I use Wireshark to capture a call between two clients using telephony software. The codec used is G711 PCMU and comfort noise (PT=CN), as you can see in picture 1 there are 7 streams altogether, as you can see in picture 2. I want to save the payload as .au file, however, I can only save the first 5 streams (which only contain some ringing sound or background noise) as .au files, the last 2 (which contain the speech content) can't be saved as .au file (but they can be saved as .raw format). The error message is “Can't save in a file: saving in au format supported only for alaw/ulaw streams” However, I can play them using Telephony->VoIP Calls->Player What is wrong with this? Thank you!
This question is marked "community wiki". asked 17 Nov '10, 09:36  esolve edited 18 Nov '10, 03:44 |
2 Answers:
As the error says: "saving in au format supported only for alaw/ulaw streams". If there's PT_CN packets in the stream it cannot properly save these in au format, because there's no conversion for this payload type provided. answered 18 Nov '10, 06:59  Jaap ♦ But I can play them using the functionality within Wireshark. And previously, I have also captured some packets where there seems to be CN payload and I CAN also save them as .au file. (19 Nov '10, 05:34) esolve |
However, I can play them using Telephony->VoIP Calls->Player SO I think wireshark can convert them? answered 21 Nov '10, 16:58 esolve |
These pictures can't be viewed; "You don't have permission to access the requested object."
No answer yet, but maybe people can interpret the pics:
Links to the pics for those who don't like page source ;)
http://img3.laibafile.cn/getimgXXX/2/4/photo2/2010/11/18/middle/65401101_3131263_middle.jpg http://img3.laibafile.cn/getimgXXX/2/1/photo2/2010/11/18/middle/65401102_3131263_middle.jpg
If you get an error message stating Access Denied, click the Link inside the error statement to the file again. Worked fine for me using IE8