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Author Topic: Microphone calibrater
Don Sneed
Master Film Handler

Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001


 - posted 07-25-2005 11:13 PM      Profile for Don Sneed   Author's Homepage   Email Don Sneed   Send New Private Message       Edit/Delete Post 
Do anyone knows where I can purchase a microphone calibrater so I can calibrate my RTA mics....I seen one once, seen it being use, but do not know where to purchase one...any ideas ?? thanks..

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 07-26-2005 07:37 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
THX used to sell the adapter for the R2 mics to fit them onto the BK calibrator

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 07-27-2005 07:33 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Don,

Check with Countryman since they make the mics. They may also make the adaptor or have on that will work.

Mark

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Don Sneed
Master Film Handler

Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001


 - posted 07-30-2005 11:22 AM      Profile for Don Sneed   Author's Homepage   Email Don Sneed   Send New Private Message       Edit/Delete Post 
Mark are you talking about the calibrater, where do I get a mic. calibrator to calibrate my mics...I have the Ultra-Stereo mics & mulit-plexer & a Audio Control mic. for my RTA..I am now using the Ivie-33 & need to calibrate the mics. to the Ivie...any ideas where to purchase a Microphone Calibrator ??

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 07-30-2005 11:25 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Don,
Your Mics are made by a company called Counrtyman. I would suggest that you contat them and see what they reccomend for a calibrator. Countryman link

Mark

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 07-30-2005 12:05 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
maybe try Tim Holmes
www.acoustx.us

Like the R2 the D2 uses the same mics

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Don Sneed
Master Film Handler

Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001


 - posted 07-30-2005 01:40 PM      Profile for Don Sneed   Author's Homepage   Email Don Sneed   Send New Private Message       Edit/Delete Post 
OK, thanks guys....

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 07-30-2005 03:23 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
1. Tom Holman once calibrated my old IE-30 mike by mounting it exactly 4 inches from a speaker and comparing it to his.

2. Alternatively, you could get a rough approximation by using the speaker spec "blank db at one meter" and setting in the correct power level (1 watt) electrically. This is the method us "old timers" used. (Assume 1.0 KHz 1000 cycles)!)

Louis

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Ken Jacquart
Film Handler

Posts: 82
From: San Francisco, CA, USA
Registered: Mar 2000


 - posted 08-02-2005 09:36 PM      Profile for Ken Jacquart   Author's Homepage   Email Ken Jacquart   Send New Private Message       Edit/Delete Post 
For SPL microphone calibration, I use the Bruel & Kjaer 4231. It won't do anything for frequency response, but it will acurately calibrate sound pressure level.

http://www.bksv.com/pdf/Bp1311.pdf

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