How can we manage stop functionality if i want the avatar to stop speaking ?

Currently i am using this function

const stopAgent = async () => {
videoRef.current.srcObject = undefined;
videoRef.current.src = agentManagerRef.current.agent.presenter.idle_video;
}; this works fine the avatar stops speaking in middle
but with this approach if i send something again in input to speak it adds a the media chunk that was previously stopped to the new response.