Verified implementations of the Sottek psychoacoustic Hearing Model standardised sound quality metrics (ECMA-418-2 loudness, roughness and tonality

Lotinga, Michael; Torjussen, Matt; Felix Greco, Gil

Abstract

Metrics for describing perceptual sound qualities have previously been developed from a variety of psychoa- coustic models. The Sottek Hearing Model (SHM) of- fers a holistic approach to characterising perceptual sound quality and the SHM metrics for loudness, tonality and roughness have been defined in an international stan- dard, ECMA-418-2. Implementations of the ECMA-418- 2 standardised sound quality metrics have been developed, documented and verified using both simple test signals and field audio recordings of complex sound scenes, and have also been made available in the open-source software package ‘SQAT’ (Sound Quality Analysis Toolbox). The metrics, implementation, application and usage guidance are outlined alongside presentation of example verifica- tion cases, demonstrating the accuracy and capabilities of the tools.

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 11th Convention of the European Acoustics Association
• Start Date: Jun 23, 2025
• End Date: Jun 26, 2025
• Acceptance Date: Apr 28, 2025
• Online Publication Date: Jun 23, 2025
• Publication Date: Jun 23, 2025
• Deposit Date: Jul 4, 2025
• Publicly Available Date: Jul 4, 2025
• Peer Reviewed: Not Peer Reviewed