What is an impulse response?# The impulse response of a system consists in exciting the system with a test signal and then measuring the system output. When we have a recording of the test signal and the output signal, we can subtract the former from the latter to obtain a measurement of how the system responds to any part of the signal. In acoustics, a similar technique is used for measuring room responses. You start out with a test signal covering the range of frequencies you’re intereste...
