Journal Forum

Sound Board: High-Resolution Audio - October 2015

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

Access Journal Forum

AES E-Library

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

Document Thumbnail

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.

AES Convention: Paper Number:
Publication Date:

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:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society