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POHow to get wave file properties using Python3 on Win32 environment?
 

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  1. POHow to get wave file properties using Python3 on Win32 environment?
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    <p>1st I tried this:</p> <pre><code>import wave #read wave file I'm trying to open def getWaveInfo(): try: #get the list of wave file attributes im interested in (channels, famerate, frames number...) w = wave.open('wave.wav','rb') print("Number of channels is: ", w.getnchannels()) print("Sample width in bytes is: ", w.getsampwidth()) print("Framerate is: ", w.getframerate()) print("Number of frames is: ", w.getnframes()) except: print(wave.error) </code></pre> <p>Still got nothing. Then I changed into this:</p> <pre><code>import wave #read wave file I'm trying to open def getWaveInfo(): #get the list of wave file attributes im interested in (channels, famerate, frames number...) w = wave.open('wave.wav','rb') print("Number of channels is: ", w.getnchannels()) print("Sample width in bytes is: ", w.getsampwidth()) print("Framerate is: ", w.getframerate()) print("Number of frames is: ", w.getnframes()) if __main__ == '__main__': getWaveInfo() </code></pre> <p>Still nothing happens! I even used the C:\python wave.py > test.txt and the file is blank!</p> <p>All the code above is commented already. Any insights anyone on why this is not working? I'm using Windows 7 and Wing IDE 101 V5. Python 3.3.2</p> <p>I don't know what else to do to make it work... already debugged in Wings IDE and after the wave import nothing else works.</p> <p>Now my source code is like this:</p> <pre><code>import wave def getWaveInfo(): try: w = wave.open('audio.wav','rb') print("Number of channels is: ", w.getnchannels()) print("Sample width in bytes is: ", w.getsampwidth()) print("Framerate is: ", w.getframerate()) print("Number of frames is: ", w.getnframes()) except: print(w.error) </code></pre> <p>And I finally have raised an error(!): </p> <pre><code>Traceback (most recent call last): File "c:\audio.py", line 1, in &lt;module&gt; builtins.ImportError: bad magic number in 'wave': b'\x03\xf3\r\n' </code></pre> <p>My python filename was <code>"wave.py"</code> but now I changed it to <code>"audio.py"</code>. Also changed the audio wave file from <code>"wave.wav"</code> to <code>"audio.wav"</code></p> <p>Changed my code a little bit more and now its like this:</p> <pre><code>from wave import * def getWaveInfo(): w = wave.open('audio.wav','rb') print("Number of channels is: ", w.getnchannels()) print("Sample width in bytes is: ", w.getsampwidth()) print("Framerate is: ", w.getframerate()) print("Number of frames is: ", w.getnframes()) if __name__ == "__main__": getWaveInfo() </code></pre> <p>Now I have the error:</p> <pre><code>`Traceback (most recent call last): File "C:\Program Files (x86)\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 11, in &lt;module&gt; File "C:\Program Files (x86)\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 4, in getWaveInfo #print 'Exiting sandbox process' builtins.NameError: global name 'wave' is not defined` </code></pre>
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    1. COWhat is not working? What error do you get? And which `wave` library are you using?
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      1. POHow to get wave file properties using Python3 on Win32 environment?
      1. USpoke
    2. COI'm running this code from my C:\ drive and with the wave file in the same level of hierarchy of this code. Of this py file. Which is wave.py. Nothing happens! Wing doesn't even blink! Only think I get in Wing IDE python shell is: "[evaluate wave.py]" Did my best and got all codes and examples from documentation: http://docs.python.org/3.3/library/wave.html?highlight=wave#module-wave
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      1. POHow to get wave file properties using Python3 on Win32 environment?
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    3. COTry replacing `wave.error` with `print(wave.error)` so that you actually see the error. Or just completely remove the `try` block for now.
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      1. POHow to get wave file properties using Python3 on Win32 environment?
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