[SurroundSound] Re: Playing 5.1 in a 4.0 setup

On a tangent to this... my main system was quad with 4 full size cabs,
but then I bought a centre speaker and just turned off LFE in the
Denon receiver's settings, so all bass goes to the 12" woofers in my
cabs and I don't use the .1 in any kind of 'sub woofer' at all. To my
way of thinking the 'sub' stands for substitute for having proper 12"
woofers in the first place :-}}
Therefore I guess you could say I run a 5.0 system rather than a quad
nowadays.

On Jan 27, 6:00 pm, Stephen Disney <sthunderroc...@gmail.com> wrote:
> I don't know about your soundcard, but most creative cards give 4.0 as
> an option in speaker setups.  Also, while I don't know how well it
> works, VLC give the option to output 2front/2rear on all 5.1 audio.
> S
>
> On 1/27/11, Peter Cawthron <peter_cawth...@yahoo.co.uk> wrote:
>
> > Hi Alejandro,
>
> > I do the same as you - nearly all my quad listening is from a PC into a
> > Sansui QRX-9001 receiver.
>
> > Most of the time I use foobar with the Matrix Mixer add-in. For 5.1 material
> > I usually send 0.5 of the C to both LF and RF, and I send 0.25 of LFE to
> > each of LF, RF, LR, RR.
>
> > When you ask about an 'automatic' method you could use a DirectShow filter
> > like AC3Filter or ffdshow - although I lost track of what players these work
> > with - but all that means is that someone else has chosen the default
> > matrix. In AC3Filter the default for its '2/2 - quadro' output is:
>
> > LF comprises L=0.4531 + C=0.3204 + LFE=0.2265
>
> > RF comprises R=0.4531 + C=0.3204 + LFE=0.2265
>
> > LR comprises LR=0.4531 + LFE=0.2265
>
> > RR comprises RR=0.4531 + LFE=0.2265
>
> > You can change the default values in AC3Filter. Something very similar is
> > done in ffdshow with a customisable matrix.
>
> > Regards,
>
> > Peter
>
> > From: surroundsound@googlegroups.com [mailto:surroundsound@googlegroups.com]
> > On Behalf Of Alejandro Valdez
> > Sent: 27 January 2011 3:47 PM
> > To: surroundsound@googlegroups.com
> > Subject: [SurroundSound] Playing 5.1 in a 4.0 setup
>
> > Hi group, I've a homemade 4.0 quad setup (cheap, but does the job) connected
> > to a PC to play my files (DVD-A, FLAC, anything...).
>
> > When listening to 5.1 mixes I found that I'm loosing an important part of
> > the audio track, sometimes the voice goes in the center channel of the 5.1
> > mix and is missing in the front channels.
>
> > I discovered that using a matrix mixer (a kind of DSP in your media player
> > of choice) I can redirect any amount of the center channel to the front
> > channels, that works but:
>
> > 1) I don't know if I'm getting the right mix (how much of the center and sub
> > channels should I send to the front channels?)
>
> > 2) I would like a player that can convert on-the-fly the 5.1 tracks to a 4.0
> > output without any changes in the configuration (I mean automatically).
>
> > I guess that I'm not the only one in this situation, so how do you solve
> > this kind of issues?... any player/plugin suggestions?
>
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