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    Sharing wavelet domain components among encoded signals
    1.
    发明授权
    Sharing wavelet domain components among encoded signals 有权
    在编码信号之间共享小波域分量

    公开(公告)号：US07890335B2

    公开(公告)日：2011-02-15

    申请号：US10269894

    申请日：2002-10-10

    Applicant: Daniel L. Zelazo ,  Steven D. Trautmann

    Inventor： Daniel L. Zelazo ,  Steven D. Trautmann

    IPC: G10L19/00

    CPC classification number: G06F17/148 ,  G10L19/0216

    Abstract: A system for sharing wavelet domain components among encoded signals receives a set of signals decomposed and encoded according to a wavelet transform. The decomposed and encoded signals each include a set of wavelet coefficients at each level of the decomposition of the encoded signal. Using a vector quantization technique, the system identifies one or more sets of wavelet coefficients that are sharable among two or more of the decomposed and encoded signals at a particular level of decomposition. The system then stores the sets of wavelet coefficients of the decomposed and encoded signals. Each identified sharable set of wavelet coefficients at a particular level of decomposition is stored only once and shared by two or more of the decomposed and encoded signals.

    Abstract translation: 用于在编码信号中共享小波域分量的系统接收根据小波变换分解和编码的一组信号。 分解和编码的信号各自包括在编码信号的分解的每个级别处的一组小波系数。 使用矢量量化技术，系统识别在特定分解级别的两个或多个分解和编码信号之间可共享的一组或多组小波系数。 然后，系统存储分解和编码信号的小波系数集合。 在特定分解级别的每个识别的可共享小波系数集合仅被存储一次并由两个或更多个分解和编码信号共享。

    Band-selectable stereo synthesizer using strictly complementary filter pair
    2.
    发明授权
    Band-selectable stereo synthesizer using strictly complementary filter pair 有权
    频段可选的立体声合成器使用严格互补的滤波器对

    公开(公告)号：US07885414B2

    公开(公告)日：2011-02-08

    申请号：US11560397

    申请日：2006-11-16

    Applicant: Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    Inventor： Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    IPC: H04R5/00

    CPC classification number: H04S5/00

    Abstract: A new method is proposed that produces stereophonic sound image out of monaural signal within a selected frequency regions. The system employs a strictly complementary (SC) linear phase FIR filter pair that separates input signal into different frequency regions. A pair of comb filters is applied to one of the filter's output. This implementation allows a certain frequency range to be relatively localized at center while the other sounds are perceived in a wider space.

    Abstract translation: 提出了一种新的方法，其在选定的频率区域内的单声道信号产生立体声声像。 该系统采用将输入信号分离成不同频率区域的严格互补（SC）线性相位FIR滤波器对。 一对梳状滤波器应用于滤波器的输出之一。 该实现允许将某一频率范围相对地定位在中心，而在更宽的空间中感知到其他声音。

    Stereo synthesizer using comb filters and intra-aural differences
    5.
    发明申请
    Stereo synthesizer using comb filters and intra-aural differences 有权
    立体声合成器使用梳状滤波器和耳内差异

    公开(公告)号：US20080118072A1

    公开(公告)日：2008-05-22

    申请号：US11560390

    申请日：2006-11-16

    Applicant: Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    Inventor： Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    IPC: H04R5/00

    CPC classification number: H04S5/00 ,  H04S2420/07

    Abstract: A method for creating a stereophonic sound image out of a monaural signal combines two sub-methods. Comb filters decorrelate the left and right channel signals. Intra-aural difference cues, such as an Intra-Aural Time Difference (ITD) and an Intra-aural Intensity Difference (IID) separated channels. Strict complementary (SC) linear phase FIR filters divide the incoming monaural signal into three frequency band separation. The comb filters and ITD/IID applied to the low and high frequency bands create a simulated stereo sound image for the instruments other than human voice. Listening tests indicate that this invention provides a wider stereo sound image than previous methods, while retaining human voice centralization. Since the comb filter solution and ITD/IID solution can share the same filter bank, the computational cost of this method is almost the same as the previous method.

    Abstract translation: 用于从单声道信号创建立体声声像的方法组合了两种子方法。 梳状滤波器解除左右声道信号的相关性。 声内差异提示，例如内耳时间差（Intra-Aural Time Difference，ITD）和视听间强度差异（IID）分离的频道。 严格互补（SC）线性相位FIR滤波器将输入的单声道信号分为三个频带分离。 梳状滤波器和应用于低频和高频带的ITD / IID为除人声外的乐器创建了模拟立体声图像。 听力测试表明，本发明提供了比以前的方法更宽的立体声图像，同时保持人声集中。 由于梳状滤波器解决方案和ITD / IID解决方案可以共享相同的滤波器组，因此该方法的计算成本与以前的方法几乎相同。

    Stereo synthesizer using comb filters and intra-aural differences
    6.
    发明授权
    Stereo synthesizer using comb filters and intra-aural differences 有权
    立体声合成器使用梳状滤波器和耳内差异

    公开(公告)号：US08019086B2

    公开(公告)日：2011-09-13

    申请号：US11560390

    申请日：2006-11-16

    Applicant: Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    Inventor： Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

    IPC: H04R5/00

    CPC classification number: H04S5/00 ,  H04S2420/07

    Abstract: A method for creating a stereophonic sound image out of a monaural signal combines two sub-methods. Comb filters decorrelate the left and right channel signals. Intra-aural difference cues, such as an Intra-Aural Time Difference (ITD) and an Intra-aural Intensity Difference (IID) separated channels. Strict complementary (SC) linear phase FIR filters divide the incoming monaural signal into three frequency band separation. The comb filters and ITD/IID applied to the low and high frequency bands create a simulated stereo sound image for the instruments other than human voice. Listening tests indicate that this invention provides a wider stereo sound image than previous methods, while retaining human voice centralization. Since the comb filter solution and ITD/IID solution can share the same filter bank, the computational cost of this method is almost the same as the previous method.

    Abstract translation: 用于从单声道信号创建立体声声像的方法组合了两种子方法。 梳状滤波器解除左右声道信号的相关性。 声内差异提示，例如内耳时间差（Intra-Aural Time Difference，ITD）和视听间强度差异（IID）分离频道。 严格互补（SC）线性相位FIR滤波器将输入的单声道信号分为三个频带分离。 梳状滤波器和应用于低频和高频带的ITD / IID为除人声外的乐器创建了模拟立体声图像。 听力测试表明，本发明提供了比以前的方法更宽的立体声图像，同时保持人声集中。 由于梳状滤波器解决方案和ITD / IID解决方案可以共享相同的滤波器组，因此该方法的计算成本与以前的方法几乎相同。

    Low computation mono to stereo conversion using intra-aural differences
    9.
    发明授权
    Low computation mono to stereo conversion using intra-aural differences 有权
    使用耳内差异的低计算单声道到立体声转换

    公开(公告)号：US07920708B2

    公开(公告)日：2011-04-05

    申请号：US11560387

    申请日：2006-11-16

    Applicant: Steven D. Trautmann ,  Ryo Tsutsui

    Inventor： Steven D. Trautmann ,  Ryo Tsutsui

    IPC: H04R5/00

    CPC classification number: H04S5/00 ,  H04S1/002 ,  H04S2420/03

    Abstract: A method of converting single channel audio (mono) signals to two channel audio (stereo) signals using simple filters and an Intra-aural Time Difference (ITD) is presented. This method does not distort the spectral content of the original signal very much, and has low computation requirements. A variation is proposed which also uses Intra-aural Intensity Difference (IID).

    Abstract translation: 提出了使用简单滤波器和心内时间差（ITD）将单声道音频（单声道）信号转换为双声道音频（立体声）信号的方法。 该方法不会使原始信号的频谱含量变形不大，计算量低。 提出了一种也使用心内强度差异（IID）的变异。

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