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Thread: Multichannel means no LFE Sub track? |
    
Bronze Member Username: Donaldekelly
Washington,
DC
Usa
Post Number: 46
Registered: Jul-04
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| Posted on Friday, July 30, 2004 - 09:23 am: |
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I have some "multichannel" cds that don't seem to have a sub/LFE track. The cds that do have the LFE seem to all be called "surround sound" and add the "5.1" in the cd booklet of cover.
I have a gorgeous classical cd with lots of bass from a cello - but nothing comes out of the subwoofer. Some fairly deep bass comes out of my 20khz-60?hz speakers, but with my sub set to crossover at 100 or even higher - nothing comes out of the sub.
I could put the receiver on surround sound Dolby Pro Logic II or I can hook up speaker level inputs to the sub to get the bass into the sub - but both startegies degrade the sound somewhat.
Am I doing something wrong? Is there a better way? Am I correct in thinking that some or many multichannel cds and dvd-a discs have no subwoofer track? |
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Bronze Member Username: Petergalbraith
Rimouski,
Quebec
Canada
Post Number: 32
Registered: Feb-04
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| Posted on Friday, July 30, 2004 - 09:44 am: |
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Well, if it's encoded in Dolby Digital or DTS, then they get to decide whether to put anything on the sub .1 channel. Your receiver might allow you to also feed low frequencies from the main channels to your sub, even with your mains set to "large" (or full range). My h/k avr-325 allows for that. |
Silver Member Username: Kegger
MICHIGAN
Post Number: 982
Registered: Dec-03
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| Posted on Friday, July 30, 2004 - 10:41 am: |
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yes some , i wouldn't say many do not have a sub
track.
now when you say multi channel do you mean sacd/dvd-audio.
or just dts and d.d.
if your talking dts and d.d. you just set your
speakers in the reciever to be small and say 80hz
or higher and set your sub at say 80hz.
then any sounds 80hz and lower go into the sub
regardless of whether it has a dedicated sub track.
if your talking sacd/dvd-audio with the 6 analog
cables going into the reciever.you do this:
set your
speakers in the dvd player to be small and say
80hz or higher and set your sub at say 80hz.
then any sounds 80hz and lower go into the sub
regardless of whether it has a dedicated sub track.
now the 80hz and alll speakers to small is just
a starting point to get the sound to come out the
sub. once you got that you can play around with
the crossover settings and maybe set your front
speakers back to large but with sub on in the respective menus.
if that doesn't get you somewhere then i don't know what will. |
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