Le vendredi 3 décembre 2010 10:56:19, Francesco P. Sileno a écrit :
> Hi all!
Hi Francesco !
> I'm a newbie in the liquidsoap world, when I've been asked to help in
> setting up a web-radio I've opted for this software - which I think I
> will never leave even if it is too heavy to run on an Alix! :)
Thanks and welcome aboard !
> I'm trying to do some transition with fallback on 3-source: live, studio
> and emergency. What I want is that when switching to the emergency
> playlist, there are first 5 seconds of noise(), and then the actual MP3s
> playlist fade in.
>
> I've tried many combination of add/sequence both in the fallback
> definition and in the crossfade function, what I don't understand is why
> in the following example the noise doesn't stop after 5 seconds but last
> forever (the same appen whith blank() - but with noise() every 5 seconds
> there is a restart of normalization with a gain peak):
>
> def crossfade_noise(from, to)
>
> add(normalize = false, [
> sequence([
> fade.final(duration = .5, from),
> fade.initial(duration = .5,
> normalize(
> gain_min = -40.,
> gain_max = -10.,
> target = -25.,
> noise(duration = 5.)
> )
> )
> ]),
> fade.initial(duration = 6., to)
> ])
> end
>
> Cna someone help me in understand what I'm doing wrong? I'm using
> liquidsoap 0.9.3 from the Debian repository.
I think your problem comes from the following point:
* when adding two sources, for instance:
add([s,s'])
then track limits and metadata are taken from the _first_ source.
Thus, in your script, you should put the destination source _first_. Otherwise,
the switch may be confused, in particular if it is not track_sensitive.
I would suspect that, in your case, the sources keeps on switching again and
again using this transitions..
You should better use this:
def crossfade_noise(from, to)
add(normalize = false, [
fade.initial(duration = 6., to),
sequence([
fade.final(duration = .5, from),
fade.initial(duration = .5,
normalize(
gain_min = -40.,
gain_max = -10.,
target = -25.,
noise(duration = 5.)
)
)
])
])
end
And it should be ok.
As a side note: David, do we check for fallability of switched sources and the
like taking into account the fallibility of the transitions? I bet no and I
also bet it is not possible... Should we be conservative in this case and
declare the whole source fallible?
Romain
------------------------------------------------------------------------------
Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
http://p.sf.net/sfu/intelisp-dev2dev
_______________________________________________
Savonet-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/savonet-users
