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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for this. One of the servers is
using sata and the other scsii drives, so that may be the problem, I’ll
give it a go. Problem seems to escalate past 200 active calls.
Below that all is well.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>That said, it could also be a db issue, so
I’ve changed my log tables to innodb (I’m hoping that now I have
row level locking as opposed to table level it will help)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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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'>
freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Anthony Minessale<br>
<b><span style='font-weight:bold'>Sent:</span></b> 16 April 2009 23:25<br>
<b><span style='font-weight:bold'>To:</span></b>
freeswitch-users@lists.freeswitch.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Freeswitch-users]
Optimum sound file format</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Looking at your post, You
are already using the best format.<br>
If you do not have a fast filesystem try making a ram disk and play the files
from there instead.<br>
<br>
if you *really* want you can use sox to turn them all into raw alaw files and
rename them with a .PCMA extension<br>
to avoid the g711 transconding but g711 to PCM is pretty trivial. it's more
likely a file i/o distress you see.<br>
<br>
<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'>On Thu, Apr 16, 2009 at 5:04 PM, Nik Middleton <<a
href="mailto:nik.middleton@noblesolutions.co.uk">nik.middleton@noblesolutions.co.uk</a>>
wrote:<o:p></o:p></span></font></p>
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<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hi
Guys,</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I’m
looking for the optimum audio format when using streamfile in a lua script.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I’ve
found CPU load increases rapidly with the number of threads playing a .wav
file. Can anyone tell me the optimum when using g711a?</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Right
now the the .wav files are </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Audio
format: PCM</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Sample
rate : 8 kHz</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Mono</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Sample
Size: 16 bit</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Bit
rate :128kbps</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Will
it help CPU load if I resample to a bit rate of 64kbps and sample size of 8
bit?</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
have read that the sample size needs to be 13-14bit +1 for alaw/ulaw
though</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Regards,</span></font><o:p></o:p></p>
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<br>
-- <br>
Anthony Minessale II<br>
<br>
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