How to remaster stereo to 5.1?

[pekes]

Has anyone an idea which program does this?

[TRILIGHT]

You can't just take a stereo file and turn it into 5.1 digital. The stream information simply isn't there. There are six discrete channels of audio in a 5.1 stream.

[jeffnoone]

This can't be done, as the info to separate out the right rear, left rear, and center front are not in a 2 channel stereo signal. THis applies to analog 2 channel stereo that has surround encoding also.

2 channel stereo with surround encoding does have info for front center and (joint) rear. I'm not sure whether these 4 channels can be abstracted separately, but I think BeSweet may be able to do this


If you have a 2 channel stereo analog source with surround encoding, you can feed this to SoftEncode, remember to tick Surround in the Softencode setup. YOu end with a 2:0 AC3 digital file with Surround preserved. The advantage is that this is much smaller thatn the analog (.wav) source

Another thing I have come across in this general area is where people have taken original 4 or 6 track tape, and then converted these to 4 or 6 channel digital material, using either Softencode to create .ac3 files or Surcode DTS to create .dts files. Note that these originals do have 4 or 6 original channels to allow authoring

Some of your favourite music may already be available in 5 or 6 channels digital audio (either "DTS Audio" or DVD-Audio format, or DVD's of your favourite band with either DTS or AC3 soundtrack).

[Adex]

The only other way that I can think of would be to run the stereo file through a pro-logic receiver and record the pseudo-surround sound it creates. You'd have to record each channel seperately and you'd need a multi-track recorder or something similar to do that.

Sounds like more work than it's worth really, but it's just a suggestion.

Cheers.

[Sequoyan]

If you just want to make a 5.1 out of a 2.0 (and with the understanding that the audio will not come out of the proper speakers to create the 3D effect that you are probably looking for) you can use the AC3 encoder in Scenarist and select the same PCM WAV for the source of each channel. (you will likely need to turn your stereo WAV into two monos first)

It will create your 5.1 but it won't be true 5.1.

- The Sequoyan