Robert Heddle

TL;DR: In this paper, a method for encoding an input signal includes the steps of transforming the 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 other components, encoding the first signal, and encoding a signal based on the second signal.

TL;DR: In this paper, the authors proposed a method consisting of converting the inputted acoustic signals into the frequency component, separating the output of conversion means to the tone component and the other component (noise component).

TL;DR: In this article, an encoding and decoding apparatus and method where there is used a transform processing to allow a waveform element of a corresponding block to interfere with waveform elements of blocks adjoining in both directions at the time of inverse transform processing is presented.

TL;DR: In this paper, an input signal is divided into blocks and converted into spectrum signals, each of the spectrum signals are further divided into units and normalized, and the normalized spectrum signals were transformed into variable-length codes and outputted together with the normalization coefficients and the number of bits of requantization.

TL;DR: In this paper, an approach is employed to carry out blocking of an input signal to transform the blocked signals into spectrum signals to divide the spectrum signals into a plurality of units to normalize them thereafter to implement variable length encoding to output the variable-length encoded signals along with normalization coefficient and the number of requantization bits of each unit.