Streaming ASR emits partial text continuously with very low delay, then refines it as more audio arrives. It is harder than batch transcription because the model must commit early, and it is the backbone of real-time captioning and conversational AI.
The book · Volume 6 of 7
AI for Video: A Complete Guide to Intelligence in Video Products: From Models and Inference to Computer Vision, Speech, Search, and Generative Video
Streaming ASR has to commit to words before the sentence ends, so partial results flicker and accuracy lags behind batch transcription. Volume 6 covers streaming ASR in detail within speech AI: recognition models and vendors, diarization, TTS, transcripts as data for search and the deployment topologies that keep recognition delay low. Written by Nikolay Sapunov, CEO at Fora Soft.
Choosing a streaming ASR engine for live captions or voice features?
Send us audio from your product, and we will benchmark streaming ASR engines on accuracy and delay and recommend one with a cost estimate. 250+ video products shipped since 2005.
