MFCC Deltas & Delta-Deltas

Speech Recognition Toolkit

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MFCC Deltas & Delta-Deltas

Forum: Help

Creator: Colin Gilbert

Created: 2014-09-02

Updated: 2014-09-02

Colin Gilbert - 2014-09-02

Hi,

Does the engine in Pocketsphinx/Sphinx4 make use of the delta and delta-deltas of the MFCC coefficients? I know that the log-energy is stored instead of the 0'th vector in a set of MFCCs, but I did not see anything pertaining to directionality or acceleration vectors. Are those computed on the fly prior to use?

Thanks!
Colin

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
- Nickolay V. Shmyrev - 2014-09-02
  
  Does the engine in Pocketsphinx/Sphinx4 make use of the delta and delta-deltas of the MFCC coefficients?
  
  No
  
  Are those computed on the fly prior to use?
  
  Yes
  
  If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

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