Delay bounds for low-bit-rate voice transport over IP networks
Danny DeVleeschauwer, J.H. Janssen, Guido H. Petit · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
The mouth-to-ear delay bounds that can be tolerated for undistorted voice are well known and standardized in the ITU-T Recommendations. In this paper, similar delay bounds are determined for voice that is transported in compressed form over an IP network. More precisely, the dependency of these bounds on the low bit rate codecs used, the amount of echo control performed and the way the IP network is accessed, is investigated in detail.