[mythtv] Internal DVD Player multichannel support
lists at wildgooses.com
Wed May 3 14:07:08 UTC 2006
>fir is a bit computationally excessive for LPF when the ear is quite phase
>insensitive to bass signals.
Aha, but that's the bit I disagree with (to a certain extent)
The ear most certainly is insensitive to phase at high freqs, the only
point it is slightly sensitive is bass freqs. Opinion differs on how
much, but I think if you compare a big sealed box sub system to a ported
sub driven hard then you will notice a very distinct different in sound
quality (sealed box is much better). Disadvantage of sealed box is the
lack of powerhandling though, so they aren't common in normal HT
I guess I would agree that an IIR could be better for HT applications -
good point didn't really have my brain in gear. I doubt the convolution
is a big deal, but the time delay could be a disadvantage.
In my case I am processing massive 65535 tap filters on each channel for
my setup. CPU is around 15% for the audio on a P2.8Ghz.
More information about the mythtv-dev