Audio-visual scrubbing system
    2.
    发明授权
    Audio-visual scrubbing system 有权
    视听洗涤系统

    公开(公告)号:US06687664B1

    公开(公告)日:2004-02-03

    申请号:US09419128

    申请日:1999-10-15

    IPC分类号: G10L1900

    CPC分类号: G10L21/04

    摘要: A method and apparatus for an audio scrubbing system for synchronizing audio to an asynchronous clock while preserving pitch utilizes a phase-vocoder to implement time-scaling without pitch-shifting.

    摘要翻译: 用于将音频同步到异步时钟同时保持音调的音频擦除系统的方法和装置利用相位声码器实现无间距移位的时间缩放。

    Phase-vocoder pitch-shifting
    3.
    发明授权
    Phase-vocoder pitch-shifting 有权
    相位声码器音调转换

    公开(公告)号:US06549884B1

    公开(公告)日:2003-04-15

    申请号:US09399920

    申请日:1999-09-21

    IPC分类号: G10L1914

    CPC分类号: G10L19/26 G10L21/003

    摘要: A system for pitch-shifting an audio signal wherein resampling is done in the frequency domain. The system includes a method for pitch-shifting a signal by converting the signal to a frequency domain representation and then identifying a specific region in the frequency domain representation. The region being located at a first frequency location. Next, the region is shifted to a second frequency location to form a adjusted frequency domain representation. Finally, the adjusted frequency domain representation is transformed to a time domain signal representing the input signal with shifted pitch. This eliminates the expensive time domain resampling stage and allows the computational costs to become independent of the pitch modification factor.

    摘要翻译: 一种用于对音频信号进行音调移位的系统,其中在频域中进行重采样。 该系统包括通过将信号转换为频域表示然后识别频域表示中的特定区域来对信号进行音调移位的方法。 该区域位于第一频率位置。 接下来,将区域移动到第二频率位置以形成调整的频域表示。 最后,将经调整的频域表示变换为表示具有偏移音调的输入信号的时域信号。 这消除了昂贵的时域重采样级,并且允许计算成本独立于音调修正因子。

    Process for removing voice from stereo recordings
    4.
    发明授权
    Process for removing voice from stereo recordings 有权
    从立体声录音中删除语音的过程

    公开(公告)号:US08767969B1

    公开(公告)日:2014-07-01

    申请号:US10415770

    申请日:2000-09-27

    IPC分类号: H04R5/00 H04S3/02

    摘要: A system (200) for processing a sound signal (212) that allows dynamic customization of perceived spatial positions and sound qualities of sound components associated with the sound signal (212). The system provides apparatus for processing a sound signal (212) that includes an input to receive the sound signal (212), a sound unmixer (204) coupled to the input to receive the sound signal (212) and unmix at least one sound stream (216) from the sound signal (212) based on at least one unmixing instruction (214), and an output coupled to the sound unmixer (214) to output the at least one sound stream (216).

    摘要翻译: 一种用于处理声音信号(212)的系统(200),所述声音信号允许对所述声音信号(212)相关联的声音分量的感知空间位置和声音质量的动态定制。 该系统提供用于处理声音信号(212)的装置,该声音信号包括用于接收声音信号的输入端(212),耦合到该输入端以接收声音信号的声音混合器(204),并且混合至少一个声音流 (214),基于至少一个解混合指令(214)从所述声音信号(212)输出信号(216),以及耦合到所述声音混合器(214)以输出所述至少一个声音流(216)的输出。

    Spatial audio analysis and synthesis for binaural reproduction and format conversion
    6.
    发明授权
    Spatial audio analysis and synthesis for binaural reproduction and format conversion 有权
    双耳再现和格式转换的空间音频分析和综合

    公开(公告)号:US08374365B2

    公开(公告)日:2013-02-12

    申请号:US12243963

    申请日:2008-10-01

    IPC分类号: H04R5/02

    摘要: A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into audio output signal cues for two or more channels in the frequency domain.

    摘要翻译: 描述用于格式转换或再现诸如记录的2声道或多声道音频信号的频域方法。 再现是基于输入音频信号中的方向提示的空间分析,并且将这些提示转换成频域中两个或更多个频道的音频输出信号提示。

    SPATIAL AUDIO ANALYSIS AND SYNTHESIS FOR BINAURAL REPRODUCTION AND FORMAT CONVERSION
    7.
    发明申请
    SPATIAL AUDIO ANALYSIS AND SYNTHESIS FOR BINAURAL REPRODUCTION AND FORMAT CONVERSION 有权
    空间音频分析和合成生物复制和格式转换

    公开(公告)号:US20090252356A1

    公开(公告)日:2009-10-08

    申请号:US12243963

    申请日:2008-10-01

    IPC分类号: H04R5/02

    摘要: A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into audio output signal cues for two or more channels in the frequency domain.

    摘要翻译: 描述用于格式转换或再现诸如记录的2声道或多声道音频信号的频域方法。 再现是基于输入音频信号中的方向提示的空间分析,并且将这些提示转换成频域中两个或更多个频道的音频输出信号提示。

    Method and apparatus for spatial reformatting of multi-channel audio content
    8.
    发明授权
    Method and apparatus for spatial reformatting of multi-channel audio content 有权
    多声道音频内容空间格式化的方法和装置

    公开(公告)号:US07555354B2

    公开(公告)日:2009-06-30

    申请号:US11584125

    申请日:2006-10-20

    IPC分类号: G06F17/00 H04B1/00 H04B1/20

    摘要: A method and device are described to process an event on an audio rendering device. The method may comprise rendering a first audio stream via at least a first audio signal in a first audio playback channel and a second audio signal in a second audio playback channel and monitoring occurrence of the event with an associated second audio stream. Upon occurrence of the event, the first audio signal may be panned to the second audio playback channel, the first audio signal being mixed with the second audio signal in the second audio playback channel. The second audio stream is then rendered via the first audio playback channel.

    摘要翻译: 描述了一种处理音频呈现设备上的事件的方法和设备。 该方法可以包括通过第一音频回放通道中的至少第一音频信号和第二音频回放通道中的第二音频信号渲染第一音频流,并且监视具有关联的第二音频流的事件的发生。 在发生事件时,可以将第一音频信号调到第二音频回放通道,第一音频信号与第二音频回放通道中的第二音频信号混合。 第二音频流然后通过第一音频回放通道呈现。

    Method and apparatus for spatial reformatting of multi-channel audio conetent
    9.
    发明申请
    Method and apparatus for spatial reformatting of multi-channel audio conetent 有权
    多声道音频整合的空间格式化方法与装置

    公开(公告)号:US20080103615A1

    公开(公告)日:2008-05-01

    申请号:US11584125

    申请日:2006-10-20

    IPC分类号: G06F17/00

    摘要: A method and device are described to process an event on an audio rendering device. The method may comprise rendering a first audio stream via at least a first audio signal in a first audio playback channel and a second audio signal in a second audio playback channel and monitoring occurrence of the event with an associated second audio stream. Upon occurrence of the event, the first audio signal may be panned to the second audio playback channel, the first audio signal being mixed with the second audio signal in the second audio playback channel. The second audio stream is then rendered via the first audio playback channel.

    摘要翻译: 描述了一种处理音频呈现设备上的事件的方法和设备。 该方法可以包括通过第一音频回放通道中的至少第一音频信号和第二音频回放通道中的第二音频信号渲染第一音频流,并且监视具有关联的第二音频流的事件的发生。 在发生事件时,可以将第一音频信号调到第二音频回放通道,第一音频信号与第二音频回放通道中的第二音频信号混合。 第二音频流然后通过第一音频回放通道呈现。

    AUTOMATED VISUALIZATION FOR ENHANCED MUSIC PLAYBACK
    10.
    发明申请
    AUTOMATED VISUALIZATION FOR ENHANCED MUSIC PLAYBACK 审中-公开
    自动化可视化加强音乐播放

    公开(公告)号:US20070219937A1

    公开(公告)日:2007-09-20

    申请号:US11619011

    申请日:2007-01-02

    IPC分类号: G06F17/30

    摘要: A method and device for providing visualizations on a media player is described. The method may comprise monitoring playback of an audio stream on the media player selecting visualization data stored on the media player. The visualization data may be previously rendered and including at least one element derived from an audio stream. Thereafter, the selected visualization data is displayed and the audio stream is rendered on the media player. For example, the selected visualization data may be automatically without human intervention rendered in synchrony with the audio stream. The media player may be a portable media player and the visualization data may comprise dynamic element(s) and static element(s). The method may update the dynamic element(s) based on an update algorithm.

    摘要翻译: 描述了用于在媒体播放器上提供可视化的方法和设备。 该方法可以包括监视媒体播放器上的音频流的重放,该媒体播放器选择存储在媒体播放器上的可视化数据。 可以预先呈现可视化数据,并且包括从音频流导出的至少一个元素。 此后,显示所选择的可视化数据,并且在媒体播放器上呈现音频流。 例如,所选择的可视化数据可以是自动的,而不需要与音频流同步地进行人为干预。 媒体播放器可以是便携式媒体播放器,并且可视化数据可以包括动态元素和静态元素。 该方法可以基于更新算法来更新动态元素。