In [1]:

    

import math
import struct
import pyaudio
import wave

CHUNK = 1024
CHANNELS = 1
RATE = 44100
FORMAT = pyaudio.paInt16
WIDTH = 2

FILENAME = "tone.wav"

def play_frames(frames, chunk, channels, framerate, sample_width):
    p = pyaudio.PyAudio()
    
    stream = p.open(format=p.get_format_from_width(sample_width),
                    channels=channels,
                    rate=framerate,
                    output=True)
    for frame in frames:
        stream.write(frame)
        
    stream.stop_stream()
    stream.close()
    p.terminate()

def write_frames(frames, filename):
    wav_file=wave.open(filename,"w")
    sampwidth = 2
    comptype= "NONE"
    compname= "not compressed"
    wav_file.setparams((CHANNELS, sampwidth, RATE, len(frames), comptype, compname))
    for s in frames:
        wav_file.writeframes(s)
    wav_file.close()

def play_file(filename):
    CHUNK = 1024
    
    wf = wave.open(filename, 'rb')
    
    p = pyaudio.PyAudio()
    
    stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
                    channels=wf.getnchannels(),
                    rate=wf.getframerate(),
                    output=True)
    
    data = wf.readframes(CHUNK)
    
    while data != '':
        stream.write(data)
        data = wf.readframes(CHUNK)
    
    stream.stop_stream()
    stream.close()
    
    p.terminate()


    

In [2]:

    

avgs = [np.median(l) for l in list(quietnet.chunks(freq_samples, FRAME_LENGTH))]

setup_graph(title='Frequency f Interest over Time', x_label='Time', y_label='Frequency')
plot(avgs, 'grey')
plot(avgs, '.')


    

    




---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-2-c8d8fe51ae9f> in <module>()
----> 1 avgs = [np.median(l) for l in list(quietnet.chunks(freq_samples, FRAME_LENGTH))]
      2 
      3 setup_graph(title='Frequency f Interest over Time', x_label='Time', y_label='Frequency')
      4 plot(avgs, 'grey')
      5 plot(avgs, '.')

NameError: name 'quietnet' is not defined

In [5]:

    

a = '\xae'


    

In [6]:

    

16 * 16


    

    
Out[6]:





256

In [7]:

    

import pyaudio
import wave
WAVE_OUTPUT_FILENAME = "wave.out"
FORMAT = pyaudio.paInt16
p = pyaudio.PyAudio()


wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(1)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(buffers))
wf.close()


    

    




---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-7-3760e998dc19> in <module>()
     10 wf.setsampwidth(p.get_sample_size(FORMAT))
     11 wf.setframerate(RATE)
---> 12 wf.writeframes(b''.join(buffers))
     13 wf.close()

NameError: name 'buffers' is not defined

In [9]:

    

44 * 5 * 200


    

    
Out[9]:





44000

In [ ]: