[linux-audio-user] Creating surround sound

Jesse Chappell jesse at essej.net
Sun Dec 24 21:06:03 EST 2006

On 12/23/06, Pelle Nilsson <pellenilsson at fastmail.fm> wrote:

> Thanks! Apart from letting me know how to create the AC3 from the
> command line if I should need to do that, it also hinted at a standard
> recipe for dealing with the LFE channel: Mix all the other channels
> into one and apply a lowpass filter with a cutoff frequency of
> 150Hz. I will assume that this is a good method for now and look at
> the results.

Depending on what your content is, it might be best to simply not
encode an LFE channel at all.  For music an LFE track is generally not
recommended.  But if you're doing an action film soundtrack or pipe
organ recital,  feel free :)


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