Glad to hear things improved.  Asterisk and virtualization do make 
troubleshooting a little bit more interesting.



Sent from my BlackBerry device on the Rogers Wireless Network  

-----Original Message-----
From: "Adam Ronthal" <[EMAIL PROTECTED]>
Date: Mon, 5 Mar 2007 16:37:56 
To:[email protected]
Subject: Re: [on-asterisk] recording and playback sound poor quality

I made the following changes:

1) Went from 2 virtual CPUs down to one, and booted the non smp kernel
2) Added the following to my kernel boot parameters:

       noapic clock=pit nolapic nosmp

I had already set the guest to synchronize with the hosts time using
vmware tools.

Things are now much improved with only the occasional static...

-Adam

On 3/5/07, Adam Ronthal <[EMAIL PROTECTED]> wrote:
> The nerd vittles build did not seem to help.  I believe this is
> related to timing issues with vmware and clock virtualization.
>
> References:
>
> http://www.trixbox.org/modules/newbb/viewtopic.php?topic_id=308&forum=2&viewmode=flat&order=ASC&start=40
> http://www.vmwarez.com/2006/09/vmware-friendly-asterisk-based-trixbox.html
>
> I'm going to try a couple of things:
>
> - changing clock settings in the kernel
> - disabling SMP
> - Other things as listed in the VMWare Timekeeping whitepaper
> (http://www.vmware.com/vmtn/resources/238)
>
>
> Will post results here when I get a chance.
>
> -Adam
>
> On 3/3/07, Adam Ronthal <[EMAIL PROTECTED]> wrote:
> > This post seems to address the issue... I'll try the nerdvittles build
> > later this weekend and post the results here.
> >
> > http://www.vmwarez.com/2006/09/vmware-friendly-asterisk-based-trixbox.html
> >
> > -Adam
> >
> > On 3/3/07, Adam Ronthal <[EMAIL PROTECTED]> wrote:
> > > Interesting... trixbox is running under vmware esx 3 with 2 virtual
> > > CPUs and 256MB ram allocated.
> > >
> > > I'm quite willing to play with the kernel to try and address this...
> > > any good pointers as to what might be the specific issue?
> > >
> > > The esx kernel is  2.4.21-37.0.2.ELvmnix
> > >
> > > The CentOS kernel is 2.6.9-34.0.2.ELsmp
> > >
> > > -Adam
> > >
> > > On 3/3/07, Sacha Panasuik <[EMAIL PROTECTED]> wrote:
> > > > The usual things to look at:
> > > > 1) Type of cpu and cpu specific settings in the bios
> > > > 2) Ensure no irq conflicts
> > > > 3) Some motherboard chipsets are not especially asterisk friendly
> > > >
> > > >
> > > > Also, there have been reports of problems like this running with some 
> > > > combinations of vmware and trixbox (mostly to do with the kernel being 
> > > > run).
> > > >
> > > > It can sometimes be a little tricky to find an effective combination of 
> > > > hardware and kernel version and ??? Version that all get along.  But a 
> > > > basic asterisk system as you have described does not need crazy new 
> > > > hardware - I ran very well on a celeron 350 Mhz with a similar setup.
> > > >
> > > >
> > > > Sent from my BlackBerry device on the Rogers Wireless Network
> > > >
> > > > -----Original Message-----
> > > > From: "Adam Ronthal" <[EMAIL PROTECTED]>
> > > > Date: Fri, 2 Mar 2007 18:21:02
> > > > To:[email protected]
> > > > Subject: [on-asterisk] recording and playback sound poor quality
> > > >
> > > > Hi folks -
> > > >
> > > > I'm fairly new to Asterisk/Trixbox, but learning more daily... my
> > > > setup is as follows:
> > > >
> > > > Trixbox 2
> > > >   - FreePBX Administration 2.2.0rc3
> > > >   - Asterisk 1.2.13 svn rev 47264
> > > >
> > > > One active trunk configured with les.net for DID and 
> > > > termination/origination
> > > > One grandstream budgetone 200 SIP phone
> > > >
> > > > My inbound and outbound calls are all good and working perfectly...
> > > > however, when accessing the Asterisk internal recording (e.g.
> > > > voicemail, IVR, etc...) the sound quality on the line is poor with
> > > > lots of crackly and static.  I'm running with fairly close to default
> > > > settings, and have not played with different codecs yet.
> > > >
> > > > The host system appears to have adequate resources -- no swapping, no
> > > > heavy load on the CPU -- and the LAN is 100-Base-T throughout.
> > > >
> > > > Any ideas? Looking for some basic guidance....
> > > >
> > > > Thanks,
> > > >
> > > > -Adam
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > > For additional commands, e-mail: [EMAIL PROTECTED]
> > > >
> > > >
> > >
> >
>

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