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- Title
Application of RTP Stream Audio Playback Technology in 400 MHz DRTD System.
- Authors
Zhao Wenjie
- Abstract
This paper introduces the audio playback technology for wireless voice services in the DRTD system. The wired communication of the DRTD system is based on the SIP protocol and RTP stream for audio transmission. The audio stream is transmitted via the wireless air interface through such processing processes as mixing, windowing based VAD, caching, format conversion, and signaling control, and finally voice waveform playback is achieved at the mobile terminal, thus bridging the wired communication and wireless communication in the train dispatching communication and providing support for the core services of the DRTD system.
- Subjects
STREAMING audio; TELECOMMUNICATION systems; WIRELESS communications; DIGITAL communications; RADIO (Medium)
- Publication
Railway Signalling & Communication Engineering, 2023, Vol 20, Issue 12, p43
- ISSN
1673-4440
- Publication type
Article
- DOI
10.3969/j.issn.1673-4440.2023.12.008