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Vocal Fry and other Metrics

Project description

#Resemble Speech Tools

This package contains collated tools for quantifying issues in speech clips.

The repo currently has support for detecting vocal fry (H2H1 metric proposed by Kane-Drugman):


from speechtools.metrics import get_creak_features

get_creak_features(waveform, fs, f0_min=20, f0_max=500, window=1600, hop=160, use_fixed_windows=False, return_frames=False

Special Parameters
  • use_fixed_frames: This needs to be True if user wants to override internally used window and hop sizes. If False, the default window and hop sizes specified by the KaneDrugman papers are used for analysis.
  • return_frames: When False the resulting metric is interpolated to be of waveform length.


There are also a few private functions bundled in for signal processing under speechtools.audio_utils:

  • Splitting up the signal into chunks of win_length strided by hop_size
  • Obtaining frame level LPC residuals


  1. Kane, J., Drugman, T., Gobl, C., (2013) "Improved automatic detection of creak", 27(4), pp. 1028-1047, Computer Speech and Language.
  2. Drugman, T., Kane, J., Gobl, C. (2012) "Resonator-based creaky voice detection", Proceedings of Interspeech.

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