MediaPlayer 9 on Win XP and playing .VOX sound files


Chuck Smith

Have a bunch of sound files recorded in the .vox format.
Try to play on latest Windows Media Player 9 for WinXp
and get:

"Error# C00D11CD"
"Sorry, no more help is available for this problem at
this time."

Am I doing something wrong?
Mar 14, 2014
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VOX file uses Dialogic ADPCM codec, especially for saving human speech audio, saves digitized voice data sampled at a low rate; enables the audio data size to be small while still maintaining clarity. It will only save mono 16-bit audio, and like other ADPCM formats, it compresses to 4-bits/sample (for a 4:1 ratio).

The sample rate of Dialogic ADPCM can be 6kHz or 8kHz. 8kHz is more common. There is no header in VOX file to specify this value, user should specify it or asume it to be 8kHz.

VOX format is outdeted and not in wild use, most popular player software(Windows Media Player, Quick Time, iTunes, etc) and devices(iPod, iPhone, Zune, etc) do not support this format.

To play VOX files in these software or devices, you need convert them to popular formats such as WAV, MP3, M4A, etc with some professional software like Faasoft Video Converter.

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