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发明申请
US20090144062A1 Method and Apparatus to Facilitate Provision and Use of an Energy Value to Determine a Spectral Envelope Shape for Out-of-Signal Bandwidth Content 有权
提供和使用能量值以确定信号外带宽内容的光谱包络形状的方法和装置

  • 专利标题： Method and Apparatus to Facilitate Provision and Use of an Energy Value to Determine a Spectral Envelope Shape for Out-of-Signal Bandwidth Content
  • 专利标题（中）： 提供和使用能量值以确定信号外带宽内容的光谱包络形状的方法和装置
  • 申请号： US11946978
    申请日： 2007-11-29
  • 公开(公告)号： US20090144062A1
    公开(公告)日： 2009-06-04
  • 发明人: Tenkasi V. Ramabadran , Mark A. Jasiuk
  • 申请人： Tenkasi V. Ramabadran , Mark A. Jasiuk
  • 申请人地址： US IL Schaumburg
  • 专利权人： MOTOROLA, INC.
  • 当前专利权人： MOTOROLA, INC.
  • 当前专利权人地址： US IL Schaumburg
  • 主分类号： G06F19/00
  • IPC分类号： G06F19/00
Method and Apparatus to Facilitate Provision and Use of an Energy Value to Determine a Spectral Envelope Shape for Out-of-Signal Bandwidth Content
摘要：
One provides (101) a digital audio signal having a corresponding signal bandwidth, and then provides (102) an energy value that corresponds to at least an estimate of out-of-signal bandwidth energy as corresponds to that digital audio signal. One then uses (103) the energy value to simultaneously determine both a spectral envelope shape and a corresponding suitable energy for the spectral envelope shape for out-of-signal bandwidth content as corresponds to the digital audio signal. By one approach, if desired, one then combines (104) (on, for example, a frame by frame basis) the digital audio signal with the out-of-signal bandwidth content to provide a bandwidth extended version of the digital audio signal to be audibly rendered to thereby improve corresponding audio quality of the digital audio signal as so rendered.
摘要（中）：

一个提供（101）具有相应信号带宽的数字音频信号，然后提供对应于该数字音频信号的至少对信号外带宽能量的估计的能量值（102）。 然后，对应于数字音频信号，然后使用（103）能量值同时确定频谱包络形状和对于用于超出信号带宽内容的频谱包络形状的相应合适的能量。 通过一种方法，如果需要，然后将数字音频信号与输出信号带宽内容（104）（例如，逐帧地组合）（104）以提供数字音频信号的带宽扩展版本， 可听见地渲染，从而提高如此呈现的数字音频信号的相应音频质量。

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