Blind Upmixing for Height and Wide Channels Based on an Image Source Method

Choi S, Hyun DI, Park YC, Lee S, Youn DH. Blind Upmixing for Height and Wide Channels Based on an Image Source Method. In: AES Convention 133. Audio Engineering Society; 2012. Paper 8752. Available from: https://aes.org/publications/elibrary-page/?id=16494

@inproceedings{Choi2012_16494,
  author = {Choi, Sunwoong and Hyun, Dong-il and Park, Young-cheol and Lee, Seokpil and Youn, Dae Hee},
  title = {{Blind Upmixing for Height and Wide Channels Based on an Image Source Method}},
  booktitle = {AES Convention 133},
  note = {Paper 8752},
  year = {2012},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16494}
}

TY  - CPAPER
TI  - Blind Upmixing for Height and Wide Channels Based on an Image Source Method
AU  - Choi, Sunwoong
AU  - Hyun, Dong-il
AU  - Park, Young-cheol
AU  - Lee, Seokpil
AU  - Youn, Dae Hee
T2  - AES Convention 133
M1  - Paper 8752
PY  - 2012
DA  - 2012/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16494
PB  - Audio Engineering Society
LA  - en
AB  - In this paper we present a method of synthesizing the height and wide channel signals for stereo upmx to multichannel format beyond 5.1. To provide an improved envelopment, reflections from ceiling and side walls are considered for the height and wide channel synthesis. Early reflections (ERs) corresponding to the spatial sections covered by the height and wide channel speakers are separately synthesized using the image source method, and the parameters for the ER generation are determined from the primary-to-ambient ratio (PAR) estimated from the stereo signal. Later, the synthesized ERs are mixed with decorrelated ambient signals and transmitted to the respective channels. Subjective listening tests verify that listener envelopment can be improved by using the proposed method.
ER  -