首页>
外国专利>
Pitch extraction methods and systems for speech coding using multiple time lag extraction
Pitch extraction methods and systems for speech coding using multiple time lag extraction
展开▼
机译:使用多时滞提取进行语音编码的基音提取方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of attempting to determine a pitch period of an audio signal using a correlation-based signal derived from the audio signal. The correlation-based signal has known peaks each corresponding to a respective one of known time lags. The method comprises: identifying a time lag among the time lags; determining if there exists another time lag (i) within a time lag range of a respective one of one or more integer multiples of the identified time lag, and (ii) corresponding to a peak exceeding a peak threshold; and if the determination of step (a) passes, then returning the identified time lag as a time lag indicative of the pitch period.
展开▼