Python 输入一系列音符并播放
我儿子和我正试图编写一个程序，允许用户输入一系列的音符，并将它们保存到一个列表中以便回放。我们得出以下结论：Python 输入一系列音符并播放,python,python-3.x,pyaudio,Python,Python 3.x,Pyaudio,我儿子和我正试图编写一个程序，允许用户输入一系列的音符，并将它们保存到一个列表中以便回放。我们得出以下结论： import math #import needed modules import pyaudio #sudo apt-get install python-pyaudio def playnote(char): octave = int(char[1]) if char[0] == 'c': frequency = 16.35*o
import math #import needed modules
import pyaudio #sudo apt-get install python-pyaudio
def playnote(char):
octave = int(char[1])
if char[0] == 'c':
frequency = 16.35*octave+1
elif char[0] =='C':
frequency = 17.32*octave+1
elif char[0] =='d':
frequency = 18.35*octave+1
elif char[0] == 'D':
frequency = 19.45*octave+1
elif char[0] =='e':
frequency = 20.6*octave+1
elif char[0] == 'f':
frequency = 21.83*octave+1
elif char[0] =='F':
frequency = 23.12*octave+1
elif char[0] == 'g':
frequency = 24.5*octave+1
elif char[0] == 'G':
frequency = 25.96*octave+1
elif char[0] == 'a':
frequency = 27.5*octave+1
elif char[0] == 'A':
frequency = 29.14*octave+1
elif char[0] == 'b':
frequency = 30.87*octave+1
elif char[0] == 'p':
del song[-1]
PyAudio = pyaudio.PyAudio #initialize pyaudio
#See https://en.wikipedia.org/wiki/Bit_rate#Audio
bitrate = 256000 #number of frames per second/frameset.
# frequency = 220 #Hz, waves per second, 261.63=C4-note.
LENGTH = 1 #seconds to play sound
if frequency > bitrate:
bitrate = frequency+100
frames = int(bitrate * LENGTH)
# RESTFRAMES = frames % bitrate
wavedata = ''
#generating waves
for x in range(frames):
wavedata = wavedata+chr(int(math.sin(x/((bitrate/frequency)/math.pi))*127+128))
# for x in range(RESTFRAMES):
# wavedata = wavedata+chr(128)
p = PyAudio()
stream = p.open(format = p.get_format_from_width(1),
channels = 1,
rate = bitrate,
output = True)
stream.write(wavedata)
stream.stop_stream()
stream.close()
p.terminate()
song = []
while True:
try:
note = str(input('''Enter note (A-G) (capital for sharp)
and an octave (0-8) or any other key to play: '''))
playnote(note)
song.append(note)
except:
for note in song:
playnote(note)
break
几乎可以肯定的是，有很多合成器或程序可以做这样的事情。然而，你自己做这件事有很多乐趣和价值，老实说，我不能给你指出任何具体的东西。对于您的任务，您可以通过添加额外的谐波来创建方波和正弦波，根据模式添加额外的谐波（正如我在下面的一些案例中所做的），或者更改起始、相位、振幅或任何其他方面来修改波形
import math # import needed modules
import pyaudio # sudo apt-get install python-pyaudio
scale_notes = {
# pitch standard A440 ie a4 = 440Hz
'c': 16.35,
'C': 17.32,
'd': 18.35,
'D': 19.45,
'e': 20.6,
'f': 21.83,
'F': 23.12,
'g': 24.5,
'G': 25.96,
'a': 27.5,
'A': 29.14,
'b': 30.87
}
def playnote(note, note_style):
octave = int(note[1])
frequency = scale_notes[note[0]] * (2**(octave + 1))
p = pyaudio.PyAudio() # initialize pyaudio
# sampling rate
sample_rate = 22050
LENGTH = 1 # seconds to play sound
frames = int(sample_rate * LENGTH)
wavedata = ''
# generating waves
stream = p.open(
format=p.get_format_from_width(1),
channels=1,
rate=sample_rate,
output=True)
for x in range(frames):
wave = math.sin(x / ((sample_rate / frequency) / math.pi)) * 127 + 128
if note_style == 'bytwos':
for i in range(3):
wave += math.sin((2 + 2**i) * x /
((sample_rate / frequency) / math.pi)) * 127 + 128
wavedata = (chr(int(wave / 4)
))
elif note_style == 'even':
for i in range(3):
wave += math.sin((2 * (i + 1)) * x /
((sample_rate / frequency) / math.pi)) * 127 + 128
wavedata = (chr(int(wave / 4)
))
elif note_style == 'odd':
for i in range(3):
wave += math.sin(((2 * i) + 1) * x /
((sample_rate / frequency) / math.pi)) * 127 + 128
wavedata = (chr(int(wave / 4)
))
elif note_style == 'trem':
wave = wave * (1 + 0.5 * math.sin((1 / 10)
* x * math.pi / 180)) / 2
wavedata = (chr(int(wave)))
else:
wavedata = (chr(int(wave))
)
stream.write(wavedata)
stream.stop_stream()
stream.close()
p.terminate()
song = []
while True:
song_composing = True
note = ''
while note != 'p':
note = str(input(
'''Enter note (a-G) (capital for sharp) and an octave (0-8) or any other key to play: '''))
if note[0] in scale_notes:
note_style = str(
input('''Enter style (bytwos, even, odd, trem): '''))
song.append((note, note_style))
playnote(note, note_style)
for notes in song:
playnote(notes[0], notes[1])
break
我建议使用缓冲区而不是一次性方法来计算下一个值。在下一个音频样本到期之前，您要完成的过程的能力将阻碍您生成良好的声音（并应用更复杂的算法）。我认为这超出了这个特定问题的范围，但是在这个应用程序中使用pyaudio的回调方法也可能是很好的：如果您正在寻找使用Python制作音乐的其他工作，您可能会发现下面的程序是一个很有帮助的灵感。它使用Windows上的
winsound#! /usr/bin/env python3
import msvcrt
import random
import time
import winsound
# CONSTANTS
KEYS = 'zsxcfvgbnjmk,l./\'q2we4r5t6yu8i9op-[=]'
A4 = 440
AUTHOR = '.\',zb'
NEW_SONG = ('vm',
'zv',
'cn',
'vm',
'xb',
'cn',
'zv')
# CONFIGURATION
NS_SP = 1
SPEED = 5
HOLD_RATIO = 0.95
TRANSPOSE = 0
PAUSE_TIME = 2
SHOW_FREQU = False
# RANDOM
NEIGHBOR_RATIO = 0.9
ODD_RATIO = 0.05
SWITCH_RATIO = 0.01
WHITE_KEYS = 'zxcvbnm,./qwertyuiop[]'
BLACK_KEYS = 'sfgjkl\'245689-='
EXAMPLE_SONG_1 = [('x', 1),
('x', 2),
('x', 1),
('x', 1),
('f', 1),
('g', 1),
('b', 2),
('b', 1),
('g', 2),
('x', 1),
('k', 2),
('k', 1),
('j', 2),
('g', 1),
('f', 5),
('x', 1),
('k', 2),
('k', 1),
('l', 1),
('.', 1),
("'", 1),
('j', 2),
('j', 1),
('g', 2),
('g', 1),
('b', 2),
('g', 1),
('f', 1),
('x', 1),
('f', 1),
('x', 5)]
EXAMPLE_SONG_2 = [('j', 2),
('j', 1),
('j', 2),
('.', 1),
('b', 2),
('j', 1),
('b', 1),
('g', 1.5),
('f', 0.5),
('g', 2),
('g', 1),
('g', 1),
('f', 1),
('x', 1),
('f', 6),
('j', 2),
('j', 1),
('j', 2),
('.', 1),
('b', 2),
('j', 1),
('b', 1),
('g', 1.5),
('f', 0.5),
('g', 2),
('g', 1),
('f', 1),
('x', 1),
('f', 1),
('x', 5),
('x', 1),
('k', 2),
('k', 1),
('l', 3),
('l', 2),
("'", 1),
('.', 2),
('.', 1),
('.', 2),
('.', 1),
('2', 1),
("'", 1),
('.', 1),
('j', 6),
('j', 2),
('j', 1),
('j', 2),
('.', 1),
('b', 2),
('j', 1),
('b', 1),
('g', 1.5),
('f', 0.5),
('g', 2),
('g', 1),
('f', 1),
('x', 1),
('f', 1),
('x', 6)]
EXAMPLE_SONG_3 = [(' ', 1),
('x', 0.5),
('f', 0.5),
('g', 0.5),
('b', 0.5),
('j', 1),
('.', 3),
('.', 0.5),
('l', 0.5),
('k', 0.5),
('l', 0.5),
('j', 3),
(' ', 1),
('k', 0.5),
('j', 0.5),
('b', 0.5),
('k', 0.5),
('j', 1),
('x', 3),
('f', 0.5),
('g', 0.5),
('b', 0.5),
('g', 0.5),
('f', 3),
(' ', 1),
('x', 0.5),
('f', 0.5),
('g', 0.5),
('b', 0.5),
('j', 1),
('.', 3),
('.', 0.5),
('l', 0.5),
('k', 0.5),
('l', 0.5),
('j', 3),
(' ', 1),
('k', 0.5),
('j', 0.5),
('b', 0.5),
('k', 0.5),
('j', 1),
('x', 2.5),
('x', 0.5),
('b', 0.5),
('g', 0.5),
('f', 0.5),
('g', 0.5),
('x', 3),
('z', 0.5),
('x', 0.5),
('f', 0.5),
('g', 0.5),
('b', 0.5),
('j', 0.5),
('k', 1),
('.', 0.5),
('l', 0.5),
('k', 0.5),
('l', 0.5),
('.', 1),
('k', 2),
(' ', 1),
('l', 0.5),
('k', 0.5),
('j', 0.5),
('k', 0.5),
('l', 3),
(' ', 1),
('k', 0.5),
('j', 0.5),
('b', 0.5),
('j', 0.5),
('k', 1),
('b', 2),
(' ', 1),
('j', 0.5),
('b', 0.5),
('g', 0.5),
('b', 0.5),
('j', 3),
(' ', 1),
('.', 0.5),
('l', 0.5),
('k', 0.5),
('l', 0.5),
('.', 1),
('k', 2),
("'", 0.5),
('.', 0.5),
('l', 0.5),
('.', 0.5),
('j', 3),
(' ', 1),
("'", 0.5),
('.', 0.5),
('l', 0.5),
('.', 0.5),
('j', 3),
(' ', 1),
('k', 0.5),
('j', 0.5),
('b', 0.5),
('k', 0.5),
('j', 1),
('x', 2),
(' ', 1),
('b', 0.5),
('g', 0.5),
('f', 0.5),
('g', 0.5),
('x', 3)]
EXAMPLE_SONG_4 = [('j', 1.5),
('j', 0.5),
('j', 0.75),
('b', 0.25),
('g', 0.75),
('b', 0.25),
('j', 1),
('k', 1),
('j', 2),
('l', 1.5),
('l', 0.5),
('l', 0.75),
('k', 0.25),
('j', 0.75),
('b', 0.25),
('g', 1),
('k', 1),
('j', 2),
('j', 1.5),
('j', 0.5),
('j', 0.75),
('b', 0.25),
('g', 0.75),
('b', 0.25),
('j', 1),
('k', 1),
('j', 1),
('.', 1),
("'", 2),
('l', 2),
('.', 4),
('.', 1.5),
('l', 0.5),
('.', 0.75),
('l', 0.25),
('.', 0.75),
('k', 0.25),
('k', 1),
('j', 1),
('j', 2),
('l', 1.5),
('k', 0.5),
('l', 0.75),
('k', 0.25),
('l', 0.75),
('k', 0.25),
('j', 1),
('.', 1),
('.', 2),
('.', 1.5),
('l', 0.5),
('.', 0.75),
('l', 0.25),
('.', 0.75),
('k', 0.25),
('k', 1),
('j', 1),
('j', 1),
('.', 1),
("'", 2),
('l', 2),
('.', 4)]
EXAMPLE_SONG_5 = [('g', 0.5),
('g', 0.5),
('g', 0.5),
('g', 0.5),
('b', 0.5),
('b', 0.5),
('b', 0.5),
('g', 0.5),
('f', 0.5),
('f', 0.5),
('j', 0.5),
('f', 0.5),
('g', 2),
('b', 0.5),
('b', 0.5),
('j', 0.5),
('k', 0.5),
('j', 0.5),
('x', 0.5),
('b', 0.5),
('g', 0.5),
('f', 4),
('g', 0.5),
('g', 0.5),
('g', 0.5),
('g', 0.5),
('b', 0.5),
('g', 0.5),
('g', 0.5),
('g', 0.5),
('k', 0.5),
('k', 0.5),
('l', 0.5),
('k', 0.5),
('g', 1),
('g', 1),
('b', 0.5),
('b', 0.5),
('j', 0.5),
('k', 0.5),
('j', 0.5),
('x', 0.5),
('b', 0.5),
('g', 0.5),
('f', 5),
('j', 1),
('k', 1),
('l', 1),
('l', 0.5),
('.', 0.5),
('.', 0.5),
('j', 0.5),
('j', 1.5),
('g', 0.5),
('b', 0.5),
('g', 0.5),
('x', 0.5),
('f', 0.5),
('g', 1.5),
('g', 0.5),
('b', 0.5),
('b', 0.5),
('j', 0.5),
('k', 0.5),
('j', 0.5),
('.', 0.5),
('.', 0.5),
('l', 0.5),
('k', 0.5),
('k', 0.5),
('l', 0.5),
('.', 0.5),
("'", 1.5),
("'", 0.5),
('2', 0.5),
('2', 0.5),
('2', 0.5),
("'", 0.5),
("'", 0.5),
('.', 0.5),
('l', 0.5),
('.', 0.5),
('k', 0.5),
('k', 0.5),
('k', 0.5),
('j', 0.5),
('b', 1.5),
('f', 0.5),
('g', 0.5),
('j', 0.5),
('j', 0.5),
('g', 0.5),
('b', 0.5),
('k', 0.5),
('k', 0.5),
('j', 0.5),
('k', 2),
('l', 2),
('.', 4)]
EXAMPLE_SONG_6 = [('j', 2),
('k', 1),
('j', 2),
('j', 1),
('b', 2),
('g', 1),
('b', 0.5),
('g', 0.5),
('f', 2),
('g', 2),
('j', 1),
('.', 2),
('j', 1),
('b', 2),
('f', 1),
('j', 3),
('j', 2),
('k', 1),
('j', 2),
('j', 1),
('k', 2),
('l', 1),
('.', 1),
('k', 2),
('j', 2),
('g', 1),
('x', 2),
('g', 1),
('f', 2),
('x', 1),
('x', 3),
('.', 2),
("'", 1),
('.', 2),
('l', 1),
('.', 2),
("'", 1),
('.', 1),
('k', 2),
('j', 2),
('.', 1),
('2', 2),
('.', 1),
("'", 2),
('k', 1),
('j', 3),
('j', 1),
('k', 1),
('l', 1),
('.', 2),
('l', 1),
('k', 2),
('j', 1),
('j', 1),
('g', 2),
('g', 2),
('j', 1),
('x', 2),
('g', 1),
('f', 2),
('x', 1),
('x', 3)]
# These next few songs were contributed by Mike Sperry.
TWINKLE_TWINKLE = [('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 1),
(',', 1),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 1),
('v', 1),
('c', 2),
('m', 1),
('m', 1),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 2),
('m', 1),
('m', 1),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 2),
('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 1),
(',', 1),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 1),
('v', 1),
('c', 2)]
ABCS = [('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 1),
(',', 1),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 0.5),
('v', 0.5),
('v', 0.5),
('v', 0.5),
('c', 2),
('m', 1),
('m', 1),
('n', 2),
('b', 1),
('b', 1),
('v', 2),
('m', 1),
('m', 1),
('n', 2),
('b', 1),
('b', 1),
('v', 2),
('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 1),
(',', 1),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 1),
('v', 1),
('c', 2)]
BAH_BAH_BLACK_SHEEP = [('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 0.5),
(',', 0.5),
(',', 0.5),
(',', 0.5),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 1),
('v', 1),
('c', 2),
('m', 1),
('m', 0.5),
('m', 0.5),
('n', 1),
('n', 1),
('b', 1),
('b', 0.5),
('b', 0.5),
('v', 2),
('m', 1),
('m', 0.5),
('m', 0.5),
('n', 0.5),
('n', 0.5),
('n', 0.5),
('n', 0.5),
('b', 1),
('b', 0.5),
('b', 0.5),
('v', 2),
('c', 1),
('c', 1),
('m', 1),
('m', 1),
(',', 0.5),
(',', 0.5),
(',', 0.5),
(',', 0.5),
('m', 2),
('n', 1),
('n', 1),
('b', 1),
('b', 1),
('v', 1),
('v', 1),
('c', 2)]
HAPPY_BIRTHDAY = [('m', 0.75),
('m', 0.25),
(',', 1),
('m', 1),
('/', 1),
('.', 2),
('m', 0.75),
('m', 0.25),
(',', 1),
('m', 1),
('q', 1),
('/', 2),
('m', 0.75),
('m', 0.5),
('r', 1),
('w', 1),
('/', 1),
('.', 1),
(',', 1),
('n', 0.75),
('n', 0.25),
('b', 1),
('c', 1),
('v', 1),
('c', 3)]
# KNOWN MUSIC
SONGS = EXAMPLE_SONG_1, \
EXAMPLE_SONG_2, \
EXAMPLE_SONG_3, \
EXAMPLE_SONG_4, \
EXAMPLE_SONG_5, \
EXAMPLE_SONG_6, \
TWINKLE_TWINKLE, \
ABCS, \
BAH_BAH_BLACK_SHEEP, \
HAPPY_BIRTHDAY
def main():
print('''
MENU
====
(R)andom
(S)huffle
(P)lay
(K)eyboard
(A)uthor
(N)ew Song''')
while True:
key = msvcrt.getwch()
if key in 'rspk': print()
if key == 'r': menu_help(random.random)
if key == 's': menu_help(random.shuffle)
if key == 'p': select_song()
if key == 'k': menu_help()
if key == 'a': author()
if key == 'n': new_song()
def new_song():
while True:
sig = 0
for notes in NEW_SONG:
sig *= 2
for note in random.sample(notes, 2):
try:
winsound.Beep(get_frequency(note), int(100 / float(NS_SP)))
except:
pass
if notes[1] == note:
sig += 1
time.sleep((1.0 / 30) / NS_SP)
if not SHOW_FREQU:
print(sig + 1)
def select_song():
songs = (('EXAMPLE_SONG_1', EXAMPLE_SONG_1),
('EXAMPLE_SONG_2', EXAMPLE_SONG_2),
('EXAMPLE_SONG_3', EXAMPLE_SONG_3),
('EXAMPLE_SONG_4', EXAMPLE_SONG_4),
('EXAMPLE_SONG_5', EXAMPLE_SONG_5),
('EXAMPLE_SONG_6', EXAMPLE_SONG_6),
('TWINKLE_TWINKLE', TWINKLE_TWINKLE),
('ABCS', ABCS),
('BAH_BAH_BLACK_SHEEP', BAH_BAH_BLACK_SHEEP),
('HAPPY_BIRTHDAY', HAPPY_BIRTHDAY))
for index, data in enumerate(songs):
print('(%s) %s' % (index + 1, data[0].replace('_', ' ').lower().title()))
while True:
try:
index = int(input('\nSelect: '))
assert 0 < index <= len(songs)
play(songs[index - 1][1])
except:
pass
def menu_help(score=None):
if isinstance(score, list):
play(score)
elif score is random.random:
play_random()
elif score is random.shuffle:
play_songs()
keyboard()
def play(score):
for key, duration in score:
duration /= float(SPEED)
bd = int(duration * HOLD_RATIO * 1000)
sd = duration * (1 - HOLD_RATIO)
try:
winsound.Beep(get_frequency(key), bd)
except:
time.sleep(duration * HOLD_RATIO)
time.sleep(sd)
def keyboard():
while msvcrt.kbhit():
msvcrt.getwch()
while True:
try:
winsound.Beep(get_frequency(msvcrt.getwch()), 1000)
except:
pass
def get_frequency(key):
assert key[0] in KEYS
if SHOW_FREQU:
frequ = int((A4 * 2 ** ((KEYS.find(key[0]) + key.count('+') - (0 if key[0] == '-' else key.count('-')) + TRANSPOSE) / 12.0)) + 0.5)
print(frequ)
return frequ
else:
print(key, end=' ')
return int((A4 * 2 ** ((KEYS.find(key[0]) + key.count('+') - (0 if key[0] == '-' else key.count('-')) + TRANSPOSE) / 12.0)) + 0.5)
def play_random():
key = 'c'
RANDOM_KEYS = WHITE_KEYS
while not msvcrt.kbhit():
if random.random() < SWITCH_RATIO:
if RANDOM_KEYS is WHITE_KEYS:
RANDOM_KEYS = BLACK_KEYS
else:
RANDOM_KEYS = WHITE_KEYS
key = RANDOM_KEYS[random.randrange(len(RANDOM_KEYS))]
if random.random() < NEIGHBOR_RATIO:
index = RANDOM_KEYS.index(key[0]) + key.count('+') - key.count('-') + random.randrange(2) * 2 - 1
if index < 0:
key = RANDOM_KEYS[0] + '-' * (index * -1)
elif index >= len(RANDOM_KEYS):
key = RANDOM_KEYS[-1] + '+' * (index - len(RANDOM_KEYS) + 1)
else:
key = RANDOM_KEYS[index]
else:
key = RANDOM_KEYS[random.randrange(len(RANDOM_KEYS))]
if random.random() < ODD_RATIO:
if random.randrange(2):
key += '+'
else:
key += '-'
neg = key.count('-')
pos = key.count('+')
trans = pos - neg
if trans > 0:
key = key[0] + '+' * trans
elif trans < 0:
key = key[0] + '-' * (trans * -1)
else:
key = key[0]
winsound.Beep(get_frequency(key), 100)
def play_songs():
songs = list(SONGS)
while True:
random.shuffle(songs)
for song in songs:
play(song)
time.sleep(PAUSE_TIME)
def author():
for note in AUTHOR:
winsound.Beep(get_frequency(note), 1000)
time.sleep(1)
while msvcrt.kbhit():
msvcrt.getwch()
author = random.sample(AUTHOR, len(AUTHOR))
while not msvcrt.kbhit():
for note in author:
winsound.Beep(get_frequency(note), 100)
last_note = author[-1]
author = random.sample(AUTHOR, len(AUTHOR))
while author[0] == last_note:
author = random.sample(AUTHOR, len(AUTHOR))
if __name__ == '__main__':
main()
#/usr/bin/env蟒蛇3
导入msvcrt
随机输入
导入时间
导入winsound
#常数
键='zsxcfvgbnjmk，l./\'q2we4r5t6yu8i9op-[=]
A4=440
作者='.\'，zb'
新歌=（'vm'，
“zv”，
“cn”，
“vm”，
"xb",，
“cn”，
‘zv’）
#配置
NS_SP=1
速度=5
持有率=0.95
转置=0
暂停时间=2
SHOW_FREQU=False
#随机的
邻接比=0.9
奇数比=0.05
开关比=0.01
白键='zxcvbnm，./qwertyuiop[]
黑色按键='sfgjkl'245689-='
示例_SONG_1=[（'x'，1），
（'x'，2），
（'x'，1），
（'x'，1），
（'f'，1），
（'g'，1），
（'b'，2），
（'b'，1），
（'g'，2），
（'x'，1），
（'k'，2），
（'k'，1），
（'j'，2），
（'g'，1），
（'f'，5），
（'x'，1），
（'k'，2），
（'k'，1），
（'l'，1），
('.', 1),
("'", 1),
（'j'，2），
（'j'，1），
（'g'，2），
（'g'，1），
（'b'，2），
（'g'，1），
（'f'，1），
（'x'，1），
（'f'，1），
（'x'，5）]
示例_SONG_2=[（'j'，2），
（'j'，1），
（'j'，2），
('.', 1),
（'b'，2），
（'j'，1），
（'b'，1），
（'g'，1.5），
（'f'，0.5），
（'g'，2），
（'g'，1），
（'g'，1），
（'f'，1），
（'x'，1），
（'f'，6），
（'j'，2），
（'j'，1），
（'j'，2），
('.', 1),
（'b'，2），
（'j'，1），
（'b'，1），
（'g'，1.5），
（'f'，0.5），
（'g'，2），
（'g'，1），
（'f'，1），
（'x'，1），
（'f'，1），
（'x'，5），
（'x'，1），
（'k'，2），
（'k'，1），
（'l'，3），
（'l'，2），
("'", 1),
('.', 2),
('.', 1),
('.', 2),
('.', 1),
('2', 1),
("'", 1),
('.', 1),
（'j'，6），
（'j'，2），
（'j'，1），
（'j'，2），
('.', 1),
（'b'，2），
（'j'，1），
（'b'，1），
（'g'，1.5），
（'f'，0.5），
（'g'，2），
（'g'，1），
（'f'，1），
（'x'，1），
（'f'，1），
（'x'，6）]
示例_SONG_3=[（''，1），
（'x'，0.5），
（'f'，0.5），
（'g'，0.5），
（'b'，0.5），
（'j'，1），
('.', 3),
('.', 0.5),
（'l'，0.5），
（'k'，0.5），
（'l'，0.5），
（'j'，3），
(' ', 1),
（'k'，0.5），
（'j'，0.5），
（'b'，0.5），
（'k'，0.5），
（'j'，1），
（'x'，3），
（'f'，0.5），
（'g'，0.5），
#! /usr/bin/env python3
import math
import wave
################################################################################
class Waves:
BUFF = 1 << 20
MAX = 127
MID = 128
def __init__(self, fps):
self.__fps = fps
self.__data = []
@staticmethod
def __sin(ratio):
return math.sin(ratio * math.pi * 2)
@staticmethod
def __squ(ratio):
return 1 - ratio // 0.5 * 2
@staticmethod
def __tri(ratio):
if ratio < 0.25:
return ratio / 0.25
elif ratio < 0.75:
return 1 - 4 * (ratio - 0.25)
else:
return (ratio - 0.75) * 4 - 1
@staticmethod
def __saw(ratio):
return ratio / 0.5 - ratio // 0.5 * 2
def add_sine(self, freq, amp):
self.__add(freq, amp, self.__sin)
def add_square(self, freq, amp):
self.__add(freq, amp, self.__squ)
def add_triangle(self, freq, amp):
self.__add(freq, amp, self.__tri)
def add_sawtooth(self, freq, amp):
self.__add(freq, amp, self.__saw)
def __add(self, freq, amp, func):
rate = int(self.__fps / freq)
self.__data.extend(func(pos / rate) * amp for pos in range(rate))
def interpolate_sine(self, freq_a, freq_b, amp_a, amp_b, seconds):
self.__lerp(freq_a, freq_b, amp_a, amp_b, seconds, self.add_sine)
def interpolate_square(self, freq_a, freq_b, amp_a, amp_b, seconds):
self.__lerp(freq_a, freq_b, amp_a, amp_b, seconds, self.add_square)
def interpolate_triangle(self, freq_a, freq_b, amp_a, amp_b, seconds):
self.__lerp(freq_a, freq_b, amp_a, amp_b, seconds, self.add_triangle)
def interpolate_sawtooth(self, freq_a, freq_b, amp_a, amp_b, seconds):
self.__lerp(freq_a, freq_b, amp_a, amp_b, seconds, self.add_sawtooth)
def __lerp(self, freq_a, freq_b, amp_a, amp_b, seconds, func):
samples = int(seconds * (freq_a + freq_b) / 2)
for position in range(samples):
b = position / samples
a = 1 - b
func(freq_a * a + freq_b * b, amp_a * a + amp_b * b)
def write(self, name):
file = wave.open(name, 'wb')
file.setnchannels(1)
file.setsampwidth(1)
file.setframerate(self.__fps)
self.__writeframes(file)
file.close()
def __writeframes(self, file):
parts = len(self.__data) // self.BUFF
parts += bool(len(self.__data) % self.BUFF)
for part in range(parts):
index = part * self.BUFF
buff = self.__data[index:index+self.BUFF]
byte = self.__transform(buff)
file.writeframes(byte)
@classmethod
def __transform(cls, buff):
return bytes(int(pos * cls.MAX) + cls.MID for pos in buff)
@classmethod
def add(cls, *waves):
sounds = len(waves)
assert sounds > 1, 'Must have two or more waves to add!'
fps = waves[0].__fps
for wave_instance in waves[1:]:
assert wave_instance.__fps == fps, 'Framerate is not the same!'
result = cls(fps)
package = map(lambda wave_instance: wave_instance.__data, waves)
result.__data = [sum(sound) / sounds for sound in zip(*package)]
return result
def __add__(self, other):
return Waves.add(self, other)
def __mul__(self, other):
result = Waves(self.__fps)
result.__data = [value * other for value in self.__data]
return result
def __imul__(self, other):
self.__data = [value * other for value in self.__data]
return self
def append(self, other):
assert self.__fps == other.__fps, 'Framerate is not the same!'
self.__data.extend(other.__data)
def average_amp(self):
total = count = 0
for value in self.__data:
total += abs(value)
count += 1
return total / count
def adjust_amp(self, value):
self *= value / self.average_amp()
################################################################################
def test_1():
test = Waves(96000)
# Standard Test
test.interpolate_sine(440, 440, 0.1, 0.1, 1)
test.interpolate_square(440, 440, 0.1, 0.1, 1)
test.interpolate_triangle(440, 440, 0.1, 0.1, 1)
# Frequency Test
test.interpolate_sine(440, 880, 0.1, 0.1, 1)
test.interpolate_square(440, 880, 0.1, 0.1, 1)
test.interpolate_triangle(440, 880, 0.1, 0.1, 1)
# Amplitude Test
test.interpolate_sine(440, 440, 0.1, 0.5, 1)
test.interpolate_square(440, 440, 0.1, 0.5, 1)
test.interpolate_triangle(440, 440, 0.1, 0.5, 1)
# Frequency & Amplitude Test
test.interpolate_sine(440, 880, 0.1, 0.5, 1)
test.interpolate_square(440, 880, 0.1, 0.5, 1)
test.interpolate_triangle(440, 880, 0.1, 0.5, 1)
# Finish Test
test.write('test_1.wav')
def test_2():
# Addition, Multiplication, & Append Test
test = Waves(96000)
# Sine -> Square
a = Waves(96000)
a.interpolate_sine(440, 440, 0.5, 0.0, 5)
a = a * (0.2 / a.average_amp())
b = Waves(96000)
b.interpolate_square(440, 440, 0.0, 0.5, 5)
b = b * (0.2 / b.average_amp())
c = a + b
test.append(c)
# Square -> Triangle
a = Waves(96000)
a.interpolate_square(440, 440, 0.5, 0.0, 5)
a = a * (0.2 / a.average_amp())
b = Waves(96000)
b.interpolate_triangle(440, 440, 0.0, 0.5, 5)
b = b * (0.2 / b.average_amp())
c = a + b
test.append(c)
# Triangle -> Sawtooth
a = Waves(96000)
a.interpolate_triangle(440, 440, 0.5, 0.0, 5)
a = a * (0.2 / a.average_amp())
b = Waves(96000)
b.interpolate_sawtooth(440, 440, 0.0, 0.5, 5)
b = b * (0.2 / b.average_amp())
c = a + b
test.append(c)
# Sawtooth -> Sine
a = Waves(96000)
a.interpolate_sawtooth(440, 440, 0.5, 0.0, 5)
a = a * (0.2 / a.average_amp())
b = Waves(96000)
b.interpolate_sine(440, 440, 0.0, 0.5, 5)
b = b * (0.2 / b.average_amp())
c = a + b
test.append(c)
# Finish Test
test.write('test_2.wav')
def test_3():
# Test Sample Mixing
sound = Waves(96000)
sample_1 = Waves(96000)
sample_1.interpolate_sine(220, 440, 0.5, 0.5, 10)
sample_2 = Waves(96000)
sample_2.interpolate_sine(330, 660, 0.2, 0.2, 10)
sample_3 = Waves(96000)
sample_3.interpolate_sine(440, 880, 0.2, 0.2, 10)
sound.append(sample_1)
sound.append(sample_1 + sample_2)
sound.append(sample_1 + sample_2 + sample_3)
sound.write('test_3.wav')
def test_4():
# Test Sound of Waveforms
sound = Waves(96000)
# Sine
sample = Waves(96000)
sample.interpolate_sine(440, 440, 0.1, 0.1, 2)
sample.adjust_amp(0.2)
sound.append(sample)
# Square
sample = Waves(96000)
sample.interpolate_square(440, 440, 0.1, 0.1, 2)
sample.adjust_amp(0.2)
sound.append(sample)
# Triangle
sample = Waves(96000)
sample.interpolate_triangle(440, 440, 0.1, 0.1, 2)
sample.adjust_amp(0.2)
sound.append(sample)
# Sawtooth
sample = Waves(96000)
sample.interpolate_sawtooth(440, 440, 0.1, 0.1, 2)
sample.adjust_amp(0.2)
sound.append(sample)
# Finish Test
sound.write('test_4.wav')
################################################################################
if __name__ == '__main__':
test_1()
test_2()
test_3()
test_4()
from winsound import Beep
# Beep(frequency, duration) Frequency in Hertz, duration in ms
Beep(480,200)
Beep(1568,200)
Beep(1568,200)
Beep(1568,200)
Beep(740,200)
Beep(784,200)
Beep(784,200)
Beep(784,200)
Beep(370,200)
Beep(392,200)
Beep(370,200)
Beep(392,200)
Beep(392,400)
Beep(196,400)