[felixd]

Hello every body !

♣♦♥♠

I've created with great help from

Fred, Uday and Gerardo

BBO Voice Commentary Service

http://pl.bridgebase.eu/vugraph/

On this page You can find all infromation, tutorial and other interesint things.
I'm still developing this page!

♣♦♥♠

Waiting for Your comments !

Contact me on BBO [wojela2]

♣♦♥♠

felixd, Pawel Wojciechowski, BBO PL Team

[Rain]

I actually have my own vent server, same thing.

What I'm concerned about with mumble, felix is..

-Is there a max number of people the server can handle?

-It's possible to chat right? If you created separate rooms to chat in, the good thing is, I can talk with other bboers (or my parents, free long distance calls!)

-Can we ask interested commentators to sign up? Those who'd rather talk than type, but still have some affinity with computers.

May have other questions/comments later.

[felixd]

Max user number hmmm... I think it should be more than 5 000

Yes it's possible to chat but you're automaticly muted by server right now. I do this tbecouse of:

- bandwidth wasting
- echo effect



Interested expert/advanced commentator pls conntact me by priv msg here or by form I'll create tomorrow on http://pl.bridgebase.eu/vugraph/ page.

To do voice commentary it's really good thing to have headset!

[wojela]

Hi
Fulvio Fantoni commented boards during match Cayne vs stars. He explained listeneres why bid, why lead ....It's pretty cool to hear Fantoni analyzing the hand in real time:)
Ela

[felixd]

wojela, on Jun 23 2008, 02:53 PM, said:

Hi
Fulvio Fantoni commented boards during match Cayne vs stars. He explained listeneres why bid, why lead ....It's pretty cool to hear Fantoni analyzing the hand in real time:)
Ela

♣♦♥♠

Lol It was funny listening FF commenting his Own Game ! LIVE hahaha!

♣♦♥♠

www.bridgebase.pl/vugraph/

[santyclz]

Rain, on Jun 18 2008, 05:59 PM, said:

-Is there a max number of people the server can handle?

-It's possible to chat right? If you created separate rooms to chat in, the good thing is, I can talk with other bboers (or my parents, free long distance calls!)

-Can we ask interested commentators to sign up? Those who'd rather talk than type, but still have some affinity with computers.

May have other questions/comments later.

-Is there a max number of people the server can handle?

Felixd said "more than 5,000".

I don't think there is a real answer to the question. It is a function of how much
demand for the product there is. There doesn't seem to be a technological
reason there can't be as many people listening to audio commentary as there
are now reading text commentary. If the demand is there the resources may
become available, if not from BBO directly then from another source.

-It's possible to chat right? If you created separate rooms to chat in, the good thing is, I can talk with other bboers (or my parents, free long distance calls!)

Is it possible...? Yes. Is it a likely outcome? No. If I understand this correctly,
The resources used by people listening are "addative", i.e. 3 people listening
take 3 times the resources as does 1. The resources used by people talking are
"multiplicatative", 3 people talking take 9 times the resources as does 1. This
may, of course, change in future releases of what is still a new product but the
current implimentation is not designed for this type of use. Even the "addative"
nature of listeners strikes me as being far too high. The limiting resource I'm
talking about here is bandwidth, not server power.

-Can we ask interested commentators to sign up? Those who'd rather talk than type, but still have some affinity with computers.

Now is your chance. Currently most bbo vugraphs don't have audio commentary
and the reason for this is lack of commentators. Unlike the text commentaries
where having multiple languages in the same room would create more confusion
than clarity with Mumble there is no reason not to have several channels
providing commentary in different languages for the same room! What is needed
is a Roland Wald ™ to organize the effort. I am *not* volunteering for that
position!

Joe "Santyclz" Shair

[DrTodd13]

Aside from the tricks to get audio quality, mumble is structurally a very simple program. Transmits go to the server in a single message and then the server duplicates that message and sends something to each receiver. Theoretically, if you had N people all talking continually then yes the bandwidth would be N times that of one person talking continually. However, the bandwidth used by one person talking continually would be the same as two people who share the time and together talk continually but don't talk over each other. This approach is called unicasting.

There is another approach called multicasting where the receivers (or the routers in the middle of the network) form a tree. The original server sends to some small numbers of other machines (largely independent of the number of people listening) and each of those machines sends to a small number of other machines and so on and so on. Multicasting has nice bandwidth properties but it is very complicated to get right. You can do multicasting within the network or within an overlay network. Internet service providers almost uniformly do not enable multicasting in their routers even though their routers are capable of doing it. (Maybe some have enabled it in the last few years during which time I've been out of the loop.) One big reason is that it is difficult to know how much to charge people for the traffic they generate when one input packet may create a somewhat arbitrary number of internal packets before leaving the network. In the overlay approach, you create a virtual network on top of the real network and you have servers acting as virtual routers who do the fanout. This is the approach that the MBone took and they've had multicasted audio and video conferencing (vic and vat) for probably at least 15 years. MBone is/was primarily a research infrastructure in academia. It is not generally accessible.