Time-scale modification of data-compressed audio information
    8.
    发明授权
    Time-scale modification of data-compressed audio information 有权
    数据压缩音频信息的时间尺度修改

    公开(公告)号:US06842735B1

    公开(公告)日:2005-01-11

    申请号:US09660914

    申请日:2000-09-13

    IPC分类号: G10L21/04

    摘要: A data-compressed audio waveform is temporally modified without requiring complete decompression of the audio signal. Packets of compressed audio data are first unpacked, to remove scaling that was applied in the formation of the packets. The unpacked data is then temporally modified, using one of a number of different approaches. This modification takes place while the audio information remains in a data-compressed format. New packets are then assembled from the modified data, to produce a data-compressed output stream that can be subsequently processed in a conventional manner to reproduce the desired sound. The assembly of the new packets employs a technique for inferring an auditory model from the original packets, to requantize the data in the output packets.

    摘要翻译: 数据压缩音频波形在时间上被修改,而不需要音频信号的完全解压缩。 压缩音频数据的数据包首先被打包,以消除在数据包的形成中应用的缩放。 然后使用多种不同的方法之一来暂时地修改解包的数据。 当音频信息保持数据压缩格式时,进行这种修改。 然后从修改的数据组装新的分组,以产生可以以常规方式随后处理以再现期望的声音的数据压缩输出流。 新分组的组合采用从原始分组推断听觉模型的技术,以重新输出输出分组中的数据。

    Time-scale modification of data-compressed audio information
    9.
    发明授权
    Time-scale modification of data-compressed audio information 有权
    数据压缩音频信息的时间尺度修改

    公开(公告)号:US07792681B2

    公开(公告)日:2010-09-07

    申请号:US11580559

    申请日:2006-10-12

    IPC分类号: G10L21/04

    CPC分类号: G10L21/04 G10L19/173

    摘要: A data-compressed audio waveform is temporally modified without requiring complete decompression of the audio signal. Packets of compressed audio data are first unpacked, to remove scaling that was applied in the formation of the packets. The unpacked data is then temporally modified, using one of a number of different approaches. This modification takes place while the audio information remains in a data-compressed format. New packets are then assembled from the modified data, to produce a data-compressed output stream that can be subsequently processed in a conventional manner to reproduce the desired sound. The assembly of the new packets employs a technique for inferring an auditory model from the original packets, to requantize the data in the output packets.

    摘要翻译: 数据压缩音频波形在时间上被修改,而不需要音频信号的完全解压缩。 压缩音频数据的数据包首先被打包,以消除在数据包的形成中应用的缩放。 然后使用多种不同的方法之一来暂时地修改解包的数据。 当音频信息保持数据压缩格式时,进行这种修改。 然后从修改的数据组装新的分组,以产生可以以常规方式随后处理以再现期望的声音的数据压缩输出流。 新分组的组合采用从原始分组推断听觉模型的技术,以重新输出输出分组中的数据。

    Time-scale modification of data-compressed audio information
    10.
    发明授权
    Time-scale modification of data-compressed audio information 有权
    数据压缩音频信息的时间尺度修改

    公开(公告)号:US07143047B2

    公开(公告)日:2006-11-28

    申请号:US10944456

    申请日:2004-09-17

    IPC分类号: G10L21/04

    摘要: A data-compressed audio waveform is temporally modified without requiring complete decompression of the audio signal. Packets of compressed audio data are first unpacked, to remove scaling that was applied in the formation of the packets. The unpacked data is then temporally modified, using one of a number of different approaches. This modification takes place while the audio information remains in a data-compressed format. New packets are then assembled from the modified data, to produce a data-compressed output stream that can be subsequently processed in a conventional manner to reproduce the desired sound. The assembly of the new packets employs a technique for inferring an auditory model from the original packets, to requantize the data in the output packets.

    摘要翻译: 数据压缩音频波形在时间上被修改,而不需要音频信号的完全解压缩。 压缩音频数据的数据包首先被打包,以消除在数据包的形成中应用的缩放。 然后使用多种不同的方法之一来暂时地修改解包的数据。 当音频信息保持数据压缩格式时,进行这种修改。 然后从修改的数据组装新的分组,以产生可以以常规方式随后处理以再现期望的声音的数据压缩输出流。 新分组的组合采用从原始分组推断听觉模型的技术,以重新输出输出分组中的数据。