| 摘要 |
<p>A method of measuring an impulse response of an amplifier (50) coupled in operation to a loudspeaker arrangement (60 includes:
(a) coupling directly to a connection between the amplifier (50) and the loudspeaker arrangement (60) for obtaining access to a drive signal (S amp ) applied to the loudspeaker arrangement (60) to generate an acoustic output (S 2 );
(b) disposing a microphone arrangement (220) for receiving the acoustic output (S 2 ) of the loudspeaker arrangement (60);
(c) using a test signal generator (230) to apply a test signal (S sw ) to an input of the amplifier (50); and
(d) receiving at a digital signal processing arrangement (DSP, 210) at least the drive signal (S amp ) and the acoustic output (S 2 ) corresponding to the test signal (S sw ) and performing on these signals a signal processing operation for determining an impulse response (250) for at least one of: the amplifier (50), the loudspeaker arrangement (60).</p> |
