mad-butcher
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| posted on 28/9/06 at 06:12 PM |
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94db 1khz sine wave
evening all
just bought a sound level meter from maplin but it needs calibrating, does anyone know of any free software out there that will generate 94db @ 1khz
sine wave through my computer speaker
many thanks
tony
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stevec
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| posted on 28/9/06 at 06:29 PM |
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My wife when she finds car parts in the dishwasher.
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smart51
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| posted on 28/9/06 at 06:42 PM |
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There's no such thing. How efficient is your PC's loud speaker? They're all different. You can only calibrate yours by comparing
it with an already calibrated meter. That in turn is calibrated against a regional standard which is calibrated against a national standard. That in
turn is calibrated by the NPL who use special scientific equipment to directly measure the sound pressure level.
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meany
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| posted on 28/9/06 at 07:11 PM |
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see if you can find a friendly radio control model flying club.....they will have one which they keep calibrated ask them how they go about it.
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ecsjwhi2
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| posted on 28/9/06 at 07:38 PM |
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Where are you?
I'm on the Wirral and have the correct piece of kit to calibrate this.
Cheers
JohnW
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ReMan
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| posted on 28/9/06 at 09:35 PM |
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Is'nt this a bit..,
If I had the equipment to generat 94db at 1 khz, I would'nt have been to Maplins to buy the kit to measure it!!
www.plusnine.co.uk
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James
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| posted on 29/9/06 at 07:53 AM |
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Dunno if this'd work but:
What about going to your local SVA centre and asking if you can calibrate it when someone else does their sound test?
Just set your gear to whatever the SVA guy records for the car.
HTH,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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mad-butcher
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| posted on 29/9/06 at 06:03 PM |
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Johnw
Leasowe
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ecsjwhi2
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| posted on 29/9/06 at 10:09 PM |
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Little Sutton
Thats close enough isn't it.
Drop me an e-mail.
Cheers
JohnW
[Edited on 29/9/06 by ecsjwhi2]
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