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Ease Modeling RT time does not change
PostPosted: Wed Oct 13, 2004 10:35 pm Reply with quote
Jeremy Nuckolls
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I have been looking at the RT60 time for an ease model that I am working on and noticed that my calculations do no change when switching between extremely different materials (perforated metal and 5/8ths gypsum). I know that I should be getting some starkly lower times with the metal panels as their coefficients of absorption are much higher with the perforated panels. I have used the *recompute* option to no avail, my graphs look exactly the same. Any advice would be greatly appreciated.


Please send any important information to jerry@yellowinkrecords.com and jerry.n@imagemedia.biz

Re: Ease Modeling RT time does not change
PostPosted: Thu Oct 14, 2004 11:20 am Reply with quote
Peter Patrick
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>I have been looking at the RT60 time for an ease model that I am working on and noticed that my calculations do no change when switching between extremely different materials (perforated metal and 5/8ths gypsum). I know that I should be getting some starkly lower times with the metal panels as their coefficients of absorption are much higher with the perforated panels. I have used the *recompute* option to no avail, my graphs look exactly the same. Any advice would be greatly appreciated.

>Please send any important information to jerry@yellowinkrecords.com and jerry.n@imagemedia.biz


Jerry,

By *recompute* do you mean the F5 key.??

That's the key that changes the result.

The other question is what proportion of the room's surface are you changing.

The whole ceiling or a smaller surface.

You have to change a significant proportion of the surface areas in a room to make a difference.


Hope this helps

Peter Patrick

Re: Ease Modeling RT time does not change
PostPosted: Thu Nov 04, 2004 3:44 pm Reply with quote
Eric Aden
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>>I have been looking at the RT60 time for an ease model that I am working on and noticed that my calculations do no change when switching between extremely different materials (perforated metal and 5/8ths gypsum). I know that I should be getting some starkly lower times with the metal panels as their coefficients of absorption are much higher with the perforated panels. I have used the *recompute* option to no avail, my graphs look exactly the same. Any advice would be greatly appreciated.

>>Please send any important information to jerry@yellowinkrecords.com and jerry.n@imagemedia.biz


Try opening room options and uncheck the *room open* box and under reverberation time make sure that the RT is NOT locked - this prevents the results from changing when surafces are changed.

Hope this helps

Ease Modeling RT time does not change
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