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Total SPL - freq graph vs mapping area, inconsistent
PostForum: EASE 4   Posted: Mon Oct 22, 2018 11:35 pm   Subject: Total SPL - freq graph vs mapping area, inconsistent
Peter Patrick
 
Replies: 2
Views: 10448




Hi Micko,
If you observe the graph you will see there are roughly 13 1/3 octave bands from 250 hz to 4 KHz at around 80 to 85 dB(A). If you do a power sum on those you will undoubtedly end up with th ...
Transmission Loss - mystery
PostForum: AFMG SoundFlow   Posted: Mon Jul 21, 2014 4:54 am   Subject: Transmission Loss - mystery
Peter Patrick
 
Replies: 2
Views: 18533




Don't forget coincidence effect. You can easily produce a worse transmission loss by adding layers of the same material separated by air gaps et al. Triple pane glass windows perform worse than double ...
SuperAntiSpyware & OGL files
PostForum: AFMG EASERA   Posted: Tue Sep 04, 2012 4:21 am   Subject: SuperAntiSpyware & OGL files
Peter Patrick
 
Replies: 0
Views: 24099




Beware folks and watch what goes on if you'rte running Superantispyware.
Last night mine torpedoed Ease and Easera by quarantining required *.OGL files.

It thought they were trojans.
Ratio of Direct to Reverberant sound
PostForum: EASE 4   Posted: Sun Jun 03, 2012 12:11 pm   Subject: Ratio of Direct to Reverberant sound
Peter Patrick
 
Replies: 2
Views: 14362




I would like to add another reference : -
Sound Reinforcement Engineering by Wolfgang Ahnert and Frank Steffen.

There are many observations regarding direct to reverberant ratio in acoustics :- R ...
Sound power level for a machine tool
PostForum: EASE 4   Posted: Thu Apr 05, 2012 4:07 am   Subject: Sound power level for a machine tool
Peter Patrick
 
Replies: 4
Views: 11492




If you subtract 4.77 dB from the Octave values you will get values representing the same level in three 1/3 octave bands to produce the same octave band level.
Use that value in all the sphere's 1/3 ...
Export/import speaker tables
PostForum: EASE 4   Posted: Wed Mar 21, 2012 8:55 pm   Subject: Export/import speaker tables
Peter Patrick
 
Replies: 2
Views: 8478




I think you might be asking a bit much of the Autocad interface. Autocad does not understand amplitude or phase.

Would it not help to create an object containing the loudspeakers. You can save an o ...
Discontinuity in SPL Mapping
PostForum: EASE 4   Posted: Wed Mar 21, 2012 8:52 pm   Subject: Discontinuity in SPL Mapping
Peter Patrick
 
Replies: 4
Views: 12755




Hi Glen,
I just ran a standard mapping routine on a pair of line arrays using a Bosch *.xglc over an audience area 300m long and found no discontinuity at all.

I can only enquire ... What does the ...
64BIT EASE/AURA and 1GB Limit
PostForum: EASE 4   Posted: Tue Mar 06, 2012 10:54 pm   Subject: 64BIT EASE/AURA and 1GB Limit
Peter Patrick
 
Replies: 6
Views: 24632




I'm not sure how you work out your cost benefit for this software.
Odeon costs around AU$18,000 here.
Autocad costs a lot more than Ease and it can only draw - it has no idea about acoustics or any ...
EASE 4.3.8 Bug
PostForum: EASE 4   Posted: Sun Jan 17, 2010 9:12 pm   Subject: EASE 4.3.8 Bug
Peter Patrick
 
Replies: 4
Views: 13702




I have heard of the same or aty least it sounded very like it, issue from a colleague here.
He had been using the "Repair" feature of the installation wizard when he updated Ease. When he u ...
EASE 4.1 Cluster Builder Error Message: No Surface Defined
PostForum: EASE 4   Posted: Tue Apr 24, 2007 8:03 am   Subject: EASE 4.1 Cluster Builder Error Message: No Surface Defined
Peter Patrick
 
Replies: 3
Views: 15307




The same thing happens for me when I try to make clusters with just about any JBL speaker. I will try and edit the cases to see if that makes any difference. Or does anyone else have successfully made ...
Appropriate material to simulate accoustic fabric
PostForum: EASE 4   Posted: Thu Mar 29, 2007 7:13 pm   Subject: Appropriate material to simulate accoustic fabric
Peter Patrick
 
Replies: 2
Views: 11219




Try the MTseat group. There's one there for fabric covered seats.
Standard mapping in outdoor applications
PostForum: EASE 4   Posted: Fri Apr 07, 2006 2:33 pm   Subject: Standard mapping in outdoor applications
Peter Patrick
 
Replies: 3
Views: 12623




Hello Chris,I'm not Stefan but I believe you might try AURA mapping to a seat or the probe from the EYES module. (Tools - Calculate AURA Response) If you don't like the answer try the original style ...
Gateway/Firewire Card
PostForum: AFMG EASERA   Posted: Sat Mar 25, 2006 7:59 am   Subject: Gateway/Firewire Card
Peter Patrick
 
Replies: 1
Views: 8808




I'm using a Belkin .... I suspect that means any card should work.
OTOH ... I'm on the look out for a 4 Pin to 6 Pin Fire Wire cable .. I know that will work too .... my lap-top has a 4 pin Fire Wire ...
Too long of RT's
PostForum: AFMG EASERA   Posted: Sat Mar 25, 2006 7:49 am   Subject: Too long of RT's
Peter Patrick
 
Replies: 3
Views: 12618




Amos,
You will peobably find that all is well if you truncate the IR.
Click on the dual blue down arrow symbol in the top trask bar.
Left Mouse button at the left hand side of the IR just to the le ...
Lodspeakers under the listening area
PostForum: EASE 4   Posted: Mon Jan 30, 2006 9:49 am   Subject: Re: Lodspeakers under the listening area
Peter Patrick
 
Replies: 3
Views: 12909




Hello!
I have a problem when loudspeakers are located on the audience area or under it. In that case SPL on the area is 0dB. I deal with a configuration when subwoofers are on the floor and I don't k ...
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