From ebb35b5d97753f074fec5bfe0e20aad9077c1adb Mon Sep 17 00:00:00 2001
From: Brian West <brian@freeswitch.org>
Date: Sat, 12 Jul 2008 15:41:04 +0000
Subject: [PATCH] tweaks to speech tools to score differently for pocketsphinx

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9003 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
 scripts/js_modules/SpeechTools.jm | 44 ++++++++++++++++++++++---------
 scripts/ps_pizza.js               |  8 +++---
 2 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/scripts/js_modules/SpeechTools.jm b/scripts/js_modules/SpeechTools.jm
index c1252732c2..a98fde46d6 100644
--- a/scripts/js_modules/SpeechTools.jm
+++ b/scripts/js_modules/SpeechTools.jm
@@ -63,7 +63,7 @@ function SpeechDetect(session, mod, ip) {
 	this.AutoUnload = false;
 	this.debug = false;
 
-	/* Set the TTS info*/
+	/* Set the TTS info */
 	this.setTTS = function (tts_eng, tts_voice) {
 		this.tts_eng = tts_eng;
 		this.tts_voice = tts_voice;		
@@ -79,7 +79,7 @@ function SpeechDetect(session, mod, ip) {
 		this.audio_ext = audio_ext;
 	}
 	
-	/* Add a grammar to be used*/
+	/* Add a grammar to be used */
 	this.addGrammar = function(grammar_object) {
 		this.grammar_hash[grammar_object.grammar_name] = grammar_object;
 	}
@@ -180,18 +180,36 @@ function SpeechDetect(session, mod, ip) {
 					console_log("debug", "----Heard [" + interp.input + "]\n");
 					console_log("debug", "----Hit score " + interp.@score + "/" + grammar_object.min_score + "/" + grammar_object.confirm_score + "\n");
 				}
-				
-				if (interp.@score >= grammar_object.min_score) {
-					if (interp.@score < grammar_object.confirm_score) {
-						rv.push("_confirm_");
-					}
 
-					eval("xo = interp." + grammar_object.obj_path + ";");
-					for (x = 0; x < xo.length(); x++) {
-						rv.push(xo[x]);
+				if (this.mod == "pocketsphinx") {
+					/* pocketsphinx scores 0 best to 100 worst. */
+					if (interp.@score >= grammar_object.min_score) {
+						if (interp.@score >= grammar_object.confirm_score) {
+							rv.push("_confirm_");
+						}
+						
+						eval("xo = interp." + grammar_object.obj_path + ";");
+						for (x = 0; x < xo.length(); x++) {
+							rv.push(xo[x]);
+							console_log("info", "----" +xo[x] + "\n"); 
+						}
+					} else {
+						rv.push("_no_idea_");
 					}
 				} else {
-					rv.push("_no_idea_");
+					if (interp.@score >= grammar_object.min_score) {
+						if (interp.@score < grammar_object.confirm_score) {
+							rv.push("_confirm_");
+						}
+						
+						eval("xo = interp." + grammar_object.obj_path + ";");
+						for (x = 0; x < xo.length(); x++) {
+							rv.push(xo[x]);
+							console_log("info", "----" +xo[x] + "\n"); 
+						}
+					} else {
+						rv.push("_no_idea_");
+					}
 				}
 
 				delete interp;
@@ -234,7 +252,7 @@ function SpeechObtainer(asr, req, wait_time) {
 
 	this.waitTime = wait_time + 0;
 
-	/* Set the TTS info*/
+	/* Set the TTS info */
 	this.setTTS = function (tts_eng, tts_voice) {
 		this.tts_eng = tts_eng;
 		this.tts_voice = tts_voice;		
@@ -277,7 +295,7 @@ function SpeechObtainer(asr, req, wait_time) {
 		this.add_sound = add_sound;		
 	}
 
-	/* Add acceptable items (comma sep list)*/
+	/* Add acceptable items (comma sep list) */
 	this.addItem = function(item) {
 		ia = item.split(",");
 		var x;
diff --git a/scripts/ps_pizza.js b/scripts/ps_pizza.js
index f6d4ed45b9..75ea2ea58b 100644
--- a/scripts/ps_pizza.js
+++ b/scripts/ps_pizza.js
@@ -33,8 +33,8 @@ include("js_modules/SpeechTools.jm");
 
 function on_dtmf(a, b, c) {}
 
-var dft_min = 10;
-var dft_confirm = 50;
+var dft_min = 0;
+var dft_confirm = 78;
 
 /***************** Initialize The Speech Detector  *****************/
 var asr = new SpeechDetect(session, "pocketsphinx");
@@ -130,7 +130,7 @@ pizza.toppingsObtainer.addItemAlias("ham", "ham");
 
 /***************** Change Delivery Or Size Or Crust, Add/Rem Toppings Or Start Over  *****************/
 pizza.arsoObtainer = new SpeechObtainer(asr, 1, 5000);
-pizza.arsoObtainer.setGrammar("pizza_arso", "", "result", dft_min, dft_confirm, true);
+pizza.arsoObtainer.setGrammar("pizza_arso", "", "result", dft_min, 50, true);
 pizza.arsoObtainer.setTopSound("GP-ARSO");
 pizza.arsoObtainer.setBadSound("GP-NI");
 pizza.arsoObtainer.addItemAlias("^delivery$", "delivery");
@@ -142,7 +142,7 @@ pizza.arsoObtainer.addItemAlias("^remove\\s*", "rem_topping");
 
 /***************** Yes? No? Maybe So?  *****************/
 pizza.yesnoObtainer = new SpeechObtainer(asr, 1, 5000);
-pizza.yesnoObtainer.setGrammar("pizza_yesno", "", "result", dft_min, dft_confirm, true);
+pizza.yesnoObtainer.setGrammar("pizza_yesno", "", "result", dft_min, 40, true);
 pizza.yesnoObtainer.setBadSound("GP-NI");
 pizza.yesnoObtainer.addItemAlias("^yes,^correct", "yes");
 pizza.yesnoObtainer.addItemAlias("^no", "no");