Hi, How i collect all the metrics on agent script nodejs?

To collect metrics in a LiveKit agent script using Node.js, you can utilize the metrics module provided by LiveKit Agents. According to the LiveKit Agents documentation, you can subscribe to the

metrics_collected

event to capture metrics during an active session. Here's a basic example: 1. Import Metrics Module: Import the metrics module from LiveKit Agents. 2. Subscribe to Metrics Event: Use the

metrics_collected

event to log or process the metrics.

const { metrics } = require('livekit-agents');

// Subscribe to metrics collection events
agent.on('metrics_collected', (mtrcs) => {
  // Log or process the metrics
  metrics.log_metrics(mtrcs);
});

Would you like more detailed information on specific metrics or further guidance on setting this up? Sources: - Capturing metrics | LiveKit Docs 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@millions-hair-24956 i am using usageCollector from metrics. is there anyway to debug why usageCollector doesnot collect the metrics?

It seems likely that debugging the

UsageCollector

in LiveKit involves ensuring that metrics are being correctly passed to it. According to the UsageCollector API documentation, the

UsageCollector

class is used to aggregate usage metrics over a session. Here are some steps you might consider for debugging: 1. Verify Event Subscription: Ensure that your agent is correctly subscribed to the

metrics_collected

event and that the event handler is being triggered. 2. Check Metrics Type: Confirm that the metrics being passed to the

UsageCollector

are of the correct type (e.g.,

STTMetrics

,

LLMMetrics

,

TTSMetrics

). The

UsageCollector

processes these specific types to update its summary. 3. Log Metrics: Add logging within the event handler to verify that metrics are being received and passed to the

UsageCollector

. 4. Inspect UsageCollector: After collecting metrics, use the

get_summary

method to check if the summary reflects the expected data. Here's a basic example of how you might set this up:

from livekit.agents import metrics

# Initialize UsageCollector
usage_collector = metrics.UsageCollector()

# Subscribe to metrics collection events
@agent.on("metrics_collected")
def on_metrics_collected(mtrcs):
    # Log the received metrics
    print(f"Received metrics: {mtrcs}")
    # Collect metrics
    usage_collector.collect(mtrcs)

# At some point, retrieve the summary
summary = usage_collector.get_summary()
print(f"Usage Summary: {summary}")

Would you like more detailed guidance on any specific part of this process? Sources: - UsageCollector API documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@millions-hair-24956 why TTSMetrics doesnot trigger an event?

It might be possible that the

TTSMetrics

event is not triggering due to a few common issues. According to the LiveKit documentation, metrics events, including those for TTS, are typically fired when a new metrics object is available during an active session. Here are some potential reasons and steps to troubleshoot: 1. Ensure Proper Subscription: Verify that your agent is correctly subscribed to the

metrics_collected

event. Without this subscription, the event handler won't be triggered. 2. Check TTS Activity: Confirm that there is active TTS processing occurring. If no text-to-speech operations are being performed, no

TTSMetrics

will be generated. 3. Verify Event Emission: Ensure that the TTS component is correctly emitting metrics. This might involve checking the implementation of the TTS component to see if it calls the

emit

method for metrics. 4. Debug Logging: Add logging within your event handler to confirm whether any metrics are being received and to check their types. If you need more detailed assistance, could you provide more context on how you're setting up the TTS and metrics collection? Sources: - LiveKit documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@millions-hair-24956 i am just receiving UOE Metrics and VAD Metrics

It seems likely that the issue of only receiving UOE (End-of-Utterance) and VAD (Voice Activity Detection) metrics, but not TTS metrics, could be due to a few reasons. Here are some steps to consider: 1. Verify TTS Operations: Ensure that TTS operations are actually being performed in your session. If no text-to-speech conversion is happening, TTS metrics won't be generated. 2. Check TTS Configuration: Confirm that the TTS component is properly configured and integrated into your LiveKit agent. This includes ensuring that the TTS model is correctly set up and that the agent is processing text for speech synthesis. 3. Event Subscription: Double-check that your agent is subscribed to the

metrics_collected

event and that the event handler is set up to process TTS metrics specifically. 4. Inspect Emission Logic: Look into the TTS component's logic to ensure it emits metrics. There might be a condition or error preventing the emission of TTS metrics. 5. Debugging: Add debug logs in your event handler to see if any TTS metrics are being received but not processed correctly. If you need more detailed guidance, could you provide more information on your TTS setup and how you're handling metrics? Sources: - https://docs.livekit.io/agents/build/metrics/#LLM 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.