Investigation of Gain Adjustment in a Personal Assistive Listening System Using Parametric Array Loudspeakers

Peksi S, Gan WS, Tan EL, Ho EC, Medapati SVR. Investigation of Gain Adjustment in a Personal Assistive Listening System Using Parametric Array Loudspeakers. In: AES Convention 137. Audio Engineering Society; 2014. Paper 9168. Available from: https://aes.org/publications/elibrary-page/?id=17491

@inproceedings{Peksi2014_17491,
  author = {Peksi, Santi and Gan, Woon-Seng and Tan, Ee-Leng and Ho, Eu-Chin and Medapati, Satya Vijay Reddy},
  title = {{Investigation of Gain Adjustment in a Personal Assistive Listening System Using Parametric Array Loudspeakers}},
  booktitle = {AES Convention 137},
  note = {Paper 9168},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17491}
}

TY  - CPAPER
TI  - Investigation of Gain Adjustment in a Personal Assistive Listening System Using Parametric Array Loudspeakers
AU  - Peksi, Santi
AU  - Gan, Woon-Seng
AU  - Tan, Ee-Leng
AU  - Ho, Eu-Chin
AU  - Medapati, Satya Vijay Reddy
T2  - AES Convention 137
M1  - Paper 9168
PY  - 2014
DA  - 2014/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17491
PB  - Audio Engineering Society
LA  - en
AB  - Human hearing degrades with ages, which leads to difficulties in viewers of different age groups enjoying television together as they required different audio volumes. To address the problem Simon et al. [1] proposed loudspeaker arrays that boost 10 dB at all frequencies in a narrow spatial zone where hearing-impaired listener is located. This paper presents a different approach using a personal assistive listening (PAL) system that aims to deliver a highly directional sound beam with the required gain amplification through a parametric array loudspeaker to match the hearing profile of a hearing-impaired listener, while delivering normal sound loudness to the rest of normal listeners using conventional electro-dynamic loudspeakers. This paper investigates the gain adjustment of two commercially-available parametric loudspeakers over the frequency range for audiometry testing and relates the gain adjustments to the sound pressure level (SPL) at various positions away from the sound system.
ER  -