Patent ID: 6882731
Filing Date: 2005-04-19
Classification: G10H,H04S

Abstract:
1. A multi-channel audio converter, comprising means for generating an audio signal from initial audio signals (x) and transforming means coupled to the transforming means for transforming said initial audio signals (x) to further audio signals (u), characterized in that transforming means comprise determining means for determining on basis of the initial audio signal (x), a dominant signal (y(k)) and one or more residue signals (q(k)), substantially transverse to each other, analyzing means ( 24 ) for analyzing frequency components of the dominant signal in at least two frequency ranges, forming a difference audio signal (y r {y(k)−y b (k)) corresponding to the dominant signal (y(k)) minus a frequency range component of the dominant signal in one or more selected frequency ranges (y b (k)), and means ( 25 ) for transforming the difference audio signal (y(k)−y b (k)) and the residue signal (q(k)) into said further audio signals (u).