Initial Investigation of Signal Capture Techniques for Objective Measurement of Spatial Impression Considering Head Movement

Kim C, Mason R, Tim B. Initial Investigation of Signal Capture Techniques for Objective Measurement of Spatial Impression Considering Head Movement. In: AES Convention 124. Audio Engineering Society; 2008. Paper 7331. Available from: https://aes.org/publications/elibrary-page/?id=14461

@inproceedings{Kim2008_14461,
  author = {Kim, Chungeun and Mason, Russell and Tim, Brookes},
  title = {{Initial Investigation of Signal Capture Techniques for Objective Measurement of Spatial Impression Considering Head Movement}},
  booktitle = {AES Convention 124},
  note = {Paper 7331},
  year = {2008},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14461}
}

TY  - CPAPER
TI  - Initial Investigation of Signal Capture Techniques for Objective Measurement of Spatial Impression Considering Head Movement
AU  - Kim, Chungeun
AU  - Mason, Russell
AU  - Tim, Brookes
T2  - AES Convention 124
M1  - Paper 7331
PY  - 2008
DA  - 2008/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14461
PB  - Audio Engineering Society
LA  - en
AB  - In a previous study it was discovered that listeners normally make head movements attempting to evaluate source width and envelopment as well as source location. To accommodate this finding in the development of an objective measurement model for spatial impression, two capturing models were introduced and designed in this research, based on binaural technique: 1) rotating Head And Torso Simulator (HATS), and 2) a sphere with multiple microphones. As an initial study, measurements of interaural time difference (ITD), level difference (ILD) and cross-correlation coefficient (IACC) made with the HATS were compared with those made with a sphere containing two microphones. The magnitude of the differences was judged in a perceptually relevant manner by comparing them with the just-noticeable differences (JNDs) of these parameters. The results showed that the differences were generally not negligible, implying the necessity of enhancement of the sphere model, possibly by introducing equivalents of the pinnae or torso. An exception was the case of IACC, where the reference of JND specification affected the perceptual significance of its difference between the two models.
ER  -