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Merge pull request #50 from imonlinux/refractory-rejection-loop_#48

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Update audio_engine.py issue: 48
This commit is contained in:
imonlinux
2025-12-20 13:35:34 -08:00
committed by GitHub
parent 22e94fc92b 8d135dc51b
commit 670cd52725
1 changed files with 20 additions and 10 deletions
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linux_voice_assistant/audio_engine.py
+20 -10
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@@ -5,7 +5,7 @@ import logging
import threading
import time
import warnings
from typing import List, Optional, Union
from typing import Dict, List, Optional, Union
import numpy as np
import soundcard as sc
@@ -56,7 +56,9 @@ class AudioEngine:
micro_inputs: List[np.ndarray] = []
oww_inputs: List[np.ndarray] = []
has_oww = False
last_active: Optional[float] = None
# Track last activation time per wake word (by id or phrase)
last_active_by_id: Dict[str, float] = {}
try:
while True:
@@ -75,7 +77,7 @@ class AudioEngine:
oww_features.reset()
# Allow immediate activation (don't enforce refractory here)
last_active = None
last_active_by_id.clear()
# Flush hardware buffer
try:
@@ -173,16 +175,24 @@ class AudioEngine:
wake_phrase = getattr(
wake_word, "wake_word", "wake word"
)
wake_id = getattr(wake_word, "id", None)
wake_id_attr = getattr(wake_word, "id", None)
# Use id if available, otherwise phrase string as key
id_key = wake_id_attr or wake_phrase
_LOGGER.debug(
"Wake word ACTIVATED: %s (id=%s)",
wake_phrase,
wake_id,
wake_id_attr,
)
now = time.monotonic()
last_active = last_active_by_id.get(id_key)
# If refractory_seconds <= 0, disable gating
refractory = max(self.state.refractory_seconds, 0.0)
if (last_active is None) or (
(now - last_active)
> self.state.refractory_seconds
(now - last_active) > refractory
):
_LOGGER.debug(
"Wake word ACCEPTED (phrase=%s); "
@@ -191,19 +201,19 @@ class AudioEngine:
0.0
if last_active is None
else now - last_active,
self.state.refractory_seconds,
refractory,
)
last_active_by_id[id_key] = now
self.state.loop.call_soon_threadsafe(
self.state.satellite.wakeup, wake_word
)
last_active = now
else:
_LOGGER.debug(
"Wake word REJECTED by refractory period "
"(phrase=%s, Δt=%.2f < %.2f)",
wake_phrase,
now - last_active,
self.state.refractory_seconds,
refractory,
)
# Stop word detection