Transient-To-Noise Ratio Restoration of Coded Applause-Like Signals

Adami A, Herzog A, Disch S, Herre J (2017)

Publication Language: English

Publication Type: Conference contribution, Original article

Publication year: 2017

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 349-353

Conference Proceedings Title: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics

Event location: Mohonk, New Paltz, NY, USA US

ISBN: 9781538616321

DOI: 10.1109/WASPAA.2017.8170053

Abstract

Coding of signals with high amount of dense transient events, like applause, rain drops, etc., is usually a difficult task for perceptual audio coders. Especially at low bit rates, coding (and the associated coding noise) leads to smeared transients and a perceived increase in noise-like signal character. We propose a post-processing technique for coded/decoded applause-like signals which is based on a signal decomposition into foreground (transient) clap events and a more noise-like background part. The proposed method aims at restoring the transient-To-noise ratio of the decoded signal using a static frequency-dependent restoration profile. The method is shown to provide a significant improvement in subjective audio quality (MUSHRA score) when applied to signals originating from a state-of-The-Art audio codec in different configurations.

Authors with CRIS profile

Alexander Adami Lehrstuhl für Audiocodierung (AudioLabs) (Stiftungslehrstuhl) Adrian Herzog International Audio Laboratories Erlangen (AudioLabs) Jürgen Herre

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE)

How to cite

APA:

Adami, A., Herzog, A., Disch, S., & Herre, J. (2017). Transient-To-Noise Ratio Restoration of Coded Applause-Like Signals. In IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (pp. 349-353). Mohonk, New Paltz, NY, USA, US: Institute of Electrical and Electronics Engineers Inc..

MLA:

Adami, Alexander, et al. "Transient-To-Noise Ratio Restoration of Coded Applause-Like Signals." Proceedings of the 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017, Mohonk, New Paltz, NY, USA Institute of Electrical and Electronics Engineers Inc., 2017. 349-353.

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