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    • 5. 发明授权
    • Apparatus and method for generating a synthesis audio signal using a patching control signal
    • 使用补丁控制信号产生合成音频信号的装置和方法
    • US08386268B2
    • 2013-02-26
    • US13107687
    • 2011-05-13
    • Frederik NagelMarkus MultrusJeremie LecomteStefan BayerGuillaume FuchsJohannes HilpertJulien Robilliard
    • Frederik NagelMarkus MultrusJeremie LecomteStefan BayerGuillaume FuchsJohannes HilpertJulien Robilliard
    • G10L19/00
    • G10L19/24G10L21/038
    • An apparatus for generating a synthesis audio signal using a patching control signal has a first converter, a spectral domain patch generator, a high frequency reconstruction manipulator and a combiner. The first converter is configured for converting a time portion of an audio signal into a spectral representation. The spectral domain patch generator is configured for performing a plurality of different spectral domain patching algorithms, wherein each patching algorithm generates a modified spectral representation having spectral components in an upper frequency band derived from corresponding spectral components in a core frequency band of the audio signal. The spectral domain patch generator is furthermore configured to select a first spectral domain patching algorithm from the plurality of patching algorithms for a first time portion and a second spectral domain patching algorithm from the plurality of patching algorithm for a second different time portion in accordance with the patching control signal to obtain the modified spectral representation.
    • 使用补丁控制信号产生合成音频信号的装置具有第一转换器,频域补丁发生器,高频重建操纵器和组合器。 第一转换器被配置为将音频信号的时间部分转换为频谱表示。 频域补丁生成器被配置用于执行多个不同的频域修补算法,其中每个修补算法生成具有从音频信号的核心频带中的相应频谱分量导出的上频带中的频谱分量的修改频谱表示。 频域补丁生成器还被配置为根据来自第一时间部分的多个修补算法和来自用于第二不同时间部分的多个修补算法的第二频域修补算法来选择第一频域修补算法 修补控制信号以获得修改的光谱表示。