METHOD, APPARATUS AND RECORDING MEDIUM FOR CODING OF SEPARATED TONE AND NOISE CHARACTERISTICS SPECTRAL COMPONENTS OF AN ACOUSTIC SIGNAL

摘要

A method, and the apparatus for its implementation, for encoding an input signal includes the steps of transforming an input signal into frequency components , as for example by spectrum transform processing, separating the frequency components into a first signal consisting of tone characteristic components and a second signal consisting of other components, encoding the first signal, and encoding a signal based on the second signal.