Re: [Asterisk-Users] MEETME core uses ulaw?

2005-05-19 Thread Kevin P. Fleming
Dan Morin wrote:
Thank you both for your responses.  From looking at the app_conference
page in the wiki, it seems as though it is best used for one or two
speakers and everyone else just listening.  Unfortunately, my company
likes to have conferences with 15 or so people and everyone can talk.
There is no way to bridge (mix) compressed audio streams together. They 
must be decompressed into some simple audio format, mixed, and then 
recompressed.

app_conference can do a little better when all the callers are using the 
same codec and only one is speaking, because then it does not need to 
mix the audio together. Anytime mixing is required, though, the audio is 
going to be transcoded.
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RE: [Asterisk-Users] MEETME core uses ulaw?

2005-05-04 Thread mattf
Look at the app_conference description on the wiki:
http://www.voip-info.org/tiki-index.php?page=Asterisk%20app_conference

I believe it does what you want to do, but I really don't know if it works
with CVS_HEAD or stable releases. I'd be curious to hear how it affects
performance as well.

MATT---

-Original Message-
From: Dan Morin [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 04, 2005 1:03 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] MEETME core uses ulaw?


So no one has any ideas about how to get MeetMe to work with a codec other
than ulaw?
 
Is anyone successfully doing it?
 



From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan Morin
Sent: Tuesday, May 03, 2005 10:26 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] MOH Core uses ulaw...
 
I'm trying to get Asterisk setup as a conference bridge.  When I originally
tried MeetMe, I was using GSM and as the conference got longer, the delay
got worse and worse.  From my research, I assumed that it was because MeetMe
uses ulaw at its core, so everything is getting transcoded twice and each
instant adds more and more delay to the cycle.  To test this, I changed all
of my connections to ulaw and now I get very minimal delay.
 
However, this is not acceptable for me.  I'm anticipating most of my meeting
attendees to come in over my VoIP connection and if this voip line is using
ulaw, it will significantly reduce the number of simultaneous users that my
internet connection can handle.
 
So, it seems to me that I need to change the core codec of MeetMe to
something like GSM so that I can get OK call quality, while getting the most
out of my Internet connection.  Does anyone know how to do this?  Am I on
the right track or way off with this one?
 
Is anyone using MeetMe with GSM or any other non ulaw codec and not having a
problem? 
 
Also (sorry so many questions) I'm not thrilled with GSM or iLBC.  I know
there are a lot of people who like G.729...what are the costs involved with
using this one?
 
Thanks in advance.
Dan
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Re: [Asterisk-Users] MEETME core uses ulaw?

2005-05-04 Thread BJ Weschke
 I was going to recommend the same to him last night, but then I
started digging into the code there and realized they were transcoding
back to LINEAR at their core as well. Now they're not passing that
back through a ZapTel psuedo channel like app_meetme does, but I'd be
interested to see if that fixes the delay issue discussed.


On 5/4/05, mattf [EMAIL PROTECTED] wrote:
 Look at the app_conference description on the wiki:
 http://www.voip-info.org/tiki-index.php?page=Asterisk%20app_conference
 
 I believe it does what you want to do, but I really don't know if it works
 with CVS_HEAD or stable releases. I'd be curious to hear how it affects
 performance as well.
 
 MATT---
 
 -Original Message-
 From: Dan Morin [mailto:[EMAIL PROTECTED]
 Sent: Wednesday, May 04, 2005 1:03 PM
 To: Asterisk Users Mailing List - Non-Commercial Discussion
 Subject: [Asterisk-Users] MEETME core uses ulaw?
 
 So no one has any ideas about how to get MeetMe to work with a codec other
 than ulaw?
 
 Is anyone successfully doing it?
 
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Dan Morin
 Sent: Tuesday, May 03, 2005 10:26 PM
 To: Asterisk Users Mailing List - Non-Commercial Discussion
 Subject: [Asterisk-Users] MOH Core uses ulaw...
 
 I'm trying to get Asterisk setup as a conference bridge.  When I originally
 tried MeetMe, I was using GSM and as the conference got longer, the delay
 got worse and worse.  From my research, I assumed that it was because MeetMe
 uses ulaw at its core, so everything is getting transcoded twice and each
 instant adds more and more delay to the cycle.  To test this, I changed all
 of my connections to ulaw and now I get very minimal delay.
 
 However, this is not acceptable for me.  I'm anticipating most of my meeting
 attendees to come in over my VoIP connection and if this voip line is using
 ulaw, it will significantly reduce the number of simultaneous users that my
 internet connection can handle.
 
 So, it seems to me that I need to change the core codec of MeetMe to
 something like GSM so that I can get OK call quality, while getting the most
 out of my Internet connection.  Does anyone know how to do this?  Am I on
 the right track or way off with this one?
 
 Is anyone using MeetMe with GSM or any other non ulaw codec and not having a
 problem?
 
 Also (sorry so many questions) I'm not thrilled with GSM or iLBC.  I know
 there are a lot of people who like G.729...what are the costs involved with
 using this one?
 
 Thanks in advance.
 Dan
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RE: [Asterisk-Users] MEETME core uses ulaw?

2005-05-04 Thread Dan Morin
Thank you both for your responses.  From looking at the app_conference
page in the wiki, it seems as though it is best used for one or two
speakers and everyone else just listening.  Unfortunately, my company
likes to have conferences with 15 or so people and everyone can talk.

Am I just reading into the example too much?  Will it allow many
speakers?

Does anyone have experience with app_conference that would be able to
comment on its effectiveness?


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of BJ Weschke
Sent: Wednesday, May 04, 2005 4:36 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] MEETME core uses ulaw?

 I was going to recommend the same to him last night, but then I
started digging into the code there and realized they were transcoding
back to LINEAR at their core as well. Now they're not passing that
back through a ZapTel psuedo channel like app_meetme does, but I'd be
interested to see if that fixes the delay issue discussed.


On 5/4/05, mattf [EMAIL PROTECTED] wrote:
 Look at the app_conference description on the wiki:
 http://www.voip-info.org/tiki-index.php?page=Asterisk%20app_conference
 
 I believe it does what you want to do, but I really don't know if it
works
 with CVS_HEAD or stable releases. I'd be curious to hear how it
affects
 performance as well.
 
 MATT---
 
 -Original Message-
 From: Dan Morin [mailto:[EMAIL PROTECTED]
 Sent: Wednesday, May 04, 2005 1:03 PM
 To: Asterisk Users Mailing List - Non-Commercial Discussion
 Subject: [Asterisk-Users] MEETME core uses ulaw?
 
 So no one has any ideas about how to get MeetMe to work with a codec
other
 than ulaw?
 
 Is anyone successfully doing it?
 
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Dan
Morin
 Sent: Tuesday, May 03, 2005 10:26 PM
 To: Asterisk Users Mailing List - Non-Commercial Discussion
 Subject: [Asterisk-Users] MOH Core uses ulaw...
 
 I'm trying to get Asterisk setup as a conference bridge.  When I
originally
 tried MeetMe, I was using GSM and as the conference got longer, the
delay
 got worse and worse.  From my research, I assumed that it was because
MeetMe
 uses ulaw at its core, so everything is getting transcoded twice and
each
 instant adds more and more delay to the cycle.  To test this, I
changed all
 of my connections to ulaw and now I get very minimal delay.
 
 However, this is not acceptable for me.  I'm anticipating most of my
meeting
 attendees to come in over my VoIP connection and if this voip line is
using
 ulaw, it will significantly reduce the number of simultaneous users
that my
 internet connection can handle.
 
 So, it seems to me that I need to change the core codec of MeetMe to
 something like GSM so that I can get OK call quality, while getting
the most
 out of my Internet connection.  Does anyone know how to do this?  Am I
on
 the right track or way off with this one?
 
 Is anyone using MeetMe with GSM or any other non ulaw codec and not
having a
 problem?
 
 Also (sorry so many questions) I'm not thrilled with GSM or iLBC.  I
know
 there are a lot of people who like G.729...what are the costs involved
with
 using this one?
 
 Thanks in advance.
 Dan
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RE: [Asterisk-Users] MEETME core uses ulaw...

2005-05-03 Thread Dan Morin








Yeah, so Im an idiotsubject
should have been MeetMe not MOH.











From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan Morin
Sent: Tuesday, May 03, 2005 10:26
PM
To: Asterisk Users Mailing List -
Non-Commercial Discussion
Subject: [Asterisk-Users] MOH Core
uses ulaw...





Im trying to get Asterisk setup as a conference
bridge. When I originally tried MeetMe, I was using GSM and as the
conference got longer, the delay got worse and worse. From my research, I
assumed that it was because MeetMe uses ulaw at its core, so everything is
getting transcoded twice and each instant adds more and more delay to the
cycle. To test this, I changed all of my connections to ulaw and now I
get very minimal delay.



However, this is not acceptable for me. Im
anticipating most of my meeting attendees to come in over my VoIP connection
and if this voip line is using ulaw, it will significantly reduce the number of
simultaneous users that my internet connection can handle.



So, it seems to me that I need to change the core codec of
MeetMe to something like GSM so that I can get OK call quality, while getting
the most out of my Internet connection. Does anyone know how to do
this? Am I on the right track or way off with this one?



Is anyone using MeetMe with GSM or any other non ulaw codec
and not having a problem? 



Also (sorry so many questions) Im not thrilled with
GSM or iLBC. I know there are a lot of people who like G.729what
are the costs involved with using this one?



Thanks in advance.
Dan






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