62 lines
1.8 KiB
Python
Executable File
62 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
# ============================================================================
|
|
# This script allows you to play music using a chorizo (or whatever food you
|
|
# like) keyboard ! See README for more info and links.
|
|
|
|
# As all the other scripts in this repository, I release it under a very
|
|
# permissive license. To make a long story short : do whatever you want with
|
|
# this script (but try to have fun :), I don't mind. It would be cool to quote
|
|
# the origin of the script if you reuse it, but you don't have to. I'd like to
|
|
# be noticed of what you did cool with it (if you think it's worth). :)
|
|
# Ah, I almost forgot : If by chance we ever meet and you think this script is
|
|
# worth, you can buy me a soda :)
|
|
#
|
|
# Phyks
|
|
# =============================================================================
|
|
|
|
# TODO
|
|
|
|
import wave
|
|
import math
|
|
import pyaudio
|
|
import sys
|
|
|
|
|
|
# Params
|
|
# ======
|
|
nChannels = 1 # Mono
|
|
sample_size = 2 # Size of a sample -> 1 = 8 bits
|
|
framerate = 44100 # Sampling frequency
|
|
length = 2 # Length in seconds
|
|
frequency = 440
|
|
level = 1
|
|
# =====
|
|
|
|
if level < 0.0 or level > 1.0:
|
|
sys.exit(1)
|
|
|
|
filename = "temp"
|
|
w = wave.open(filename, 'w')
|
|
|
|
# Computed params
|
|
nFrames = int(length*framerate)
|
|
max_amplitude = int(2**(sample_size * 8 - 1) - 1)
|
|
amplitude = max_amplitude*level
|
|
|
|
w.setparams((nChannels, sample_size, framerate, nFrames,
|
|
'NONE', 'not compressed'))
|
|
|
|
sine_wave = []
|
|
for i in range(min(framerate, nFrames)):
|
|
sine_wave.append(int(max_amplitude +
|
|
amplitude*math.sin(2*math.pi*frequency*i/framerate)))
|
|
|
|
for i in range(nFrames):
|
|
sine_wave = int(amplitude*math.sin(2*math.pi*frequency*i/framerate))
|
|
data = wave.struct.pack('h', sine_wave)
|
|
# ^ h is for "short" so each value can go from -2**15 to 2**15
|
|
w.writeframesraw(data)
|
|
|
|
w.close()
|