[openmeetings-user] Re: Bandwidth

2011-06-12 Thread Sebastian Wagner 
yes, 

each participant that enables audio/video produces each own stream. 
I am not aware of any Web-Conferencing at this point that melts the 
audio/video of all users into a single stream.


Sebastian

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Re: Bandwidth / hardware question

2010-10-15 Thread Anthony Harris 
Hi again Sabastian, 

let me ask - on the audio+video stream is it an exponential increase?  

ie: x^x?

so if one person is in it'd be 70K, 2 people would be 280K (4 video streams, 2 
for person A, 2 for person B (their own and the other persons), etc.  or is it 
x^(x-1) (I'm not sure if the person seeing themselves is seeing themselves from 
the server or if the plugin is showing local only)

And is it KBytes or Kbits?  (I'm assuming bytes at this point)

And what if there is just audio?

The 500-1000 concurrent users on the dual core cpu 4g ram, is that text chat, 
audio chat, video chat? etc.

Thanks again!

-Tony


On Oct 15, 2010, at 3:27 AM, seba.wag...@gmail.com wrote:

> Sorry it should have meant:
> 
> The bandwidth per Audio+Video Stream is around 70KB
> The bandwidth per Screensharing Stream is around 90KB
> 
> Sebastian
> 
> 2010/10/15 seba.wag...@gmail.com 
> Hallo Tony,
> 
> 500-1000 concurrent Users on a 4GB RAM Dual Core CPU.
> 
> The bandwidth per Audio+Video Stream is around 70KB
> The bandwidth per Audio+Video Stream is around 90KB
> 
> but it really depends on your usage, or if you let all values by default.
> 
> Sebastian
> 
> 2010/10/15 Anthony Harris 
> 
> Hi all,
> 
> I was wondering if anyone has done any tests or has any numbers in terms of 
> hardware and bandwidth requirements?
> 
> For example, I know the more people you have with video, the more bandwidth 
> it takes, but I was wondering if there was a formula some one has so I can 
> figure out how many simultaneous video streams in a video conference room I 
> can have before my bandwidth is gone.
> 
> Also, on that same note, how much CPU/RAM requirements increase per user.
> 
> I know just plain chat wouldn't take a huge amount, but I'm more interested 
> in finding calculations for audio only and A/V rooms.  The hardware I have 
> right now is way underpowered (we kinda tanked it when we stressed it ;) but 
> before I go begging my boss for new gear I need to figure out what will 
> really work for us and be able to explain why we need X system.
> 
> -Tony
> 
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> 
> 
> 
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> Sebastian Wagner
> http://www.webbase-design.de
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> 
> 
> 
> -- 
> Sebastian Wagner
> http://www.webbase-design.de
> http://openmeetings.googlecode.com
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Re: Bandwidth / hardware question

2010-10-15 Thread seba.wag...@gmail.com 
Sorry it should have meant:

The bandwidth per Audio+Video Stream is around 70KB
The bandwidth per *Screensharing* Stream is around 90KB

Sebastian

2010/10/15 seba.wag...@gmail.com 

> Hallo Tony,
>
> 500-1000 concurrent Users on a 4GB RAM Dual Core CPU.
>
> The bandwidth per Audio+Video Stream is around 70KB
> The bandwidth per Audio+Video Stream is around 90KB
>
> but it really depends on your usage, or if you let all values by default.
>
> Sebastian
>
> 2010/10/15 Anthony Harris 
>
> Hi all,
>>
>> I was wondering if anyone has done any tests or has any numbers in terms
>> of hardware and bandwidth requirements?
>>
>> For example, I know the more people you have with video, the more
>> bandwidth it takes, but I was wondering if there was a formula some one has
>> so I can figure out how many simultaneous video streams in a video
>> conference room I can have before my bandwidth is gone.
>>
>> Also, on that same note, how much CPU/RAM requirements increase per user.
>>
>> I know just plain chat wouldn't take a huge amount, but I'm more
>> interested in finding calculations for audio only and A/V rooms.  The
>> hardware I have right now is way underpowered (we kinda tanked it when we
>> stressed it ;) but before I go begging my boss for new gear I need to figure
>> out what will really work for us and be able to explain why we need X
>> system.
>>
>> -Tony
>>
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>>
>>
>
>
> --
> Sebastian Wagner
> http://www.webbase-design.de
> http://openmeetings.googlecode.com
> http://www.wagner-sebastian.com
> seba.wag...@gmail.com
>



-- 
Sebastian Wagner
http://www.webbase-design.de
http://openmeetings.googlecode.com
http://www.wagner-sebastian.com
seba.wag...@gmail.com

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Re: Bandwidth / hardware question

2010-10-15 Thread seba.wag...@gmail.com 
Hallo Tony,

500-1000 concurrent Users on a 4GB RAM Dual Core CPU.

The bandwidth per Audio+Video Stream is around 70KB
The bandwidth per Audio+Video Stream is around 90KB

but it really depends on your usage, or if you let all values by default.

Sebastian

2010/10/15 Anthony Harris 

> Hi all,
>
> I was wondering if anyone has done any tests or has any numbers in terms of
> hardware and bandwidth requirements?
>
> For example, I know the more people you have with video, the more bandwidth
> it takes, but I was wondering if there was a formula some one has so I can
> figure out how many simultaneous video streams in a video conference room I
> can have before my bandwidth is gone.
>
> Also, on that same note, how much CPU/RAM requirements increase per user.
>
> I know just plain chat wouldn't take a huge amount, but I'm more interested
> in finding calculations for audio only and A/V rooms.  The hardware I have
> right now is way underpowered (we kinda tanked it when we stressed it ;) but
> before I go begging my boss for new gear I need to figure out what will
> really work for us and be able to explain why we need X system.
>
> -Tony
>
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> You received this message because you are subscribed to the Google Groups
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>


-- 
Sebastian Wagner
http://www.webbase-design.de
http://openmeetings.googlecode.com
http://www.wagner-sebastian.com
seba.wag...@gmail.com

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Re: Bandwidth

2010-08-18 Thread Mason Breed 

about 40k upload per each person in the auditorium minus the speaker.

http://markmail.org/search/?q=open+meetings++40kb#query:open%20meetings%20%2040kb+page:1+mid:qtfbu2wbhbqluyrd+state:results


Nicholas André wrote:


How much bandwith I need to serve 20-25 people?
2010/8/18 Sebastian Wagner >


Hallo Nícholas,

if your Server has 1Mb download and 400k upload, then you will
hardly be able to serve more then 2-3 people. If they start to
screenshare your bandwidth will be full.

Sebastian

2010/8/18 Nícholas André mailto:nicholasandreolivei...@gmail.com>>

I have a server on my computer, I would like to know how much my
bandwidth will be consumed an average of 10 people.
I have a 1Mb connection of download and 400k upload.
With your experience do yours think that I can support 20-25
people
online in a comfortable manner? would be in a "Audience room".

Sorry for my english, i'm from Brazil.

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Re: Bandwidth

2010-08-18 Thread Nicholas André 
How much bandwith I need to serve 20-25 people?
2010/8/18 Sebastian Wagner 

> Hallo Nícholas,
>
> if your Server has 1Mb download and 400k upload, then you will hardly be
> able to serve more then 2-3 people. If they start to screenshare your
> bandwidth will be full.
>
> Sebastian
>
> 2010/8/18 Nícholas André 
>
> I have a server on my computer, I would like to know how much my
>> bandwidth will be consumed an average of 10 people.
>> I have a 1Mb connection of download and 400k upload.
>> With your experience do yours think that I can support 20-25 people
>> online in a comfortable manner? would be in a "Audience room".
>>
>> Sorry for my english, i'm from Brazil.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
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>>
>>
>
>
> --
> Sebastian Wagner
> http://www.webbase-design.de
> http://openmeetings.googlecode.com
> http://www.wagner-sebastian.com
> seba.wag...@gmail.com
>
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Re: Bandwidth

2010-08-18 Thread Sebastian Wagner 
Hallo Nícholas,

if your Server has 1Mb download and 400k upload, then you will hardly be
able to serve more then 2-3 people. If they start to screenshare your
bandwidth will be full.

Sebastian

2010/8/18 Nícholas André 

> I have a server on my computer, I would like to know how much my
> bandwidth will be consumed an average of 10 people.
> I have a 1Mb connection of download and 400k upload.
> With your experience do yours think that I can support 20-25 people
> online in a comfortable manner? would be in a "Audience room".
>
> Sorry for my english, i'm from Brazil.
>
> --
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>


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http://www.wagner-sebastian.com
seba.wag...@gmail.com

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Re: Bandwidth clarification

2009-10-21 Thread Alexei Fedotov 

Matti,

You asked why it has form n * (n-1). IMHO, the server gets the stream
from every user, and sends this stream to every user except the stream
producer. Each user watches local video of herself.

Thanks.

2009/10/22 Matti Laakso :
>
> About bandwidth
>
> To Alexei's calculation 12*(12-1)...why isnt it like this kb *
> (users-1) * (users-1)
> So kb*11*11 because in 12people conference I am sending to 11 people,
> and so is everyone else. Where does that first 12 in your calculation
> come from?
>
>
> Someone give the perfect answer for this setup: 5 people in a
> conference room with audio only. My opinion is with best quality: 16kb
> * 4 * 4 or am I calculating something terribly wrong :D ?
>
>
> On Oct 21, 3:44 pm, Alexei Fedotov  wrote:
>> Allan,
>> The required server bandwidth grows as a squared number of users (for
>> your case, there should be 12 * (12 - 1)).
>>
>>
>>
>> On Wed, Oct 21, 2009 at 4:38 PM, Allan Pinto  wrote:
>>
>> > how much would it be for 12 users with only video, 16k x 12 ?
>>
>> > On Wed, Oct 21, 2009 at 12:30 PM, Sebastian Wagner
>> >  wrote:
>> >> hi,
>>
>> >> the values from the config.xml are right for a 1:1 meeting where I 
>> >> broadcast
>> >> my audio/video and the other person broadcasts its audio/video in a
>> >> Conference Room at default settings.
>>
>> >> As soon as multiple users are in a room and .. for example one person 
>> >> shares
>> >> nothing, the other only audio, the third one resize the video pod to 
>> >> 640x480
>> >> and then republishes the webcam... you see there are many way to influence
>> >> it either positive ... but also negative: You can make the Video-Pods
>> >> Default sizes much smaller and you will see that the bandwidth usage will 
>> >> be
>> >> smaller.
>>
>> >> So the problem here is that I can only get you numbers depending on a
>> >> certain scenario.
>>
>> >> sebastian
>>
>> >> 2009/10/21 Peder Hedlund 
>>
>> >>> According to
>> >>>http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettings a
>> >>> conference room requires 16 kBit down and 10 kBit up.
>> >>> In the login window the Quality popdown switches between Best=16kBit up
>> >>> (default) and medium=10kBit.
>> >>> In the config.xml it states that Normal=16kBit and Best=48kBit
>>
>> >>> So, which one is correct and what numbers should I use to predict
>> >>> bandwidth requirements for default sessions?
>>
>> >>> Regards,
>>
>> >>>   Peder
>>
>> >> --
>> >> Sebastian Wagner
>> >>http://www.webbase-design.de
>> >>http://openmeetings.googlecode.com
>> >>http://www.laszlo-forum.de
>> >> seba.wag...@gmail.com
>>
>> > --
>> > Thanx and regd's.
>>
>> > Allan.
>> >http://www.in2dwok.com
>>
>> --
>> With best regards / с наилучшими пожеланиями,
>> Alexei Fedotov / Алексей 
>> Федотов,http://www.telecom-express.ru/http://harmony.apache.org/http://www.expressaas.com/http://openmeetings.googlecode.com/
> >
>



-- 
With best regards / с наилучшими пожеланиями,
Alexei Fedotov / Алексей Федотов,
http://www.telecom-express.ru/
http://harmony.apache.org/
http://www.expressaas.com/
http://openmeetings.googlecode.com/

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Re: Bandwidth clarification

2009-10-21 Thread Matti Laakso 

About bandwidth

To Alexei's calculation 12*(12-1)...why isnt it like this kb *
(users-1) * (users-1)
So kb*11*11 because in 12people conference I am sending to 11 people,
and so is everyone else. Where does that first 12 in your calculation
come from?


Someone give the perfect answer for this setup: 5 people in a
conference room with audio only. My opinion is with best quality: 16kb
* 4 * 4 or am I calculating something terribly wrong :D ?


On Oct 21, 3:44 pm, Alexei Fedotov  wrote:
> Allan,
> The required server bandwidth grows as a squared number of users (for
> your case, there should be 12 * (12 - 1)).
>
>
>
> On Wed, Oct 21, 2009 at 4:38 PM, Allan Pinto  wrote:
>
> > how much would it be for 12 users with only video, 16k x 12 ?
>
> > On Wed, Oct 21, 2009 at 12:30 PM, Sebastian Wagner
> >  wrote:
> >> hi,
>
> >> the values from the config.xml are right for a 1:1 meeting where I 
> >> broadcast
> >> my audio/video and the other person broadcasts its audio/video in a
> >> Conference Room at default settings.
>
> >> As soon as multiple users are in a room and .. for example one person 
> >> shares
> >> nothing, the other only audio, the third one resize the video pod to 
> >> 640x480
> >> and then republishes the webcam... you see there are many way to influence
> >> it either positive ... but also negative: You can make the Video-Pods
> >> Default sizes much smaller and you will see that the bandwidth usage will 
> >> be
> >> smaller.
>
> >> So the problem here is that I can only get you numbers depending on a
> >> certain scenario.
>
> >> sebastian
>
> >> 2009/10/21 Peder Hedlund 
>
> >>> According to
> >>>http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettings a
> >>> conference room requires 16 kBit down and 10 kBit up.
> >>> In the login window the Quality popdown switches between Best=16kBit up
> >>> (default) and medium=10kBit.
> >>> In the config.xml it states that Normal=16kBit and Best=48kBit
>
> >>> So, which one is correct and what numbers should I use to predict
> >>> bandwidth requirements for default sessions?
>
> >>> Regards,
>
> >>>   Peder
>
> >> --
> >> Sebastian Wagner
> >>http://www.webbase-design.de
> >>http://openmeetings.googlecode.com
> >>http://www.laszlo-forum.de
> >> seba.wag...@gmail.com
>
> > --
> > Thanx and regd's.
>
> > Allan.
> >http://www.in2dwok.com
>
> --
> With best regards / с наилучшими пожеланиями,
> Alexei Fedotov / Алексей 
> Федотов,http://www.telecom-express.ru/http://harmony.apache.org/http://www.expressaas.com/http://openmeetings.googlecode.com/
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Re: Bandwidth clarification

2009-10-21 Thread Peder 

Ok, so this means that for ,say, a 4 users conference session, where
each uses the default quality setting (erroneously displayed in the
login page as 16kBit, but in reality 48 assuming default config.xml,
right?) each client will need 3*some-value-greater-than-48 (the b/w
page says 10 up and 16 down so I guess the download speed is upload
+some value) down and 48kBit up and the server will need 4*3*svgt48 up
and 4*48 down.

On 21 Okt, 14:30, Sebastian Wagner  wrote:
> hi,
>
> the values from the config.xml are right for a 1:1 meeting where I broadcast
> my audio/video and the other person broadcasts its audio/video in a
> Conference Room at default settings.
>
> As soon as multiple users are in a room and .. for example one person shares
> nothing, the other only audio, the third one resize the video pod to 640x480
> and then republishes the webcam... you see there are many way to influence
> it either positive ... but also negative: You can make the Video-Pods
> Default sizes much smaller and you will see that the bandwidth usage will be
> smaller.
>
> So the problem here is that I can only get you numbers depending on a
> certain scenario.
>
> sebastian
>
> 2009/10/21 Peder Hedlund 
>
>
>
> >  According to
> >http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettingsa
> > conference room requires 16 kBit down and 10 kBit up.
> > In the login window the Quality popdown switches between Best=16kBit up
> > (default) and medium=10kBit.
> > In the config.xml it states that Normal=16kBit and Best=48kBit
>
> > So, which one is correct and what numbers should I use to predict bandwidth
> > requirements for default sessions?
>
> > Regards,
>
> >   Peder
>
> --
> Sebastian 
> Wagnerhttp://www.webbase-design.dehttp://openmeetings.googlecode.comhttp://www.laszlo-forum.de
> seba.wag...@gmail.com
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Re: Bandwidth clarification

2009-10-21 Thread Alexei Fedotov 

Allan,
The required server bandwidth grows as a squared number of users (for
your case, there should be 12 * (12 - 1)).

On Wed, Oct 21, 2009 at 4:38 PM, Allan Pinto  wrote:
>
> how much would it be for 12 users with only video, 16k x 12 ?
>
> On Wed, Oct 21, 2009 at 12:30 PM, Sebastian Wagner
>  wrote:
>> hi,
>>
>> the values from the config.xml are right for a 1:1 meeting where I broadcast
>> my audio/video and the other person broadcasts its audio/video in a
>> Conference Room at default settings.
>>
>> As soon as multiple users are in a room and .. for example one person shares
>> nothing, the other only audio, the third one resize the video pod to 640x480
>> and then republishes the webcam... you see there are many way to influence
>> it either positive ... but also negative: You can make the Video-Pods
>> Default sizes much smaller and you will see that the bandwidth usage will be
>> smaller.
>>
>> So the problem here is that I can only get you numbers depending on a
>> certain scenario.
>>
>> sebastian
>>
>> 2009/10/21 Peder Hedlund 
>>>
>>> According to
>>> http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettings a
>>> conference room requires 16 kBit down and 10 kBit up.
>>> In the login window the Quality popdown switches between Best=16kBit up
>>> (default) and medium=10kBit.
>>> In the config.xml it states that Normal=16kBit and Best=48kBit
>>>
>>> So, which one is correct and what numbers should I use to predict
>>> bandwidth requirements for default sessions?
>>>
>>> Regards,
>>>
>>>   Peder
>>>
>>
>>
>>
>> --
>> Sebastian Wagner
>> http://www.webbase-design.de
>> http://openmeetings.googlecode.com
>> http://www.laszlo-forum.de
>> seba.wag...@gmail.com
>>
>> >
>>
>
>
>
> --
> Thanx and regd's.
>
> Allan.
> http://www.in2dwok.com
>
> >
>



-- 
With best regards / с наилучшими пожеланиями,
Alexei Fedotov / Алексей Федотов,
http://www.telecom-express.ru/
http://harmony.apache.org/
http://www.expressaas.com/
http://openmeetings.googlecode.com/

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Re: Bandwidth clarification

2009-10-21 Thread Allan Pinto 

how much would it be for 12 users with only video, 16k x 12 ?

On Wed, Oct 21, 2009 at 12:30 PM, Sebastian Wagner
 wrote:
> hi,
>
> the values from the config.xml are right for a 1:1 meeting where I broadcast
> my audio/video and the other person broadcasts its audio/video in a
> Conference Room at default settings.
>
> As soon as multiple users are in a room and .. for example one person shares
> nothing, the other only audio, the third one resize the video pod to 640x480
> and then republishes the webcam... you see there are many way to influence
> it either positive ... but also negative: You can make the Video-Pods
> Default sizes much smaller and you will see that the bandwidth usage will be
> smaller.
>
> So the problem here is that I can only get you numbers depending on a
> certain scenario.
>
> sebastian
>
> 2009/10/21 Peder Hedlund 
>>
>> According to
>> http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettings a
>> conference room requires 16 kBit down and 10 kBit up.
>> In the login window the Quality popdown switches between Best=16kBit up
>> (default) and medium=10kBit.
>> In the config.xml it states that Normal=16kBit and Best=48kBit
>>
>> So, which one is correct and what numbers should I use to predict
>> bandwidth requirements for default sessions?
>>
>> Regards,
>>
>>   Peder
>>
>
>
>
> --
> Sebastian Wagner
> http://www.webbase-design.de
> http://openmeetings.googlecode.com
> http://www.laszlo-forum.de
> seba.wag...@gmail.com
>
> >
>



-- 
Thanx and regd's.

Allan.
http://www.in2dwok.com

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Re: Bandwidth clarification

2009-10-21 Thread Sebastian Wagner 
hi,

the values from the config.xml are right for a 1:1 meeting where I broadcast
my audio/video and the other person broadcasts its audio/video in a
Conference Room at default settings.

As soon as multiple users are in a room and .. for example one person shares
nothing, the other only audio, the third one resize the video pod to 640x480
and then republishes the webcam... you see there are many way to influence
it either positive ... but also negative: You can make the Video-Pods
Default sizes much smaller and you will see that the bandwidth usage will be
smaller.

So the problem here is that I can only get you numbers depending on a
certain scenario.

sebastian

2009/10/21 Peder Hedlund 

>  According to
> http://code.google.com/p/openmeetings/wiki/BandwidthNetworkSettings a
> conference room requires 16 kBit down and 10 kBit up.
> In the login window the Quality popdown switches between Best=16kBit up
> (default) and medium=10kBit.
> In the config.xml it states that Normal=16kBit and Best=48kBit
>
> So, which one is correct and what numbers should I use to predict bandwidth
> requirements for default sessions?
>
> Regards,
>
>   Peder
>
> >
>


-- 
Sebastian Wagner
http://www.webbase-design.de
http://openmeetings.googlecode.com
http://www.laszlo-forum.de
seba.wag...@gmail.com

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