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Junior Varsity
Help needed in resolving mudiness & resonant frequencies
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<blockquote data-quote="Art Welter" data-source="post: 214512" data-attributes="member: 52"><p>Craig,</p><p></p><p>Listening to your voice it sounds to me that the "pronounced resonant frequencies" are simply a result of the proximity effect (bass boost) from using a typical cardioid microphone at a close range. A simple inverse curve can reduce that bass boost, though the interaction of the proximic effect and each person's mouth cavity resonance for each different vowel, volume, and distance cannot be equalized with a single "one size fits all" filter.</p><p>I couldn't quickly find an example of the SM-7B proximity curves, but although they would be a bit less than the attached Beta 58, you may get as much as 10 dB (twice as loud) bass boost moving from 3 inches to "kissing" the screen.</p><p>Using a good omnidirectional microphone pretty much eliminates the proximic effect, but allows more level from the reverse side in to the recording, a problem in noisy environments.</p><p>If you need the cardioid pattern, but want to avoid the proximic effect, using an EV RE-10, RE-20, RE-27 or Shure KSM8, SM-53 or SM-54 are all good choices. They will allow you to "work the mic" distance without affecting the tonal balance near as much as the mics you have been using.</p><p></p><p>Art</p></blockquote><p></p>
[QUOTE="Art Welter, post: 214512, member: 52"] Craig, Listening to your voice it sounds to me that the "pronounced resonant frequencies" are simply a result of the proximity effect (bass boost) from using a typical cardioid microphone at a close range. A simple inverse curve can reduce that bass boost, though the interaction of the proximic effect and each person's mouth cavity resonance for each different vowel, volume, and distance cannot be equalized with a single "one size fits all" filter. I couldn't quickly find an example of the SM-7B proximity curves, but although they would be a bit less than the attached Beta 58, you may get as much as 10 dB (twice as loud) bass boost moving from 3 inches to "kissing" the screen. Using a good omnidirectional microphone pretty much eliminates the proximic effect, but allows more level from the reverse side in to the recording, a problem in noisy environments. If you need the cardioid pattern, but want to avoid the proximic effect, using an EV RE-10, RE-20, RE-27 or Shure KSM8, SM-53 or SM-54 are all good choices. They will allow you to "work the mic" distance without affecting the tonal balance near as much as the mics you have been using. Art [/QUOTE]
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Help needed in resolving mudiness & resonant frequencies
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