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In this paper, we propose two modifications to reduce the complexity of the subcarrier-multiplexing (SCM) based digital backpropagation (DBP) for high symbol rate SCM systems. The first one is to reduce the number of interfering subcarriers (RS-SCM-DBP) when evaluating the cross-subcarrier nonlinearity (CSN). The second one is to replace the original frequency domain CSN filters with the infini...

The first stage of all cochlear implant speech processing strategies is a filterbank which decomposes the speech signal into several frequency bands. Two types of filterbanks can be used to achieve this goal and mimic the spectral analysis performed within the cochlea. The first is based on the Fast Fourier Transform (FFT). The second type of filterbank is composed of Infinite Impulse Response ...

We introduce three new Max/MSP signal processing extensions that efficiently implement IIR filters: biquadbank~, peqbank~ and resonators~. After describing their common properties, specific features and new support objects, we conclude the paper with a summary of their musical applications.

A comparison of various low-pass filter architectures that are commonly used in Sigma-Delta ( C A ) demodulators is presented in the paper. In this comparison the conventional demodulator filter architectures such as the optimal FIR filter, Sinck filter and non-linear Zoomer filter are considered. It is shown that the optimum FIR filter provides the most attractive properties among the conventi...

Absfruct-In this study an algorithm for multichannel adaptive IIR filtering is presented and applied to the active control of broadband random noise in a small reverberant room. Assuming complete knowledge of the primary noise, the theoretically optimal reductions of acoustic energy are initially calculated by means of a frequency-domain modal model. These results are contrasted with results of...

This paper presents a new method for designing two-channel IIR linear phase filter banks that satisfy both the perfect reconstruction and stability conditions, using allpass filters. Using the perfect reconstruction condition for filter banks, we first offer a class of structurally perfect reconstruction implementations. Since the proposed filter banks must satisfy the perfect reconstruction co...