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1. 发明授权

US08165875B2 System for suppressing wind noise 有权
标题翻译：抑制风噪的系统
公开(公告)号：US08165875B2
公开(公告)日：2012-04-24
申请号：US12902503
申请日：2010-10-12
申请人： Phillip A. Hetherington , Xueman Li , Pierre Zakarauskas
发明人： Phillip A. Hetherington , Xueman Li , Pierre Zakarauskas
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L21/0232
摘要： A voice enhancement logic improves the perceptual quality of a processed voice. The voice enhancement system includes a noise detector and a noise attenuator. The noise detector detects a wind buffet and a continuous noise by modeling the wind buffet. The noise attenuator dampens the wind buffet to improve the intelligibility of an unvoiced, a fully voiced, or a mixed voice segment.
摘要翻译：语音增强逻辑提高了处理语音的感知质量。语音增强系统包括噪声检测器和噪声衰减器。噪音检测器通过对风自助餐进行建模来检测风自助餐和持续的噪音。噪音衰减器抑制风自助餐，以提高无声，完全浊音或混合声音段的清晰度。

2. 发明申请

US20120095759A1 SYSTEM FOR IMPROVING SPEECH INTELLIGIBILITY THROUGH HIGH FREQUENCY COMPRESSION 有权
标题翻译：通过高频压缩提高语音智能的系统
公开(公告)号：US20120095759A1
公开(公告)日：2012-04-19
申请号：US13336149
申请日：2011-12-23
申请人： Phillip A. Hetherington , Xueman Li
发明人： Phillip A. Hetherington , Xueman Li
IPC分类号： G10L19/14 , G10L21/02
CPC分类号： G10L21/02 , G10L21/0232 , G10L21/0264 , G10L21/0364
摘要： A speech enhancement system that improves the intelligibility and the perceived quality of processed speech includes a frequency transformer and a spectral compressor. The frequency transformer converts speech signals from the time domain to the frequency domain. The spectral compressor compresses a pre-selected portion of the high frequency band and maps the compressed high frequency band to a lower band limited frequency range.
摘要翻译：提高处理语音的可懂度和感知质量的语音增强系统包括频率变换器和频谱压缩器。变频器将语音信号从时域转换为频域。频谱压缩器压缩高频带的预选部分，并将压缩的高频带映射到较低频带限制的频率范围。

3. 发明申请

US20090287481A1 SPEECH ENHANCEMENT SYSTEM 有权
标题翻译：语音增强系统
公开(公告)号：US20090287481A1
公开(公告)日：2009-11-19
申请号：US12471072
申请日：2009-05-22
申请人： Shreyas Paranjpe , Phillip A. Hetherington , Xueman Li
发明人： Shreyas Paranjpe , Phillip A. Hetherington , Xueman Li
IPC分类号： G10L21/02
CPC分类号： G10L21/02 , G10L21/0208 , H04B1/66 , H04B3/04 , H04M3/002
摘要： A speech enhancement system improves speech conversion within an encoder and decoder. The system includes a first device that converts sound waves into operational signals. A second device selects a template that represents an expected signal model. The selected template models speech characteristics of the operational signals through a speech codebook that is further accessed in a communication channel.
摘要翻译：语音增强系统改进编码器和解码器内的语音转换。该系统包括将声波转换成操作信号的第一装置。第二个设备选择一个表示预期信号模型的模板。所选择的模板通过在通信信道中进一步访问的语音码本来模拟操作信号的语音特征。

4. 发明申请

US20110026734A1 System for Suppressing Wind Noise 有权
标题翻译：抑制风噪声系统
公开(公告)号：US20110026734A1
公开(公告)日：2011-02-03
申请号：US12902503
申请日：2010-10-12
申请人： Phillip A. Hetherington , Xueman Li , Pierre Zakarauskas
发明人： Phillip A. Hetherington , Xueman Li , Pierre Zakarauskas
IPC分类号： H04B15/00 , G10L21/02
CPC分类号： G10L21/0208 , G10L21/0232
摘要： A voice enhancement logic improves the perceptual quality of a processed voice. The voice enhancement system includes a noise detector and a noise attenuator. The noise detector detects a wind buffet and a continuous noise by modeling the wind buffet. The noise attenuator dampens the wind buffet to improve the intelligibility of an unvoiced, a fully voiced, or a mixed voice segment.
摘要翻译：语音增强逻辑提高了处理语音的感知质量。语音增强系统包括噪声检测器和噪声衰减器。噪音检测器通过对风自助餐进行建模来检测风自助餐和持续的噪音。噪音衰减器抑制风自助餐，以提高清音，完全浊音或混合声音段的清晰度。

5. 发明申请

US20090112584A1 DYNAMIC NOISE REDUCTION 有权
标题翻译：减少动态噪音
公开(公告)号：US20090112584A1
公开(公告)日：2009-04-30
申请号：US11923358
申请日：2007-10-24
申请人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
发明人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
IPC分类号： G10L15/20
CPC分类号： G10L21/0208
摘要： A speech enhancement system improves the speech quality and intelligibility of a speech signal. The system includes a time-to-frequency converter that converts segments of a speech signal into frequency bands. A signal detector measures the signal power of the frequency bands of each speech segment. A background noise estimator measures a background noise detected in the speech signal. A dynamic noise reduction controller dynamically models the background noise in the speech signal. The speech enhancement renders a speech signal perceptually pleasing to a listener by dynamically attenuating a portion of the noise that occurs in a portion of the spectrum of the speech signal.
摘要翻译：语音增强系统提高语音信号的语音质量和可懂度。该系统包括将语音信号的段转换成频带的时间 - 频率转换器。信号检测器测量每个语音段的频带的信号功率。背景噪声估计器测量在语音信号中检测到的背景噪声。动态降噪控制器动态建模语音信号中的背景噪声。语音增强通过动态地衰减出现在语音信号的频谱的一部分中的噪声的一部分，从而使聆听者感觉到愉悦的语音信号。

6. 发明授权

US08326616B2 Dynamic noise reduction using linear model fitting 有权
标题翻译：使用线性模型拟合的动态降噪
公开(公告)号：US08326616B2
公开(公告)日：2012-12-04
申请号：US13217817
申请日：2011-08-25
申请人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
发明人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
IPC分类号： G10L21/02 , G10L15/20
CPC分类号： G10L21/0208
摘要： A speech enhancement system improves the speech quality and intelligibility of a speech signal. The system includes a time-to-frequency converter that converts segments of a speech signal into frequency bands. A signal detector measures the signal power of the frequency bands of each speech segment. A background noise estimator measures a background noise detected in the speech signal. A dynamic noise reduction controller dynamically models the background noise in the speech signal. The speech enhancement renders a speech signal perceptually pleasing to a listener by dynamically attenuating a portion of the noise that occurs in a portion of the spectrum of the speech signal.
摘要翻译：语音增强系统提高语音信号的语音质量和可懂度。该系统包括将语音信号的段转换成频带的时间 - 频率转换器。信号检测器测量每个语音段的频带的信号功率。背景噪声估计器测量在语音信号中检测到的背景噪声。动态降噪控制器动态建模语音信号中的背景噪声。语音增强通过动态地衰减出现在语音信号的频谱的一部分中的噪声的一部分，从而使聆听者感觉到愉悦的语音信号。

7. 发明授权

US08326614B2 Speech enhancement system 有权
标题翻译：语音增强系统
公开(公告)号：US08326614B2
公开(公告)日：2012-12-04
申请号：US12471072
申请日：2009-05-22
申请人： Shreyas Paranjpe , Phillip A. Hetherington , Xueman Li
发明人： Shreyas Paranjpe , Phillip A. Hetherington , Xueman Li
IPC分类号： G10L19/04
CPC分类号： G10L21/02 , G10L21/0208 , H04B1/66 , H04B3/04 , H04M3/002
摘要： A speech enhancement system improves speech conversion within an encoder and decoder. The system includes a first device that converts sound waves into operational signals. A second device selects a template that represents an expected signal model. The selected template models speech characteristics of the operational signals through a speech codebook that is further accessed in a communication channel.
摘要翻译：语音增强系统改进编码器和解码器内的语音转换。该系统包括将声波转换成操作信号的第一装置。第二个设备选择一个表示预期信号模型的模板。所选择的模板通过在通信信道中进一步访问的语音码本来模拟操作信号的语音特征。

8. 发明申请

US20120035921A1 Dynamic Noise Reduction 有权
标题翻译：动态降噪
公开(公告)号：US20120035921A1
公开(公告)日：2012-02-09
申请号：US13217817
申请日：2011-08-25
申请人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
发明人： Xueman Li , Rajeev Nongpiur , Phillip A. Hetherington
IPC分类号： G10L21/02
CPC分类号： G10L21/0208
摘要： A speech enhancement system improves the speech quality and intelligibility of a speech signal. The system includes a time-to-frequency converter that converts segments of a speech signal into frequency bands. A signal detector measures the signal power of the frequency bands of each speech segment. A background noise estimator measures a background noise detected in the speech signal. A dynamic noise reduction controller dynamically models the background noise in the speech signal. The speech enhancement renders a speech signal perceptually pleasing to a listener by dynamically attenuating a portion of the noise that occurs in a portion of the spectrum of the speech signal.
摘要翻译：语音增强系统提高语音信号的语音质量和可懂度。该系统包括将语音信号的段转换成频带的时间 - 频率转换器。信号检测器测量每个语音段的频带的信号功率。背景噪声估计器测量在语音信号中检测到的背景噪声。动态降噪控制器动态建模语音信号中的背景噪声。语音增强通过动态地衰减出现在语音信号的频谱的一部分中的噪声的一部分，从而使聆听者感觉到愉悦的语音信号。

9. 发明申请

US20090222268A1 SPEECH SYNTHESIS SYSTEM HAVING ARTIFICIAL EXCITATION SIGNAL 审中-公开
标题翻译：具有人为激发信号的语音合成系统
公开(公告)号：US20090222268A1
公开(公告)日：2009-09-03
申请号：US12041302
申请日：2008-03-03
申请人： Xueman Li , Phillip A. Hetherington , Shahla Parveen , Tommy TSZ Chun Chiu
发明人： Xueman Li , Phillip A. Hetherington , Shahla Parveen , Tommy TSZ Chun Chiu
IPC分类号： G10L13/02
CPC分类号： G10L13/04
摘要： A speech synthesis system synthesizes a speech signal corresponding to an input speech signal based on a spectral envelope of the input speech signal. A glottal pulse generator generates a time series of glottal pulses, that are processed into a glottal pulse magnitude spectrum. A shaping circuit shapes the glottal pulse magnitude spectrum based on the spectral envelope and generates a shaped glottal pulse magnitude spectrum. A harmonic null adjustment circuit reduces harmonic nulls in the shaped glottal pulse magnitude spectrum and generates a null-adjusted synthesized speech spectrum. An inverse transform circuit generates a null-adjusted time-series speech signal. An overlap and add circuit synthesizes the speech signal based on the null-adjusted time-series speech signal.
摘要翻译：语音合成系统基于输入语音信号的频谱包络来合成对应于输入语音信号的语音信号。声门脉冲发生器产生声门脉冲的时间序列，其被处理成声门脉冲幅度谱。整形电路基于频谱包络形成声门脉冲幅度谱，并产生形状的声门脉冲幅度谱。谐波零调整电路减少了形状声门脉冲幅度谱中的谐波零点，并产生了零调整的合成语音频谱。逆变换电路产生零调整的时间序列语音信号。重叠和加法电路基于零调整的时间序列语音信号来合成语音信号。

10. 发明授权

US08326617B2 Speech enhancement with minimum gating 有权
标题翻译：语音增强与最小门控
公开(公告)号：US08326617B2
公开(公告)日：2012-12-04
申请号：US12454841
申请日：2009-05-22
申请人： Phillip A. Hetherington , Shreyas Paranjpe , Xueman Li
发明人： Phillip A. Hetherington , Shreyas Paranjpe , Xueman Li
IPC分类号： G10L21/02 , G10L21/00
CPC分类号： G10L21/0208 , G10L19/012 , G10L19/26
摘要： A speech enhancement system enhances transitions between speech and non-speech segments. The system includes a background noise estimator that approximates the magnitude of a background noise of an input signal that includes a speech and a non-speech segment. A slave processor is programmed to perform the specialized task of modifying a spectral tilt of the input signal to match a plurality of expected spectral shapes selected by a Codec.
摘要翻译：语音增强系统增强语音和非语音段之间的转换。该系统包括背景噪声估计器，其近似包括语音和非语音段的输入信号的背景噪声的幅度。从属处理器被编程为执行修改输入信号的频谱倾斜以匹配由编解码器选择的多个预期频谱形状的专门任务。

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