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    Invelos Forums->DVD Profiler: Contribution Discussion Page: 1  Previous   Next
"Dolby Digital Mono" same as "Dolby Digital 1.0" ?
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DVD Profiler Unlimited RegistrantWhite Pongo, Jr.
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Registered: August 22, 2007
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Old movie from the Forties...

PowerDVD reports "Dolby Digital 1.0", while the cover says "mono".

Should I contribute "Dolby Digital Mono"?
-- Enry
DVD Profiler Unlimited RegistrantStar Contributornorthbloke
Registered: March 15, 2007
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There seem to be two types of mono - mono 1.0 where all the sound comes from the centre speaker, and mono 2.0 where the same sound is sent to both left & right speakers.
As far as I know we can't input mono 1.0 into Profiler, so plain mono will be fine.
DVD Profiler Unlimited RegistrantStar ContributorDaddy DVD
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Registered: March 14, 2007
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Audio is mono when all channels produce exactly the same sound. So, this has nothing to do with the amount of channels used.
Martin Zuidervliet

DVD Profiler Nederlands
DVD Profiler Unlimited RegistrantStar Contributornorthbloke
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I know that, I was trying to explain what the 1.0 meant.
DVD Profiler Unlimited RegistrantStar ContributorDaddy DVD
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I know that you know that, I only meant that 2.0 can be stereo, but it can also be surround (decoded into 3 or 4 channels) or mono. It al depends how the sound processor separates them. However 1.0 is always just mono.
Martin Zuidervliet

DVD Profiler Nederlands
 Last edited: by Daddy DVD
DVD Profiler Desktop and Mobile Registrantkahless
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Registered: March 14, 2007
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Quoting Martin_Zuidervliet:
Quote:
I know that you know that, I only meant that 2.0 can be stereo, but it can also be surround (decoded into 3 or 4 channels) or mono. It al depends how the sound processor separates them. However 1.0 is always just mono.


This seems to be a little bit curious to me. Is it right, that the sound comes only from the center speaker, even if it's dolby digital 2.0 Mono? I do not see (hear the difference between DD 1.0 and DD 2.0 Mono??)
Thorsten
 Last edited: by kahless
DVD Profiler Unlimited RegistrantStar Contributortweeter
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Quoting kahless:
Quote:
This seems to be a little bit curious to me. Is it right, that the sound comes only from the center speaker, even if it's dolby digital 2.0 Mono? I do not see (hear the difference between DD 1.0 and DD 2.0 Mono??)

If your receiver decodes Dolby Digital and you don't have any 'custom' sound processing enabled then by default DD 1.0 should come thru the center channel and DD 2.0 thru the front Left/Right channels, ignoring the center speaker.

It will still be Monophonic but will sound better, assuming your L/R speakers are better than the center channel.

This is how my receiver works.
Bad movie?  You're soaking in it!
DVD Profiler Unlimited RegistrantStar ContributorDaddy DVD
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When using dolby pro logic the left and right channels are merged through the center speaker if they are mono. This is a way to distinguish 2.0 stereo/surround from 2.0 mono.
Martin Zuidervliet

DVD Profiler Nederlands
 Last edited: by Daddy DVD
DVD Profiler Desktop and Mobile RegistrantStar ContributorVoltaire53
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Registered: March 13, 2007
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Quoting gtweeter:
Quote:

If your receiver decodes Dolby Digital and you don't have any 'custom' sound processing enabled then by default DD 1.0 should come thru the center channel and DD 2.0 thru the front Left/Right channels, ignoring the center speaker.


Fully agree, but just posting to add that my receiver has the option to put 2.0 mono through the centre or 1.0 through the front L/R if I want it to, but by default 1.0 should be centre only and 2.0 l/r.

FWIW all 5 of my speakers are identical so I don't use the options to try to get a 'better' sound using the preferred speakers.
It is dangerous to be right in matters where established men are wrong
DVD Profiler Desktop and Mobile Registrantkahless
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Quoting Martin_Zuidervliet:
Quote:
When using dolby pro logic the left and right channels are merged through the center speaker if they are mono. This is a way to distinguish 2.0 stereo/surround from 2.0 mono.


Thanks - you enlightened me    I selected dolby pro logic by default. So I should just change these settings to enable dual mono with l/r front speakers.
Thorsten
 Last edited: by kahless
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Quoting Voltaire53:
Quote:
Fully agree, but just posting to add that my receiver has the option to put 2.0 mono through the centre or 1.0 through the front L/R if I want it to, but by default 1.0 should be centre only and 2.0 l/r.

FWIW all 5 of my speakers are identical so I don't use the options to try to get a 'better' sound using the preferred speakers.

My receiver does the same thing.  I can select a dozen or more custom sound fields but like you i let the receiver send the channels to their default speakers.  That work's fine 99.9% of the time.  And it detects Pro Logic when embedded in a DD 2.0 signal as well and spreads the sound appropriately.
Bad movie?  You're soaking in it!
DVD Profiler Unlimited RegistrantStar ContributorWinston Smith
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Registered: March 13, 2007
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Eny:

Mono can also be DD2.0 Mono. Mono is Mono.

Skip
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