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Modelling Timbral Hardness

Pearce, Andy, Brookes, Tim and Mason, Russell (2019) Modelling Timbral Hardness Applied Sciences, 9 (3).

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Abstract

Hardness is the most commonly searched timbral attribute within freesound.org, a commonly used online sound effect repository. A perceptual model of hardness was developed to enable the automatic generation of metadata to facilitate hardness-based filtering or sorting of search results. A training dataset was collected of 202 stimuli with 32 sound source types, and perceived hardness was assessed by a panel of listeners. A multilinear regression model was developed on six features: maximum bandwidth, attack centroid, midband level, percussive-to-harmonic ratio, onset strength, and log attack time. This model predicted the hardness of the training data with R2 = 0.76. It predicted hardness within a new dataset with R2 = 0.57, and predicted the rank order of individual sources perfectly, after accounting for the subjective variance of the ratings. Its performance exceeded that of human listeners.

Item Type: Article
Divisions : Faculty of Arts and Social Sciences > Department of Music and Media
Authors :
NameEmailORCID
Pearce, Andyandy.pearce@surrey.ac.uk
Brookes, TimT.Brookes@surrey.ac.uk
Mason, RussellR.Mason@surrey.ac.uk
Date : 30 January 2019
DOI : 10.3390/app9030466
Copyright Disclaimer : 2019 by the authors
Depositing User : Charlene King
Date Deposited : 15 Feb 2019 15:44
Last Modified : 05 Mar 2019 10:13
URI: http://epubs.surrey.ac.uk/id/eprint/850447

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