Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
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.
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.