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feat(voice): randomly pick thinking sound from all 7 built-in clips per session 

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
hailin 2026-03-09 06:56:31 -07:00
parent 38bea33074
commit afc1ae6fbe
1 changed files with 14 additions and 9 deletions
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23
packages/services/voice-agent/src/agent.py
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@ -387,16 +387,21 @@ async def entrypoint(ctx: JobContext) -> None:
_cleanup_ref.append(_on_room_disconnect)
# --- Thinking state audio feedback ---
# BackgroundAudioPlayer listens for AgentStateChangedEvent from the
# session. When state transitions to "thinking" (STT done, waiting for
# LLM response), it plays the built-in keyboard typing sound through
# the LiveKit audio track. The sound stops automatically when the agent
# enters "speaking" state (TTS begins). This gives the user audible
# feedback that the AI is processing their request.
# Available built-in clips: KEYBOARD_TYPING, KEYBOARD_TYPING2,
# OFFICE_AMBIENCE, CITY_AMBIENCE, FOREST_AMBIENCE, CROWDED_ROOM, HOLD_MUSIC
# Randomly pick one of all available built-in clips each session.
_all_clips = [
BuiltinAudioClip.KEYBOARD_TYPING,
BuiltinAudioClip.KEYBOARD_TYPING2,
BuiltinAudioClip.OFFICE_AMBIENCE,
BuiltinAudioClip.CITY_AMBIENCE,
BuiltinAudioClip.FOREST_AMBIENCE,
BuiltinAudioClip.CROWDED_ROOM,
BuiltinAudioClip.HOLD_MUSIC,
]
import random as _random
_chosen_clip = _random.choice(_all_clips)
logger.info("Thinking sound this session: %s", _chosen_clip)
bg_audio = BackgroundAudioPlayer(
thinking_sound=BuiltinAudioClip.KEYBOARD_TYPING,
thinking_sound=_chosen_clip,
)
await bg_audio.start(room=ctx.room, agent_session=session)