Bass boost filtering techniques
    1.
    发明授权
    Bass boost filtering techniques 有权
    低音增强滤波技术

    公开(公告)号:US08189812B2

    公开(公告)日:2012-05-29

    申请号:US11770616

    申请日:2007-06-28

    IPC分类号: H03G5/00

    CPC分类号: H03G5/005

    摘要: Bass frequencies of audio can be boosted using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, bass frequencies of audio can be boosted using an integer bass boost filter by receiving user-settable parameters, such as “c” and “s” coefficients, and implementing the integer bass boost filter using a coupled form structure implementation and the user-settable parameters. Bass frequencies of audio can also be boosted using an integer bass boost filter that is configured to use any of plural coupled form structure implementations. Bass frequencies of audio can be also be boosted using a linear combination of an input audio signal and output of a high-pass filter.

    摘要翻译: 可以使用各种技术和工具提高音频的低音频率。 所描述的技术和工具可以单独使用或组合使用。 例如,可以通过接收诸如“c”和“s”系数之类的用户可设置参数的整数低音增强滤波器来提升音频的低音频率,并且使用耦合的形式结构实现来实现整数低音增强滤波器,并且用户 可设置参数。 也可以使用被配置为使用多个耦合形式结构实现中的任何一个的整数低音提升滤波器来提高音频的低音频率。 也可以使用输入音频信号和高通滤波器的输出的线性组合来提高音频的低音频率。

    BASS BOOST FILTERING TECHNIQUES
    2.
    发明申请
    BASS BOOST FILTERING TECHNIQUES 有权
    BASS BOOST过滤技术

    公开(公告)号:US20080212797A1

    公开(公告)日:2008-09-04

    申请号:US11770616

    申请日:2007-06-28

    IPC分类号: H03G5/00

    CPC分类号: H03G5/005

    摘要: Bass frequencies of audio can be boosted using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, bass frequencies of audio can be boosted using an integer bass boost filter by receiving user-settable parameters, such as “c” and “s” coefficients, and implementing the integer bass boost filter using a coupled form structure implementation and the user-settable parameters. Bass frequencies of audio can also be boosted using an integer bass boost filter that is configured to use any of plural coupled form structure implementations. Bass frequencies of audio can be also be boosted using a linear combination of an input audio signal and output of a high-pass filter.

    摘要翻译: 可以使用各种技术和工具提高音频的低音频率。 所描述的技术和工具可以单独使用或组合使用。 例如,可以通过接收诸如“c”和“s”系数之类的用户可设置参数的整数低音增强滤波器来提升音频的低音频率,并且使用耦合的形式结构实现来实现整数低音增强滤波器,并且用户 可设置参数。 也可以使用被配置为使用多个耦合形式结构实现中的任何一个的整数低音提升滤波器来提高音频的低音频率。 也可以使用输入音频信号和高通滤波器的输出的线性组合来提高音频的低音频率。

    Multichannel sound rendering via virtualization in a stereo loudspeaker system
    3.
    发明授权
    Multichannel sound rendering via virtualization in a stereo loudspeaker system 有权
    通过立体声扬声器系统中的虚拟化实现多声道声音渲染

    公开(公告)号:US08335331B2

    公开(公告)日:2012-12-18

    申请号:US12016944

    申请日:2008-01-18

    IPC分类号: H03G3/00 H04R5/02

    摘要: A speaker virtualization system provides virtual surround sound using a pair of physical loudspeakers. A multiple surround audio channels input is processed using a combination of head related transfer functions and shaped reverberation to provide widening and front/back auditory clues without requiring any kind of interaural path cancellation. The system uses a 360 degree power-response head related transfer function to provide perceptual separation of the reverberant and direct paths, along with discrete, different reverberation for left and right rendering channels to provide envelopment. By eliminating interaural path cancellation, the speaker virtualization system also produces a wider virtual surround sound effect, without dependency on head position and facing.

    摘要翻译: 扬声器虚拟化系统使用一对物理扬声器提供虚拟环绕声。 使用头部相关传输功能和形状混响的组合来处理多个环绕声道输入,以提供扩大和前/后听觉线索,而不需要任何种类的耳廓间路径消除。 该系统使用360度功率响应头相关传输功能,提供混响和直接路径的感知分离,以及左右渲染通道的离散不同混响,以提供包络。 通过消除耳廓间路径消除,扬声器虚拟化系统还产生更广泛的虚拟环绕声效果,而不依赖于头部位置和面部。

    MULTICHANNEL SOUND RENDERING VIA VIRTUALIZATION IN A STEREO LOUDSPEAKER SYSTEM
    4.
    发明申请
    MULTICHANNEL SOUND RENDERING VIA VIRTUALIZATION IN A STEREO LOUDSPEAKER SYSTEM 有权
    多声道声音渲染通过立体声扬声器系统中的虚拟化

    公开(公告)号:US20090185693A1

    公开(公告)日:2009-07-23

    申请号:US12016944

    申请日:2008-01-18

    IPC分类号: H04R5/00

    摘要: A speaker virtualization system provides virtual surround sound using a pair of physical loudspeakers. A multiple surround audio channels input is processed using a combination of head related transfer functions and shaped reverberation to provide widening and front/back auditory clues without requiring any kind of interaural path cancellation. The system uses a 360 degree power-response head related transfer function to provide perceptual separation of the reverberant and direct paths, along with discrete, different reverberation for left and right rendering channels to provide envelopment. By eliminating interaural path cancellation, the speaker virtualization system also produces a wider virtual surround sound effect, without dependency on head position and facing.

    摘要翻译: 扬声器虚拟化系统使用一对物理扬声器提供虚拟环绕声。 使用头部相关传输功能和形状混响的组合来处理多个环绕声道输入,以提供扩大和前/后听觉线索,而不需要任何种类的耳廓间路径消除。 该系统使用360度功率响应头相关传输功能,提供混响和直接路径的感知分离,以及左右渲染通道的离散不同混响,以提供包络。 通过消除耳廓间路径消除,扬声器虚拟化系统还产生更广泛的虚拟环绕声效果,而不依赖于头部位置和面部。