Invention Grant
US08731209B2 Device and method for generating a multi-channel signal including speech signal processing
有权
用于产生包括语音信号处理的多声道信号的装置和方法
- Patent Title: Device and method for generating a multi-channel signal including speech signal processing
- Patent Title (中): 用于产生包括语音信号处理的多声道信号的装置和方法
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Application No.: US12681809Application Date: 2008-10-01
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Publication No.: US08731209B2Publication Date: 2014-05-20
- Inventor: Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
- Applicant: Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Keating & Bennett, LLP
- Priority: DE102007048973 20071012
- International Application: PCT/EP2008/008324 WO 20081001
- International Announcement: WO2009/049773 WO 20090423
- Main IPC: H04B3/00
- IPC: H04B3/00

Abstract:
In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
Public/Granted literature
- US20100232619A1 DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL INCLUDING SPEECH SIGNAL PROCESSING Public/Granted day:2010-09-16
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