Sound processing apparatus, method, and program
    1.
    发明授权
    Sound processing apparatus, method, and program 有权
    声音处理装置,方法和程序

    公开(公告)号:US09294062B2

    公开(公告)日:2016-03-22

    申请号:US14239797

    申请日:2012-09-03

    摘要: The present technique relates to a sound processing apparatus, a method, and a program capable of alleviating degradation of the quality of sound in a case where the gain of a sound signal is amplified.When equalizer processing for adjusting the gain of each frequency band of an input signal on the basis of a gain setting value is performed, an input signal is attenuated by an input attenuation amount derived from the gain setting value, and the equalizer processing is performed on the input signal attenuated. The amount of amplification of the gain of the input signal in the equalizer processing is estimated on the basis of the gain setting value and a weight coefficient of each frequency band derived from a generally-available music signal prepared in advance, and a difference of the estimation value and the input attenuation amount is calculated as a gain correction amount. Further, nonlinear amplification processing is performed on the input signal so as to actually amplify the input signal, which has been subjected to the equalizer processing, by a gain correction amount, and an output signal is obtained. The present technique can be applied to a sound processing apparatus.

    摘要翻译: 本技术涉及在扩大声音信号的增益的情况下能够减轻声音质量劣化的声音处理装置,方法和程序。 当执行用于根据增益设定值调整输入信号的每个频带的增益的均衡器处理时,输入信号被从增益设定值导出的输入衰减量衰减,并且进行均衡器处理 输入信号衰减。 基于从预先准备的通常可用的音乐信号导出的每个频带的增益设定值和权重系数来估计均衡器处理中的输入信号的增益的放大量,以及 估计值和输入衰减量被计算为增益校正量。 此外,对输入信号进行非线性放大处理,以便实际上将经过均衡器处理的输入信号放大增益校正量,并获得输出信号。 本技术可以应用于声音处理装置。

    Coding apparatus and method, decoding apparatus and method, and program storage medium
    4.
    发明授权
    Coding apparatus and method, decoding apparatus and method, and program storage medium 有权
    编码装置和方法,解码装置和方法以及程序存储介质

    公开(公告)号:US07162316B2

    公开(公告)日:2007-01-09

    申请号:US11081632

    申请日:2005-03-17

    IPC分类号: G06F17/00

    摘要: In order to obtain coded data which does not strike viewers and listeners as being incongruous, when plural audio data are to be coded, a coding program groups the respective audio data into one audio data, codes the grouped audio data in sequence with a predetermined number of samples being treated as units, and sets delimitations corresponding to the delimitations of the plural audio data in the coded data at coding units of the coded data.

    摘要翻译: 为了获得不使观众和听众不合理的编码数据,当要对多个音频数据进行编码时,编码程序将各个音频数据分组成一个音频数据,按照预定的数量对分组的音频数据进行编码 被处理为单位,并且以编码数据的编码单位设置与编码数据中的多个音频数据的分界对应的定界。

    Signal processing apparatus and method, and program
    7.
    发明授权
    Signal processing apparatus and method, and program 有权
    信号处理装置及方法及程序

    公开(公告)号:US09406306B2

    公开(公告)日:2016-08-02

    申请号:US13498234

    申请日:2011-07-27

    IPC分类号: G10L19/02 G10L21/038

    摘要: A method, system, and computer program product for processing an encoded audio signal is described. In one exemplary embodiment, the system receives an encoded low-frequency range signal and encoded energy information used to frequency shift the encoded low-frequency range signal. The low-frequency range signal is decoded and an energy depression of the decoded signal is smoothed. The smoothed low-frequency range signal is frequency shifted to generate a high-frequency range signal. The low-frequency range signal and high-frequency range signal are then combined and outputted.

    摘要翻译: 描述了用于处理编码音频信号的方法,系统和计算机程序产品。 在一个示例性实施例中,系统接收编码的低频范围信号和用于对编码的低频范围信号进行频移的编码能量信息。 低频范围信号被解码,解码信号的能量下降被平滑化。 平滑的低频范围信号被频移以产生高频范围信号。 然后组合并输出低频范围信号和高频范围信号。

    ENCODING DEVICE, ENCODING METHOD, AND PROGRAM
    9.
    发明申请
    ENCODING DEVICE, ENCODING METHOD, AND PROGRAM 有权
    编码设备,编码方法和程序

    公开(公告)号:US20140172433A2

    公开(公告)日:2014-06-19

    申请号:US14006148

    申请日:2012-03-23

    IPC分类号: G10L19/008

    摘要: This technology relates to an encoding device, an encoding method, and a program capable of improving audio quality and more efficiently encoding audio. A first high-frequency encoding circuit encodes a high-frequency range based on a low-frequency subband signal and a high-frequency subband signal and obtains a high-frequency code amount. A low-frequency encoding circuit encodes a low-frequency signal with a code amount determined by the high-frequency code amount and a low-frequency decoding circuit decodes the encoded low-frequency signal. A subband dividing circuit divides a decoded low-frequency signal obtained by decoding into decoded low-frequency subband signals of a plurality of subbands and a second high-frequency encoding circuit generates a high-frequency code string such that a code amount of the high-frequency code string for obtaining a high-frequency component is not larger than the high-frequency code amount based on the decoded low-frequency subband signals and the high-frequency subband signals. The present invention is applicable to the encoding device.

    摘要翻译: 该技术涉及能够改善音频质量并且更有效地编码音频的编码装置,编码方法和程序。 第一高频编码电路基于低频子带信号和高频子带信号对高频范围进行编码,并获得高频码量。 低频编码电路以由高频码量确定的码量对低频信号进行编码,低频解码电路解码编码的低频信号。 子带分割电路将通过解码获得的解码低频信号划分为多个子带的解码低频子带信号,第二高频编码电路生成高频编码串, 基于解码的低频子带信号和高频子带信号,用于获得高频分量的频率码串不大于高频编码量。 本发明可应用于编码装置。