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Music Fan · 28th March 2014, 18:22

I recorded ac3 5.1 a few years ago with the optical input of an Audigy 2 ZS and its original drivers on Windows XP.
I had to ;
-tick "enable bit accurate recording" in Device Controls
-put REC on SPDIF in Creative's volume window
-put REC's volume on 0db (50 %)
-record in stereo 48/16 with Cool Edit Pro (became Adobe Audition) ; of course, it's better to begin recording before to play the stream to record and finish after recording to avoid missing parts
-save in Windows PCM (Wav extension)
-use BeSplit to clean the stream and create an .ac3 file with this command ;

Code:

C:\BeSplit.exe -core( -input "F:\ac3 file 448k.wav" -prefix P:\track -type ddwav -fix )

P:\track will become P:\track01.ac3
It also removes the potential blank parts at the beginning and end (if done how I suggested with Cool Edit Pro).

eac3to can maybe also clean the stream.
Anyway eac3to can be used after BeSplit to remove the possible dialog norm (IIRC BeSplit didn't do this) with this simple command ;

Code:

"C:\Program Files\eac3to\eac3to.exe" "P:\input file.ac3" "F:\output file.ac3"

This also works to remove dialog norm of dts files (replace .ac3 by .dts).

28th March 2014, 18:22	#23 \| Link
Music Fan Registered User Join Date: May 2009 Location: Belgium Posts: 1,744	I recorded ac3 5.1 a few years ago with the optical input of an Audigy 2 ZS and its original drivers on Windows XP. I had to ; -tick "enable bit accurate recording" in Device Controls -put REC on SPDIF in Creative's volume window -put REC's volume on 0db (50 %) -record in stereo 48/16 with Cool Edit Pro (became Adobe Audition) ; of course, it's better to begin recording before to play the stream to record and finish after recording to avoid missing parts -save in Windows PCM (Wav extension) -use BeSplit to clean the stream and create an .ac3 file with this command ; Code: C:\BeSplit.exe -core( -input "F:\ac3 file 448k.wav" -prefix P:\track -type ddwav -fix ) P:\track will become P:\track01.ac3 It also removes the potential blank parts at the beginning and end (if done how I suggested with Cool Edit Pro). eac3to can maybe also clean the stream. Anyway eac3to can be used after BeSplit to remove the possible dialog norm (IIRC BeSplit didn't do this) with this simple command ; Code: "C:\Program Files\eac3to\eac3to.exe" "P:\input file.ac3" "F:\output file.ac3" This also works to remove dialog norm of dts files (replace .ac3 by .dts). Last edited by Music Fan; 28th March 2014 at 19:37.