A set of equations for numerically calculating the interaural level difference in the horizontal plane

Akeroyd, Michael A.; Firth, Jennifer; Graetzer, Simone; Smith, Samuel

Abstract

The variation of interaural level difference (ILD) with direction and frequency is particularly complex and convoluted. The purpose of this work was to determine a set of parametric equations that can be used to calculate ILDs continuously at any value of frequency and azimuth in the horizontal plane. They were derived by fitting equations to ILDs derived from the azimuthal-dependence data tabulated by Shaw and Vaillancourt [(1985). J. Acoust. Soc Am. 78, 1120–1123] and assuming left-right symmetry. The equations are shown to fit those data to an overall RMS error less than 0.5 dB.

Citation

Akeroyd, M. A., Firth, J., Graetzer, S., & Smith, S. (2021). A set of equations for numerically calculating the interaural level difference in the horizontal plane. JASA Express Letters, 1(4), 044402. https://doi.org/10.1121/10.0004261

• Journal Article Type: Article
• Acceptance Date: Mar 23, 2021
• Online Publication Date: Apr 23, 2021
• Publication Date: Apr 1, 2021
• Deposit Date: May 4, 2021
• Publicly Available Date: May 4, 2021
• Journal: JASA Express Letters
• Print ISSN: 2691-1191
• Publisher: Acoustical Society of America
• Volume: 1
• Issue: 4
• Pages: 044402
• DOI: https://doi.org/10.1121/10.0004261
• Keywords: Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health
• Publisher URL: https://doi.org/10.1121/10.0004261
• Related Public URLs: https://asa.scitation.org/journal/jel
• Additional Information: Additional Information : ** From Crossref journal articles via Jisc Publications Router **Journal IDs: eissn 2691-1191 **History: published 04-2021; Projects : MR/S002898/1