def startPlaying(self, frequency=440.0, amplitude=0.5, framerate=48000, duration=60, bufsize=1024):
if self.isWindows:
while True:
try:
import winsound
winsound.Beep(int(frequency), duration * 1000)
except AttributeError:
pass
if self.play == False:
break
else:
# create stream
channels = ((wb.sine_wave(frequency, amplitude=amplitude, framerate=framerate),),)
nframes = framerate * duration
while self.play:
try:
samples = wb.compute_samples(channels, nframes)
self.audioStream = MyStream(self.audioDev.open(format=self.audioDev.get_format_from_width(2), channels=1, rate=framerate, output=True))
wb.write_wavefile(self.audioStream, samples, nframes=nframes, sampwidth=2, framerate=framerate, bufsize=bufsize)
except AttributeError:
pass
else:
self.audioStream.stopIt()
self.audioDev.terminate()
return
def play_pitch(pitch, ms):
frequency = pitch_to_frequency(pitch)
num_channels = 1
bit_rate = 16
sample_rate = 44100
volume = 1
data_encoding = "signed"
sox_output_type = "raw"
channels = ((wavebender.sine_wave(frequency),),)
samples = wavebender.compute_samples(channels, (sample_rate/1000) * ms )
wavebender.write_pcm(open(tempfile.gettempdir() + "/pitch", 'w+'), samples, framerate=sample_rate)
subprocess.call(["play", "-e", data_encoding, "-r", str(sample_rate), "-v", str(volume), "-t", sox_output_type, "-c", str(num_channels), "-b", str(bit_rate), "-"], stdin=open(tempfile.gettempdir() + "/pitch"))
def startPlaying(self,
frequency=440.0,
amplitude=0.5,
framerate=48000,
duration=60,
bufsize=1024):
if self.isWindows:
while True:
try:
import winsound
winsound.Beep(int(frequency), duration * 1000)
except AttributeError:
pass
if self.play == False:
break
else:
# create stream
channels = ((wb.sine_wave(frequency,
amplitude=amplitude,
framerate=framerate), ), )
nframes = framerate * duration
while self.play:
try:
samples = wb.compute_samples(channels, nframes)
self.audioStream = MyStream(
self.audioDev.open(
format=self.audioDev.get_format_from_width(2),
channels=1,
rate=framerate,
output=True))
wb.write_wavefile(self.audioStream,
samples,
nframes=nframes,
sampwidth=2,
framerate=framerate,
bufsize=bufsize)
except AttributeError:
pass
else:
self.audioStream.stopIt()
self.audioDev.terminate()
return
def construct(self):
"""Given a Wave object, produces a soundwave which can be written to
file.
Global vars:
possible_shapes: List of strings
used to keep track of what kinds of waves can be constructed in a
way which can be queried by other modules.
Internal vars:
waveform:
The audible protion of the wave.
"""
if self.shape == "sine":
waveform = wb.sine_wave(self.frequency, self.sample_rate, self.amplitude)
if self.shape == "square":
waveform = wb.square_wave(self.frequency, self.sample_rate, self.amplitude)
if self.shape == "damped":
waveform = wb.damped_wave(self.frequency, self.sample_rate, self.amplitude)
if self.shape == "white_noise":
waveform = wb.white_noise(self.amplitude)
i = -1 # A counter to keep position in the waveform.
before_postwait = self.total_ticks - self.postwait
while True:
i += 1
cursor = i % self.total_ticks
# Cursor here represents the position in the waveform
if cursor <= self.prewait:
yield 0
elif self.prewait < cursor <= before_postwait:
yield waveform.next()
else:
yield 0
def generate_wave(frequency=BEEP_FREQ, framerate=44100, amplitude=1, duration=0.03):
return islice(sine_wave(frequency, framerate, amplitude), duration*framerate)
# Written 25/6/14 by dh4gan
# This script tests the wavebender package
# Found at https://github.com/zacharydenton/wavebender
# This is my hack of the binaural.py example file
from wavebender import sine_wave, compute_samples, write_wavefile
channels = ((sine_wave(170.0, amplitude=0.1),),
(sine_wave(178.0, amplitude=0.1),))
samples = compute_samples(channels)
write_wavefile("test.wav", samples)
