Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Compression Artifacts in Perceptual Audio Coding
Perceptual audio coding achieves high compression ratio by exploiting the perceptual irrelevance and data redundancies. By the use of advanced and sophisticated signal processing techniques, perceptual coding has generated artifacts sounding very different from the traditional distortions. In audio industry, it is always an important step to maturing a technology by modeling, measuring, and listening the artifacts induced from the technology. In the past, there have been some types of artifacts defined in linear quantization or MP3 music tracks. With the advance of the new coding modules in AAC, SBR, and parametric coding, various new types of artifacts are generated. This paper models the frequently induced audible artifacts and analyzes the problematic encoder modules.
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.