SYSTEM AND METHOD FOR NARROW BANDWIDTH DIGITAL SIGNAL PROCESSING
    1.
    发明申请
    SYSTEM AND METHOD FOR NARROW BANDWIDTH DIGITAL SIGNAL PROCESSING 有权
    窄带数字信号处理系统与方法

    公开(公告)号:US20140369521A1

    公开(公告)日:2014-12-18

    申请号:US14032347

    申请日:2013-09-20

    IPC分类号: H03G3/00

    摘要: The present invention provides methods and systems for narrow bandwidth digital processing of an input audio signal. Particularly, the present invention includes a high pass filter configured to filter the input audio signal. A first compressor then modulates the filtered signal in order to create a partially processed signal. In some embodiments, a clipping module further limits the gain of the partially processed signal. A splitter is configured to split the partially processed signal into a first signal and a second signal. A low pass filter is configured to filter the first signal. A pass through module is configured to adjust the gain of the second signal. A mixer then combines the filtered first signal and the gain-adjusted second signal in order to output a combined signal. In some embodiments, a tone control module further processes the combined signal, and a second compressor further modulates the processed signal.

    摘要翻译: 本发明提供了用于输入音频信号的窄带数字处理的方法和系统。 特别地,本发明包括被配置为对输入音频信号进行滤波的高通滤波器。 然后,第一压缩器调制滤波后的信号,以产生部分处理的信号。 在一些实施例中,限幅模块进一步限制部分处理的信号的增益。 分配器被配置为将部分处理的信号分割成第一信号和第二信号。 低通滤波器被配置为对第一信号进行滤波。 通过模块被配置为调整第二信号的增益。 混频器然后组合经滤波的第一信号和经增益调整的第二信号,以输出组合信号。 在一些实施例中,音调控制模块进一步处理组合信号,并且第二压缩器进一步调制处理的信号。

    System and method for stereo field enhancement in two-channel audio systems
    2.
    发明授权
    System and method for stereo field enhancement in two-channel audio systems 有权
    双通道音频系统中立体声场增强的系统和方法

    公开(公告)号:US09398394B2

    公开(公告)日:2016-07-19

    申请号:US13936252

    申请日:2013-07-08

    IPC分类号: H04R5/00 H04S7/00 H04S1/00

    CPC分类号: H04S7/307 H04S1/002

    摘要: The present invention provides methods and systems for digitally processing audio signals in two-channel audio systems and/or applications. In particular, the present invention includes a first filter structured to split a two-channel audio input signal into a low frequency signal and a higher frequency signal. A M/S splitter is then structured to split the higher frequency signal into a middle and a side signal. A detection module is then configured to create a detection signal from the middle signal, which is used in a compression module configured to modulate the side signal to create a gain-modulated side signal. A processing module is then structured to combine the low frequency signal, middle signal, and the gain-modulated side signal to form a final output signal.

    摘要翻译: 本发明提供用于在双声道音频系统和/或应用中数字处理音频信号的方法和系统。 特别地,本发明包括被构造成将双声道音频输入信号分成低频信号和较高频率信号的第一滤波器。 然后将M / S分离器构造成将较高频率信号分成中间和侧面信号。 然后,检测模块被配置为从中间信号创建检测信号,该中间信号被用于被配置为调制侧信号以产生增益调制侧信号的压缩模块。 然后,处理模块被构造成组合低频信号,中间信号和增益调制侧信号以形成最终的输出信号。

    System and method for narrow bandwidth digital signal processing
    3.
    发明授权
    System and method for narrow bandwidth digital signal processing 有权
    窄带数字信号处理系统及方法

    公开(公告)号:US09264004B2

    公开(公告)日:2016-02-16

    申请号:US14032347

    申请日:2013-09-20

    摘要: The present invention provides methods and systems for narrow bandwidth digital processing of an input audio signal. Particularly, the present invention includes a high pass filter configured to filter the input audio signal. A first compressor then modulates the filtered signal in order to create a partially processed signal. In some embodiments, a clipping module further limits the gain of the partially processed signal. A splitter is configured to split the partially processed signal into a first signal and a second signal. A low pass filter is configured to filter the first signal. A pass through module is configured to adjust the gain of the second signal. A mixer then combines the filtered first signal and the gain-adjusted second signal in order to output a combined signal. In some embodiments, a tone control module further processes the combined signal, and a second compressor further modulates the processed signal.

    摘要翻译: 本发明提供了用于输入音频信号的窄带数字处理的方法和系统。 特别地,本发明包括被配置为对输入音频信号进行滤波的高通滤波器。 然后,第一压缩器调制滤波后的信号,以产生部分处理的信号。 在一些实施例中,限幅模块进一步限制部分处理的信号的增益。 分配器被配置为将部分处理的信号分割成第一信号和第二信号。 低通滤波器被配置为对第一信号进行滤波。 通过模块被配置为调整第二信号的增益。 混频器然后组合经滤波的第一信号和经增益调整的第二信号,以输出组合信号。 在一些实施例中,音调控制模块进一步处理组合信号,并且第二压缩器进一步调制处理的信号。

    SYSTEM AND METHOD FOR STEREO FIELD ENHANCEMENT IN TWO CHANNEL AUDIO SYSTEMS

    公开(公告)号:US20200092671A1

    公开(公告)日:2020-03-19

    申请号:US16565863

    申请日:2019-09-10

    IPC分类号: H04S7/00

    摘要: The present invention provides methods and systems for digitally processing audio signals in two-channel audio systems and/or applications. In particular, the present invention includes a first filter structured to split a two-channel audio input signal into a low frequency signal and a higher frequency signal. An M/S splitter is then structured to split the higher frequency signal into a middle and a side signal. A detection module is then configured to create a detection signal from the middle signal, which is used in a compression module configured to modulate the side signal to create a gain-modulated side signal. A processing module is then structured to combine the low frequency signal, middle signal, and the gain-modulated side signal to form a final output signal.

    SYSTEM AND METHOD FOR NARROW BANDWIDTH DIGITAL SIGNAL PROCESSING
    7.
    发明申请
    SYSTEM AND METHOD FOR NARROW BANDWIDTH DIGITAL SIGNAL PROCESSING 有权
    窄带数字信号处理系统与方法

    公开(公告)号:US20160240208A1

    公开(公告)日:2016-08-18

    申请号:US15044768

    申请日:2016-02-16

    摘要: The present invention provides methods and systems for narrow bandwidth digital processing of an input audio signal. Particularly, the present invention includes a high pass filter configured to filter the input audio signal. A first compressor then modulates the filtered signal in order to create a partially processed signal. In some embodiments, a clipping module further limits the gain of the partially processed signal. A splitter is configured to split the partially processed signal into a first signal and a second signal. A low pass filter is configured to filter the first signal. A pass through module is configured to adjust the gain of the second signal. A mixer then combines the filtered first signal and the gain-adjusted second signal in order to output a combined signal. In some embodiments, a tone control module further processes the combined signal, and a second compressor further modulates the processed signal.

    摘要翻译: 本发明提供了用于输入音频信号的窄带数字处理的方法和系统。 特别地,本发明包括被配置为对输入音频信号进行滤波的高通滤波器。 然后,第一压缩器调制滤波后的信号,以产生部分处理的信号。 在一些实施例中,限幅模块进一步限制部分处理的信号的增益。 分配器被配置为将部分处理的信号分割成第一信号和第二信号。 低通滤波器被配置为对第一信号进行滤波。 通过模块被配置为调整第二信号的增益。 混频器然后组合经滤波的第一信号和经增益调整的第二信号,以输出组合信号。 在一些实施例中,音调控制模块进一步处理组合信号,并且第二压缩器进一步调制处理的信号。

    SYSTEM AND METHOD FOR STEREO FIELD ENHANCEMENT IN TWO-CHANNEL AUDIO SYSTEMS
    8.
    发明申请
    SYSTEM AND METHOD FOR STEREO FIELD ENHANCEMENT IN TWO-CHANNEL AUDIO SYSTEMS 有权
    用于双通道音频系统中立体声场增强的系统和方法

    公开(公告)号:US20140369504A1

    公开(公告)日:2014-12-18

    申请号:US13936252

    申请日:2013-07-08

    IPC分类号: H04S7/00

    CPC分类号: H04S7/307 H04S1/002

    摘要: The present invention provides methods and systems for digitally processing audio signals in two-channel audio systems and/or applications. In particular, the present invention includes a first filter structured to split a two-channel audio input signal into a low frequency signal and a higher frequency signal. A M/S splitter is then structured to split the higher frequency signal into a middle and a side signal. A detection module is then configured to create a detection signal from the middle signal, which is used in a compression module configured to modulate the side signal to create a gain-modulated side signal. A processing module is then structured to combine the low frequency signal, middle signal, and the gain-modulated side signal to form a final output signal.

    摘要翻译: 本发明提供用于在双声道音频系统和/或应用中数字处理音频信号的方法和系统。 特别地,本发明包括被构造成将双声道音频输入信号分成低频信号和较高频率信号的第一滤波器。 然后将M / S分离器构造成将较高频率信号分成中间和侧面信号。 然后,检测模块被配置为从中间信号创建检测信号,该中间信号被用于被配置为调制侧信号以产生增益调制侧信号的压缩模块。 然后,处理模块被构造成组合低频信号,中间信号和增益调制侧信号以形成最终的输出信号。

    MECHANICAL FAILURE DETECTION SYSTEM AND METHOD

    公开(公告)号:US20200234558A1

    公开(公告)日:2020-07-23

    申请号:US16719099

    申请日:2019-12-18

    IPC分类号: G08B21/18

    摘要: A mechanical failure detection system for mechanical equipment that has an acoustic capture device disposed in operative proximity to the mechanical equipment in order to acquire an operative state audio signal from the mechanical equipment, and a signal processor structured to processes the operative state audio signal and isolate a constituent signal from the operative state audio signal. The system further includes an operation processor that identifies operating parameters of the mechanical equipment that substantially correspond with the operative state audio signal an which facilitate analysis by a test processor that maintains base line audio signals and corresponding base line operational parameters so that it can compare them to the constituent signal and identify correlations between the constituent signal and the base line audio signal indicative of an operational state of the mechanical equipment such as a failure state.