Temporal Envelope-Based Psychoacoustic Modelling for Evaluating Non-Waveform Preserving Audio Codecs

van de Par S, Disch S, Niedermeier A, Burdiel E, Edler B (2019)

Publication Type: Conference contribution

Publication year: 2019

Conference Proceedings Title: Audio Engineering Society

Abstract

Masking models that evaluate the audibility of error signals have a limited validity for assessing perceptual quality of parametric codecs. We propose a model that transforms the audio signal into an Internal Representation (IR) consisting of temporal-envelope modulation patterns. Subsequently, the IR of original and encoded signals are compared between both signals. Even though the audio signals compared may be uncorrelated, leading to a large error signal, they may exhibit a very similar IR and hence are predicted to sound very similar. Additional post-processing stages modeling higher-level auditory perceptual phenomena such as Comodulation Masking Release are included. Predictions are compared against subjective quality assessment results obtained with encoding methods ranging from parametric processing methods up to classic waveform preserving codecs.

Authors with CRIS profile

Sascha Disch International Audio Laboratories Erlangen (AudioLabs) Bernd Edler Lehrstuhl für Audiosignalanalyse (AudioLabs) (Stiftungslehrstuhl)

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE) Carl von Ossietzky Universität Oldenburg DE Germany (DE)

How to cite

APA:

van de Par, S., Disch, S., Niedermeier, A., Burdiel, E., & Edler, B. (2019). Temporal Envelope-Based Psychoacoustic Modelling for Evaluating Non-Waveform Preserving Audio Codecs. In Audio Engineering Society.

MLA:

van de Par, Steven, et al. "Temporal Envelope-Based Psychoacoustic Modelling for Evaluating Non-Waveform Preserving Audio Codecs." Proceedings of the Audio Engineering Society 2019.

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