[Freeswitch-users] Gaps In RTP (wideband) Packets From mod_voicemail

[Anthony Minessale]

I found a restriction in the core limiting that functionality to
sleeps > 100ms, the vm sleeps 100ms between files by default.
update to latest and try again.


On Thu, May 10, 2012 at 11:26 AM, Jerry Richards
<jerry.richards at teotech.com> wrote:
> I'm setting send_silence_when_idle globally to a numerical value that fixes a loud white noise issue during sleeps.  I originally had it set to true but still had the wideband clipping issue.
>
> Jerry
>
> -----Original Message-----
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Anthony Minessale
> Sent: Thursday, May 10, 2012 8:40 AM
> To: FreeSWITCH Users Help
> Subject: Re: [Freeswitch-users] Gaps In RTP (wideband) Packets From mod_voicemail
>
> set send_silence_when_idle=true globally or per-leg
>
> On Thu, May 10, 2012 at 10:35 AM, Jerry Richards <jerry.richards at teotech.com> wrote:
>> By the way, in contrast, I created an XML block that plays the same
>> messages as mod_voicemail (see block below).  When this XML block is
>> executed, there is no clipping of words when using wideband codec
>> BV32.  This is why I'm thinking it's related to delays caused by mod_voicemail processing.
>>
>>
>>
>>     <extension name="test_message">
>>
>>       <condition field="destination_number" expression="^\*105$">
>>
>>         <action application="answer"/>
>>
>>        <action application="sleep" data="1000"/>
>>
>>               <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-hello.wav"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-you_have.wav"/>
>>
>>               <action application="say" data="en number pronounced
>> 1"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-new.wav"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-messages.wav"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-you_have.wav"/>
>>
>>               <action application="say" data="en number pronounced
>> 2"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-saved.wav"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-messages.wav"/>
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-listen_new.wav"/
>> >
>>
>>         <action application="playback"
>> data="/opt/teoswitch/sounds/en/us/callie/voicemail/vm-press.wav"/>
>>
>>               <action application="say" data="en number pronounced
>> 1"/>
>>
>>         <action application="sleep" data="100"/>
>>
>>       </condition>
>>
>>     </extension>
>>
>>
>>
>> Thanks,
>>
>> Jerry
>>
>>
>>
>> From: freeswitch-users-bounces at lists.freeswitch.org
>> [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of
>> Jerry Richards
>> Sent: Thursday, May 10, 2012 8:23 AM
>> To: FreeSWITCH Users Help
>> Subject: [Freeswitch-users] Gaps In RTP (wideband) Packets From
>> mod_voicemail
>>
>>
>>
>> Hello,
>>
>>
>>
>> I'm seeing a audio problem when listening to the operator when calling
>> into voicemail to listen to messages and a wideband codec is used.
>> Looking at a wireshark trace, I see gaps between transmitted RTP
>> packets that exceed the jitter buffer depth in the endpoint softphone,
>> causing underflow.   This causes clipping of the front-end of words
>> such as "Pressed" sounds like 'ess' and "Last name" sounds like 'ast
>> name'.  While this is generally not noticeable with the G.711 codec,
>> it causes these clipped audio phrases with wideband codecs, such as
>> BV32.  It might be due to the processing delay in mod_voicemail between phrases?
>>
>>
>>
>> Has anyone seen this?  Is there a tag to help improve this?
>>
>>
>>
>> Thanks,
>>
>> Jerry
>>
>>
>>
>>
>> ______________________________________________________________________
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>>
>> 
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>
>
>
> --
> Anthony Minessale II
>
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>
>  
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>
> _________________________________________________________________________
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>
> 
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-- 
Anthony Minessale II

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