专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130041658A1 SYSTEM AND METHOD OF PROCESSING A SOUND SIGNAL INCLUDING TRANSFORMING THE SOUND SIGNAL INTO A FREQUENCY-CHIRP DOMAIN 有权
标题翻译：处理声音信号的系统和方法，包括将声音信号转换成频率域
公开(公告)号：US20130041658A1
公开(公告)日：2013-02-14
申请号：US13205535
申请日：2011-08-08
申请人： David C. BRADLEY , Daniel S. GOLDIN , Robert N. HILTON , Nicholas K. FISHER , Rodney GATEAU , Derrick R. ROOS , Eric WIEWIORA
发明人： David C. BRADLEY , Daniel S. GOLDIN , Robert N. HILTON , Nicholas K. FISHER , Rodney GATEAU , Derrick R. ROOS , Eric WIEWIORA
IPC分类号： G10L11/06
CPC分类号： H04R29/00 , G10L15/02 , G10L17/02 , G10L21/0208 , G10L21/0232 , G10L25/03 , G10L25/15 , G10L25/27 , G10L25/51 , G10L25/90 , G10L25/93 , G10L2025/906
摘要： A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio signal, may reconstruct sound represented in the audio signal, and/or may segment or classify the audio signal. A transform may be performed on the audio signal to place the audio signal in a frequency chirp domain that enhances the sound parameter tracking, reconstruction, and/or classification.
摘要翻译：系统和方法可以被配置为处理音频信号。系统和方法可以跟踪音频信号上的间距，啁啾率和/或谐波包络，可以重构在音频信号中表示的声音，和/或可以对音频信号进行分段或分类。可以对音频信号执行变换以将音频信号放置在增强声音参数跟踪，重建和/或分类的频率线性调频区域中。

2. 发明申请

US20120243705A1 Systems And Methods For Reconstructing An Audio Signal From Transformed Audio Information 有权
标题翻译：用于从转换的音频信息重建音频信号的系统和方法
公开(公告)号：US20120243705A1
公开(公告)日：2012-09-27
申请号：US13205492
申请日：2011-08-08
申请人： David C. BRADLEY , Daniel S. GOLDIN , Robert N. HILTON , Nicholas K. FISHER , Rodney GATEAU
发明人： David C. BRADLEY , Daniel S. GOLDIN , Robert N. HILTON , Nicholas K. FISHER , Rodney GATEAU
IPC分类号： H04B15/00 , H03G5/00
CPC分类号： G10L19/00 , G10L13/00 , G10L21/00 , G10L21/0208 , G10L21/0232 , G10L25/45 , G10L25/90 , G10L25/93 , H03G5/005 , H03G5/165 , H04R29/00
摘要： A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics.
摘要翻译：系统和方法可以被配置为从经变换的音频信息重建音频信号。音频信号可以基于从变换的音频信息确定的各个谐波和相应的音调重新合成。可以通过经过变换的音频信息插值跨越峰值点和谐波音调路径的谷点，并从与峰值点插值相关联的值中减去与波谷点内插相关联的值，从变换的音频信息中减去噪声。可以通过在变换的音频信息中的各个谐波上的对中功能来抑制变换的音频信息中的声音之间的噪声，该功能用于抑制谐波之间的噪声。

3. 发明申请

US20130041657A1 SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL USING HARMONIC ENVELOPE 有权
标题翻译：使用谐波包络的音频信号跟踪声音的系统和方法
公开(公告)号：US20130041657A1
公开(公告)日：2013-02-14
申请号：US13205521
申请日：2011-08-08
申请人： David C. BRADLEY , Rodney Gateau , Daniel S. Goldin , Robert N. Hilton , Nicholas K. Fisher
发明人： David C. BRADLEY , Rodney Gateau , Daniel S. Goldin , Robert N. Hilton , Nicholas K. Fisher
IPC分类号： G10L11/04
CPC分类号： H04R29/00 , G10L25/90 , G10L2025/906
摘要： A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and a representation of harmonic envelope at the estimated pitch. The estimated pitch and the representation of harmonic envelope may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision.
摘要翻译：系统和方法可以被配置为分析从音频信号导出的音频信息。系统和方法可以跟踪音频信号上的声音间距。通过在各个时间段确定信号持续时间中的采样窗口，估计音调和估计音高处的谐波包络的表示，可以通过音频信号跟踪音调来考虑音高的变化。然后可以实现估计音调和谐波包络的表示，以确定具有增强的精度和/或精度的信号持续时间中的另一时间采样窗口的估计音高。

4. 发明申请

US20130041656A1 SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL 有权
标题翻译：用于跟踪音频信号处理声音的系统和方法
公开(公告)号：US20130041656A1
公开(公告)日：2013-02-14
申请号：US13205483
申请日：2011-08-08
申请人： David C. BRADLEY , Daniel S. GOLDIN , Rodney GATEAU , Nicholas K. FISHER , Robert N. HILTON , Derrick R. ROOS , Eric WIEWIORA
发明人： David C. BRADLEY , Daniel S. GOLDIN , Rodney GATEAU , Nicholas K. FISHER , Robert N. HILTON , Derrick R. ROOS , Eric WIEWIORA
IPC分类号： G10L11/04
CPC分类号： G10L25/90 , G10L25/03 , G10L25/93 , G10L2025/906
摘要： A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and an estimated fractional chirp rate of the harmonics at the estimated pitch. The estimated pitch and the estimated fractional chirp rate may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision.
摘要翻译：系统和方法可以被配置为分析从音频信号导出的音频信息。系统和方法可以跟踪音频信号上的声音间距。通过在各个时间段确定信号持续时间中的估计音调和估计音调处的谐波的估计分数啁啾率，可以考虑在音频信号上的音调的跟踪可以考虑音高的变化。然后可以实现估计的音调和估计的分数啁啾率，以确定具有增强的精度和/或精度的信号持续时间中的另一时间采样窗口的估计音高。

5. 发明申请

US20120243694A1 SYSTEMS AND METHODS FOR SEGMENTING AND/OR CLASSIFYING AN AUDIO SIGNAL FROM TRANSFORMED AUDIO INFORMATION 有权
标题翻译：用于从改变的音频信息分类和/或分类音频信号的系统和方法
公开(公告)号：US20120243694A1
公开(公告)日：2012-09-27
申请号：US13205507
申请日：2011-08-08
申请人： David C. BRADLEY , Robert N. Hilton , Daniel S. Goldin , Nicholas K. Fisher , Derrick R. Roos , Eric Wiewiora
发明人： David C. BRADLEY , Robert N. Hilton , Daniel S. Goldin , Nicholas K. Fisher , Derrick R. Roos , Eric Wiewiora
IPC分类号： H04R29/00
CPC分类号： G10L17/02 , G10L25/51 , G10L25/84 , H04R3/00 , H04R29/00 , H04R2430/03
摘要： A system and method may be provided to segment and/or classify an audio signal from transformed audio information. Transformed audio information representing a sound may be obtained. The transformed audio information may specify magnitude of a coefficient related to energy amplitude as a function of frequency for the audio signal and time. Features associated with the audio signal may be obtained from the transformed audio information. Individual ones of the features may be associated with a feature score relative to a predetermined speaker model. An aggregate score may be obtained based on the feature scores according to a weighting scheme. The weighting scheme may be associated with a noise and/or SNR estimation. The aggregate score may be used for segmentation to identify portions of the audio signal containing speech of one or more different speakers. For classification, the aggregate score may be used to determine a likely speaker model to identify a source of the sound in the audio signal.
摘要翻译：可以提供一种系统和方法来从经变换的音频信息中分割和/或分类音频信号。可以获得表示声音的变换音频信息。变换的音频信息可以指定与能量幅度相关的系数的幅度作为音频信号和时间的频率的函数。可以从变换的音频信息获得与音频信号相关联的特征。各个特征可以与相对于预定扬声器模型的特征得分相关联。可以根据加权方案基于特征得分获得总分。加权方案可以与噪声和/或SNR估计相关联。聚合分数可以用于分割以识别包含一个或多个不同说话者的语音的音频信号的部分。对于分类，总分可用于确定可能的扬声器模型以识别音频信号中的声音源。

6. 发明申请

US20130041489A1 System And Method For Analyzing Audio Information To Determine Pitch And/Or Fractional Chirp Rate 审中-公开
标题翻译：用于分析音频信息以确定音高和/或分数啁啾率的系统和方法
公开(公告)号：US20130041489A1
公开(公告)日：2013-02-14
申请号：US13205455
申请日：2011-08-08
申请人： David C. BRADLEY , Nicholas K. FISHER , Robert N. HILTON , Rodney GATEAU , Derrick R. ROOS
发明人： David C. BRADLEY , Nicholas K. FISHER , Robert N. HILTON , Rodney GATEAU , Derrick R. ROOS
IPC分类号： G06F17/00
CPC分类号： G10L25/90
摘要： A system and method may be configured to analyze audio information. The system and method may include determining for an audio signal, an estimated pitch of a sound represented in the audio signal, an estimated chirp rate (or fractional chirp rate) of a sound represented in the audio signal, and/or other parameters of sound(s) represented in the audio signal. The one or more parameters may be determined through analysis of transformed audio information derived from the audio signal (e.g., through Fourier Transform, Fast Fourier Transform, Short Time Fourier Transform, Spectral Motion Transform, and/or other transforms). Statistical analysis may be implemented to determine metrics related to the likelihood that a sound represented in the audio signal has a pitch and/or chirp rate (or fractional chirp rate). Such metrics may be implemented to determine an estimated pitch and/or fractional chirp rate.
摘要翻译：系统和方法可以被配置为分析音频信息。系统和方法可以包括确定音频信号，音频信号中表示的声音的估计音调，在音频信号中表示的声音的估计啁啾率（或分数啁啾率）和/或其它声音参数（s）表示在音频信号中。可以通过分析从音频信号导出的变换的音频信息（例如，通过傅里叶变换，快速傅里叶变换，短时傅里叶变换，频谱运动变换和/或其他变换）来确定一个或多个参数。可以实现统计分析以确定与音频信号中表示的声音具有音调和/或啁啾率（或分数啁啾率）的可能性相关的度量。可以实现这样的度量以确定估计的音调和/或分数啁啾率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式