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24270

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

It would be there regardless of the ring...it's simple caused by the discontinuity of the edge. The central pressure rise is almost exactly 10 dB, but the
LESLIE WATTS
12:24 PM
#24270
 
24269

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

Is it edge diffraction caused by the ring around the edge of the diaphragm? I suppose the wavelength at 10khz is about 34mm so that would make sense. Sent from
Gmail
11:20 AM
#24269
 
24268

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

... Silicon Labs has some 8 bit processors with easy development that have capacitive touch switch firmware and go to sleep when not asked for. One could add
John Griessen
7:21 AM
#24268
 
24267

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

Right Jerry. A bootstrapped bridged T can be made to work, and others like MFB. Les ... From: Jerry Lee Marcel jerryleemarcel@... [micbuilders] To:
LESLIE WATTS
3:50 AM
#24267
 
24266

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

Le 04/08/2015 12:21, 'LESLIE WATTS' leswatts@... ... I think you mean fully passive bridged-T; I have found active bridged-T filters to offer the
Jerry Lee Marcel
3:46 AM
#24266
 
24265

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

We''ve done some work for others on equalizing typical HF peaks on capsules with poor quality control. A significant contributor to the typical 10kHz peak in
LESLIE WATTS
3:22 AM
#24265
 
24264

Re: Ferrite beads

Whereever Schoeps places an RF bead, it is accompanied by insulative tubing on the component lead between the lead and the RF bead. They use a drop of silicone
peteverrando
Aug 3
#24264
 
24263

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

Sergei, Thank you for giving me the opportunity to point out that the notion of linear phase or minimum phase in audio (not in control theory) is strongly
Jerry Lee Marcel
Aug 3
#24263
 
24262

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

If we are talking a microphone capsule, there is a small distance between the entry port and the diaphragm. Thar small distance means small delay, which means
Sergei Steshenko
Aug 3
#24262
 
24261

Re: CAD gxl2200 condenser mic cuts out with volume for several secon

Thanks for all the hints about what could cause intermittent mic function where you see flux residue on pcb, dirt on diaphragm, and recent shipping from ebay
John Griessen
Aug 3
#24261
 
24260

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

I think we stumble, once again, on the confusion between linear phase and minimum phase. Most analogue EQ's are minimum-phase, the response of
Jerry Lee Marcel
Aug 3
#24260
 
24259

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

"I have never understood why anyone would want to use phase linear EQ to correct an electro-mechanical phenomenon which was not phase linear" - phase linear EQ
Sergei Steshenko
Aug 2
#24259
 
24258

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

"So, it's for room equalization?" - no. I am building a system of headphones. With HRTF, auralization (synthesized virtual acoustic reality or measured
Sergei Steshenko
Aug 2
#24258
 
24257

Re: K67 style capsules -- EQ filtering vs. mechanical modifying

One thing: ... BUT... I have never understood why anyone would want to use phase linear EQ to correct an electro-mechanical phenomenon which was not phase
David Pickett
Aug 2
#24257
 
24256
John Griessen
Aug 2
#24256
 
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