late-businessperson-58140
12/17/2025, 9:44 AMtall-airline-16756
12/17/2025, 9:44 AMtall-airline-16756
12/17/2025, 9:44 AMlate-businessperson-58140
12/17/2025, 9:44 AMtall-airline-16756
12/17/2025, 9:44 AMsession.generate_reply and session.aclose() async functions that work when called elsewhere?
4. Is this code running inside a coroutine already, or at top level of a module? (Are you seeing "nonlocal" scope errors?)
5. Can you share the exact indentation/formatting of the original file (the pasted code lost indentation and backslashes)?
While you gather that, a few likely problem areas to check:
• Indentation and correct use of nonlocal — nonlocal call_should_end must be inside a nested function where call_should_end is defined in the enclosing scope.
• Registering/removing listeners — ensure session.on and session.off accept the same handler identity.
• Ensure asyncio.create_task(check_and_close()) runs on the same event loop as your session callbacks.
• Confirm session.generate_reply and session.aclose() don't block or raise when called from the task.
• Wrap API calls in try/except (you already do for delete_room) and log exceptions so failures aren't silent.
Tell me the answers to 1–4 (or paste exact error text), and paste the original file with proper indentation; I’ll propose a corrected version.late-businessperson-58140
12/17/2025, 9:45 AMtall-airline-16756
12/17/2025, 9:45 AMsession.on)?
4. Does on_state_change run when the user speaks? Add a quick log/print in it and tell me the output.
5. Does session.off("user_state_changed", on_state_change) actually remove the listener in your environment (do you know if session.off requires the same function object)?
6. Can you confirm session.generate_reply and session.aclose() are reliable when called from a background task (they work when called elsewhere)?
7. Please paste the original file with correct indentation (or the minimal runnable example) so I can propose a fixed version.
If you want, I can suggest a safe corrected pattern next (using an Event or timestamp check) once you confirm answers 1–4 or paste the properly indented code. Which would you prefer?late-businessperson-58140
12/17/2025, 9:46 AMtall-airline-16756
12/17/2025, 9:46 AMsession.generate_reply and session.aclose() async functions that work elsewhere?
4. Paste the exact file (with real indentation) or confirm this is running inside an async context.
If you want, paste the properly indented snippet now and I’ll provide a corrected implementation (uses an Event/timestamp, keeps handler references so off() works, and logs errors). Which do you prefer?
Sources: Company directory phone assistant | LiveKit docslate-businessperson-58140
12/17/2025, 9:47 AMtall-airline-16756
12/17/2025, 9:47 AMnonlocal call_should_end not placed correctly so on_state_change doesn't update the outer variable.
• The temporary listener isn't the same function object when removing (so session.off fails).
• The background task runs on a different loop or races with the event handler (so speaking doesn't reset the flag in time).
• Silent exceptions in check_and_close() causing immediate cleanup.
I can provide a corrected pattern. Before that, which do you want: 1) Paste your exact, properly indented file and I’ll patch it in-place. 2) I’ll give a minimal, fixed example now (uses an Event/timestamp, keeps handler refs, logs errors).
Pick 1 or 2.
Sources: Agents v0.x migration guide - Python | LiveKit docs | Agents Framework | livekit/livekit_composite | DeepWiki | How to detect and handle silence during calls | examples/voice_agents | livekit/livekit_composite | DeepWiki | Job lifecycle | LiveKit docslate-businessperson-58140
12/17/2025, 10:06 AMtall-airline-16756
12/17/2025, 10:07 AMgenerate_reply timeout and the call ending immediately after the user speaks. I'll address both and give a concise, safe fix you can try.
Why this is happening (short):
• The Realtime error means the LLM reply generation never produced the expected generation_created event, so generate_reply timed out. When that fails, your task may cancel or hit an exception path that triggers cleanup/disconnect.
• Your inactivity logic also likely has a race or scope bug: the flag/timestamp meant to prevent closing isn't being updated in time (or listener removal fails), so the monitor thinks the user is inactive and ends the call immediately when speech happens.
What to do now — two changes to make together:
1) Make generate_reply robust
• Wrap generate_reply in try/except and add retry/fallback behavior. Log failures and avoid calling room-close on transient LLM errors.
Example pattern:
try:
await session.generate_reply(instructions=...)
except Exception as e:
logger.warning("generate_reply failed, will retry: %s", e)
# optional retry or fallback; do NOT trigger call shutdown here
2) Replace your flag-based short-lived listener with a timestamp+monitor pattern (avoids nonlocal/handler identity issues)
• Maintain a last_active = time.time() updated whenever user becomes active.
• Run a background task that checks elapsed time and only disconnects after threshold exceeded.
• Ensure the event handler that updates last_active is the same function object you register/unregister and that you log inside it to confirm it runs.
Minimal corrected structure:
import asyncio, time, logging
SILENCE_THRESHOLD = 4.0
CHECK_INTERVAL = 0.5
logger = logging.getLogger(__name__)
last_active = time.time()
def on_user_state_changed(ev):
global last_active
<http://logger.info|logger.info>("user_state_changed %s -> %s", ev.old_state, ev.new_state)
if ev.new_state in ("speaking", "listening"):
last_active = time.time()
session.on("user_state_changed", on_user_state_changed)
async def monitor_and_close():
try:
while True:
await asyncio.sleep(CHECK_INTERVAL)
if time.time() - last_active >= SILENCE_THRESHOLD:
<http://logger.info|logger.info>("Inactivity threshold reached, ending call")
try:
await session.generate_reply(instructions="I am turning off this call, thank you")
except Exception as e:
logger.warning("generate_reply failed during shutdown: %s", e)
try:
await session.aclose()
except Exception as e:
logger.warning("aclose failed: %s", e)
break
finally:
session.off("user_state_changed", on_user_state_changed)
asyncio.create_task(monitor_and_close())
Quick checks to verify after applying:
• Add logs in on_user_state_changed and in the monitor loop to confirm last_active updates and the monitor sees the new timestamp.
• Confirm session.off("user_state_changed", on_user_state_changed) actually removes the same function object.
• Confirm generate_reply works elsewhere; if it times out, add retries or use a fallback LLM adapter.
If you want, paste the exact indented file (especially the parts around generate_reply and the state listener) and I’ll point to the precise lines to change. Which would you prefer?
Sources: Avoiding Room ID Reuse When Re-Creating Rooms With the Same Name | examples/voice_agents | livekit/livekit_composite | DeepWiki | Realtime model plugins | LiveKit Docs | Events and error handling | LiveKit docs | examples/frontdesk | livekit/livekit_composite | DeepWiki