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frequency response

Will a microphone with a frequency response of e.g. 50-15000 Hz not capture anything at all above 15k?

Hello! Been a while since last time I posted here.

In all my years of recording I have never bothered to learn what the specified frequency response (FR) of a microphone really means. I have always thought it means that the mic wont capture anything outside of the FR range, but is that really true?

According to Shure the FR "defines the range of sound that a microphone can reproduce and how its output varies within that range". 

Is it like if you'd put a low pass filter with a slope of say 96 dB/octave at 15k?

Frequency Responses in the signal chain

So to me this has a somewhat obvious answer, but I've never actually heard it discussed so I'm not certain, and I'm not sure many people have thought about it too much.

When working with a signal chain of say, just a microphone, pre-amp, and recording device, the maximum frequency response of the end-result file is going to be the frequency response of the lowest response in the chain, correct?

Where can I get frequency response info on this hardware?

I got a blue tube stereo tube preamp with the 12ax7 tube. As well as a apex 435 condenser mic. I want to know what frequencies these add or cut. (how they color the signal). Any idea where I can get this info?

Also is it possible to get the same info for these speakers? Altec Lansing ACS33?


How can I test the frequency response of my speakers?

Is there software or something that I can use to see what the frequency response of my speakers are? Like say I do a full spectrum sweep, I want to know what frequencies are being boosted/cut by the speakers. Is there some way to do this?

I basically want to eventually have an eq setting that compensates for the speakers so I have a flat response. This will hopefully give me something to learn with so I can save up for better monitors.


Frequency response of human hearing

I know an engineer who eq's his recording with peaks at the frequencies where the ear is the most sensitive. His goal was to make the sound "Louder" with out pushing compression and limiting hard. I had never seen this. His results were O.K. sounding.

I would like to experiment with this technique. I guess we're talking some type of "psychoacoustics". Where can I find average frequency response plots for the human ear? Is there any merits to his theories?

Temperature effect on mic frequency response?

Is it possible that mic frequency response can vary with the temperature of the microphone? I recently used two Shure KSM-32 mics, that had been inadvertently stored at around 50 degrees F, to record a grand piano. These mics are generally pretty useful for the piano but the results in this case seemed better than usual.

I'm not sure I've eliminated all the other possible variables yet. In fact, the apparent better sound may be just my imagination.


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