Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds

Kleczkowski P, Krol A, Malecki P. Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds. J Audio Eng Soc. 2015;63(6):427-442. doi:10.17743/jaes.2015.0054

@article{Kleczkowski2015_17822,
  author = {Kleczkowski, Piotr and Krol, Aleksandra and Malecki, Pawel},
  title = {{Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds}},
  journal = {Journal of the Audio Engineering Society},
  volume = {63},
  number = {6},
  pages = {427--442},
  year = {2015},
  month = jun,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2015.0054},
  url = {https://doi.org/10.17743/jaes.2015.0054}
}

TY  - JOUR
TI  - Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds
AU  - Kleczkowski, Piotr
AU  - Krol, Aleksandra
AU  - Malecki, Pawel
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 63
IS  - 6
SP  - 427
EP  - 442
PY  - 2015
DA  - 2015/06/06
DO  - 10.17743/jaes.2015.0054
UR  - https://doi.org/10.17743/jaes.2015.0054
PB  - Audio Engineering Society
LA  - en
AB  - Some researchers believe that the reproduction of multichannel spatial audio would be improved by using separate transducers for the direct and diffuse components of the sound. This research seeks to empirically test this assumption. The perceptual effect of angular separation in commonly used 5.0 and 7.0 multichannel systems was investigated. Four listening experiments were performed involving several schemes of separation and a variety of experimental conditions. The listeners consistently preferred schemes with separation. The perceptual effects of four types of management of direct and reflected parts of spatial impulse responses (SIR) were considered: using complete SIRs in all channels; removing the direct sound (DS) from all but the center channel in a standard 5.0 system; removing ambience from the center channel in a standard 5.0 system; applying both of the above operations (separating DS from reflected sounds RS in particular channels). Depending on the configuration, separation did in fact have advantages.
ER  -