Patent ID: 7596490
Filing Date: 2009-09-29
Classification: G10L

Abstract:
1. A method of encoding a signal, the method comprising the steps of: providing a respective set of sampled signal values (x(t)) for each of a plurality of sequential time segments; analyzing the sampled signal values (x(t)) to determine one or more sinusoidal components for each of the plurality of sequential segments, each sinusoidal component including a frequency value (Ω) and a phase value (Ψ); linking sinusoidal components across a plurality of sequential segments to provide sinusoidal tracks; determining, for each sinusoidal track in each of the plurality of sequential segments, a predicted phase value ({tilde over (ψ)}(k)) as a function of phase value for at least a previous segment; determining, for each sinusoidal track, a measured phase value (Ψ) comprising a generally monotonically changing value; selecting, for each track, a number of sinusoids in the track; quantizing, for each track, sinusoidal codes (C generating an encoded signal (AS) including sinusoidal codes (C