Determination and Validation of Mix Parameters for Modifying Envelopment in Object-Based Audio

Francombe J, Brookes T, Mason R. Determination and Validation of Mix Parameters for Modifying Envelopment in Object-Based Audio. J Audio Eng Soc. 2018;66(3):127-145. doi:10.17743/jaes.2018.0011

@article{Francombe2018_19381,
  author = {Francombe, Jon and Brookes, Tim and Mason, Russell},
  title = {{Determination and Validation of Mix Parameters for Modifying Envelopment in Object-Based Audio}},
  journal = {Journal of the Audio Engineering Society},
  volume = {66},
  number = {3},
  pages = {127--145},
  year = {2018},
  month = mar,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2018.0011},
  url = {https://doi.org/10.17743/jaes.2018.0011}
}

TY  - JOUR
TI  - Determination and Validation of Mix Parameters for Modifying Envelopment in Object-Based Audio
AU  - Francombe, Jon
AU  - Brookes, Tim
AU  - Mason, Russell
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 66
IS  - 3
SP  - 127
EP  - 145
PY  - 2018
DA  - 2018/03/06
DO  - 10.17743/jaes.2018.0011
UR  - https://doi.org/10.17743/jaes.2018.0011
PB  - Audio Engineering Society
LA  - en
AB  - With object-based audio transmission, a scene is distributed as a set of audio objects, as opposed to discrete audio channels. An object comprises an audio stream for a particular aspect of the scene, accompanied by some metadata, such as the desired level and spatial position of the object. Object-based audio offers the possibility of altering the rendering of an audio scene in order to modify or maintain perceptual attributes if the relationships between attributes and mix parameters are known. This research aims to determine the relationship between parameters of an object-based mix and the perception of envelopment (an important attribute of spatial audio reproduction systems), and to develop and test a system for manipulating envelopment in object-based audio in a perceptually relevant manner. An experiment was performed in which mixing engineers were asked to create mixes of object-based content at three levels of envelopment (low, medium, and high) while keeping the overall mix quality at an acceptable level. This enabled analysis of parameter values in order to assess how participants created different levels of envelopment. It was shown in a validation experiment that these parameters could be used to adjust envelopment to a target level.
ER  -