Combination of different perceptual models with different audio transform coding schemes: implementation and evaluation

Taghipour A, Knölke N, Edler B, Ostermann J (2010)

Publication Type: Conference contribution

Publication year: 2010

Conference Proceedings Title: 129th Audio Engineering Society Convention

URI: http://www.aes.org/e-lib/browse.cfm?elib=15705

Abstract

In this paper four combinations of perceptual models and transform coding systems are implemented and compared. The first of the two perceptual models is based on a DFT with a uniform frequency resolution. The second model uses IIR filters designed in accordance with the temporal/spectral resolution of the auditory system. Both of the two transform coding systems use a uniform spectral decomposition (MDCT). While in the first system the quantizers are directly controlled by the perceptual model, the second system uses a pre- and post-filter with frequency warping for shaping the quantization noise with a temporal/spectral resolution more adapted to the auditory system. Implementation details are given and results of subjective tests are presented.

 

Authors with CRIS profile

Armin Taghipour Lehrstuhl für Audiosignalanalyse (AudioLabs) (Stiftungslehrstuhl) Bernd Edler Lehrstuhl für Audiosignalanalyse (AudioLabs) (Stiftungslehrstuhl)

Involved external institutions

Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE) Medizinische Hochschule Hannover (MHH) / Hannover Medical School DE Germany (DE)

How to cite

APA:

Taghipour, A., Knölke, N., Edler, B., & Ostermann, J. (2010). Combination of different perceptual models with different audio transform coding schemes: implementation and evaluation. In 129th Audio Engineering Society Convention.

MLA:

Taghipour, Armin, et al. "Combination of different perceptual models with different audio transform coding schemes: implementation and evaluation." Proceedings of the 129th Audio Engineering Society Convention 2010.

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