Yes it does help.
Also, I crossed topics. Sorry for the confusion. I know geography won't help
with clock drift. Most of the broadcasters are all over the US, and a get
crappy routing paths to their live inputs. So placing two or three Icecast
servers on the map would help with that.
On Thu, Apr 28, 2011 at 2:43 AM, David Baelde <[email protected]>wrote:
> Hi guys,
>
> 2011/4/28 Brandon Casci <[email protected]>:
> > Increasing the buffer size has seemed to make a stable stream last a bit
> > longer.
>
> This solution makes sense: if the buffer is big enough, the drift
> won't be noticed before the end of the broadcast, assuming it's a live
> show. But this should apply equally well to liquidsoap and icecast.
> The only difference that I can think of is that we don't buffer
> encoded data like icecast but decoded one (hence the buffer parameter
> in seconds). This may have interfered in your observations, and may
> make a large buffer too memory-consuming. (I think we should change
> this eventually, it's a matter of finding a good reason to do this
> rather than something else...)
>
> > Geography matters for some people. I don't think that's an issue for
> > liquidsoap though. A few icecast servers in different locations for live
> > inputs might help some people out. They can choose one that works best
> for
> > them. They could be configured in various ways so liquidsoap only has to
> > worry about pulling from a single URL.
>
> That, however, does not look like a solution. If it's a clock drift
> (as in, something that could be fixed by using NTP) it's only about
> time not space. However, an icecast relay will mean extra buffers
> which may delay the problem.
>
> Another possibility is the lack of catchup on libshout-based clients.
> If there is a lag in the network (which may happen with low or high
> bandwidth links) sending one packet will be delayed, so the next one
> should be sent quickly to catchup. The libshout offers a default
> synchronization mode that doesn't do that, which creates an
> accumulation of small lags. This would look pretty much like a clock
> drift, but probably less regular.
>
> Hope this helps...
> --
> David
>
--
=========================================
Brandon Casci
Loudcaster
http://loudcaster.com
=========================================
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