ITU-T G.1020 SPANISH-2006
話音質量和其他使用互聯網協議(IP)網絡的話音頻段應用的性能參數定義.12號研究組

Performance parameter definitions for quality of speech and other voiceband applications utilizing IP networks study group 12

標準號

ITU-T G.1020 SPANISH-2006

發布日期

2006年07月01日

實施日期

廢止日期

無

中國標準分類號

M10

發布單位

IX-ITU

引用標準

ITU-T G.107-2005 ITU-T G.113-2001 ITU-T G.14-2003 ITU-T G.177-1999 ITU-T I.356-2000 ITU-T P.51-1996 ITU-T P.57-2005 ITU-T P.1010-2004 ITU-T Y.1540-2002 ITU-T Y.1541-2006

適用范圍

This Recommendation defines a set of performance parameters for packet networks and end terminals that can assist in quantifying the end-to-end quality of speech and other voiceband applications. It is largely focused on quality impairments resulting from delay variation and packet loss which are peculiar to IP and other packet-based technologies, and which do not appear in traditional TDM networks. It discusses the interactions and trade-offs among these packet impairments, and describes mechanisms such as de-jitter buffers and packet loss concealment for reducing their effects on the quality of speech and other applications.