Invention Grant
- Patent Title: Dynamic range compressor
- Patent Title (中): 动态范围压缩机
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Application No.: US14409939Application Date: 2013-06-18
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Publication No.: US09258031B2Publication Date: 2016-02-09
- Inventor: Jens Groh
- Applicant: INSTITUT FUR RUNDFUNKTECHNIK GMBH
- Applicant Address: DE Munich
- Assignee: Institut fur Rundfunktechnik GMBH
- Current Assignee: Institut fur Rundfunktechnik GMBH
- Current Assignee Address: DE Munich
- Agency: Workman Nydegger
- Priority: ITTO2012A0530 20120619
- International Application: PCT/EP2013/062641 WO 20130618
- International Announcement: WO2013/189938 WO 20131227
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H04B1/66 ; H03G7/00 ; H03H17/02 ; H04B1/00 ; H04B1/18 ; H03G9/02

Abstract:
A dynamic range compressor of a subband type for carrying out a dynamic compression on a broadband input signal includes a subband splitting device for splitting the broadband input signal into K narrowband subband signals. An amplifier unit amplifies each of the K subband signals to obtain K amplified subband signals. Further, a subband combining device is provided for combining the K amplified subband signals to obtain a broadband output signal, which is a dynamically compressed version of the broadband input signal. An envelope detecting device generates, for each of the K subbands, a respective one of K envelope signals. An amplifier control device generates, in dependence of the K envelope signals, K amplifier control signals, each being representative of one of the K amplification factors. The amplifier control device is adapted to generate an amplification control signal in dependence of more than one of the K envelope signals.
Public/Granted literature
- US20150188602A1 DYNAMIC RANGE COMPRESSOR Public/Granted day:2015-07-02
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