Recording audio (with maths)

[martin griffith]

I'm a bit bored, nothing electronic happening, so to speak, but I
found this via rec.audio.pro

The new mathematical approach for recording with a microphone:


The mike should be neither too close, nor too far from the sound
source. A simple formula often used by professionals to calculate the
optimum distance to the source, D, is given by:

D = 4.72 x 10^-3 x (2pi/SV)[sin(M/T) - cos(M/2T)] dM/dt
+ e^[h(H'- H) sqrt(H/H')] x log (1/[SVT^2]) +/- msp



Where:

* D = the desired distance in inches
* H = height of the sound source in meters
* H' = height of the mike in yards
* V = max volume of the source in dBm
* S = sensitivity of the mike in millivolts per dBm
* T = mean temperature of the room in degrees Melvin
* h = Plank's reasonably constant
* M = arc tan (area of microphone diaphragm, in round mm)
* and msp = mistake someplace, in watt-kilograms/hour.



The best microphone for an accordion is none. (This rule-of-thumb also
applies to bagpipes and rappers.)

anyway there is a lot more on
http://www.mercenary.com/rectipforbeg1.html


martin

After the first death, there is no other.
(Dylan Thomas)

 

[Rich Grise]

On Sat, 21 May 2005 19:51:26 +0200, martin griffith wrote:

The best microphone for an accordion is none. (This rule-of-thumb also
applies to bagpipes and rappers.)

anyway there is a lot more on
http://www.mercenary.com/rectipforbeg1.html

Is this what they call "audiophoolishness"?

(Actually, I have a brother who's a "professional" "guitarist". He
should get a charge out of it, so to speak. ;-)

Cheers!
Rich

 

[Adrian Tuddenham]

martin griffith <martingriffith@XXyahoo.co.uk> wrote:

The best microphone for an accordion is none. (This rule-of-thumb also
applies to bagpipes and rappers.)

...and to the Breton bombarde - but more so.

--
~ Adrian Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk