TIMBRAL CORRECTION OF AUDIO REPRODUCTION SYSTEMS BASED ON MEASURED DECAY TIME OR REVERBERATION TIME
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United States of America Patent
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Issued Date -
Apr 29, 2010
app pub date -
Mar 17, 2008
filing date -
Mar 15, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method and system for use in directly adjusting the timbre of a reproduced audio signal in any closed or partially enclosed space according to the measured reverberation time or other function describing the decay of sound within the space. The measurement of the reverberation time and the correction of the timbre are performed by a system that can be incorporated within the installed audio reproduction system, although a separate measuring system could alternatively be used. The measurement of decay time or reverberation time for the space is by known methods. The invention centres around the calculation and application of a correction filter determined directly from the measured decay time or reverberation time for the space.
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