RTP数据分析

How to decode and playback G729 audio streams:
http://wiki.media5corp.com/wiki/index.php?title=Debug_%26_Troubleshooting_-_How_to_decode_and_playback_G729_audio_streams
使用wildpackets omnipeek、wireshark、rtptool、voice_age
分析G.729语音质量:

G.729

方法一：

1 ：wireshark： Capture the traffic using Etherealand dumping the RTP data (Statistics -> RTP -> Show all streams ->SaveAs)。

2：Use rtpdump (http://www.cs.columbia.edu/IRT/software/rtptools/)to dump only the audio payload (“rtpdump -F payload -f in.rtp -o out.rtp”)

3：Use VoiceAge decoder. In windows CMD, (va_g729_decoder.exe out.rtp out.pcm).

4: Play out.pcm useing cool edit pro 2.0 or GoldWave 16bit signed/unsigned 8000Hz.

方法二：1 ：wireshark： Capture the traffic using Etherealand dumping the RTP data (Statistics -> RTP -> Show all streams ->analyze->--Save Payload( select .raw and forward))。注分析前需要去掉DTMF-Rtpevent，
否则影响最终的729decode.

2：Use VoiceAge decoder. In windows CMD, (va_g729_decoder.exe out.raw out.pcm).

3: Play out.pcm useing cool edit pro 2.0 or GoldWave 16bit signed/unsigned 8000Hz.

Wireshark Sniffing: SIP and RTP
http://www.unappel.ch/public/100119-wireshark-xlite/
How to save RTP Streams from Wireshark and Play it using an application
called Audacity - See more at: https://supportforums.cisco.com/discussion/11517891/how-save-rtp-streams-wireshark-and-play-it-using-application-called-audacity#sthash.7EYWGCYp.dpuf https://supportforums.cisco.com/discussion/11517891/how-save-rtp-streams-wireshark-and-play-it-using-application-called-audacity