 The Oboe BBoard
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Author: Mark Charette
Date: 2007-09-04 22:21
d-oboe wrote:
> More vibration = more loudness =more projection.
Actually - not really.
Apparent loudness is a non-linear function of frequency.
Higher frequencies contain more power for the same amplitude.
_for a given frequency_, a higher amplitude of a waveform will be "louder".
_for a range of frequencies_ driven at the same amplitude, the power will be concentrated in the higher frequencies.
For a musical instrument with overtones - the overtones _may_ carry more power than the fundamental
To the human ear - the apparent loudness does not not follow a simple algorithm; rather, it responds differently to different frequencies - depending on the acoustic power (see http://hyperphysics.phy-astr.gsu.edu/hbase/sound/eqloud.html for instance
Projection depends on all the above - plus the competition of the general sound of the orchestra at that moment.
projection/apparent loudness is a very complicated thing. Opera singers and musicians both understand the problem innately, but quantifying it takes a bit of work.
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cjwright |
2007-09-04 17:31 |
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d-oboe |
2007-09-04 19:42 |
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Mark Charette |
2007-09-04 22:21 |
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A.U.K |
2007-09-04 19:43 |
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cjwright |
2007-09-04 20:46 |
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mschmidt |
2007-09-04 22:55 |
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vboboe |
2007-09-05 04:43 |
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mschmidt |
2007-09-05 04:48 |
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A.U.K |
2007-09-05 15:55 |
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sylvangale |
2007-09-06 05:23 |
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