[asterisk-users] Asterisk choking on voice messages announcements

[bruce bruce]

Here are result of dahdi_test:

[root at ip-10-251-123-3 ~]# dahdi_test
Opened pseudo dahdi interface, measuring accuracy...
99.725% 96.018% 99.532% 91.934% 99.923% 99.923% 99.628% 99.434%
-434.763% 99.239% 93.770% 99.141% 99.822% 91.232% 99.727% 93.770%
99.726% -403.227% 98.069% 98.458% 95.136% 98.749% 91.229% 87.622%
98.554% 93.282% -407.620% 94.650% 96.308% 98.750% 96.993% 93.478%
94.063% 93.381% 61.745% -379.400% 99.628% 99.921% 99.142% 96.797%
98.457% 99.337% 87.909% 95.141% -396.880% 99.531% 99.923% 99.921%
91.035% 96.408% 91.916% 90.255% -402.153% 81.079% 74.534% 96.212%

What can one tell from these?

On Wed, Apr 21, 2010 at 6:59 PM, bruce bruce <bruceb444 at gmail.com> wrote:

> Thanks for the input.
>
> I am going to check this once I get access to system again tonight.
>
> But I thought the timing source dahdi_dummy is only good for features like
> MeetMe or conference rooms? or am I wrong and it has an effect on any type
> of calls and checking voice messages?
>
> Thanks
>
> On Wed, Apr 21, 2010 at 2:49 PM, Ryan Bullock <rrb3942 at gmail.com> wrote:
>
>> So I be it sounds like all the recordings are underwater.
>>
>> Are you using dahdi for timing? Can you run dahdi_test?
>>
>> Asterisk needs a good timing source, in the case when you don't have a
>> physical card providing it, it relies on kernel ticks or the RTC (or HPET).
>> Because of the nature of virtual machines they don't always get access to
>> the processor when they want and therefore their timing can get skewed and
>> can be bad for real-time applications.
>>
>> There are some patches/work-arounds that you can do. You might want to
>> google 'asterisk in a virtual machine' or 'asterisk timing virutal machine',
>> or anything along those lines.
>>
>> I think I remember in some of the recent dahdi or asterisk release notes
>> that they changed some settings to be more virtual machine friendly. So
>> maybe make sure you are running the latest versions?
>>
>> --
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