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My phone records in Qualcomm PureVoice (blech!).

I have nothing, including mplayer and VLC, that plays that.

I'd like to be able to convert them batchwise (so I can grab them via bluetooth) to mp3 (or any other format) on my Mac.

Thoughts?

Here's a sample file to play with. Here is that file converted to mp3 using Online Convert for reference.

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  • 1
    Can you post a link to an example .qcp file for me to work with?
    – Rob Cowell
    Jan 21, 2011 at 16:51
  • That file requires login to download.
    – stib
    Nov 14, 2011 at 10:59
  • Updated with links to good files.
    – Tim Visher
    Nov 16, 2011 at 14:31

2 Answers 2

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ffmpeg will do it. It can read qcp files, and it works from the command line so batching is easy:

cd /your/directory/of/qcp/files/
for i in *.qcp; do
   ffmpeg -i "$i" "${i/qcp/mp3}" 
done

You could tweak the audio settings like setting your bitrate to 128k with "-ab 128k" or "-ar 44100" and suchlike, or you could change the file type by changing "mp3" to whatever you need.

If you're a'feared of compiling ffmpeg and muckign around with the terminal you could try MPEG Streamclip, it might do it. I can't download the sample so I can't test it.

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3
  • Have you tested this? For me at this version gist.github.com/1367773 it reports that it's an unknown format.
    – Tim Visher
    Nov 15, 2011 at 17:50
  • I'm having the same results as Tim. Unknown file format.
    – snipe
    Jan 10, 2012 at 18:46
  • Finally got ffmpeg through brew working and this now works. version info
    – Tim Visher
    Jan 19, 2012 at 1:06
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Latest VLC does know how to play .qcp files. You can then use the wizard to export as something else. Me, I'd like to find something that will just give it the proper wrapper. You can change the filename extension to .wav, and VLC will still open it up. But QuickTime Player 7 Pro won't... It's just raw samples, no header. Apparently it's 16bit, 8KHz sample rate mono. But... big endian or little? It should just need a proper header so that QuickTime will see it as a normal .wav.

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2
  • Version 0.9.8 Grishenko (Intel) still seems to be unable to play, did you test this?
    – Tim Visher
    Nov 15, 2011 at 17:53
  • VLC (latest) crashes when I try to open a qcp file
    – snipe
    Jan 10, 2012 at 18:45

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