|Contribution to the 100th AES Convention
|Thilo Thiede, Ernst Kabot
|A New Perceptual Quality Measure for Bit Rate Reduced Audio
|For the quality evaluation of perceptual audio codecs, appropriate measurement algorithms are needed, which detect and assess audible artefacts by comparing the output of the codec with the uncoded reference. A filter bank based perceptual model is presented, which yields better temporal resolution than FFT-based approaches and thus allows a more precise modelling of pre- and post-masking and a refined analysis of the envelopes within each filter channel.