Re: [LAU] Strange sound file

Dan S wrote:
> Hi -
>
> If you look at the two outputs below you'll see that newmessage.wav
> has some extra info embedded in it - possibly newmessage.wav is
> actually a BWF-format file?
> http://en.wikipedia.org/wiki/Broadcast_Wave_Format
>
> Dan
>
>
> sndfile-info *.wav
> Version : libsndfile-1.0.19
> ========================================
> File : newmessage.wav
> Length : 23994
> RIFF : 23986
> WAVE
> fmt : 16
> Format : 0x1 => WAVE_FORMAT_PCM
> Channels : 2
> Sample Rate : 44100
> Block Align : 4
> Bit Width : 16
> Bytes/sec : 176400
> data : 23868
> LIST : 74
> INFO
> ISFT : Sonic Foundry Sound Forge 6.0
> IENG :
> ICRD : 2005-05-16
> End
>
> ----------------------------------------
> Sample Rate : 44100
> Frames : 5967
> Channels : 2
> Format : 0x00010002
> Sections : 1
> Seekable : TRUE
> Duration : 00:00:00.135
> Signal Max : 32768 (0.00 dB)
>
> ========================================
> File : voicemail.wav
> Length : 57536
> RIFF : 57528
> WAVE
> fmt : 16
> Format : 0x1 => WAVE_FORMAT_PCM
> Channels : 1
> Sample Rate : 44100
> Block Align : 2
> Bit Width : 16
> Bytes/sec : 88200
> data : 57492
> End
>
> ----------------------------------------
> Sample Rate : 44100
> Frames : 28746
> Channels : 1
> Format : 0x00010002
> Sections : 1
> Seekable : TRUE
> Duration : 00:00:00.652
> Signal Max : 32768 (0.00 dB)
>
> ========================================
> Total Duration : 00:00:00.787
>
>
>

But apart from the advanced metadata, there's a much more fundamental
difference: the first file listed above is stereo, the second is mono...

Matthijs
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Received on Mon Aug 24 20:15:03 2009