Comb-Filter Distortions and Their Perception in Sound Reinforcement Systems

Ahnert W. Comb-Filter Distortions and Their Perception in Sound Reinforcement Systems. In: AES Convention 84. Audio Engineering Society; 1988. Paper 2565. Available from: https://aes.org/publications/elibrary-page/?id=4837

@inproceedings{Ahnert1988_4837,
  author = {Ahnert, Wolfgang},
  title = {{Comb-Filter Distortions and Their Perception in Sound Reinforcement Systems}},
  booktitle = {AES Convention 84},
  note = {Paper 2565},
  year = {1988},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=4837}
}

TY  - CPAPER
TI  - Comb-Filter Distortions and Their Perception in Sound Reinforcement Systems
AU  - Ahnert, Wolfgang
T2  - AES Convention 84
M1  - Paper 2565
PY  - 1988
DA  - 1988/03/06
UR  - https://aes.org/publications/elibrary-page/?id=4837
PB  - Audio Engineering Society
LA  - en
AB  - Parting from an exposition of the mathematical-physical background for the occurrence of comb-filter distortions, the relations between level proportions, periodicity and delay times in signal sequences are explained with respect to this phenomenon. Derived from this are spectator areas in simple sound-reinforcement constellations where the comb-filter effect disturbs only little or not at all. Diagrams showing the probable audibility of comb-filter distortions are given. All these investigation results are backed up by subjective tests showing the level sequences and ratios at which disturbing comb-filter distortions are no longer perceptible. Finally an attempt is made to give recommendations as to how this disturbing effect can be avoided beforehand in sound reinforcement installations using slightly delayed signal pressure, as e.g. Delta Stereophony Systems.
ER  -