AES E-Library

Anchor Signals Validation for Two Dimensions of a Four-Dimensional Perceptive Space

The subjective assessment of speech and sound codecs requires anchor signals to ensure its reliability. The reference system currently used is Modulated Noise Reference Unit (MNRU) which simulates only quantization noise. Now, the new generations of codecs present other impairments. In this study, we consider speech quality as a multidimensional phenomenon and use dimensional reduction techniques to project codecs' impairments in a four dimensional space, each axis of the perceptive space corresponding to one of them. A verbalization test allowed characterizing two of these dimensions by the following attributes: “muffle” and “background noise” anchor signals were designed for these two dimensions, and a statistical analysis allowed validating the accuracy of at least one of these signals.

Authors: Zango, Yves; ;Le Bouquin-Jeannès, Régine; Costet, Nathalie; Quinquis, Catherine
Affiliations: France Télécom (Orange Labs), Lannion Cedex, France; Laboratoire Traitement du Signal et de l'Image (LTSI), Rennes, France; INSERM, Rennes, France(See document for exact affiliation information.)
AES Convention:130 (May 2011) Paper Number:8372 Import into BibTeX
Subject:Posters: Perception and Evaluation

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 130Papers)   /130/8372.pdf

Start a discussion about this paper!