Invention Grant
US08346544B2 Selection of encoding modes and/or encoding rates for speech compression with closed loop re-decision
有权
使用闭环重新决定来选择语音压缩的编码模式和/或编码率
- Patent Title: Selection of encoding modes and/or encoding rates for speech compression with closed loop re-decision
- Patent Title (中): 使用闭环重新决定来选择语音压缩的编码模式和/或编码率
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Application No.: US11625802Application Date: 2007-01-22
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Publication No.: US08346544B2Publication Date: 2013-01-01
- Inventor: Sharath Manjunath , Ananthapadmanabhan Aasanipalai Kandhadai , Eddie L. T. Choy
- Applicant: Sharath Manjunath , Ananthapadmanabhan Aasanipalai Kandhadai , Eddie L. T. Choy
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Todd Marlette; Heejong Yoo
- Main IPC: G10L19/00
- IPC: G10L19/00
Abstract:
In a device configurable to encode speech performing an closed loop re-decision may comprise representing a speech signal by amplitude components and phase components for a current frame and a past frame. In a first closed loop stage, a first set of compressed components and a first set of uncompressed components for a current frame may be generated. A first set of features may be generated by comparing current and past frame amplitude and/or phase components. In a second closed loop stage, a second set of compressed components for the current frame may be generated by compressing the first set of compressed components and compressing the first set of uncompressed components. Generation of a second set of features may be based on the second set of compressed components from the current frame and a combination of amplitude and/or phase components from the past frame.
Public/Granted literature
- US20070244695A1 SELECTION OF ENCODING MODES AND/OR ENCODING RATES FOR SPEECH COMPRESSION WITH CLOSED LOOP RE-DECISION Public/Granted day:2007-10-18
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