2 channel to 2.1 channel upmixing Program

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daganstaman

1 post

Wannabe Geek

#19494 19-Feb-2008 15:47

hi, does anyone know of a program or plugin that will create a sub channel from basic stereo scources?
at the moment itunes does not do it for me.
thanks

Karl

DaggyBoyz

6 posts

Wannabe Geek
Inactive user

#111872 20-Feb-2008 15:49

Nope. But i need 5 posts

richms

29097 posts

Uber Geek
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Lifetime subscriber

#112215 22-Feb-2008 02:05

Why would you want to do that? The .1 is added at mix time with the additional bass in it that is more then the main full range channels can cope with on a reference system (there is some thx standard for the amount of bass in the mains vs the LFE channel)

All you can do is the equivilant of turning the bass up since you dont have the origional material to mix into it, since you have the resulting downmix only available to ound making more bass is easier done on an equalizer at playback time.

Richard rich.ms

fisher191

59 posts

Master Geek

#112236 22-Feb-2008 08:38

Hi Karl,

This functioinality is normally provided with the hardware used to play it.

For example, 2.1 speakers like the logitech Z4 will split from a 2 ch input.

For a PC, the sound card or MB will have a utility to set up what speakers you have plugged in and most have a tool to 'create' 5.1 or 2.1 from stereo.

Loftus

140 posts

Master Geek
+1 received by user: 2

#112243 22-Feb-2008 09:40

You should check out FFDSHOW (Windows Software). It's freeware, and the audio side allows a lot of tweaking, including multi-channel up-mixing.

In fact I use it myself to expand the 2-channel audio signal from my media centre into 5.1 channels before encoding in AC3 and sending to my reciever via SPDIF cable.