Effect of Horizontal Diffusivity on Loudness

Cabrera D, Miranda L. Effect of Horizontal Diffusivity on Loudness. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8487. Available from: https://aes.org/publications/elibrary-page/?id=16013

@inproceedings{Cabrera2011_16013,
  author = {Cabrera, Densil and Miranda, Luis},
  title = {{Effect of Horizontal Diffusivity on Loudness}},
  booktitle = {AES Convention 131},
  note = {Paper 8487},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16013}
}

TY  - CPAPER
TI  - Effect of Horizontal Diffusivity on Loudness
AU  - Cabrera, Densil
AU  - Miranda, Luis
T2  - AES Convention 131
M1  - Paper 8487
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16013
PB  - Audio Engineering Society
LA  - en
AB  - This study examines how the spatial characteristics of a sound field affect its loudness. In an experiment, listeners adjusted the gain of stimuli so as to match the loudness of a reference stimulus. The experiment was conducted using binaural stimuli presented over headphones – using stimuli that simulated the sound from eight sound sources evenly distributed in a circle around the listener. Four degrees of diffusivity were tested, ranging from a single active sound source, to all eight sources producing decorrelated sound with identical power spectra. Four power spectra were tested: broadband pink noise, and low-, mid- and high-frequency bandpass-filtered pink noise. The study finds that in modeling the binaural loudness summation of the diffuse stimuli, a binaural gain constant about 1 or 2 dB greater than that of the non-diffuse stimuli provides the least error.
ER  -