Invention Grant
US08731915B2 Method and apparatus to remove noise from an input signal in a noisy environment, and method and apparatus to enhance an audio signal in a noisy environment
有权
在噪声环境中从输入信号中去除噪声的方法和装置，以及在嘈杂环境下增强音频信号的方法和装置
- Patent Title: Method and apparatus to remove noise from an input signal in a noisy environment, and method and apparatus to enhance an audio signal in a noisy environment
- Patent Title (中): 在噪声环境中从输入信号中去除噪声的方法和装置，以及在嘈杂环境下增强音频信号的方法和装置
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Application No.: US12942069Application Date: 2010-11-09
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Publication No.: US08731915B2Publication Date: 2014-05-20
- Inventor: Sang-wook Shin
- Applicant: Sang-wook Shin
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim, LLP
- Priority: KR10-2009-0114059 20091124
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L21/02
Abstract:
A method of removing noise includes detecting a frequency spectrum of a noise signal around the transmitting terminal, when an input signal which is a mixture of a voice signal and the noise signal is received, detecting a frequency spectrum of the input signal and an energy level of the voice signal, multiplying the frequency spectrum of the noise signal by a weight value that is determined based on the energy level of the voice signal to obtain a weighted noise frequency spectrum, and subtracting the weighted noise frequency spectrum from the frequency spectrum of the input signal.
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