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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Olivier<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, October 14, 2010
11:11 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [asterisk-users]
Explain "core show translation"</span></font><o:p></o:p></p>
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face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2010/10/14 Danny Nicholas <<a href="mailto:danny@debsinc.com">danny@debsinc.com</a>><o:p></o:p></span></font></p>
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bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> <a
href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>
[mailto:<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Olivier<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, October 14, 2010
10:43 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] Explain
"core show translation"</span></font><o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hi,<br>
<br>
I've read in <a href="http://www.voip-info.org/wiki/view/Asterisk+codecs"
target="_blank">http://www.voip-info.org/wiki/view/Asterisk+codecs</a> but I
still have questions about "core show translation".<br>
<br>
How are values replied by "core show translation" computed in the the
first place ?<br>
I've got 2 machines using a 3GHz Intel CPU : 1 is a Xeon, 1 is a Pentium 4
(gathered with cat /proc/cpuinfo)<br>
<br>
The Xeon machine is showing, for instance:<br>
gsm<br>
ulaw - 1601 <br>
<br>
The other shows:<br>
gsm<br>
ulaw - 2 <br>
<br>
Why are these values so different ?<br>
Is it correct to say "if "core show translation" is showing a 4
digits value in its matrix, then the translation path between corresponding
codecs is unusable.<br>
<br>
Regards<o:p></o:p></span></font></p>
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size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Perhaps the Xeon machine needs some optimization since a
“ulaw-to-gsm” translation take 1.6 seconds for 1 second of data as opposed to
.002 seconds on the P4 machine.</span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
Where this data comes from in the first place ?<br>
Is it computed each time "core show translation" is typed ?<br>
<br>
What does "core show translation recalc 60" add to "core show
translation" ?<br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>Ahh –
questions that make me read. The “core show translation” invokes the
translate.c module. If you do “c s t” it does a “one shot” display of the
current values. If you do “c s t r 60” it recalculates and redisplays the
values every 60 seconds. If your machine is a “variable load” state, you could
get significantly different output. If your machine is running at a “20%”
load, it’s probably not going to vary very much.<o:p></o:p></span></font></p>
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