Distortion and clipping in audio, automatic detection and metering

Kendrick, P, Jackson, IR, Li, FF, Cox, TJ and Fazenda, BM 2015, Distortion and clipping in audio, automatic detection and metering [Dataset]. (Submitted)

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Access Information: Details of the program are available through the Official URL, and it is free for non-commercial purposes, under Attribution-NonCommercial 4.0 International (CC BY-NC) license

Abstract

For field recordings and user generated content recorded on phones, tablets and other mobile devices, nonlinear distortions caused by clipping and limiting at pre-amplification stages and dynamic range control (DRC), are common causes of poor audio quality. This repository contains a database of raw perceptual response data from experiments carried out to quantify the level of degradation to quality when music and soundscapes are corrupted with amplitude distortions. Also available is a program which analyses an audio file and detects clipping type distortions with no reference to the clean audio. The algorithm produces a perceptually weighted value of the level of distortion in an audio file. The algorithm is available as a C++ program (requires compiling using a C++ compiler) and runs as a command line executable which analyses a wavfile and provides information as regards the level, location and effect on quality of any distortion that may be present.

Item Type: Dataset
Schools: Schools > School of Computing, Science and Engineering
Funders: Engineering and Physical Sciences Research Council (EPSRC)
Depositing User: P Kendrick
Date Deposited: 20 Jul 2015 11:04
Last Modified: 05 Apr 2016 19:31
URI: http://usir.salford.ac.uk/id/eprint/35954

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