RT-60 Measurement Sabine or Eyring? - Home Theater Forum and Systems - HomeTheaterShack.com

Old 08-09-12, 04:34 AM Thread Starter
Shackster

Join Date: Dec 2011
Posts: 16
RT-60 Measurement Sabine or Eyring?

Do the graph in the RT-60 measurement of REW represent Sabine or Eyring?

Thank You
floddern is offline

Old 08-10-12, 11:04 AM
REW Author

John

Join Date: Apr 2006
Location: UK
Posts: 6,298
Re: RT-60 Measurement Sabine or Eyring?

Neither, REW's graphs are the actual RT60 values calculated from the measurement, the Sabine and Eyring equations seek to predict the RT60 figure from surface absorption data.
JohnM is online now
Old 09-17-12, 01:15 PM
Shackster

Join Date: Sep 2012
Location: Arizona, USA
Posts: 7
Re: RT-60 Measurement Sabine or Eyring?

Quote:
JohnM wrote: View Post
Neither, REW's graphs are the actual RT60 values calculated from the measurement, the Sabine and Eyring equations seek to predict the RT60 figure from surface absorption data.
Is there a way to get the sabine measurement via a formula or by some other method using REW for a particular trap?
TooAural is offline
Old 09-17-12, 02:38 PM
REW Author

John

Join Date: Apr 2006
Location: UK
Posts: 6,298
Re: RT-60 Measurement Sabine or Eyring?

Determining the absorption figures for a bass trap (or even a panel) is very difficult without a controlled environment, and not trivial even then. You might get some pointers on measuring acoustic treatments (as opposed to their effect on a room) in the Acoustics forum.
JohnM is online now
Old 09-18-12, 09:14 AM

Join Date: Jan 2012
Posts: 5
Re: RT-60 Measurement Sabine or Eyring?

Hi, I am new here. Get the book 'master handbook of accoustics' by Alton Everest. Explains sabine predictions and absorption coeff. of different materials.
Deon is offline

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