Comparison of Different Impulse Response Measurement Techniques
Stan G.B. and Embrechts J.J. and Archambeau D.
Journal of the Audio Engineering Society, Volume 50, Number 4, Pages 249-262, 2002Abstract
The impulse response of an acoustical space or transducer is one of their most important characterization. In order to perform the measurement of their impulse responses, four of the most suited methods are compared : MLS (Maximum Length Sequence), IRS (Inverse Repeated Sequence), Time-Stretched Pulses and SineSweep. These different methods have already been described in the literature. Nevertheless, the choice of one of these methods depending on the measurement conditions is critical. Therefore, an extensive comparison has been realized. This comparison has been done through the implementation and realization of a complete, fast, reliable and cheap measurement system. Finally, a conclusion for the use of each method according to the principal measurment conditions is presented. It is shown that in the presence of non white noise, the MLS and IRS techniques seem to be more accurate. On the contrary, in quiet environments the Logarithmic SineSweep method seems to be the most appropriate.
BibTex Entry
- @Article{,
- author = {Stan G.B. and Embrechts J.J. and Archambeau D.},
- journal = {Journal of the Audio Engineering Society},
- title = {Comparison of Different Impulse Response Measurement Techniques},
- year = {2002},
- number = {4},
- pages = {249-262},
- volume = {50}
- }
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