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From: Michael C. <ch...@mc...> - 2010-05-16 18:55:31
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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 ... ? |