Re: [Sursound] oktava 1st order mic

2018-03-12 Thread Len Moskowitz
Peter wrote: Thank you for your opinion Len. I am tempted to ask 'why' but let me ask instead what are the most difficult things to get right when building a first-order microphone. The incomparable Aaron Heller covered the main points in his response. Len Moskowitz

Re: [Sursound] oktava 1st order mic

2018-03-12 Thread umashankar manthravadi
t; on behalf of umashankar manthravadi <umasha...@hotmail.com> Sent: Monday, March 12, 2018 3:26:21 PM To: Surround Sound discussion group Subject: Re: [Sursound] oktava 1st order mic Dear aaron I do both. Make matched sets and calibrate the array, for Brahma microphones. Having an

Re: [Sursound] oktava 1st order mic

2018-03-12 Thread umashankar manthravadi
2, 2018 3:17:41 PM To: Surround Sound discussion group Subject: Re: [Sursound] oktava 1st order mic The radius of the tetrahedral array determines the frequency at which the B-format polar patterns start to breakdown. The formula given by Gerzon is c/(pi*r), where c is the speed of sound and r is the rad

Re: [Sursound] oktava 1st order mic

2018-03-12 Thread Aaron Heller
The radius of the tetrahedral array determines the frequency at which the B-format polar patterns start to breakdown. The formula given by Gerzon is c/(pi*r), where c is the speed of sound and r is the radius of the array[1]. Depending of the design, the acoustic radius is about 10% larger than

Re: [Sursound] oktava 1st order mic

2018-03-11 Thread Peter P.
* Len Moskowitz [2018-03-11 18:48]: > Gerard Lardner wrote: > > > Fons Adriaensen in Italy calibrated my Oktava. I believe Richard Lee in > > Australia might still offer a calibration service, though he appears to > > be less active on the internet these days, and I

Re: [Sursound] oktava 1st order mic

2018-03-11 Thread Len Moskowitz
Gerard Lardner wrote: Fons Adriaensen in Italy calibrated my Oktava. I believe Richard Lee in Australia might still offer a calibration service, though he appears to be less active on the internet these days, and I think Core Sound in the USA also will do it - they used to say it on their

Re: [Sursound] oktava 1st order mic

2018-03-08 Thread Gerard Lardner
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Re: [Sursound] oktava 1st order mic

2018-03-08 Thread Gerard Lardner
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[Sursound] oktava 1st order mic

2018-03-08 Thread Peter P.
Hi list, please excuse if this has already been discussed here before, the archive didn't show much results for me. What is the best way to encode the signal from the Oktava MK4012 1st order microphone capsules into ambisonics? Did anyone measure the mic so far or is a generic encoder the best