Abstract: In a method for eliminating voice signals from a stereo input signal stream a monophonic and a stereophonic signal stream is derived by adding (3) and subtracting, (4) respectively, the left and right signal content of the stereo input signal stream, where after the monophonic signal stream is filtered by means of a band stop filter device (5), and a stereo output signal stream is obtained by adding (6) the stereophonic signal stream and the filtered monophonic signal stream, and subtracting (7) the stereophonic signal stream and the filtered monophonic signal stream, respectively. The method may be applied for voice suppression in karaoke applications.

Abstract: The invention relates to a method for at least two audio signals (A1, A2) each being impressed with a process function, particularly a transformation function. According to the invention, upper values (8) of a function-impressed audio signal (A3) are decreased after the function by a rate and subsequently all values (8, 9) of the partially decreased signal (A4) are increased.