METHOD FOR GENERATING A TWO-CHANNEL SIGNAL FROM A SINGLE-CHANNEL SIGNAL OF A SOUND SOURCE

摘要

The present invention relates to a method for generating a two-channel signal from a single-channel signal of a sound source. The object of the invention is to provide a method for transformation of a monophonic single-channel signal into a two-channel signal so that a reproduction of the signal with a virtual spatial character including a virtual principal radiation direction can be achieved. The object of the invention is achieved with a method for generating a two-channel signal from a single-channel signal of a sound source for simulating the position and the directional radiation characteristic of a reproduced sound source and for simulating the principal radiation direction of an emitted signal. The method is characterized in that the single-channel signal is split into two first channels and two second channels, wherein splitting into the two first channels is conducted using stereophonic techniques so that a virtual position of the reproduced sound source is achieved, and wherein splitting into the two second channels is conducted by delaying the single-channel signal in both second channels with a time delay τ to generate a virtual directional radiation characteristic of the reproduced sound source, i.e. to generate a directivity, and wherein the signal of one of the second channels is processed with a different gain compared to the gain in the other second channel to generate direction information.