Latest from Vartaa

What is word error rate (WER)? The most commonly used measure of speech-to-text accuracy is the word error rate (WER). It shows what percentage of words are missing, inserted, and mispronounced in the machine-generated transcript compared to a reference transcript.....................

What is time to first token? It is the time, measured from a user’s prompt to the first word of the output generated by a large language model. Measures the time elapsed between a user’s prompt and the first word.....................

Voice AI latency is the time between the caller finishing a sentence and the AI agent responding. It accumulates in the voice activity detection (VAD), speech recognition, language model processing, speech synthesis, and network transport modules. Most production agents take.....................

Voice activity detection (VAD) is a method that determines if a stream of audio contains human speech or only silence and background noise frame-by-frame. It’s used by voice AI systems to identify when a person begins speaking, when they end.....................

What is endpointing? The task a voice AI system performs to determine when a speaker has finished speaking so it can stop listening and start responding. It’s a combination of voice activity detection, silence timing, and now, more than ever,.....................