Method and apparatus for impulse response measurement and simulation
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United States of America Patent
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Dec 1, 2015
Grant Date -
Jan 24, 2013
app pub date -
Jul 20, 2012
filing date -
Jul 22, 2011
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Abstract
A method of measuring an impulse response of an amplifier coupled in operation to a loudspeaker arrangement includes:
- (a) coupling directly to a connection between the amplifier and the loudspeaker arrangement for obtaining access to a drive signal (Samp) applied to the loudspeaker arrangement to generate an acoustic output (S2);(b) disposing a microphone arrangement for receiving the acoustic output (S2) of the loudspeaker arrangement;(c) using a test signal generator to apply a test signal (Ssw) to an input of the amplifier; and(d) receiving at a digital signal processing arrangement (DSP, 210) at least the drive signal (Samp) and the acoustic output (S2) corresponding to the test signal (Ssw) and performing on these signals a signal processing operation for determining an impulse response for at least one of: the amplifier, the loudspeaker arrangement.
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