Energetic Sound Field Analysis of Stereo and Multichannel Loudspeaker Reproduction

Merimaa J. Energetic Sound Field Analysis of Stereo and Multichannel Loudspeaker Reproduction. In: AES Convention 123. Audio Engineering Society; 2007. Paper 7257. Available from: https://aes.org/publications/elibrary-page/?id=14315

@inproceedings{Merimaa2007_14315,
  author = {Merimaa, Juha},
  title = {{Energetic Sound Field Analysis of Stereo and Multichannel Loudspeaker Reproduction}},
  booktitle = {AES Convention 123},
  note = {Paper 7257},
  year = {2007},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14315}
}

TY  - CPAPER
TI  - Energetic Sound Field Analysis of Stereo and Multichannel Loudspeaker Reproduction
AU  - Merimaa, Juha
T2  - AES Convention 123
M1  - Paper 7257
PY  - 2007
DA  - 2007/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14315
PB  - Audio Engineering Society
LA  - en
AB  - Energetic sound field analysis has been previously applied to encoding the spatial properties of multichannel signals. This paper contributes to the understanding of how stereo or multichannel loudspeaker signals transform into energetic sound field quantities. Expressions for the active intensity, energy density, and energetic diffuseness estimate are derived as a function of signal magnitudes, cross-correlations, and loudspeaker directions. It is shown that the active intensity vector can be expressed in terms of the Gerzon velocity and energy vectors, and its direction can be related to the tangent law of amplitude panning. Furthermore, several cases are identified where the energetic analysis data may not adequately represent the spatial properties of the original signals.
ER  -