[Freeswitch-users] Recent VAD enhancement?
Faraz R. Khan
faraz.khan at emergen.biz
Wed Jun 25 00:34:27 PDT 2008
To add to this we have noticed the same with some Dlink Phones
(DPH-120s). The audio 'cuts out' intermittently with CNG enabled on the
server side, very noticeable in conferences (though they are still
usable). The phone will refuse to send any RTP (no network activity for
0.5seconds). This does not happen with Grandstream, Quintum, Cisco,
Polycom, Linksys phones.
The phone does not do this with asterisk since there is no CNG support
in asterisk.
I dont think your problem is related but just trying to add to the wisdom :)
UV wrote:
> Correct. The conference is unusable. When 2 people in the conference
> they can not hear each other or can hear each other intermittently.
>
>
>
> I’ve played with the energy level and flags settings but without any luck.
>
>
>
> The pcap I’ve done is on the client. When doing pcap on the FS box I get
> the same exact result (corresponding to the client side) however I get
> completely different result from my other client (an IP phone on which I
> can not run pcap). The IP phone doesn’t seem to send any RTP when in
> conference and does send when not in conference.
>
>
>
> I’m still trying to figure out the difference between the two FS builds
> (FC4 and v1) but I have a question:
>
> Did you introduce the CN (comfort noise) feature after RC4 or was it
> there before?
>
>
>
> I’m quite lost with this now and it leaves us with RC4 the only viable
> production candidate for now. Any assistance will be appreciated.
>
> We’re now building another FS box on a different machine and we’ll try
> to reproduce it there.
>
>
>
> ------------------------------------------------------------------------
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org
> [mailto:freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of
> *Anthony Minessale
> *Sent:* Wednesday, June 25, 2008 8:31 AM
> *To:* freeswitch-users at lists.freeswitch.org
> *Subject:* Re: [Freeswitch-users] Recent VAD enhancement?
>
>
>
> so the conference is never working you are saying?
> When 2 people are in the conference can they hear each other?
>
> are you doing pcap on the FS box or on the client side?
> There is energy detection in the conference that you could try turning
> down in the conference profile.
>
> <param name="energy-level" value="0"/>
>
> try this setting to make the conference send audio at all times
>
> <param name="member-flags" value="waste"/>
>
>
>
> On Tue, Jun 24, 2008 at 1:38 PM, UV <uv at talknet.com.au
> <mailto:uv at talknet.com.au>> wrote:
>
> 9999 is pretty much the same. I can't tell if 90% or 70% of the traffic
> is lost but something definitely makes the FS stops sending traffic and
> start again (as if it was VAD).
>
> The client sends RTP as usual. No change there. The loss is only from
> the FS server side.
>
> Problem persists when adding callers to the conference. Callers sending
> RTP to the server but not receiving much back.
>
> I've double checked and there's no problem when dialing from one
> extension to another. RTP stream is fluent.
>
> It's on one box we tried. Only tested on windows. That's why I'm asking
> if anyone had that too.
>
>
>
> Again, this phenomenon is predominately noticeable for MoH. It doesn't
> seem to occur when playing a file, generating a tone or streaming mp3.
>
> There's a different "disturbance" when playing WAV files but I'm not
> sure it's related (also doesn't happen on the RC4). The audio seem to
> skip forward from time to time – like short bursts of fast-forward
> effect occasionally.
>
> Playing MP3 sounds good.
>
>
>
>
>
> ------------------------------------------------------------------------
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org
> <mailto:freeswitch-users-bounces at lists.freeswitch.org>
> [mailto:freeswitch-users-bounces at lists.freeswitch.org
> <mailto:freeswitch-users-bounces at lists.freeswitch.org>] *On Behalf Of
> *Anthony Minessale
> *Sent:* Wednesday, June 25, 2008 2:39 AM
>
>
> *To:* freeswitch-users at lists.freeswitch.org
> <mailto:freeswitch-users at lists.freeswitch.org>
> *Subject:* Re: [Freeswitch-users] Recent VAD enhancement?
>
>
>
> so are you also saying that the client is not sending RTP either?
> did you try adding subsequent callers to the conference?
> is this on more than one box?
> is this only on windows?
>
> On Tue, Jun 24, 2008 at 11:37 AM, Anthony Minessale
> <anthony.minessale at gmail.com <mailto:anthony.minessale at gmail.com>> wrote:
>
> what happens when you call 9999?
>
> 2008/6/23 UV <uv at talknet.com.au <mailto:uv at talknet.com.au>>:
>
>
>
> I've checked the packet flow in wireshark and it seems like the FS
> is sending RTP for about 2 seconds (the "alone announcement") and
> then stops sending RTP. From time to time few packets arrive and you
> can hear the MoH momentarily.
>
> The call scenario was a softphone (SJPhone) calling 3011 conference
> room. Both are on the same LAN speaking directly.
>
> There were no error messages.
>
>
>
> Same scenario on RC4 works fine.
>
>
>
> No Asterisk involved, installed or present in the surrounding area.
>
>
>
> Any ideas?
>
>
>
> ------------------------------------------------------------------------
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org
> <mailto:freeswitch-users-bounces at lists.freeswitch.org>
> [mailto:freeswitch-users-bounces at lists.freeswitch.org
> <mailto:freeswitch-users-bounces at lists.freeswitch.org>] *On Behalf
> Of *Anthony Minessale
> *Sent:* Tuesday, June 24, 2008 7:14 AM
> *To:* freeswitch-users at lists.freeswitch.org
> <mailto:freeswitch-users at lists.freeswitch.org>
> *Subject:* Re: [Freeswitch-users] Recent VAD enhancement?
>
>
>
> check the packet flow in wireshark also
>
> On Mon, Jun 23, 2008 at 2:06 PM, Brian West <brian at freeswitch.org
> <mailto:brian at freeswitch.org>> wrote:
>
> By any chance is Asterisk involved in this at any point along the
> call path?
>
>
>
> /b
>
>
>
> On Jun 23, 2008, at 1:55 PM, UV wrote:
>
>
>
>> I'm trying to send this and it doesn't seem to post… here's
>> another attempt:
>>
>>
>>
>> After upgrading from latest stable version for windows (RC4) to
>> latest version, I've noticed a significant loss of audio during a
>> call.
>>
>> It almost seems like there's an enhanced VAD that triggers the
>> audio on and off – although the VAD feature is off. Why VAD?
>> Because as you inject audio on the receiving side, you can then
>> hear incoming audio from the transmitting side.
>>
>>
>>
>> Although this is not noticeable when using tone generation or
>> shout, it's mostly evident when playing MoH (Music on hold, not
>> Medal of Honor). It sounds like about 90% of the audio is gone.
>>
>>
>>
>> We used identical configuration files for both tests.
>>
>>
>>
>> We're still investigating this behavior and soon we'll dive to
>> network level and debug outputs.
>>
>>
>>
>> Anyone else encountered that as well?
>>
>>
>>
>> No virus found in this outgoing message.
>> Checked by AVG.
>> Version: 8.0.100 / Virus Database: 270.4.1/1513 - Release Date:
>> 22/06/2008 07:52
>>
>> _______________________________________________
>> Freeswitch-users mailing list
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>>
>
>
>
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>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> <mailto:MSN%3Aanthony_minessale at hotmail.com>
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
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>
> FreeSWITCH Developer Conference
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> <mailto:sip%3A888 at conference.freeswitch.org>
> iax:guest at conference.freeswitch.org/888
> <http://iax:guest@conference.freeswitch.org/888>
> googletalk:conf+888 at conference.freeswitch.org
> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
> pstn:213-799-1400
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.100 / Virus Database: 270.4.1/1515 - Release Date:
> 23/06/2008 19:16
>
>
> _______________________________________________
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>
>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> <mailto:MSN%3Aanthony_minessale at hotmail.com>
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
> IRC: irc.freenode.net <http://irc.freenode.net> #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> <mailto:sip%3A888 at conference.freeswitch.org>
> iax:guest at conference.freeswitch.org/888
> <http://iax:guest@conference.freeswitch.org/888>
> googletalk:conf+888 at conference.freeswitch.org
> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
> pstn:213-799-1400
>
>
>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> <mailto:MSN%3Aanthony_minessale at hotmail.com>
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
> IRC: irc.freenode.net <http://irc.freenode.net> #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> <mailto:sip%3A888 at conference.freeswitch.org>
> iax:guest at conference.freeswitch.org/888
> <http://iax:guest@conference.freeswitch.org/888>
> googletalk:conf+888 at conference.freeswitch.org
> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
> pstn:213-799-1400
>
> No virus found in this incoming message.
> Checked by AVG.
>
> Version: 8.0.100 / Virus Database: 270.4.1/1516 - Release Date:
> 24/06/2008 07:53
>
>
> _______________________________________________
> Freeswitch-users mailing list
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>
>
>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> <mailto:MSN%3Aanthony_minessale at hotmail.com>
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
> IRC: irc.freenode.net <http://irc.freenode.net> #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> <mailto:sip%3A888 at conference.freeswitch.org>
> iax:guest at conference.freeswitch.org/888
> <http://iax:guest@conference.freeswitch.org/888>
> googletalk:conf+888 at conference.freeswitch.org
> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
> pstn:213-799-1400
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.100 / Virus Database: 270.4.1/1516 - Release Date:
> 24/06/2008 07:53
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
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--
Faraz R Khan
Chief Architect
Emergen Consulting Pvt Ltd
+92.21.529.0381 x200
www.emergen.biz
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