Perceptual Assessment of Distortion in Low-Frequency Loudspeakers

Fielder L, Smithers M. Perceptual Assessment of Distortion in Low-Frequency Loudspeakers. In: AES Convention 147. Audio Engineering Society; 2019. Paper 10242. Available from: https://aes.org/publications/elibrary-page/?id=20615

@inproceedings{Fielder2019_20615,
  author = {Fielder, Louis and Smithers, Michael},
  title = {{Perceptual Assessment of Distortion in Low-Frequency Loudspeakers}},
  booktitle = {AES Convention 147},
  note = {Paper 10242},
  year = {2019},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20615}
}

TY  - CPAPER
TI  - Perceptual Assessment of Distortion in Low-Frequency Loudspeakers
AU  - Fielder, Louis
AU  - Smithers, Michael
T2  - AES Convention 147
M1  - Paper 10242
PY  - 2019
DA  - 2019/10/06
UR  - https://aes.org/publications/elibrary-page/?id=20615
PB  - Audio Engineering Society
LA  - en
AB  - A perceptually-driven distortion metric for loudspeakers is proposed that is based on a critical-band spectral comparison of the distortion and noise to an appropriate masking threshold. The loudspeaker is excited by a sine-wave signal composed of windowed 0.3 second bursts. Loudspeaker masking curves for sine waves between 20–500 Hz are derived from previously published ones for headphone distortion evaluation and expanded to curves at 1 decibel increments by linear interpolation and extrapolation. For each burst, the ratios of measured distortion and noise levels to the appropriate masking curve values are determined for each critical band starting at the second harmonic. Once this is done the audibility of all these contributions are combined into various audibility values.
ER  -