An adaptive amplitude distortion effect for audio production is introduced. We consider a versatile model of multiband waveshaping with a limited set of intuitive parameters. We propose a method for adaptive scaling of the characteristic amplitude distortion transfer function. A number of methods to automate other distortion parameters are explored, such as automatic balance between clean and d...

In two experiments we determined the electrophysiological substrates of figural aftereffects in face adaptation using compressed and expanded faces. In Experiment 1, subjects viewed a series of compressed and expanded faces. Results demonstrated that distortion systematically modulated the peak amplitude of the P250 event-related potential (ERP) component. As the amount of perceived distortion ...

The spectral factorization approach to pseudo-QMF design doesn't involve any optimization in order to obtain the prototype filter used in the cosine modulation. In this paper, the initial phase factor influence on amplitude distortion is analyzed and a new expression to design pseudo-QMF bank without restriction on the filter's length is proposed. This filter bank introduces a very small aliasi...

It is well known that Spread Transform Dither Modulation (STDM) is more robust to re-quantization such as JPEG compression than regular Quantization Index (QIM) does. However, STDM introduces relatively higher perceptual distortion and is quite sensitive to amplitude scaling, which is actually a quite common processing. In this paper, we propose algorithms to reduce perceptual distortion and to...