[jitsi-users] Very poor sound and video between jit.si accounts


#1

Greetings. I have been very pleased with Jitsi for SIP accounts

I am trying to communicate between two jit.si accounts using the new Jitsi 2. Chat works fine. But voice connection is very
poor and video and screen sharing may work one one computer or the other, but poorly or not at all.

I have set up the jit.si accounts using XMPP (jabber). I have unchecked all
the options on the ICE tab. I am using only the PCMU/8000 audio codecs and H264 for video.

I am using Jitsi on Ubuntu 12.10. I have been trying this on an internal network (i.e. two computers on same router).

I suppose I am doing something wrong. Can you help?

Thank you

Paul


#2

Hey Paul,

Greetings. I have been very pleased with Jitsi for SIP accounts

Glad to hear this!

I am trying to communicate between two jit.si accounts using the new Jitsi 2. Chat works fine. But voice connection is very
poor and video and screen sharing may work one one computer or the other, but poorly or not at all.

There can be many reasons for this, starting from network bandwidth,
available CPU and memory resources, or a number of other things. The
more you provide details, the easier it would be to understand exactly
where the problem is.

You can for example try to lower the video resolution, which would make
for less intensive use of CPU, and see if this improves things.

I have set up the jit.si accounts using XMPP (jabber). I have unchecked all
the options on the ICE tab.

Why is that? Not using ICE will definitely cause problems in all
scenarios where direct IP to IP reachability is not possible between the
participating clients.

I am using only the PCMU/8000 audio codecs

If audio quality is important to you then I'd suggest you enable SILK
and Opus.

and H264 for video.

I am using Jitsi on Ubuntu 12.10. I have been trying this on an internal network (i.e. two computers on same router).

OK, so disabling ICE is probably not the issue in this case ... although
it's hard to be sure.

Cheers,
Emil

···

On 10.03.13, 07:57, Carola y Pablo wrote:

I suppose I am doing something wrong. Can you help?

Thank you

Paul

--
https://jitsi.org


#3

Paul,

It would help greatly if you let the list know:
-System specs (CPU, RAM, video, ie dual-core AMD or Intel xx Mhz, 2GB
RAM, ATI radeon xyz)
-Screen resolution and color depth (ie 1024x768 32-bit color)
-What video driver you´re using (propietary or foss)

FC
PS: this goes for Emil: Ubuntu ships with many different OpenJDK
packages with different JVMs which offer different performance (Cacao,
JamVM, etc, only the version with HotSpot provides a JIT), I wonder if
this is somewhat interfering with the private JRE shipped with Jitsi?.
(I´m assuming 2.0 provides the same packaged private jre as Jitsi 1.x
does)

···

On Sun, Mar 10, 2013 at 8:57 AM, Carola y Pablo <stuckybyler2@yahoo.es> wrote:

I am using Jitsi on Ubuntu 12.10. I have been trying this on an internal network (i.e. two computers on same router).
I suppose I am doing something wrong. Can you help?
Thank you
Paul

--
During times of Universal Deceit, telling the truth becomes a revolutionary act
- George Orwell


#4

Emil, thank you for your reply.

I enabled ICE and all the other options on that page. I enabled
OPUS/4800 and SILK/8000 in that order. (There are many OPUS and SILK
options and I didn't know which to choose.) NOthing improved except
that the video didn't work at all. Then I disabled ICE and it
recognized video put only displayed it on one of the two. As for the
video setting, it is on Auto, so I didn't change it. What should it be?

Also it is encrypting ZRTP. It seems to me that also affects the
quality. Could it be?

I suppose you already know what are the proper configurations/settings
for jit.si. Would it be possible to tell me what they are and I will set
up accordingly. And if it still doesn't work I will assume it is
hardware problem.

Thank you

Paul

···

El dom, 10-03-2013 a las 11:18 -0400, Emil Ivov escribió:

Hey Paul,

On 10.03.13, 07:57, Carola y Pablo wrote:
> Greetings. I have been very pleased with Jitsi for SIP accounts

Glad to hear this!

> I am trying to communicate between two jit.si accounts using the new Jitsi 2. Chat works fine. But voice connection is very
> poor and video and screen sharing may work one one computer or the other, but poorly or not at all.

There can be many reasons for this, starting from network bandwidth,
available CPU and memory resources, or a number of other things. The
more you provide details, the easier it would be to understand exactly
where the problem is.

You can for example try to lower the video resolution, which would make
for less intensive use of CPU, and see if this improves things.

> I have set up the jit.si accounts using XMPP (jabber). I have unchecked all
> the options on the ICE tab.

Why is that? Not using ICE will definitely cause problems in all
scenarios where direct IP to IP reachability is not possible between the
participating clients.

> I am using only the PCMU/8000 audio codecs

If audio quality is important to you then I'd suggest you enable SILK
and Opus.

> and H264 for video.
>
> I am using Jitsi on Ubuntu 12.10. I have been trying this on an internal network (i.e. two computers on same router).

OK, so disabling ICE is probably not the issue in this case ... although
it's hard to be sure.

Cheers,
Emil

> I suppose I am doing something wrong. Can you help?
>
> Thank you
>
> Paul
>
>
>


#5

Thank you for following up on this, Fernando.

My original letter described communication between two computers. The
one is dual boot but I use Ubuntu 12.10. It is a Toshiba Satellite
running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7 GiB RAM,
64-bit, with Mobile Intel® GM45 Express Chipset Graphics with 1280 x 800
resolution. The video driver is i915 Mobile 4 Series Chipset
Integrated Graphics Controller (Intel)

The other is a Toshiba running Windows 7 starter with an Intel Atom(TM)
CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I couldn't get the version
of the video driver but it uses an Intel Graphics Media Accelerator
3150, with 1024 x 600 resolution and 32-bit color.

I might remind that I am communicating on an internal network with both
computers on the same router. Right now, when I connect via jit.si, I
can't bring up the video and the sound is wither unintelligible or
nonexistent. I have compared by communicating with Skype. ON Skype The
video is fair but not good and the sound is also poor. Skype works well
on both when communicating to other computers via internet. So an
internal bandwidth or whatever problem may be affecting the jit.si
performance. But given that, if I can know what is the standard
configuration for jit.si, e.g, ICE settings, codecs, encryption, etc.,
that would be a helpful start.

Thank you

Paul

···

El dom, 10-03-2013 a las 20:43 -0300, Fernando Cassia escribió:

On Sun, Mar 10, 2013 at 8:57 AM, Carola y Pablo <stuckybyler2@yahoo.es> wrote:

> I am using Jitsi on Ubuntu 12.10. I have been trying this on an internal network (i.e. two computers on same router).
> I suppose I am doing something wrong. Can you help?
> Thank you
> Paul

Paul,

It would help greatly if you let the list know:
-System specs (CPU, RAM, video, ie dual-core AMD or Intel xx Mhz, 2GB
RAM, ATI radeon xyz)
-Screen resolution and color depth (ie 1024x768 32-bit color)
-What video driver you´re using (propietary or foss)

FC
PS: this goes for Emil: Ubuntu ships with many different OpenJDK
packages with different JVMs which offer different performance (Cacao,
JamVM, etc, only the version with HotSpot provides a JIT), I wonder if
this is somewhat interfering with the private JRE shipped with Jitsi?.
(I´m assuming 2.0 provides the same packaged private jre as Jitsi 1.x
does)


#6

It is a Toshiba Satellite
running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7 GiB RAM,
64-bit, with Mobile Intel® GM45 Express Chipset Graphics with 1280 x 800
resolution. The video driver is i915 Mobile 4 Series Chipset
Integrated Graphics Controller (Intel)

this cpu should be powerful enough, although Intel integrated graphics
is known to suck with regards to Linux drivers and speed (compared to
nVidia or ATI Radeon).

The other is a Toshiba running Windows 7 starter with an Intel Atom(TM)
CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I

The N450 is a single core cpu... in my experience win7 is barely
usable on this config (I have a single n450 atom netbook and had to
disable all win7 bells and whistles to return it to the winxp look and
feel), at least for using multithreaded apps or heavy multitasking....
but at least graphics device drivers shouldn´t be an issue (Intel
video drivers for win7 offers adequate acceleration, linux is a
different story).

As I´ve never tried Jitsi (not even 1.x) on that limited system, I´ll
let the developers offer some more clues and ideas about what might be
going on.

FC

···

On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo <stuckybyler2@yahoo.es> wrote:


#7

You are right Fernando! We probably won't have enough resources on such a
configuration.

--sent from my mobile

···

On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:

On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo <stuckybyler2@yahoo.es> > wrote:
> It is a Toshiba Satellite
> running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7 GiB RAM,
> 64-bit, with Mobile Intel® GM45 Express Chipset Graphics with 1280 x 800
> resolution. The video driver is i915 Mobile 4 Series Chipset
> Integrated Graphics Controller (Intel)

this cpu should be powerful enough, although Intel integrated graphics
is known to suck with regards to Linux drivers and speed (compared to
nVidia or ATI Radeon).

> The other is a Toshiba running Windows 7 starter with an Intel Atom(TM)
> CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I

The N450 is a single core cpu... in my experience win7 is barely
usable on this config (I have a single n450 atom netbook and had to
disable all win7 bells and whistles to return it to the winxp look and
feel), at least for using multithreaded apps or heavy multitasking....
but at least graphics device drivers shouldn´t be an issue (Intel
video drivers for win7 offers adequate acceleration, linux is a
different story).

As I´ve never tried Jitsi (not even 1.x) on that limited system, I´ll
let the developers offer some more clues and ideas about what might be
going on.

FC


#8

Do I understand, then, that with neither of these systems can I use
jit.si successfully?

Paul

···

El lun, 11-03-2013 a las 11:12 +0100, Emil Ivov escribió:

You are right Fernando! We probably won't have enough resources on
such a configuration.

--sent from my mobile

On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:
        On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo > <stuckybyler2@yahoo.es> wrote:
        > It is a Toshiba Satellite
        > running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7
        GiB RAM,
        > 64-bit, with Mobile Intel® GM45 Express Chipset Graphics
        with 1280 x 800
        > resolution. The video driver is i915 Mobile 4 Series
        Chipset
        > Integrated Graphics Controller (Intel)
        
        this cpu should be powerful enough, although Intel integrated
        graphics
        is known to suck with regards to Linux drivers and speed
        (compared to
        nVidia or ATI Radeon).
        
        > The other is a Toshiba running Windows 7 starter with an
        Intel Atom(TM)
        > CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I
        
        The N450 is a single core cpu... in my experience win7 is
        barely
        usable on this config (I have a single n450 atom netbook and
        had to
        disable all win7 bells and whistles to return it to the winxp
        look and
        feel), at least for using multithreaded apps or heavy
        multitasking....
        but at least graphics device drivers shouldn´t be an issue
        (Intel
        video drivers for win7 offers adequate acceleration, linux is
        a
        different story).
        
        As I´ve never tried Jitsi (not even 1.x) on that limited
        system, I´ll
        let the developers offer some more clues and ideas about what
        might be
        going on.
        
        FC


#9

Well, I believe the first one could work (although a more powerf one
would be even better). It's really the second that's a problem.

Emil

···

On 11.03.13, 09:09, Carola y Pablo wrote:

Do I understand, then, that with neither of these systems can I use
jit.si successfully?

Paul

El lun, 11-03-2013 a las 11:12 +0100, Emil Ivov escribió:

You are right Fernando! We probably won't have enough resources on
such a configuration.

--sent from my mobile

On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:
        On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo >> <stuckybyler2@yahoo.es> wrote:
        > It is a Toshiba Satellite
        > running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7
        GiB RAM,
        > 64-bit, with Mobile Intel® GM45 Express Chipset Graphics
        with 1280 x 800
        > resolution. The video driver is i915 Mobile 4 Series
        Chipset
        > Integrated Graphics Controller (Intel)
        
        this cpu should be powerful enough, although Intel integrated
        graphics
        is known to suck with regards to Linux drivers and speed
        (compared to
        nVidia or ATI Radeon).
        
        > The other is a Toshiba running Windows 7 starter with an
        Intel Atom(TM)
        > CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I
        
        The N450 is a single core cpu... in my experience win7 is
        barely
        usable on this config (I have a single n450 atom netbook and
        had to
        disable all win7 bells and whistles to return it to the winxp
        look and
        feel), at least for using multithreaded apps or heavy
        multitasking....
        but at least graphics device drivers shouldn´t be an issue
        (Intel
        video drivers for win7 offers adequate acceleration, linux is
        a
        different story).
        
        As I´ve never tried Jitsi (not even 1.x) on that limited
        system, I´ll
        let the developers offer some more clues and ideas about what
        might be
        going on.
        
        FC

--
https://jitsi.org


#10

Boby just pointed to me that you started your mail expressing that you
are please with Jitsi for SIP.

The reasons why an XMPP call could perform more poorly could be related
to use of encryption or use of more CPU intensive codecs like Opus or
SILK (in case your SIP provider was forcing use of codecs like G.7XX)

You might want to try and disable support for encryption and see how
this works for you. You can also play with the codec preferences.

Hope this helps,
Emil

···

On 11.03.13, 09:26, Emil Ivov wrote:

Well, I believe the first one could work (although a more powerf one
would be even better). It's really the second that's a problem.

Emil

On 11.03.13, 09:09, Carola y Pablo wrote:

Do I understand, then, that with neither of these systems can I use
jit.si successfully?

Paul

El lun, 11-03-2013 a las 11:12 +0100, Emil Ivov escribió:

You are right Fernando! We probably won't have enough resources on
such a configuration.

--sent from my mobile

On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:
        On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo >>> <stuckybyler2@yahoo.es> wrote:
        > It is a Toshiba Satellite
        > running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7
        GiB RAM,
        > 64-bit, with Mobile Intel® GM45 Express Chipset Graphics
        with 1280 x 800
        > resolution. The video driver is i915 Mobile 4 Series
        Chipset
        > Integrated Graphics Controller (Intel)
        
        this cpu should be powerful enough, although Intel integrated
        graphics
        is known to suck with regards to Linux drivers and speed
        (compared to
        nVidia or ATI Radeon).
        
        > The other is a Toshiba running Windows 7 starter with an
        Intel Atom(TM)
        > CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I
        
        The N450 is a single core cpu... in my experience win7 is
        barely
        usable on this config (I have a single n450 atom netbook and
        had to
        disable all win7 bells and whistles to return it to the winxp
        look and
        feel), at least for using multithreaded apps or heavy
        multitasking....
        but at least graphics device drivers shouldn´t be an issue
        (Intel
        video drivers for win7 offers adequate acceleration, linux is
        a
        different story).
        
        As I´ve never tried Jitsi (not even 1.x) on that limited
        system, I´ll
        let the developers offer some more clues and ideas about what
        might be
        going on.
        
        FC

--
https://jitsi.org


#11

Paul,

I have tried both Jitsi 1.x and 2.x on both of the following two systems (laptops):

System 1:

···

---------------
HP Compaq nx7400
CPU: Intel Core Solo T1350 @ 1.80 GHz
RAM: 4GB
OS: Windows XP Pro SP3
Drivers: All appropriate drivers from HP web site.

System 2:
----------------
Lenovo ThinkPad X100e
CPU: AMD Athlon Neo MV-40 @ 1.60 GHz
RAM: 3GB
OS: Windows XP Pro SP3
Drivers: All appropriate drivers from Lenovo web site.

I have only tried scenarios where System 1 or 2 call outside to another, more powerful machine. I've not tried System 1 <-> System 2. I've tried only audio calls. Audio is usable but not comfortable. Video is beyond capabilities.

See here some interesting comparison about your CPU:
http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Atom+N450+%40+1.66GHz

From that list I can see that my Core Solo and AMD Neo are higher than your Atom so maybe the CPU is the problem. Try calling with the faster one to another friend and see what will be.

Please, note that when I tried on a more recent computer, both audio & video were fine.

Pavel Tankov
ptankov@sip-communicator.com

On 11.март.2013, at 15:42, Emil Ivov wrote:

Boby just pointed to me that you started your mail expressing that you
are please with Jitsi for SIP.

The reasons why an XMPP call could perform more poorly could be related
to use of encryption or use of more CPU intensive codecs like Opus or
SILK (in case your SIP provider was forcing use of codecs like G.7XX)

You might want to try and disable support for encryption and see how
this works for you. You can also play with the codec preferences.

Hope this helps,
Emil

On 11.03.13, 09:26, Emil Ivov wrote:

Well, I believe the first one could work (although a more powerf one
would be even better). It's really the second that's a problem.

Emil

On 11.03.13, 09:09, Carola y Pablo wrote:

Do I understand, then, that with neither of these systems can I use
jit.si successfully?

Paul

El lun, 11-03-2013 a las 11:12 +0100, Emil Ivov escribió:

You are right Fernando! We probably won't have enough resources on
such a configuration.

--sent from my mobile

On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:
       On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo >>>> <stuckybyler2@yahoo.es> wrote:

It is a Toshiba Satellite
running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7

       GiB RAM,

64-bit, with Mobile Intel® GM45 Express Chipset Graphics

       with 1280 x 800

resolution. The video driver is i915 Mobile 4 Series

       Chipset

Integrated Graphics Controller (Intel)

       this cpu should be powerful enough, although Intel integrated
       graphics
       is known to suck with regards to Linux drivers and speed
       (compared to
       nVidia or ATI Radeon).

The other is a Toshiba running Windows 7 starter with an

       Intel Atom(TM)

CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I

       The N450 is a single core cpu... in my experience win7 is
       barely
       usable on this config (I have a single n450 atom netbook and
       had to
       disable all win7 bells and whistles to return it to the winxp
       look and
       feel), at least for using multithreaded apps or heavy
       multitasking....
       but at least graphics device drivers shouldn´t be an issue
       (Intel
       video drivers for win7 offers adequate acceleration, linux is
       a
       different story).

       As I´ve never tried Jitsi (not even 1.x) on that limited
       system, I´ll
       let the developers offer some more clues and ideas about what
       might be
       going on.

       FC

--
https://jitsi.org


#12

Emil, Fernando and Pavel--thank you very much for your help with this.
I will experiment with your suggestions and see what evolves.

Paul

···

El lun, 11-03-2013 a las 21:23 +0200, Pavel Tankov escribió:

Paul,

I have tried both Jitsi 1.x and 2.x on both of the following two systems (laptops):

System 1:
---------------
HP Compaq nx7400
CPU: Intel Core Solo T1350 @ 1.80 GHz
RAM: 4GB
OS: Windows XP Pro SP3
Drivers: All appropriate drivers from HP web site.

System 2:
----------------
Lenovo ThinkPad X100e
CPU: AMD Athlon Neo MV-40 @ 1.60 GHz
RAM: 3GB
OS: Windows XP Pro SP3
Drivers: All appropriate drivers from Lenovo web site.

I have only tried scenarios where System 1 or 2 call outside to another, more powerful machine. I've not tried System 1 <-> System 2. I've tried only audio calls. Audio is usable but not comfortable. Video is beyond capabilities.

See here some interesting comparison about your CPU:
http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Atom+N450+%40+1.66GHz

From that list I can see that my Core Solo and AMD Neo are higher than your Atom so maybe the CPU is the problem. Try calling with the faster one to another friend and see what will be.

Please, note that when I tried on a more recent computer, both audio & video were fine.

Pavel Tankov
ptankov@sip-communicator.com

On 11.март.2013, at 15:42, Emil Ivov wrote:

> Boby just pointed to me that you started your mail expressing that you
> are please with Jitsi for SIP.
>
> The reasons why an XMPP call could perform more poorly could be related
> to use of encryption or use of more CPU intensive codecs like Opus or
> SILK (in case your SIP provider was forcing use of codecs like G.7XX)
>
> You might want to try and disable support for encryption and see how
> this works for you. You can also play with the codec preferences.
>
> Hope this helps,
> Emil
>
> On 11.03.13, 09:26, Emil Ivov wrote:
>> Well, I believe the first one could work (although a more powerf one
>> would be even better). It's really the second that's a problem.
>>
>> Emil
>>
>> On 11.03.13, 09:09, Carola y Pablo wrote:
>>> Do I understand, then, that with neither of these systems can I use
>>> jit.si successfully?
>>>
>>> Paul
>>>
>>> El lun, 11-03-2013 a las 11:12 +0100, Emil Ivov escribió:
>>>> You are right Fernando! We probably won't have enough resources on
>>>> such a configuration.
>>>>
>>>>
>>>> --sent from my mobile
>>>>
>>>> On Mar 11, 2013 1:15 AM, "Fernando Cassia" <fcassia@gmail.com> wrote:
>>>> On Sun, Mar 10, 2013 at 10:48 PM, Carola y Pablo > >>>> <stuckybyler2@yahoo.es> wrote:
>>>>> It is a Toshiba Satellite
>>>>> running Intel® Pentium(R) Dual CPU T3400 @ 2.16GHz × 2, 3,7
>>>> GiB RAM,
>>>>> 64-bit, with Mobile Intel® GM45 Express Chipset Graphics
>>>> with 1280 x 800
>>>>> resolution. The video driver is i915 Mobile 4 Series
>>>> Chipset
>>>>> Integrated Graphics Controller (Intel)
>>>>
>>>> this cpu should be powerful enough, although Intel integrated
>>>> graphics
>>>> is known to suck with regards to Linux drivers and speed
>>>> (compared to
>>>> nVidia or ATI Radeon).
>>>>
>>>>> The other is a Toshiba running Windows 7 starter with an
>>>> Intel Atom(TM)
>>>>> CPU N450 @1.66 GHZ, 2 GB RAM, 32-bit OS X-86. I
>>>>
>>>> The N450 is a single core cpu... in my experience win7 is
>>>> barely
>>>> usable on this config (I have a single n450 atom netbook and
>>>> had to
>>>> disable all win7 bells and whistles to return it to the winxp
>>>> look and
>>>> feel), at least for using multithreaded apps or heavy
>>>> multitasking....
>>>> but at least graphics device drivers shouldn´t be an issue
>>>> (Intel
>>>> video drivers for win7 offers adequate acceleration, linux is
>>>> a
>>>> different story).
>>>>
>>>> As I´ve never tried Jitsi (not even 1.x) on that limited
>>>> system, I´ll
>>>> let the developers offer some more clues and ideas about what
>>>> might be
>>>> going on.
>>>>
>>>> FC
>>>
>>>
>>>
>>
>
> --
> https://jitsi.org
>