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    Bass boost filtering techniques
    11.
    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

    申请人： Serge Smirnov ,  Qunli Li ,  James D. Johnston ,  John Bregar

    发明人： Serge Smirnov ,  Qunli Li ,  James D. Johnston ,  John Bregar

    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。

    ENCODING STREAMING MEDIA AS A HIGH BIT RATE LAYER, A LOW BIT RATE LAYER, AND ONE OR MORE INTERMEDIATE BIT RATE LAYERS
    12.
    发明申请
    ENCODING STREAMING MEDIA AS A HIGH BIT RATE LAYER, A LOW BIT RATE LAYER, AND ONE OR MORE INTERMEDIATE BIT RATE LAYERS 有权
    编码流媒体作为高比特率层，低比特率层，以及一个或多个中间比特速率层

    公开(公告)号：US20090279605A1

    公开(公告)日：2009-11-12

    申请号：US12116878

    申请日：2008-05-07

    申请人： Thomas W. Holcomb ,  Sanjeev Mehrotra ,  Serge Smirnov ,  Bharath Siravara

    发明人： Thomas W. Holcomb ,  Sanjeev Mehrotra ,  Serge Smirnov ,  Bharath Siravara

    IPC分类号： H04N7/26

    CPC分类号： H04N19/34 ,  H04N19/114 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/164 ,  H04N19/166 ,  H04N19/179 ,  H04N19/187

    摘要： A method of encoding an input video stream comprising a video component and an audio component is disclosed. The input video stream is split into a plurality of segments, each comprising a plurality of frames. Each of the segments is encoded as a low bit rate layer, a high bit rate layer, and one or more intermediate bit rate layers. The bit rate of the low bit rate layer is selected such that a network streaming the segment will always be able to stream the segment encoded as the low bit rate layer. The bit rate of the high bit rate layer is selected such that the segment is able to be decoded and played back at or above a quality threshold. The bit rates of the intermediate bit rate layers are produced by applying a bit rate factor to another bit rate.

    摘要翻译： 公开了一种编码包括视频分量和音频分量的输入视频流的方法。 输入视频流被分割成多个段，每个段包括多个帧。 每个段被编码为低比特率层，高比特率层和一个或多个中间比特率层。 选择低比特率层的比特率，使得流分段的网络将总是能够将编码为低比特率层的段流传输。 选择高比特率层的比特率使得该片段能够在质量阈值以上或高于质量阈值时被解码和回放。 中间比特率层的比特率通过将比特率因子应用于另一个比特率来产生。

    Client-side audio signal mixing on low computational power player using beat metadata
    14.
    发明授权
    Client-side audio signal mixing on low computational power player using beat metadata 有权
    使用节拍元数据在低计算能力播放器上的客户端音频信号混合

    公开(公告)号：US08426715B2

    公开(公告)日：2013-04-23

    申请号：US11958331

    申请日：2007-12-17

    申请人： John Bregar ,  Andy Precious ,  Sanjeev Mehrotra ,  Serge Smirnov

    发明人： John Bregar ,  Andy Precious ,  Sanjeev Mehrotra ,  Serge Smirnov

    IPC分类号： G10H1/40

    CPC分类号： G11B20/10527 ,  G11B27/10 ,  G11B2020/10546

    摘要： A low computational power digital audio player achieves beat continuous transitioning between digital audio pieces based on beat metadata, which can be generated via offline processing on a higher computational power computer or via background or idle processing on the digital audio player. The digital audio player produces playlists of beat matching compatible songs based on the metadata, or pick lists of songs that are beat matching compatible with a currently playing song. By facilitating selection of songs with beat matching compatible tempos based on metadata, the beat continuous transitions can be achieved without altering the beat tempo of digital audio pieces, or with simple resampling.

    摘要翻译： 低计算能力数字音频播放器可以基于节拍元数据实现数字音频片段之间的节拍连续转换，其可以通过在较高计算能力计算机上的离线处理或经由数字音频播放器上的背景或空闲处理来生成。 数字音频播放器产生基于元数据的匹配兼容歌曲的播放列表，或者选择与当前播放的歌曲兼容的节拍匹配的歌曲列表。 通过促进基于元数据的匹配匹配兼容节奏的歌曲的选择，可以在不改变数字音频片段的节拍速度的情况下或者通过简单的重采样来实现节拍连续转变。

    PERCEPTUALLY WEIGHTED DIGITAL AUDIO LEVEL COMPRESSION
    15.
    发明申请
    PERCEPTUALLY WEIGHTED DIGITAL AUDIO LEVEL COMPRESSION 有权
    特别加权的数字音频电平压缩

    公开(公告)号：US20090116664A1

    公开(公告)日：2009-05-07

    申请号：US11935972

    申请日：2007-11-06

    申请人： Serge Smirnov ,  James D. Johnston ,  Chris Messer

    发明人： Serge Smirnov ,  James D. Johnston ,  Chris Messer

    IPC分类号： H03G7/00

    CPC分类号： H03G7/007 ,  H04R3/00

    摘要： The level of an audio signal can be compressed by receiving an input audio signal, determining a measure of loudness of the signal using a perceptually derived filter, determining a target gain amount, determining a current gain amount using piecewise linear attack/release logic, and producing an output audio signal by adjusting the input audio signal by the current gain amount. An audio compression filter for compressing the level of audio can comprise a loudness measuring module configured to determine a measure of loudness using a perceptually derived filter, and a compression module configured to determine a target gain amount, determine a current gain amount using piecewise linear attack/release logic, and adjust an input audio signal by the current gain amount. Audio level compression can be implemented using integer calculations.

    摘要翻译： 可以通过接收输入音频信号来压缩音频信号的电平，使用感知导出的滤波器确定信号的响度度量，确定目标增益量，使用分段线性攻击/释放逻辑确定当前增益量，以及 通过将输入音频信号调整为当前增益量来产生输出音频信号。 用于压缩音频电平的音频压缩滤波器可以包括响度测量模块，其被配置为使用感知导出滤波器来确定响度的度量;以及压缩模块，被配置为确定目标增益量，使用分段线性攻击确定当前增益量 /释放逻辑，并且通过当前增益量调整输入音频信号。 可以使用整数计算来实现音频电平压缩。

    Data format for a streaming information appliance
    17.
    发明申请
    Data format for a streaming information appliance 有权
    流媒体信息设备的数据格式

    公开(公告)号：US20050246456A1

    公开(公告)日：2005-11-03

    申请号：US11098017

    申请日：2005-04-01

    申请人： William Parry ,  Serge Smirnov ,  Mingtzong Lee ,  Christopher Lorton ,  Jayachandran Raja

    发明人： William Parry ,  Serge Smirnov ,  Mingtzong Lee ,  Christopher Lorton ,  Jayachandran Raja

    IPC分类号： G06F3/00 ,  G06F12/00 ,  G06F12/08 ,  G11B20/10 ,  H04N21/44

    CPC分类号： H04N21/44004 ,  G11B20/10 ,  G11B27/034 ,  G11B27/105 ,  G11B27/322 ,  G11B2020/10666

    摘要： A method is provided for handling streaming information encoded with a data structure having a data block format. The data block format includes a data block having a header portion and an end portion. The header portion includes a prefix field having a pointer to a succeeding data block and the end portion includes a suffix field having a pointer to a preceding data block. A first data block size field is included in the header portion and indicates the size of the data block and a second data block size field is included in the end portion and indicates the size of the data block. A payload field is bounded by the first data block size field and a second data block size field. The payload field includes streaming information to be rendered.

    摘要翻译： 提供了一种用于处理用具有数据块格式的数据结构编码的流信息的方法。 数据块格式包括具有报头部分和端部的数据块。 标题部分包括具有指向后续数据块的指针的前缀字段，并且结束部分包括具有指向前一数据块的指针的后缀字段。 第一数据块大小字段包括在标题部分中，并且指示数据块的大小，并且第二数据块大小字段包括在结束部分中并且指示数据块的大小。 有效载荷字段由第一数据块大小字段和第二数据块大小字段限制。 有效载荷字段包括要呈现的流信息。

    System for storing streaming information in a circular buffer by using padding block containing non-streaming information to fill a partition of the buffer
    19.
    发明申请
    System for storing streaming information in a circular buffer by using padding block containing non-streaming information to fill a partition of the buffer 有权
    用于通过使用包含非流信息的填充块来填充缓冲区的分区来将流信息存储在循环缓冲器中的系统

    公开(公告)号：US20050235113A1

    公开(公告)日：2005-10-20

    申请号：US11096791

    申请日：2005-04-01

    申请人： Serge Smirnov ,  Mingtzong Lee ,  Christopher Lorton ,  Jayachandran Raja

    发明人： Serge Smirnov ,  Mingtzong Lee ,  Christopher Lorton ,  Jayachandran Raja

    IPC分类号： G06F3/00 ,  G06F12/00 ,  G06F12/08 ,  G11B20/10 ,  H04N21/44

    CPC分类号： H04N21/44004 ,  G11B20/10 ,  G11B27/034 ,  G11B27/105 ,  G11B27/322 ,  G11B2020/10666

    摘要： One aspect of the present invention relates to an information appliance for handling streaming information for storage in a circular buffer having a plurality of partitions defined by boundaries. The information appliance includes receiving streaming information from a source of streaming information and forming data blocks wherein each data block includes a payload field capable of holding a portion of the streaming information and an identification field indicative of the source of the streaming information. At least one data block is written to the circular buffer to partially fill a partition and at least one padding block is generated having a field indicative of non-streaming information and having a size being a function of remaining space in the partition. The padding block is written to the circular buffer adjacent a boundary of the partition.

    摘要翻译： 本发明的一个方面涉及一种用于处理用于存储在具有由边界定义的多个分区的循环缓冲器中的流信息的信息设备。 信息设备包括从流信息源接收流信息并形成数据块，其中每个数据块包括能够保存流信息的一部分的有效负载字段和指示流信息源的标识字段。 将至少一个数据块写入循环缓冲器以部分地填充分区，并且生成至少一个填充块，其具有指示非流信息的字段，并且具有作为分区中剩余空间的函数的大小。 填充块被写入与分区边界相邻的循环缓冲区。