Teamsbot: STT phrase hints, multi-lang, follow-up window, known speakers collection

Made-with: Cursor

modules/connectors/connectorVoiceGoogle.py

@@ -9,7 +9,7 @@ import json
 import html
 import asyncio
 import logging
-from typing import Dict, Optional, Any
+from typing import Dict, Optional, Any, List
 from google.cloud import speech
 from google.cloud import translate_v2 as translate
 from google.cloud import texttospeech
@@ -60,7 +60,9 @@ class ConnectorGoogleSpeech:
     
     async def speechToText(self, audioContent: bytes, language: str = "de-DE", 
                            sampleRate: int = None, channels: int = None,
-                           skipFallbacks: bool = False) -> Dict:
+                           skipFallbacks: bool = False,
+                           phraseHints: Optional[list] = None,
+                           alternativeLanguages: Optional[list] = None) -> Dict:
         """
         Convert speech to text using Google Cloud Speech-to-Text API.
         
@@ -149,12 +151,21 @@ class ConnectorGoogleSpeech:
                 "audio_channel_count": channels,
                 "language_code": language,
                 "enable_automatic_punctuation": True,
-                "model": "latest_long",  # Try latest_long model for better recognition
+                "model": "latest_long",
-                "enable_word_time_offsets": True,  # Enable word-level timing
+                "enable_word_time_offsets": True,
-                "enable_word_confidence": True,    # Enable word-level confidence
+                "enable_word_confidence": True,
-                "max_alternatives": 3,             # Try more alternatives
+                "max_alternatives": 3,
-                "use_enhanced": True               # Use enhanced model if available
+                "use_enhanced": True,
             }
+
+            if phraseHints:
+                configParams["speech_contexts"] = [speech.SpeechContext(
+                    phrases=phraseHints,
+                    boost=15.0,
+                )]
+
+            if alternativeLanguages:
+                configParams["alternative_language_codes"] = alternativeLanguages
             
             # Only add sample_rate_hertz if needed (not for WEBM_OPUS)
             if useSampleRate:

modules/features/teamsbot/service.py

@@ -94,9 +94,11 @@ class TeamsbotService:
         # Speaker attribution: simple last-caption-speaker model
         self._lastCaptionSpeaker: Optional[str] = None
         self._unattributedTranscriptIds: List[str] = []
+        self._knownSpeakers: set = set()
 
         # Debounced name trigger: wait for speaker to finish before AI analysis
         self._pendingNameTrigger: Optional[Dict[str, Any]] = None
+        self._followUpWindowEnd: float = 0.0
 
     # =========================================================================
     # Session Lifecycle
@@ -469,12 +471,18 @@ class TeamsbotService:
             # Treat sampleRate=0 as unknown (triggers auto-detection)
             effectiveSampleRate = sampleRate if sampleRate and sampleRate > 0 else None
 
+            phraseHints = list(self._knownSpeakers)
+            if self.config.botName:
+                phraseHints.append(self.config.botName)
+
             sttResult = await voiceInterface.speechToText(
                 audioContent=audioBytes,
                 language=self.config.language or "de-DE",
                 sampleRate=effectiveSampleRate,
                 channels=1,
                 skipFallbacks=True,
+                phraseHints=phraseHints if phraseHints else None,
+                alternativeLanguages=["en-US"],
             )
 
             if sttResult and sttResult.get("success") and sttResult.get("text"):
@@ -512,6 +520,7 @@ class TeamsbotService:
 
         prevSpeaker = self._lastCaptionSpeaker
         self._lastCaptionSpeaker = normalizedSpeaker
+        self._knownSpeakers.add(normalizedSpeaker)
 
         if prevSpeaker is None and self._unattributedTranscriptIds:
             from . import interfaceFeatureTeamsbot as interfaceDb
@@ -719,6 +728,20 @@ class TeamsbotService:
                 asyncio.create_task(self._checkPendingNameTrigger())
             return
 
+        # Follow-up window: after a bot response, trigger AI for any human speech
+        # without requiring the bot name — the AI decides via shouldRespond
+        if (
+            source == "audioCapture"
+            and not self._isBotSpeaker(speaker)
+            and time.time() < self._followUpWindowEnd
+            and not self._pendingNameTrigger
+        ):
+            isNew = self._setPendingNameTrigger(sessionId, interface, voiceInterface, websocket, createdTranscript)
+            if isNew:
+                logger.info(f"Session {sessionId}: Follow-up window trigger (no name needed)")
+                asyncio.create_task(self._checkPendingNameTrigger())
+            return
+
         # Periodic trigger (only when no debounce pending)
         if not self._pendingNameTrigger:
             shouldTrigger = self._shouldTriggerAnalysis(text)
@@ -1149,7 +1172,8 @@ class TeamsbotService:
                 self._lastTranscriptText = speechResult.responseText
                 self._lastTranscriptId = botTranscript.get("id")
 
-                logger.info(f"Bot responded in session {sessionId}: intent={speechResult.detectedIntent}")
+                self._followUpWindowEnd = time.time() + 15.0
+                logger.info(f"Bot responded in session {sessionId}: intent={speechResult.detectedIntent}, follow-up window open for 15s")
 
             # Step 5: Execute AI-issued commands (if any)
             if speechResult.commands:

modules/interfaces/interfaceVoiceObjects.py

@@ -67,7 +67,9 @@ class VoiceObjects:
     
     async def speechToText(self, audioContent: bytes, language: str = "de-DE", 
                           sampleRate: int = None, channels: int = None,
-                          skipFallbacks: bool = False) -> Dict[str, Any]:
+                          skipFallbacks: bool = False,
+                          phraseHints: list = None,
+                          alternativeLanguages: list = None) -> Dict[str, Any]:
         """
         Convert speech to text using Google Cloud Speech-to-Text API.
         
@@ -77,12 +79,14 @@ class VoiceObjects:
             sampleRate: Audio sample rate (auto-detected if None)
             channels: Number of audio channels (auto-detected if None)
             skipFallbacks: If True, skip fallback attempts (use when audio format is known)
+            phraseHints: Optional list of phrases to boost recognition (names, terms)
+            alternativeLanguages: Optional list of additional language codes for multi-language
             
         Returns:
             Dict containing transcribed text, confidence, and metadata
         """
         try:
-            logger.info(f"🎤 Speech-to-text request: {len(audioContent)} bytes, language: {language}")
+            logger.info(f"Speech-to-text request: {len(audioContent)} bytes, language: {language}")
             
             connector = self._getGoogleSpeechConnector()
             result = await connector.speechToText(
@@ -90,7 +94,9 @@ class VoiceObjects:
                 language=language,
                 sampleRate=sampleRate,
                 channels=channels,
-                skipFallbacks=skipFallbacks
+                skipFallbacks=skipFallbacks,
+                phraseHints=phraseHints,
+                alternativeLanguages=alternativeLanguages,
             )
             
             if result["success"]: