Title:
AUDIO REPRODUCING DEVICE
Document Type and Number:
WIPO Patent Application WO2003022003
Kind Code:
A3
Abstract:
An audio reproducing device is provided with an input for receiving an n-channel input signal, an output for supplying an l-channel output signal to l loudspeakers, and an audio processing unit for processing the input signal. The audio processing unit comprises enhancing means for enhancing an m-channel signal part of the n-channel input signal, whereby m = n, the enhancing means having for each channel signal part of said m-channel signal part a non-linear anti-symmetric monotone transfer function. The audio reproducing device is further provided with a speech-music discriminator, which, in response to one of the channel signal parts of said m-channel signal part designated for speech, generates a control signal indicating the probability p that said one of the channel signal parts comprises speech signals. By means of this control signal the enhancing means are controlled.
Inventors:
IRWAN ROY
LARSEN ERIK
LARSEN ERIK
Application Number:
PCT/IB2002/003541
Publication Date:
October 23, 2003
Filing Date:
August 27, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
G10L21/02; H04S1/00; H04S3/00; (IPC1-7): H04S3/00
Foreign References:
EP0462381A2 | 1991-12-27 | |||
EP0517233A1 | 1992-12-09 | |||
EP0637011A1 | 1995-02-01 |
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