Perceptual Audio Coding with Adaptive Non-uniform Time/frequency Tilings Using Subband Merging and Time Domain Aliasing Reduction

Nils Werner; Bernd Edler

ICASSP 2019accepted0 citations

Perceptual Audio Coding with Adaptive Non-uniform Time/frequency Tilings Using Subband Merging and Time Domain Aliasing Reduction

Abstract

In this paper, we investigate the coding efficiency of perceptual coding using an adaptive non-uniform orthogonal filter-bank based on MDCT analysis/synthesis and time domain aliasing reduction. We compare its performance to a system using a traditional adaptive uniform MDCT filterbank with window switching. The comparison is performed using a listening test at two different quantization settings. The statistical evaluation shows that the percetpual quality of the nonuniform filterbank significantly out-performs that of the uniform filterbank by 5 to 10 MUSHRA points.

BibTeX

@inproceedings{icassp2019_perceptualaudioc,
  title = {Perceptual Audio Coding with Adaptive Non-uniform Time/frequency Tilings Using Subband Merging and Time Domain Aliasing Reduction},
  author = {Nils Werner and Bernd Edler},
  booktitle = {ICASSP 2019},
  year = {2019}
}