda note: (get_hz(note), 0.25 if len(note) > 2 else 0.125)
get_note = lambda note: get_wave(*parse_n(note)) if note else get_pause(0.125)
samples_f = chain.from_iterable(get_note(n) for n in f'{S1}{S1}{S2}'.split(','))
samples_b = b''.join(struct.pack('<h', int(a * 30000)) for a in samples_f)

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