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General Discussion
Source recordings & Microphone response
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<blockquote data-quote="u235" data-source="post: 1117349" data-attributes="member: 1485"><p>THis is a fascinating thread, full of insight and happily, very civilised!</p><p></p><p>One thing that hasn't been mentioned is the role played by high frequency modulation of lower frequencies. Chris templer once did a demo for me for me where a)He played a 20Hz sine wave signal. I couldn't hear it. the b) He added a 10Khz modulation to it - I couldnt hear the 10KHz, but now I could hear the very low frequency rumble just fine.</p><p></p><p>So I have a question for the specialists: If a microphone rolls off at say, 16KHz, will it still record a 16KHz modulation of a frequency that is within its range?</p><p></p><p>Another question that interests me is the effect of distance on the way we hear an acoustic instrument. For example, if you stand right next to a piano, it sounds orders of magnitude richer than if you stand say 10m away. Its even richer if you press your forehead against the sounding box. No hifi I have ever heard has reproduced, even vaguely, these dense textures, they are lost regardless of how close the mic was to the instrument. So the question is, is our hearing that much more sensitive to low energies than microphones? And I dont mean sine wave stuff, I mean the tiny modulations of the sound that the instrument provides.</p></blockquote><p></p>
[QUOTE="u235, post: 1117349, member: 1485"] THis is a fascinating thread, full of insight and happily, very civilised! One thing that hasn't been mentioned is the role played by high frequency modulation of lower frequencies. Chris templer once did a demo for me for me where a)He played a 20Hz sine wave signal. I couldn't hear it. the b) He added a 10Khz modulation to it - I couldnt hear the 10KHz, but now I could hear the very low frequency rumble just fine. So I have a question for the specialists: If a microphone rolls off at say, 16KHz, will it still record a 16KHz modulation of a frequency that is within its range? Another question that interests me is the effect of distance on the way we hear an acoustic instrument. For example, if you stand right next to a piano, it sounds orders of magnitude richer than if you stand say 10m away. Its even richer if you press your forehead against the sounding box. No hifi I have ever heard has reproduced, even vaguely, these dense textures, they are lost regardless of how close the mic was to the instrument. So the question is, is our hearing that much more sensitive to low energies than microphones? And I dont mean sine wave stuff, I mean the tiny modulations of the sound that the instrument provides. [/QUOTE]
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Audio and Video Talk
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Source recordings & Microphone response
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