[pp.int.general] Help with broadcasting

Chr1s Shea7s yawnbox at gmail.com
Thu Apr 28 22:17:07 CEST 2011


I'm not so sure this is the solution you're looking for. You probably
want to look into peercasting:
http://en.wikipedia.org/wiki/Peercasting

From: http://mumble.sourceforge.net/Commercial_Hosting#Murmur_technical_requirements

"Mumble uses CELT, and using the highest quality and lowest latency,
the peak bandwidth is 134kbit/s per speaker per listener (with IP and
UDP overhead). However, this is the max bandwidth, and the recommended
bandwidth (that has a very unnoticeable quality reduction for normal
speech) is 63kbit/s. In other words, a server with 10 users and 1 user
speaking will need to replicate the datastream 9 times, for a total of
63*9=567kbit/s outgoing bandwidth. If all 10 users speak at once, each
stream has to be replicated 9 times, for a total of 63kbit/s*9*10=5.67
Mbit/s. Note that these are absolute worst-case scenarios, and the
average bandwidth use is around 20-30 kbit/s during speech, multiplied
by the number of listeners; it is only possibly in a real world
scenario for at most two people to be talking at the same time and
still understand what they are saying."

63*100=6300kbit/s outgoing bandwidth (worst case scenario)
If this is correct, you would need an upstream of 787.5 Mbit/s

30*100=3000kbit/s, average, which is still 375Mbit/s of upload bandwidth.

Maybe you could buy one month of service here: mumblevoice.com (for
100, 150, or 200 users). I've never used this service.

Good luck


On Thu, Apr 28, 2011 at 11:57 AM, Erik Lönroth <erik.lonroth at gmail.com> wrote:
> Hello!
>
> I would need some help setting up a "radio broadcast" for the
> interview I'm doing with "The Bradley Manning Support Network".
>
> I prefer to use "Mumble", since one of the participants is not so good
> on setting up techs. Connecting via mumble is a challenge already and
> this is a track we sort of have taken so far. If you have a simpler
> solution, please tell us. Open Source only.
>
> The problem I have is that this interview might attract more
> listensters than I can host myself, so basically I'm looking for
> someone that can host a real solution for this with enough bw for "I
> dont know, but possibly 100? " listeners.
>
> If someone lets us connect to a "mumble" server, make the recording of
> the interview - and - broadcast it live. I would be so greatful!
>
> The interview is scheduled on the 25:th may preliminary.
>
> I really need help here.
>
> /Erik
> ____________________________________________________
> Pirate Parties International - General Talk
> pp.international.general at lists.pirateweb.net
> http://lists.pirateweb.net/mailman/listinfo/pp.international.general
>



-- 
Christopher Sheats
yawnbox at gmail.com


More information about the pp.international.general mailing list