In a method of processing an input signal, the input signal is divided into a plurality of subbands with the aid of bank of complex valued, single-sided subband filters. The single-sided frequency spectra of the resulting subbands make aliasing negligible at near twice the critical downsampling rates.

In un metodo di elaborazione del segnale in ingresso, il segnale in ingresso è diviso in una pluralità di subbands con l'aiuto della banca del complesso stimata, subband single-sided filtra. Le gamme single-sided di frequenza di subbands risultanti rendono a aliasing trascurabili a vicino due volte i tassi downsampling critici.

 
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< Single-sided subband filters

< Single-sided subband filters

> Synchronization of voice boundaries and their use by echo cancellers in a voice processing system

> Digital access arrangement circuitry and method having a synthesized ringer impedance for connecting to phone lines

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