Perceived magnitude of two-tone-noise complexes: Loudness, annoyance, and noisiness

Publisher Website
Google Scholar
Abstract
An investigation of the perceived effects [by humans] of tonal components was undertaken to establish a broader data base for quantification and prediction of annoyance of sounds containing added tones. The current study was concerned with 2 tone-noise complexes. The stimuli were tone pairs added to a low-pass noise that was attenuated by 5 dB/oct [decibel/octave] > 600 Hz. Overall perceived magnitude is a function of the frequency separation (.DELTA.F) between the tonal components, tone-to-noise ratio and the overall SPL [sound pressure level] of the noise-tone complex. Results obtained with 2 tones are compared to those obtained in an earlier study with single tones [Hellan (1984)]. The observed effects appear relevant to the rules governing loudness summation across frequency, to measurements of psychoacoustic consonance and roughness, and to the issue of mutual masking among the component stimuli. The implications of the findings in relation to proposed tone-correction procedures are also discussed.

This publication has 10 references indexed in Scilit: