5.1 upmixing.

Joe42 · 15 Dec 2006 at 22:56

I have an Audigy 2 ZS Platinum Pro, and it has a plugin which came as part of the creative mediasource media player bundled with it that does dts neo:6 encoding. This means the music played with media source is intelligently upmixed to 5.1.

I'm wondering if there is a way to upmix everything to 5.1, for example internet radio such as pandora which i use a lot?

Clearly the card could do it so i think its just a software thing. I presume it would have to use either dts neo:6 or dolby prologic 2? Does this mean because of licensing no-one has made some free software to do it?

chrismox · 15 Dec 2006 at 23:18

http://ac3filter.net

Joe42 · 15 Dec 2006 at 23:48

Seems like the right sort of thing, thanks.

Doesn't seem to work though, does it only work with stuff played from a media player?

squiffy · 15 Dec 2006 at 23:53

You need to configure it to what you want to upsample it to. I don't use it myself, as I use Lexicon Logic-7 to scale up tracks, if I want to. Probably does a better job of it.

Joe42 · 15 Dec 2006 at 23:58

I think what i'm looking for is something that works with flash, which is what pandora uses. Its not in the compatibility tables so presumable this won't work with pandora?

Does this use the soundcard or only the cpu?

Is upmixing the correct term for this?

squiffy · 16 Dec 2006 at 00:05

I guess DSP sound expansion, but before I use it I would find out just exactly how it applies a DSP to expand to 5.1/7.1.

There's a ton of info on the Lexicon site about Logic 7, granted it's there own DSP, but at least get a idea how/why DSP is applied to the signal to get it to higher channels.

http://www.lexicon.com/downloads/mc1/Lexicon_Theory-Design.pdf

Joe42 · 16 Dec 2006 at 00:30

Thanks i'll have a read.

The easy solution is to get some new speakers with built in prologic 2 so everything that comes out the soundcard gets upmixed, but it seems silly when i already have a sound card that's perfectly capable of doing it...

chrismox · 16 Dec 2006 at 14:39

Joe42 said:
Seems like the right sort of thing, thanks.

Doesn't seem to work though, does it only work with stuff played from a media player?

Ah, you're probably right - I mostly use it for films played in media players.

Joe42 · 18 Dec 2006 at 00:10

Anyone else got any ideas of how this might be done?

Does x-fi have any options to do this?

Thanks