espnet2.tts.feats_extract.yin.cumulativeMeanNormalizedDifferenceFunction

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espnet2.tts.feats_extract.yin.cumulativeMeanNormalizedDifferenceFunction(df, N, eps=1e-08)

Compute cumulative mean normalized difference function (CMND).

This corresponds to equation (8) in [1]

• Parameters:
  • df – Difference function
  • N – length of data
• Returns: cumulative mean normalized difference function
• Return type: list