Arch Linux

nordlicht

Member

From: Hamburg/Germany

Registered: 2003-07-23

Posts: 62

ALSA: upmix 2.0 to 2.1

Hi

is it possible to upmix 2.0 to 2.1 sound?
What I mean is that I want to split the 2.0 Audio in everything above 100Hz to Front (2.0) and everything below 100Hz to my sub (x.1).
I found a lot of code for the asoundrc but i didnt understnd it.

Anybody out there who know how to do?

Chris

isez2001

Member

Registered: 2006-08-24

Posts: 33

Re: ALSA: upmix 2.0 to 2.1

I think you want to use some of the techniques described on this page: http://alsa.opensrc.org/Low-pass_filter … 28HOWTO%29

I've never taken the time to do this myself, and I'm unsure of the availability of the needed ladspa plugins on Arch, so I think you may be in for some trial-and-error.

Please post back if you figure this one out, I'm curious about it myself.

Good luck!