la-cupula extractor. minor changes
la-cupula extractor. minor changes

- set a common silence threshold of -25dB
- TruePeakDetector: reduce resampling  quality for speed.

carthach/essentia,carthach/essentia,MTG/essentia,MTG/essentia,carthach/essentia,MTG/essentia,MTG/essentia,carthach/essentia,MTG/essentia,carthach/essentia