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Teamsbot: lower audio RMS threshold, add 10s min cooldown for name-based AI triggers

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patrick-motsch 2026-02-27 22:38:29 +01:00
parent 0ee86070bd
commit 269b704812
1 changed files with 34 additions and 24 deletions
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58
modules/features/teamsbot/service.py
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@ -450,7 +450,7 @@ class TeamsbotService:
if captureDiagnostics and captureDiagnostics.get("rms") is not None:
try:
rmsVal = float(captureDiagnostics.get("rms"))
if rmsVal < 0.0015:
if rmsVal < 0.0003:
logger.debug(f"[AudioChunk] Skipping silent audio ({len(audioBytes)} bytes, rms={rmsVal:.6f})")
return
except Exception:
@ -763,32 +763,42 @@ class TeamsbotService:
now = time.time()
timeSinceLastCall = now - self._lastAiCallTime
# Bot name mentioned -> immediate trigger (OVERRIDES cooldown)
# Bot name detection — overrides the periodic cooldown but still
# respects a minimum re-trigger interval to prevent caption-event
# spam (multiple caption snapshots of the same utterance).
minNameRetriggerSeconds = 10
botNameLower = self.config.botName.lower()
transcriptLower = transcriptText.lower()
if botNameLower in transcriptLower:
logger.info(f"Trigger: Bot name '{self.config.botName}' detected in transcript (overrides cooldown): '{transcriptText[:60]}...'")
return True
# Also check first name and phonetically similar words (speech recognition artifacts)
botFirstName = botNameLower.split()[0] if " " in botNameLower else botNameLower
if len(botFirstName) >= 3:
for word in transcriptLower.split():
# Strip punctuation from word
cleanWord = word.strip(".,!?:;\"'()[]")
if not cleanWord or len(cleanWord) < 3:
continue
# Exact first name match
if cleanWord == botFirstName:
logger.info(f"Trigger: Bot first name '{botFirstName}' detected: '{transcriptText[:60]}...'")
return True
# Simple phonetic similarity: same first letter, similar length, high character overlap
if cleanWord[0] == botFirstName[0] and abs(len(cleanWord) - len(botFirstName)) <= 2:
common = sum(1 for c in set(botFirstName) if c in cleanWord)
similarity = common / max(len(set(botFirstName)), len(set(cleanWord)))
if similarity >= 0.6:
logger.info(f"Trigger: Phonetically similar to '{botFirstName}' -> '{cleanWord}' (sim={similarity:.2f}): '{transcriptText[:60]}...'")
return True
nameDetected = False
if botNameLower in transcriptLower:
nameDetected = True
else:
botFirstName = botNameLower.split()[0] if " " in botNameLower else botNameLower
if len(botFirstName) >= 3:
for word in transcriptLower.split():
cleanWord = word.strip(".,!?:;\"'()[]")
if not cleanWord or len(cleanWord) < 3:
continue
if cleanWord == botFirstName:
nameDetected = True
break
if cleanWord[0] == botFirstName[0] and abs(len(cleanWord) - len(botFirstName)) <= 2:
common = sum(1 for c in set(botFirstName) if c in cleanWord)
similarity = common / max(len(set(botFirstName)), len(set(cleanWord)))
if similarity >= 0.6:
nameDetected = True
break
if nameDetected:
if timeSinceLastCall < minNameRetriggerSeconds:
logger.debug(
f"Trigger: Bot name detected but within re-trigger cooldown "
f"({timeSinceLastCall:.1f}s < {minNameRetriggerSeconds}s)"
)
return False
logger.info(f"Trigger: Bot name detected in transcript: '{transcriptText[:60]}...'")
return True
# Cooldown check (only for non-name triggers)
if timeSinceLastCall < self.config.triggerCooldownSeconds: