Reducing waiting time in automatic captioned relay service using short pause in voice activity detection
Kiettiphong Manovisut, Nattanun Thatphithakkul, Pokpong Songmuang · 2017
The Automatic Captioned Relay Service is crucial for hearing disabilities or hard-of-hearing to communicate with others in real life. This service uses an Automatic Speech Recognition (ASR) to transcribe speech to a caption. If can reduce waiting time from non-streaming speech recognition, the relay service will support more users. In this paper, we proposed a method for improving a voice activity detection (VAD) using a short pause as endpoint based on dual-threshold method. This method reduces waiting time of the captions results. The experimental results show that the propose method reduces 19.10% of waiting time without losing the accuracy of captions when compare with traditional VAD.