Encoder, decoder, system, method for decoding, method for encoding, data stream and computer program using a code word for the position of a transform coefficient

Abstract

A decoder for decoding a one-dimensional digital waveform signal from a data stream by use of block-wise transform decoding, the decoder configured to decode a sequence of transform coefficients of a predetermined block of the one-dimensional digital waveform signal from the data stream by deriving a position information from the data stream, locating, using the position information, a position in the sequence of transform coefficients; and decoding one or more first transform coefficients of the sequence of transform coefficients from the data stream, which precede the position in the sequence of transform coefficients, and attributing a predetermined value to one or more second transform coefficients of the sequence of transform coefficients, which follow the position in the sequence of transform coefficients. Further disclosed is an encoder, a system, methods, a data stream and a computer program.