[SoX-users] Reading a broken WAV file?

[Michael C. <ch...@mc...>]

I have a recording of a 3 1/2 hour concert in two files, say L.wav and R.wav
(the remnants of an Ardour session that seems to have gone very wrong).

Running SoXi on one gives:

Channels: 1
rate: 96000
Precision: 24-bit
Duration: 00:19:19.21 = 111284170 samples
Encoding: 32-bit FP PCM

It has 4740104032 bytes (c.4GB).


Running "sox -M L.wav R.wav stereo.wav"

gives a file of only 890273418 bytes (c.800MB).
but with a SoXi output identical to the above (except "channels=2").

(That is the merged file is 1/5 of the size of either iinput file at 19 
minutes. But either original file should be ten times longer (say 200
minutes) but only reports (and acts as if) 19 minutes.)

SoX reports "sox wav: wave header missing FmtExt chunk"

I have put the first KB of an input file at <http://mchapman.com/L.wav>

I am hoping this is a header problem and (that looking at the file sizes) I
do have a recording.
Before resorting to a Hex editor (panic!) I thought I'd ask if any expert can
suggest a simple cure?

Michael

BTW "sox -M L.wav R.wav stereo.caf" gave 19 minutes of white noise, but
as the input files are obviously broken that is unlikely to be a SoX problem 
... ?