<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">We have a long history of known issues with Ubuntu 12.04 including known kernel timing issues. I strongly recommend switching.<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 9, 2015, at 3:57 PM, Martyn Davies <<a href="mailto:martyn@magiccow.co.uk" class="">martyn@magiccow.co.uk</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Thanks, yes it's running on Ubuntu 12.04 LTS, on a real machine. Load is light (there were on average 5 calls at the time I was working on it). <div class=""><br class=""></div><div class="">With raw record, the recording looks as expected, i.e. no silent prefix.</div><div class=""><br class=""></div><div class="">I've noticed that when recording WAV, the recording on the call is ok, then subsequent recording (i.e on the same call uuid) have the silent prefix.</div><div class=""><br class=""></div><div class="">Thanks for the recommendations, I will try a later FS version as soon as I can do so without disrupting the trial. It does look like it could be connected with the reported windows problem (although here it isn't windows).</div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Martyn</div><div class=""><br class=""></div><div class=""><br class=""><div class=""><br class=""></div></div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On 9 June 2015 at 16:43, Brian West <span dir="ltr" class=""><<a href="mailto:brian@freeswitch.org" target="_blank" class="">brian@freeswitch.org</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="">You make no mention of what platform you're running on, I would highly recommend you try 1.4.19, I recall a similar bug already being reported resolved.</div><div class="gmail_extra"><br class=""><div class="gmail_quote"><div class=""><div class="h5">On Tue, Jun 9, 2015 at 10:38 AM, Martyn Davies <span dir="ltr" class=""><<a href="mailto:martyn@magiccow.co.uk" target="_blank" class="">martyn@magiccow.co.uk</a>></span> wrote:<br class=""></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class=""><div class="h5"><div dir="ltr" class="">After a problem reported by a customer, I've been experimenting with uuid_record from fs_cli to find out where leading silences might be coming from. A couple of files I just recorded had >30s of silence at the start of the wav file that I wasn't expecting. The experiment goes like this:<div class=""><br class=""></div><div class=""><br class=""></div><div class="">1. I say "one" on the call</div><div class="">2. uuid_record <uuid> start xx.wav</div><div class="">3. I say "two" on the call</div><div class="">4. short pause</div><div class="">5. I say "three" on the call</div><div class="">6. uuid_record <uuid> stop xx.wav</div><div class="">7. I say "four" on the call<br class=""><div class=""><br class=""></div><div class="">The resulting xx.wav file contains 33s of silence, "two", pause, "three" end of file. It is silence at the start rather than ambient noise.</div></div><div class=""><br class=""></div><div class="">The call itself has been up for several minutes now, so I'm not sure where the 30 sec comes from?</div><div class=""><br class=""></div><div class="">The FreeSWITCH version is 1.4.12-1</div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Martyn</div>
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