Silero V5

We now support the newest Silero model, Silero v5. It is not activated unless you set the model configuration parameter to the string "v5". You can test it out here. The reason it is not the default is that if you have tweaked some of the parameters such as positiveSpeechThreshold, redemptionMs, etc, you will likely have to find new values that work better with v5.

The frame size is automatically set based on the model: 512 samples for the "v5" model and 1536 samples for the "legacy" model. You no longer need to configure frameSamples manually.