Andrew Kohlsmith wrote:
On November 8, 2004 06:41 pm, Steve Underwood wrote:
I have looked at many similar reports, and all but one turned out to be
due to data slips. However, if you are sure this is only happening with
one particular FAX machine your problem might be different. In t30.c
uncomment the first line. Rebuild spandsp and try FAXing. You should get
audio log files in /tmp. Send them to me, and I will investigate.
Since there are so many problems with timing slips, would it be prudent to put
some kind of log in the spandsp code that it spits out a warning something
along the lines of "Warning: timing slip detected" to help reduce your time
involved in debugging these issues?
I'm pretty sure you already have some kind of code in-house which helps you do
this (when you play back the audio files) -- can you elaborate a little on
how you debug this stuff?
It isn't that easy to detect reliably (other than simply saying failure
== frame slip). Currently I do it my manual analysis of audio logs.
However, I need to do something, as this is becoming a real support hassle.
Steve
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