Dolby TrueHD & DTS MA Subwoofer. - Blu-ray Forum

Audiophile_At_Birth · 01-11-2009, 05:01 AM

Basically He is saying that the New audio codecs for HD sound have a tone freq range from 5hz to inf khz (within reason). and most subs for the average joe range from about 20hz to 120hz which would match up well with the old Audio codecs like DD and DTS which range from 20hz to inf khz (again within reason). So when your subs limit is reached when playing an HD audio codec all you hear is a muffled sound that isn't very clear or loud for that matter.

Opips2 · 01-11-2009, 05:10 AM

Quote:

Originally Posted by Audiophile_At_Birth

Basically He is saying that the New audio codecs for HD sound have a tone freq range from 5hz to inf khz (within reason). and most subs for the average joe range from about 20hz to 120hz which would match up well with the old Audio codecs like DD and DTS which range from 20hz to inf khz (again within reason). So when your subs limit is reached when playing an HD audio codec all you hear is a muffled sound that isn't very clear or loud for that matter.

Thanks, Audiophile
It's important information. please don't turn too high volume for loud. it damage your a speaker.

Squozen · 01-12-2009, 09:38 AM

Warning: Do not compose forum posts with magnetic poetry.

Halcro 1 · 01-12-2009, 12:55 PM

My sub as well as all others wont play to 5Hz, so the sub wont because it cant play it.. some speakers advertise they can play to 28KHz so does that mean my dog will have a seizure ???Some funny stuff on here for shure

nezff · 01-14-2009, 01:37 PM

Quote:

Originally Posted by Squozen

Warning: Do not compose forum posts with magnetic poetry.

amen
I dont understand nothing he says

dobyblue · 01-14-2009, 08:54 PM

Dolby Digital and dts also can put out 5Hz tones, we have seen this in spectrum analysis of "The Incredibles" for example.

The Dolby Digital track has numerous scenes with energy down to 5Hz.
http://www.hometheaterhifi.com/volum...05-part-2.html

Probably 0.001% of the people here have a subwoofer that will hit 5Hz. You need to get a rotary sub I believe to get usable output that low.

http://www.rotarywoofer.com/

Frequency Response: 1Hz – 30Hz +/- 4dB

Dolby TrueHD doesn't magically carry information at 5Hz that no other codec does. DSD, dts, dts-master audio, PCM, dolby digital, etc., all can offer frequencies that low.

Opips2 · 01-15-2009, 04:31 AM

I heard it's cost $30,000 for rotary subwoofer.

I've a rotary watch. $150.00 pound in London. long past ago...

LembasBread · 01-15-2009, 05:23 AM

No human can hear 5Hz anyway. BTW, isn't that the "Brown Note?"

Marcusarilius · 01-15-2009, 05:27 AM

Quote:

Originally Posted by Opips2

I heard it's cost $30,000 for rotary subwoofer.

I've a rotary watch. $150.00 pound in London. long past ago...

How low does your rotary watch go down to?

zicmubleu · 02-20-2009, 08:19 PM

Quote:

Originally Posted by dobyblue

Dolby Digital and dts also can put out 5Hz tones, we have seen this in spectrum analysis of "The Incredibles" for example.

The Dolby Digital track has numerous scenes with energy down to 5Hz.
http://www.hometheaterhifi.com/volum...05-part-2.html

Probably 0.001% of the people here have a subwoofer that will hit 5Hz. You need to get a rotary sub I believe to get usable output that low.

http://www.rotarywoofer.com/

Once I find an external subwoofer amplifier to use I will hook it up to my attic fan and be in business!

Twitch9 · 02-20-2009, 09:11 PM

Good luck hearing anything below 15hz even 20hz is hard to hear. Also no such thing as the brown note, mythbuster busted that one. Also has any ever seen a sub play a sound at 10hz or below, it's incredible to watch the cone on the speaker move.

BLindsay · 02-22-2009, 09:48 PM

Quote:

Originally Posted by dobyblue

Dolby Digital and dts also can put out 5Hz tones, we have seen this in spectrum analysis of "The Incredibles" for example.

The Dolby Digital track has numerous scenes with energy down to 5Hz.
http://www.hometheaterhifi.com/volum...05-part-2.html

Probably 0.001% of the people here have a subwoofer that will hit 5Hz. You need to get a rotary sub I believe to get usable output that low.

http://www.rotarywoofer.com/

Frequency Response: 1Hz – 30Hz +/- 4dB

Dolby TrueHD doesn't magically carry information at 5Hz that no other codec does. DSD, dts, dts-master audio, PCM, dolby digital, etc., all can offer frequencies that low.

Even JL's Fathom only lists 15hz @ -10db (18 @ -3db)

D · 02-22-2009, 10:44 PM

If you have the opportunity, check out Aerial Acoustics SW-12 subwoofer, you won't regret it.

krazeyeyez · 03-06-2009, 10:29 PM

Quote:

Originally Posted by Squozen

Warning: Do not compose forum posts with magnetic poetry.

LMFAO!!!! i hate to laugh at that because i go on a few foreign forums and their a hell of alot more patient with me then we are with them, but that was too funny, if i would have been drinking anything, i would have blown it everywhere, lmao well done.

SammyG · 03-06-2009, 10:58 PM

Wait, so if I buy an elephant or ferret, they could hear my subwoofer!

Jbald87 · 03-07-2009, 06:54 AM

Well I dont think I would buy one of those fans... I think I'd buy a butt kicker to feel the power.

01-14-2009, 08:54 PM	#6
dobyblue Super Moderator Top contributor Member since:Jul 2006 Location:Ontario, Canada Home Theater Gallery:71 4K collection:55 Blu-ray collection:655 Blu-ray reviews: 15	Dolby Digital and dts also can put out 5Hz tones, we have seen this in spectrum analysis of "The Incredibles" for example. The Dolby Digital track has numerous scenes with energy down to 5Hz. http://www.hometheaterhifi.com/volum...05-part-2.html Probably 0.001% of the people here have a subwoofer that will hit 5Hz. You need to get a rotary sub I believe to get usable output that low. http://www.rotarywoofer.com/ Frequency Response: 1Hz – 30Hz +/- 4dB Dolby TrueHD doesn't magically carry information at 5Hz that no other codec does. DSD, dts, dts-master audio, PCM, dolby digital, etc., all can offer frequencies that low. Last edited by dobyblue; 01-14-2009 at 08:57 PM.

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01-11-2009, 05:01 AM	#1
Audiophile_At_Birth Special Member Member since:Nov 2008 Location:El Paso, TX Home Theater Gallery:31 4K collection:8 Blu-ray collection:235 Blu-ray reviews:1	Basically He is saying that the New audio codecs for HD sound have a tone freq range from 5hz to inf khz (within reason). and most subs for the average joe range from about 20hz to 120hz which would match up well with the old Audio codecs like DD and DTS which range from 20hz to inf khz (again within reason). So when your subs limit is reached when playing an HD audio codec all you hear is a muffled sound that isn't very clear or loud for that matter.

01-12-2009, 09:38 AM	#3
Squozen Senior Member Member since:Jan 2008 Location:Melbourne, Australia Home Theater Gallery:17 Blu-ray collection:80	Warning: Do not compose forum posts with magnetic poetry.

01-12-2009, 12:55 PM	#4
Halcro 1 Senior Member Member since:Nov 2008 Location:Everywhere Home Theater Gallery:12	My sub as well as all others wont play to 5Hz, so the sub wont because it cant play it.. some speakers advertise they can play to 28KHz so does that mean my dog will have a seizure ???Some funny stuff on here for shure

01-15-2009, 04:31 AM	#7
Opips2 Special Member Member since:Nov 2008 Location:Edmonton, AB Home Theater Gallery:6 Blu-ray collection:175 Blu-ray reviews:10 Trading Score:1	I heard it's cost $30,000 for rotary subwoofer. I've a rotary watch. $150.00 pound in London. long past ago...

01-15-2009, 05:23 AM	#8
LembasBread Active Member Member since:Dec 2006 Blu-ray reviews:1	No human can hear 5Hz anyway. BTW, isn't that the "Brown Note?"

02-20-2009, 09:11 PM	#11
Twitch9 Expert Member Top ranked HT gallery Member since:Nov 2008 Location:Canada Home Theater Gallery:83 Blu-ray collection:49 Blu-ray reviews:16 Trading Score:2	Good luck hearing anything below 15hz even 20hz is hard to hear. Also no such thing as the brown note, mythbuster busted that one. Also has any ever seen a sub play a sound at 10hz or below, it's incredible to watch the cone on the speaker move.

02-22-2009, 10:44 PM	#13
D Blu-ray Ninja Top contributor Member since:Feb 2008 Location:Roaming the Highlands Home Theater Gallery:1 Blu-ray reviews:1	If you have the opportunity, check out Aerial Acoustics SW-12 subwoofer, you won't regret it.

03-06-2009, 10:58 PM	#15
SammyG Special Member Member since:Feb 2009 Location:Douglassville, PA Blu-ray collection:1034 Trading Score:7	Wait, so if I buy an elephant or ferret, they could hear my subwoofer!

03-07-2009, 06:54 AM	#16
Jbald87 Active Member Member since:Jan 2009 Location:South Western, Michigan Blu-ray collection:47	Well I dont think I would buy one of those fans... I think I'd buy a butt kicker to feel the power.

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