output_prob.c File Reference

Calculates log of output probability of a dataframe for all states of a DD, an SC or a CD HMM. More...

Functions
void	spr_am_output_prob (char *dptr, SprHmmHmm *hmm)

Detailed Description

Calculates log of output probability of a dataframe for all states of a DD, an SC or a CD HMM.

Author

Jacques Duchateau

Date

3/94

Revision History:

3/94 - JD

written for HMM V5.0 (ANSI-C), extracted from vit_align (V4.2).

5/94 - JD

adapted for 'top_n' gaussian evaluation

8/94 - JD

adapted for selection of gaussians per state; static allocations changed to dynamic ones (pvec, index)

9/94 - JD

flooring of output probabilities in SC_HMM case changed: 'logminout' is now relative to the probability of the best gaussian, instead of an absolute flooring constant.

8/95 - KD

flooring on the gaussian probs. instead of on the output probs.

8/95 - JD

changes for multiple codebooks in continuous cases; changes for new hmm structures.

10/95 - JD

added possibility to select which states to evaluate.

7/97 - JD

rewritten for extended hmm structures.