Packet Delay Distribution Model for Investigating Delay of Network Speech Recognition

Asril Jarin (Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia)
Suryadi Suryadi (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia)
Kalamullah Ramli (Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 5, No 1: January 2017

Unlike multimedia streaming applications that require a smooth playback at the client, application of network speech recognition (NSR) that recognizes speech signal in a sentence-by-sentence manner might tolerate an acceptable delay. The acceptable delay is a user-defined time in which the entire sentence data should be received by the server. We proposed a calculation method to investigate the acceptable delay of network speech recognition that employs a speech segmenter to send speech signal sentence-by-sentence over TCP channel to the server. The calculation multiplies the mean packet delay of TCP flow at steady-state with the number of created packets. For validation we implemented a MATLAB program and solved it using 2500 Indonesian speech sentences. The results were then compared with the results of our previous model that used a transient analysis method. It was found that this calculation method is not appropriate due to the transient behavior of the streaming sentences.