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    • 7. 发明授权
    • Support of a wavetable based sound synthesis in a multiprocessor environment
    • 在多处理器环境中支持基于波音的声音合成
    • US07274967B2
    • 2007-09-25
    • US10684339
    • 2003-10-10
    • Marius TicoJarno SeppanenMatti S. Hamalainen
    • Marius TicoJarno SeppanenMatti S. Hamalainen
    • G06F17/00
    • G10H7/004
    • The invention relates to methods for use in a wavetable based sound synthesis, wherein a first processor stores wavetable data and wherein a second processor generates an output audio signal frame-by-frame based on samples of the wavetable data. One method comprises at the first processor selecting samples of the stored wavetable data, which are expected to be required at the most at the second processor for generating a next output audio frame. The selection is based on a model of a pitch-shift evolution during a single frame and on the number of samples which have been used so far by the second processor. The selected samples are made available to the second processor. Another method allows the second processor to make use of the provided samples. The invention relates equally to corresponding processors, to a corresponding wavetable based sound synthesis system, to a corresponding device and to corresponding software program products.
    • 本发明涉及在基于波音的声音合成中使用的方法,其中第一处理器存储波形数据,并且其中第二处理器基于波形数据的采样逐帧地生成输出音频信号。 一种方法包括在第一处理器处选择预期在第二处理器处最多需要的存储波形数据的采样以产生下一个输出音频帧。 该选择基于在单个帧期间的音调移位演进的模型以及迄今为止由第二处理器使用的采样数量。 所选样品可用于第二处理器。 另一种方法允许第二处理器利用所提供的样本。 本发明同样涉及相应的处理器,相应的基于波表的声音合成系统,相应的设备和对应的软件程序产品。