is silero vad supporting streaming? because the mo...
# ask-ai
c
is silero vad supporting streaming? because the model v6.2 has streaming now.
t
Thanks for reaching out, Filippo. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
Thanks — I’m responding to your question about whether the Silero VAD supports streaming, and specifically whether LiveKit’s Silero VAD integration takes advantage of Silero v6.2’s streaming features. Short answer: • Yes — LiveKit’s Silero VAD plugin supports streaming audio processing. It processes audio frames in real time and exposes a streaming interface via
vad.stream()
so you can feed audio incrementally and receive voice-activity events (for example,
END_SPEAKING
) for turn detection. What that means practically: • The VAD runs locally on the CPU and is built for streaming use cases (real-time frame-by-frame processing and end-of-utterance detection). • The documentation does not explicitly state the exact Silero model version used (so I cannot confirm whether the integration is specifically using Silero v6.2 under the hood). However, LiveKit’s implementation is designed around streaming workflows and aligns with the streaming functionality introduced in recent Silero releases. If you need next steps, I can: • Show a short example of how to use
vad.stream()
in your LiveKit Agents pipeline. • Check whether your particular LiveKit release or package includes Silero v6.2 (if you tell me which LiveKit version or package you’re running). • Help adapt your pipeline for low-latency turn detection or integrate the VAD events into your conversational logic. Which would you like me to help with next? Sources: Silero VAD plugin | LiveKit Documentation | Speech-to-text (STT) models overview | LiveKit Documentation | LLM-Powered Content Filter | LiveKit Documentation
c
best params for silero vad 6.2?
t
Thanks — I’m responding to your request about the best parameters for Silero VAD (you mentioned v6.2). I’ll share recommended parameter values used with LiveKit’s Silero VAD plugin and give tuning guidance depending on your use case. Recommended starting parameters • `min_speech_duration`: 0.05 (seconds) — minimum speech length to start a speech chunk. • `min_silence_duration`: 0.55 (seconds) — silence length to consider the user finished speaking. • `prefix_padding_duration`: 0.5 (seconds) — audio padding added to the start of each speech chunk. • `max_buffered_speech`: 60.0 (seconds) — maximum speech kept in buffer before processing. • `activation_threshold`: 0.5 — confidence threshold to classify audio as speech (lower = more sensitive). • `sample_rate`: 16000 (supported: 8000 or 16000 Hz). • `force_cpu`: True — forces CPU inference. How to tune these for common needs • Faster agent responses / lower latency: ◦ Reduce
min_silence_duration
to ~0.3–0.5s. This makes the system detect end-of-utterance sooner but can increase false splits. • Fewer interruptions (more conservative turn endings): ◦ Increase
min_silence_duration
to ~0.7–1.0s to avoid cutting off longer pauses. • Noisy environments: ◦ Increase
activation_threshold
to ~0.6–0.7 to reduce false positives from noise. • Very short utterances (e.g., quick confirmations): ◦ Lower
min_speech_duration
slightly (but be careful—too low increases false triggers). • Low-bandwidth / telephony: ◦ Use
sample_rate
8000 if your audio source is narrowband. Practical tips • Start with the defaults above and adjust one parameter at a time while testing with representative audio. •
min_silence_duration
has the biggest impact on perceived responsiveness vs. stability of turn detection — tune this based on how interruptible you want the agent to be. • Prewarm the VAD model once per process to reduce latency on first use. Notes about v6.2 • The LiveKit Silero VAD integration provides a streaming interface (
vad.stream()
) and is designed for real-time processing. I cannot confirm the exact Silero model version in your LiveKit build without knowing which LiveKit release/package you’re running — but these parameters are applicable across Silero VAD integrations. Would you like: • A short example showing
silero.VAD.load()
with these parameters and
vad.stream()
usage? • Help tuning values for a specific scenario (call center, noisy room, short-turn dialog, etc.) — tell me the environment and goals and I’ll suggest exact numbers to try. Sources: Silero VAD plugin | LiveKit Documentation | VAD and turn detection configuration guide | LiveKit | Gemini Realtime Agent with Live Vision | LiveKit Documentation | Repeater | LiveKit Documentation | Improving voice AI's turn detection with transformers