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1. 发明申请

US20160232924A1 ESTIMATING FRACTIONAL CHIRP RATE WITH MULTIPLE FREQUENCY REPRESENTATIONS 有权
标题翻译：用多个频率表示估计分数
公开(公告)号：US20160232924A1
公开(公告)日：2016-08-11
申请号：US14969036
申请日：2015-12-15
申请人： The Intellisis Corporation
发明人： David C. Bradley , Yao Huang Morin , Janis Intoy , Sean O'Connor , Nick Hilton , Massimo Mascaro
IPC分类号： G10L25/90 , G10L17/26 , G10L25/06 , G10L25/18 , G10L21/0308 , G10L17/02 , G10L15/18
CPC分类号： G10L25/90 , G10L15/02 , G10L17/02 , G10L21/0208 , G10L25/03 , G10L25/06 , G10L25/18 , G10L25/27 , G10L25/51
摘要： An estimate of a fractional chirp rate of a signal may be computed by using multiple frequency representations of the signal. A first frequency representation may be computed using a first fractional chirp rate and a first score may be computed using the first frequency representation that indicates a match between the first fractional chirp rate and a fractional chirp rate of the signal. A second frequency representation may be computed using a second fractional chirp rate and a second score may be computed using the second frequency representation that indicates a match between the second fractional chirp rate and the fractional chirp rate of the signal. The fractional chirp rate of the signal may be estimated using the first score and the second score, for example, by selecting a fractional chirp rate corresponding to a highest score.
摘要翻译：可以通过使用信号的多个频率表示来计算信号的分数啁啾率的估计。可以使用第一分数啁啾率来计算第一频率表示，并且可以使用指示第一分数啁啾率和信号的分数啁啾率之间的匹配的第一频率表示来计算第一分数。可以使用第二分数啁啾率来计算第二频率表示，并且可以使用指示第二分数啁啾率和信号的分数啁啾率之间的匹配的第二频率表示来计算第二分数。可以使用第一分数和第二分数来估计信号的分数啁啾率，例如通过选择对应于最高分数的分数啁啾率。

2. 发明申请

US20160232906A1 DETERMINING FEATURES OF HARMONIC SIGNALS 有权
标题翻译：确定谐波信号的特征
公开(公告)号：US20160232906A1
公开(公告)日：2016-08-11
申请号：US14969029
申请日：2015-12-15
申请人： The Intellisis Corporation
发明人： David C. Bradley , Yao Huang Morin , Massimo Mascaro , Janis I. Intoy , Sean O'Connor , Ellisha Marongelli , Nick Hilton
IPC分类号： G10L19/038 , G10L17/26 , G10L25/45 , G10L17/02
CPC分类号： G10L25/90 , G10L15/02 , G10L17/02 , G10L21/02
摘要： Features that may be computed from a harmonic signal include a fractional chirp rate, a pitch, and amplitudes of the harmonics. A fractional chirp rate may be estimated, for example, by computing scores corresponding to different fractional chirp rates and selecting a highest score. A first pitch may be computed from a frequency representation that is computed using the estimated fractional chirp rate, for example, by using peak-to-peak distances in the frequency distribution. A second pitch may be computed using the first pitch, and a frequency representation of the signal, for example, by using correlations of portions of the frequency representation. Amplitudes of harmonics of the signal may be determined using the estimated fractional chirp rate and second pitch. Any of the estimated fractional chirp rate, second pitch, and harmonic amplitudes may be used for further processing, such as speech recognition, speaker verification, speaker identification, or signal reconstruction.
摘要翻译：可以从谐波信号计算的特征包括分数啁啾率，音调和谐波的振幅。可以例如通过计算对应于不同分数啁啾率的分数并选择最高分数来估计分数啁啾率。可以从使用估计的分数啁啾率计算的频率表示来计算第一音调，例如通过使用频率分布中的峰 - 峰距离。可以使用第一音调和例如通过使用频率表示的部分的相关性来对信号进行频率表示来计算第二音高。可以使用估计的分数啁啾率和第二音调来确定信号的谐波幅度。任何估计的分数啁啾率，第二音调和谐波幅度都可用于进一步处理，例如语音识别，说话人验证，说话者识别或信号重构。

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