audio - how to play wav file in python?

Question

I tried pygame for playing wav file like this:

import pygame
pygame.init()

pygame.mixer.music.load("mysound.wav")
pygame.mixer.music.play()
pygame.event.wait()

but It change the voice and I don't know why! I read this link solutions and can't solve my problem with playing wave file!

for this solution I dont know what should I import?

s = Sound() 
s.read('sound.wav') 
s.play()

and for this solution /dev/dsp dosen't exist in new version of linux :

from wave import open as waveOpen
from ossaudiodev import open as ossOpen
s = waveOpen('tada.wav','rb')
(nc,sw,fr,nf,comptype, compname) = s.getparams( )
dsp = ossOpen('/dev/dsp','w')
try:
  from ossaudiodev import AFMT_S16_NE
except ImportError:
  if byteorder == "little":
    AFMT_S16_NE = ossaudiodev.AFMT_S16_LE
  else:
    AFMT_S16_NE = ossaudiodev.AFMT_S16_BE
dsp.setparameters(AFMT_S16_NE, nc, fr)
data = s.readframes(nf)
s.close()
dsp.write(data)
dsp.close()

and when I tried pyglet It give me this error:

import pyglet

music = pyglet.resource.media('mysound.wav')
music.play()

pyglet.app.run()
--------------------------

nima@ca005 Desktop]$ python play.py
Traceback (most recent call last):
  File "play.py", line 4, in <module>
    music = pyglet.resource.media('mysound.wav')
  File "/usr/lib/python2.7/site-packages/pyglet/resource.py", line 587, in media
    return media.load(path, streaming=streaming)
  File "/usr/lib/python2.7/site-packages/pyglet/media/__init__.py", line 1386, in load
    source = _source_class(filename, file)
  File "/usr/lib/python2.7/site-packages/pyglet/media/riff.py", line 194, in __init__
    format = wave_form.get_format_chunk()
  File "/usr/lib/python2.7/site-packages/pyglet/media/riff.py", line 174, in get_format_chunk
    for chunk in self.get_chunks():
  File "/usr/lib/python2.7/site-packages/pyglet/media/riff.py", line 110, in get_chunks
    chunk = cls(self.file, name, length, offset)
  File "/usr/lib/python2.7/site-packages/pyglet/media/riff.py", line 155, in __init__
    raise RIFFFormatException('Size of format chunk is incorrect.')
pyglet.media.riff.RIFFFormatException: Size of format chunk is incorrect.
AL lib: ReleaseALC: 1 device not closed

Answer 1

You can use PyAudio. An example here on my Linux it works:

#!usr/bin/env python  
#coding=utf-8  

import pyaudio  
import wave  

#define stream chunk   
chunk = 1024  

#open a wav format music  
f = wave.open(r"/usr/share/sounds/alsa/Rear_Center.wav","rb")  
#instantiate PyAudio  
p = pyaudio.PyAudio()  
#open stream  
stream = p.open(format = p.get_format_from_width(f.getsampwidth()),  
                channels = f.getnchannels(),  
                rate = f.getframerate(),  
                output = True)  
#read data  
data = f.readframes(chunk)  

#play stream  
while data:  
    stream.write(data)  
    data = f.readframes(chunk)  

#stop stream  
stream.stop_stream()  
stream.close()  

#close PyAudio  
p.terminate()