Arrangement and method for restricting word length

摘要

The invention relates to a method and an arrangement for changing the word length of a digital mode signal in a simple manner. The arrangement comprises means (308) for forming a quantization window to a word, the quantization window being determined to be shorter than the word length, and means (308) for reducing the word length by cutting the bits remaining outside the quantization window from the word. The arrangement further comprises means (312) for determining the amount of saturation caused by the reduction of the word length, and means (316) for adjusting the position of the quantization window in the word to be reduced as a function of saturation. <IMAGE>