Invention Grant
US09208792B2 Systems, methods, apparatus, and computer-readable media for noise injection
有权
用于噪声注入的系统，方法，装置和计算机可读介质
- Patent Title: Systems, methods, apparatus, and computer-readable media for noise injection
- Patent Title (中): 用于噪声注入的系统，方法，装置和计算机可读介质
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Application No.: US13211027Application Date: 2011-08-16
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Publication No.: US09208792B2Publication Date: 2015-12-08
- Inventor: Vivek Rajendran , Ethan Robert Duni , Venkatesh Krishnan
- Applicant: Vivek Rajendran , Ethan Robert Duni , Venkatesh Krishnan
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Austin Rapp & Hardman
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L25/90 ; G10L21/02 ; G10L19/028
Abstract:
A method of processing an audio signal is described. The method includes selecting one among a plurality of entries of a codebook based on information from the audio signal. The method also includes determining locations, in a frequency domain, of zero-valued elements of a first signal that is based on the selected codebook entry. The method further includes calculating energy of the audio signal at the determined frequency-domain locations. The method additionally includes calculating a value of a measure of a distribution of the energy of the audio signal among the determined frequency-domain locations. The method also includes calculating a noise injection gain factor based on the calculated energy and the calculated value.
Public/Granted literature
- US20120046955A1 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR NOISE INJECTION Public/Granted day:2012-02-23
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