The impulse response (IR) and its associated Fourier transform, the complex transfer function (TF), describe the linear transmission properties of any system able to transport or transform energy in a certain frequency range. As the name suggests, the IR is the response in time at the output of a system under test when an infinitely narrow impulse is fed into its input (Figure 1).
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References
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Further Reading
G.-B. Stan, J. J. Embrechts, D. Archambeau, “Comparison of Different Impulse Response Measurement Techniques”, J. Audio Eng. Soc., April 2002, pp. 249–262
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Müller, S. (2008). Measuring Transfer-Functions and Impulse Responses. In: Havelock, D., Kuwano, S., Vorländer, M. (eds) Handbook of Signal Processing in Acoustics. Springer, New York, NY. https://doi.org/10.1007/978-0-387-30441-0_5
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