| Forum: Klaus Heyne's Mic Lab |
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| Topic: Critic At Large |
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| Re: [B]Topic Four[/B] [message #342101 is a reply to message #341640 ] |
Fri, 16 May 2008 16:05 |
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 J.J. Blair
Messages: 9751
Registered: May 2004
Location: by the sea & sand |
Platinum Member |
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I don't do gearslutz. I like opinions from people who've actually made a record.
temporary webpage
They say the heart of Rock & Roll is still beating, which is amazing if you consider all the blow it's done over the years.
"The Internet enables pompous blowhards to interact with other pompous blowhards in a big circle jerk of pomposity." - Bill Maher
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| Re: [B]Topic Four[/B] [message #342106 is a reply to message #342101 ] |
Fri, 16 May 2008 16:16 |
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 Barry Hufker
Messages: 4927
Registered: October 2004
Location: between heaven and hell |
Platinum Member |
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What can we say as audio professionals? We are passionate about our craft. We have standards which we try to keep. We hate to see a world of high standards sliding into mediocrity.
I think we can take any aspect of audio - equipment, philosophy, technique, etc. - and get very passionate discussions. But great microphones were, and are, built with some kind of loving care. As the beginning of a recording process, for example, we know the project must "begin correctly". Whether that's with a twenty dollar mic or a twenty thousand dollar one, that choice determines a lot about what we are able to do next so there is some special aspect to microphones. That and the fact we can remember purchasing our first or a very special (to us) microphone. That is a dear memory and one which we hold more tightly than the ones we have of other equipment.
http://www.hufkerrecording.com
Our latest project: Check out guitarist, Frank Vignola's new DVD http://www.frankvignola.com
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| Re: [B]Topic Four[/B] [message #342123 is a reply to message #342101 ] |
Fri, 16 May 2008 16:43 |
sui-city
Messages: 197
Registered: April 2004 |
Active Member |
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| J.J. Blair wrote on Fri, 16 May 2008 23:05 |
I don't do gearslutz. I like opinions from people who've actually made a record.
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J.J.
think back to a couple of years ago, a little thread about clocks and conversion got fairly heated. Right here on PSW.
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| Topic: My U47 Capsule Tests |
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| Re: My U47 Capsule Tests [message #342009 is a reply to message #341886 ] |
Fri, 16 May 2008 11:13 |
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Barry Hufker
Messages: 4927
Registered: October 2004
Location: between heaven and hell |
Platinum Member |
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I really hope Klaus and David will take a quick moment to listen to J.J.'s sound file. The K47 capsule I have sounds markedly different and I need to know what can be done about it. Is it defective? Poorly tuned? Or "in the ballpark". And what can I do about it?
It only takes a minute and I really need to know. Remember, you're not tuning a capsule so it isn't as important as hearing it first-hand. I just need an informed opinion from people who tune capsules.
Thanks,
Barry
http://www.hufkerrecording.com
Our latest project: Check out guitarist, Frank Vignola's new DVD http://www.frankvignola.com
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| Re: My U47 Capsule Tests [message #342110 is a reply to message #341723 ] |
Fri, 16 May 2008 16:23 |
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Klaus Heyne
Messages: 1957
Registered: April 2004 |
Platinum Member |
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| J.J. Blair wrote on Thu, 15 May 2008 12:26 |
I want to know why Klaus hasn't built himself an anechoic chamber! He's got all that room. And every KH mic can come with a professional looking frequency print out!
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If you can relate the use of an anechoic chamber to my success as a mic tuner/designer, let me know! Frequency plots of mics are about the most ridiculous form of "quasi-science" I have ever encountered. Read the accompanying plot from Radio Shack's $89.- Eletret condenser, and you will understand.
It's about as predictive of the sound of a mic as carbon chain printout of a wine is a predictor for its taste.
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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| Re: My U47 Capsule Tests [message #342174 is a reply to message #340885 ] |
Fri, 16 May 2008 19:10 |
MDM,
Messages: 420
Registered: January 2008 |
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any 2-dollar omni condenser will have close to flat response from 20 to 20000 hz.. freq response is not THAT important..
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| Topic: Output sensitivity specifications in relation to ribbon microphones.... |
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| Output sensitivity specifications in relation to ribbon microphones.... [message #342005] |
Fri, 16 May 2008 11:04 |
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First of all, hello to you all. This is my first thread in this forum. Hopefully it belongs here.
I've been researching some ribbon microphones recently, and was wondering...
What is implied by the output sensitivity specifications of microphones, especially in relation to ribbon mics?
What potential differences in sound could result from a difference in output sensitivity btwn., for example, an AEA R84 (Output Sensitivity: -52 dBv/Pa) and a Coles 4038 (Output Sensitivity: -65 dB W.R.T. IV/Pa)?
I'm trying to get a firmer grasp on how to read the spec. and understand its meaning and its impact on the sound of the microphone in relation to gain requirements, accuracy at various distances from the source, frequency response, ability to translate transient information, etc.
I know that there's more to a microphone's sound, but I'd like to understand this aspect better.
Thank you....
Ryan Slowey
Albany, NY
Me: http://www.myspace.com/bubba_joan
Music page: http://www.myspace.com/hangmanslowly
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| Re: Output sensitivity specifications in relation to ribbon microphones.... [message #342188 is a reply to message #342005 ] |
Fri, 16 May 2008 19:56 |
Bbob
Messages: 27
Registered: May 2006
Location: Ashland Massachusetts USA |
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Here's an informative online calculator that might be useful.
http://www.sengpielaudio.com/calculator-transferfactor.htm
Note that the measurements are made "open circuit" which means no load at the terminals. It is a voltage measurement. You can accurately enumerate the sensitivity of a given microphone yourself using only a calibrated source and a high quality DVM. You might not see the @1KHz designation on that link. One could debate if the measurement of sensitivity at the one frequency is adequate.
The coupling of the microphone to the source is a major factor and involves distance, and pattern, which affect the result.
BBob
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| Topic: Mini massive M7 and K47 test |
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| Re: Mini massive M7 and K47 test [message #341917 is a reply to message #340623 ] |
Fri, 16 May 2008 04:08 |
MDM,
Messages: 420
Registered: January 2008 |
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Well, even if you mic at 1 foot, the ROOM REFLECTIONS are always further than that..
I mic from 4 feet usually.. not always vocals of course..
and the point was that it's a test..
a mic which will pick up detail at a distance will sound HUGE and 3D if you put it close..
.. and I'm not talking about the cardioid/hypercardioid issue..
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| Re: Mini massive M7 and K47 test [message #342122 is a reply to message #341917 ] |
Fri, 16 May 2008 16:39 |
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Klaus Heyne
Messages: 1957
Registered: April 2004 |
Platinum Member |
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I agree with Barry. Use a test setup that reflects the usage.
It's treacherous to assume and predict behaviours of mics from other than the tested conditions.
I never, for example, understood the 'key jangling' test. What is this supposed to show, other than the behavior of a mic in response to jangling key? And, what was that Grammy® winning record again that prominently featured jangling of keys?
It may sound scientific om the surface that key jangling is predictive of transient response of a mic. I believe this is a deceptive assumption. Typically, transients ride on and are part of complex wave forms (f.ex. the bow sound on a cello, the attack of a snare drum over a full orchestra...)
Martin's idea of using his trusted acoustic guitar is therefore valid, despite my reservations of U47s in front of (most) acoustic guitars.
Klaus Heyne
German Masterworks
www.GermanMasterworks.com
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| Re: Mini massive M7 and K47 test [message #342173 is a reply to message #340623 ] |
Fri, 16 May 2008 19:08 |
MDM,
Messages: 420
Registered: January 2008 |
Active Member |
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that may be, but strangely enough the BEST vocal mics were born as distant orchestral mics.. and they actually WORKED in that situation..
there IS a relationship between the two..
ANYWAY... I don't use my LDC's for JUST VOCALS... I use them for EVERYTHING..
I want to get my other M7 which has PE film done in PVC so I can record orchestras if I want to..
that IS my application... also..
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| Re: Mini massive M7 and K47 test [message #342216 is a reply to message #340623 ] |
Fri, 16 May 2008 21:42 |
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Larrchild
Messages: 2548
Registered: June 2005
Location: Fort Lauderdale, Florida |
Platinum Member |
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It's useful, when using headphones and your own voice to evaluate mics, to flip the absolute polarity (phase) to find which polarity compliments what is happening acoustically in your skull at the same moment.
Larry Janus
http://tubeequipment.com
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