Feature #883

audio normalisation

Added by Matthias Mauch about 10 years ago. Updated about 10 years ago.

Status:NewStart date:2014-03-04
Priority:NormalDue date:
Assignee:-% Done:

0%

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Description

Before analysis starts, it would be great if the audio could be normalised to either

  • max(abs(audio)) = 1, or
  • percentile(abs(audio), 0.95) = 0.5 (or related percentile normalisation)

This would be good for analysis and display purposes.

History

#1 Updated by Matthias Mauch about 10 years ago

This would be good for analysis and display purposes.

Just to flesh this out briefly:

  • for visualisation it would obviously be helpful if the waveform and spectrogram representations made good use of the range they're given
  • for analysis one could assign lower probability to low-amplitude signals, thus reducing the number of false positive pitch detections (and hence faster annotation)

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