Arrangement for quantising information signal has quantising step function that forms filtered information values on quantised information values with steeper gradient below threshold value

摘要

The arrangement has a device for frequency-selective filtering of a sequence of information values to obtain a filtered information value sequence and a device for quantising filtered information values to obtain a quantised value sequence with a quantising step function that forms filtered information values on the quantised information values with a steeper gradient below a threshold information value a than above it.