Invention Grant
US08346565B2 Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal and computer program
有权
用于从音频信号生成环境信号的装置和方法，用于从音频信号和计算机程序导出多声道音频信号的装置和方法
- Patent Title: Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal and computer program
- Patent Title (中): 用于从音频信号生成环境信号的装置和方法，用于从音频信号和计算机程序导出多声道音频信号的装置和方法
-
Application No.: US12440058Application Date: 2007-10-23
-
Publication No.: US08346565B2Publication Date: 2013-01-01
- Inventor: Christian Uhle , Juergen Herre , Andreas Walther , Oliver Hellmuth , Christiaan Janssen
- Applicant: Christian Uhle , Juergen Herre , Andreas Walther , Oliver Hellmuth , Christiaan Janssen
- 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: DE102006050068 20061024
- International Application: PCT/EP2007/009197 WO 20071023
- International Announcement: WO2008/049587 WO 20080502
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L11/00 ; H04R5/00 ; H03G3/00
Abstract:
An apparatus for generating an ambient signal from an audio signal includes a compressor for lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal describing a compressed audio signal. The apparatus for generating the ambient signal further includes a calculator for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation. The apparatus further includes a provider for providing the ambient signal using the discrimination representation. An apparatus for deriving a multi-channel audio signal from an audio signal includes an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal.
Public/Granted literature
Information query
