Robust system for sound enhancement from a single engine sensor
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United States of America Patent
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Oct 30, 2012
Grant Date -
Nov 24, 2005
app pub date -
May 3, 2005
filing date -
May 21, 2004
priority date (Note) -
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Abstract
A noise enhancement system for an automobile utilizes a single input of engine speed to derive a control signal used to drive a speaker. The speaker generates sounds that enhance or replicate the desired sounds from the engine. The output from the speaker is crafted dependent on the vehicle operating conditions. Instead of multiple transducers and inputs the noise enhancement system of this invention utilizes the single input of engine RPM engine speed. By utilizing only engine speed, the noise enhancement system is cost effective and significantly less complex.
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