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confidence scores are 0 best to 100 worst

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8989 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Brian West 2008-07-10 19:32:43 +00:00
parent 04d1d7afb1
commit dd01445d2a
1 changed files with 9 additions and 3 deletions
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12
src/mod/asr_tts/mod_pocketsphinx/mod_pocketsphinx.c
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@ -33,6 +33,7 @@
#include <switch.h> #include <switch.h>
#include <pocketsphinx.h> #include <pocketsphinx.h>
#include <err.h> #include <err.h>
#include <logmath.h>
SWITCH_MODULE_LOAD_FUNCTION(mod_pocketsphinx_load); SWITCH_MODULE_LOAD_FUNCTION(mod_pocketsphinx_load);
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_pocketsphinx_shutdown); SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_pocketsphinx_shutdown);
@ -354,7 +355,7 @@ static switch_status_t pocketsphinx_asr_get_results(switch_asr_handle_t *ah, cha
{ {
pocketsphinx_t *ps = (pocketsphinx_t *) ah->private_info; pocketsphinx_t *ps = (pocketsphinx_t *) ah->private_info;
switch_status_t status = SWITCH_STATUS_SUCCESS; switch_status_t status = SWITCH_STATUS_SUCCESS;
int32_t score; int32_t conf, lconf;
if (switch_test_flag(ps, PSFLAG_BARGE)) { if (switch_test_flag(ps, PSFLAG_BARGE)) {
switch_clear_flag_locked(ps, PSFLAG_BARGE); switch_clear_flag_locked(ps, PSFLAG_BARGE);
@ -365,8 +366,13 @@ static switch_status_t pocketsphinx_asr_get_results(switch_asr_handle_t *ah, cha
switch_mutex_lock(ps->flag_mutex); switch_mutex_lock(ps->flag_mutex);
switch_clear_flag(ps, PSFLAG_HAS_TEXT); switch_clear_flag(ps, PSFLAG_HAS_TEXT);
score = ps_get_prob(ps->ps, &ps->uttid); conf = ps_get_prob(ps->ps, &ps->uttid);
ps->confidence = score - score - score / 1000; lconf = logmath_log_to_ln(ps_get_logmath(ps->ps), conf);
ps->confidence = lconf - lconf - lconf;
/* 0(confident) to 100(not confident) score */
if (ps->confidence > 100) {
ps->confidence = 100;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Recognized: %s, Score: %d\n", ps->hyp, ps->confidence); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Recognized: %s, Score: %d\n", ps->hyp, ps->confidence);
switch_mutex_unlock(ps->flag_mutex); switch_mutex_unlock(ps->flag_mutex);