The Loudspeaker-Room Interface-Controlling Excitation of Room Modes

Wilson R, Capp MD, Stuart JR. The Loudspeaker-Room Interface-Controlling Excitation of Room Modes. In: AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction. Audio Engineering Society; 2003. Paper 8. Available from: https://aes.org/publications/elibrary-page/?id=12329

@inproceedings{Wilson2003_12329,
  author = {Wilson, Rhonda and Capp, Michael D. and Stuart, J. Robert},
  title = {{The Loudspeaker-Room Interface-Controlling Excitation of Room Modes}},
  booktitle = {AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction},
  note = {Paper 8},
  year = {2003},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12329}
}

TY  - CPAPER
TI  - The Loudspeaker-Room Interface-Controlling Excitation of Room Modes
AU  - Wilson, Rhonda
AU  - Capp, Michael D.
AU  - Stuart, J. Robert
T2  - AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction
M1  - Paper 8
PY  - 2003
DA  - 2003/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12329
PB  - Audio Engineering Society
LA  - en
AB  - Room modes occur due to the superposition of standing waves. In the low frequency range modal overlap tends to be negligible, and some modes can be particularly dominant. When listening to audio material in a room with strong room modes unwanted characteristics are observed, such as significant reverberation, boominess at particular frequencies, and apparent pitch changes as a tone at one frequency excites and is then dominated by a strong resonance at a slightly different frequency. These undesirable audible effects can be considerably reduced by prefiltering the signal. This paper derives the pre-filter required and investigates the psychoacoustic criteria required to optimise the pre-filter.
ER  -