Patent ID: 7725310

Claim:
A method of encoding an audio 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; linking sinusoidal components across a plurality of sequential segments to provide sinusoidal tracks, each track comprising a number of frames; and generating an encoded signal (AS) including sinusoidal codes (C s ) comprising a representation level (r) for zero or more frames and where some of these codes (C s ) comprise a phase (φ), a frequency (ω) and a quantization table (Q) for a given frame when the given frame is designated as a random-access frame, wherein each quantization table (Q) is represented by an index (IND) and where the index (IND) is transmitted from an encoder to a decoder at a random-access frame instead of transmitting the quantization table (Q).