Mar 16, 2007 13:29
17 yrs ago
1 viewer *
English term
directibility
English
Tech/Engineering
Mechanics / Mech Engineering
air conditioners
"Sound pressure in dB(A) calculated at 10 m, in a free field on a reflecting surface, is given as a guide only and with a directibility of +/- 3 dBA."
...what's this?
...what's this?
Responses
3 +3 | directivity (factor) | Nik-On/Off |
2 | variance | ErichEko ⟹⭐ |
Responses
+3
14 mins
Selected
directivity (factor)
I think it is "directivity" that is meant
Peer comment(s):
neutral |
Alexander Demyanov
: why would directivity be measured in +/-?//If they did mean "directivity" then they are definitely wrong using +/-: http://www.record-producer.com/learn.cfm?a=2704
5 mins
|
Oh, you seem right that I'm wrong :(
|
|
agree |
Tony M
: I rather felt the same, and the variation of +/- 3 dB would be logical enough
17 mins
|
agree |
Vicky Papaprodromou
1 hr
|
agree |
Alfa Trans (X)
22 hrs
|
4 KudoZ points awarded for this answer.
Comment: "thanks!"
14 mins
variance
Looks like it to me. The sound pressure calculated at 10m is only an estimate; the real pressures is + or - 3dBA of that estimate.
Discussion