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Garret · 6th February 2007

Jorbi,
A lot of questions there. I will try to answer some. I'm sure others will chime in too.
Television has a more limited dynamic range to film. Typically 8 to 10dBs. Film can be far more than this due to the contained nature of where you will be watching the film (cinema). If you have dial slamming and then dial at -40dB in the next scene it is going to get swallowed up in ordainary household noises. (kettle, conversation, radiator). Also it will really annoy the hell out of people watching tv late at night constantly having to readajust levels trying not to wake the neighbours. Think about how annoying ads are when they come in slamming!!
I believe that -10dBFS was settled on due to some bandwidth issue over cable tv or something. I'm sure others will have more info on this.
As regards the dialnorm levels. There are shortterm readings for this too. So as long as your short term readings are between 3 above and 4 below your longterm reading you will pass. There is no snapshot, it is the average of the whole program.
Garret

6th February 2007	#13
Garret Gear Head Joined: Jan 2007 Location: Ireland Posts: 46	Jorbi, A lot of questions there. I will try to answer some. I'm sure others will chime in too. Television has a more limited dynamic range to film. Typically 8 to 10dBs. Film can be far more than this due to the contained nature of where you will be watching the film (cinema). If you have dial slamming and then dial at -40dB in the next scene it is going to get swallowed up in ordainary household noises. (kettle, conversation, radiator). Also it will really annoy the hell out of people watching tv late at night constantly having to readajust levels trying not to wake the neighbours. Think about how annoying ads are when they come in slamming!! I believe that -10dBFS was settled on due to some bandwidth issue over cable tv or something. I'm sure others will have more info on this. As regards the dialnorm levels. There are shortterm readings for this too. So as long as your short term readings are between 3 above and 4 below your longterm reading you will pass. There is no snapshot, it is the average of the whole program. Garret __________________ G5 2.5Ghz,4GigRam,OS10.4.8,HD6,192,Sync,Mojo,D-Control,PT7.3.1,Waves Plat (Dell M70 2.13Ghz,Windows XP,1Gig Ram,DV Toolkit2, Mbox,Command 8,PT 7.3.1)