Tactile Signal Derivation Part 2: Extracting Haptic Information from Traditional Audio

Oxnard SG, Stanhope E, Hobden LJ. Tactile Signal Derivation Part 2: Extracting Haptic Information from Traditional Audio. In: AES Convention 154. Audio Engineering Society; 2023. Paper 74. Available from: https://aes.org/publications/elibrary-page/?id=22099

@inproceedings{Oxnard2023_22099,
  author = {Oxnard, Stephen G. and Stanhope, Ethan and Hobden, Laurence J.},
  title = {{Tactile Signal Derivation Part 2: Extracting Haptic Information from Traditional Audio}},
  booktitle = {AES Convention 154},
  note = {Paper 74},
  year = {2023},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22099}
}

TY  - CPAPER
TI  - Tactile Signal Derivation Part 2: Extracting Haptic Information from Traditional Audio
AU  - Oxnard, Stephen G.
AU  - Stanhope, Ethan
AU  - Hobden, Laurence J.
T2  - AES Convention 154
M1  - Paper 74
PY  - 2023
DA  - 2023/05/06
UR  - https://aes.org/publications/elibrary-page/?id=22099
PB  - Audio Engineering Society
LA  - en
AB  - The reception of sound commonly consists of significant tactile sensations in combination with auditory phenomena. This is particularly evident in the reception of high sound pressure level events. The use of tactile sensations, referred to as “haptics”, is becoming increasingly commonplace in entertainment systems particularly within cinema, video gaming, automotive and virtual reality industries. However, the vast majority of audio content formats do not feature dedicated haptic signals and, therefore, such signals must be derived from the original content, with particular attention to the parameters of timing, intensity, and frequency. Various haptic actuators that are commercially available in the market differ in terms of their transient performance and capability to deliver energy. In such instances, manipulation of audio content, via filtering and transient modification, can create suitable tactile content consistent with the source audio and compatible with the drive unit receiving it. In this paper, a range of techniques for vibrotactile signal generation focusing on parameters of timing and intensity are discussed and compared in terms of performance. This includes the quantification of dynamic haptic transducer characteristics rendered by means of practical measurements and analysis of measured response data. It is demonstrated that the metrics derived from analysis may be, in turn, applied to inform the tuning of transducer responses over a range of transducers with different physical properties. As such, this work informs future development and evaluation of haptics reproduction technologies.
ER  -