VCSL

[Samulis]

(03-30-2018, 04:15 PM)Michael Willis Wrote: I have another mic question. My mic's manual has a frequency response graph that is flat from about 100Hz to 1kHz, then it has two bumps around 4kHz and 10kHz that are about 10dB louder. Under 100Hz it ramps down a little bit, and like any dynamic mic it drops off a cliff around the 14kHz/15kHz (although I'm not sure how much I can hear up that high anyway). I'm wondering if while recording I should try to EQ down the bumps around 4kHz and 10kHz, and maybe increase a little bit in the ultra-low frequencies?

Edit: I see that the guidelines documented on the github project specifically state:

Quote:These recordings shall not be processed with the exception of (1) tuning, (2) mild eq'ing to fix microphone problems, and (3) noise reduction (if necessary).

Unless given more specific direction, I'm going to try #2 to flatten out the frequency response a bit.

Edit #2: I'm considering measuring the frequency response for myself by feeding random white noise through the mic, instead of just trusting the manual. Then I can adjust the EQ to try to flatten out the response from the white noise.

You can do an eq pass however you'd like. The frequency response is generally fairly accurate as listed, so working off of that isn't a bad idea. Note that running white noise into it will also pick up the characteristics of the speaker, and to some extent, the space. The best way to do it is to measure with the mic and then a flat-response test measurement microphone and compare them, but those are very expensive.