Subjective Evaluation of Multichannel Upmix Method Based on Interchannel Coherent Component Extraction

Hashimoto Y, Goto Y, Ando A. Subjective Evaluation of Multichannel Upmix Method Based on Interchannel Coherent Component Extraction. In: AES Convention 144. Audio Engineering Society; 2018. Paper 9979. Available from: https://aes.org/publications/elibrary-page/?id=19496

@inproceedings{Hashimoto2018_19496,
  author = {Hashimoto, Yuta and Goto, Yasuto and Ando, Akio},
  title = {{Subjective Evaluation of Multichannel Upmix Method Based on Interchannel Coherent Component Extraction}},
  booktitle = {AES Convention 144},
  note = {Paper 9979},
  year = {2018},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19496}
}

TY  - CPAPER
TI  - Subjective Evaluation of Multichannel Upmix Method Based on Interchannel Coherent Component Extraction
AU  - Hashimoto, Yuta
AU  - Goto, Yasuto
AU  - Ando, Akio
T2  - AES Convention 144
M1  - Paper 9979
PY  - 2018
DA  - 2018/05/06
UR  - https://aes.org/publications/elibrary-page/?id=19496
PB  - Audio Engineering Society
LA  - en
AB  - We developed a method that extracted the interchannel coherent component from multichannel audio signal. In this paper two subjective evaluation experiments for testing the upmix performance of our method are shown. In the first experiment, stereo signals were upmixed to 4-channel signals in which channels were set at +-30° and +-60°. The subjective evaluation with MUSHRA method showed that our method was superior to the conventional methods. In the second experiment, signals of 4 channels located at +-30° and +-110° were upmixed to 8-channel signals in which four of the channels were set at the upper layer. The subjective evaluation showed that there were no significant differences between the upmixed 8-channel sound and the original 4-channel sound in terms of spatial impression.
ER  -