Equalization of the output in a stereo widening network

Details Equalization of the output in a stereo widening network Equalization of the output in a stereo widening network

2003-11-21

2008-10-21

Chin, Vivian (Department: 2615)

Electrical audio signal processing systems and devices

Binaural and stereophonic

C381S017000, C381S018000

Reexamination Certificate

active

07440575

ABSTRACT:
The invention relates to a method, signal processing device and computer program for stereo widening (SW) of stereo format signals to become suitable for headphone listening. The invention also relates to a mobile appliance performing signal processing according to the invention. According to the invention a separate monophonic signal path (ME) is formed in order to equalize the frequency spectrum of the monophonic component of the left and right output signals (Lout,Rout) by at least extracting from the left and right input signals (Lin,Rin) an at least substantially monophonic signal component contained in said signals (Lin,Rin), processing the extracted monophonic signal component to obtain a processed monophonic signal component, and combining said processed monophonic signal component with at least one of the left (Lout) or the right (Rout) output signals.

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