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 Post subject: req: automatic audio singal source switcher
PostPosted: Mon Jun 23, 2014 5:40 am 
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Joined: Sun Dec 14, 2008 1:22 pm
Posts: 91
Location: Vilnius, Lithuania
hi!

i remember one very handy feature of rme digi 96/8 PAD card: you could set up what's being output if wave output is not active.
i'd like the same with pulsar: a simple signal source switcher which has two stereo inputs and one stereo output. output relays stream no1 unless there is a stream no2 present, in that case it relays stream no2 and first one is muted.

p


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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Mon Jun 23, 2014 10:32 am 
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Joined: Tue Mar 25, 2008 4:39 pm
Posts: 260
Gut reaction from here is a Modular patch. Would that work?

Going forward, you could tweak the internals as needed.

Let me know. I hope to get my card back in action this week, can put together a Mod3 patch.


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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Mon Jun 23, 2014 3:13 pm 
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Joined: Thu Oct 25, 2001 4:00 pm
Posts: 3018
Location: Aalborg, Denmark
You can do that with a sidechain limiter and a tiny mixer.

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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Mon Jun 23, 2014 3:50 pm 
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Joined: Tue Mar 25, 2008 4:39 pm
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...even easier :)


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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Tue Jun 24, 2014 5:26 am 
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Joined: Sun Dec 14, 2008 1:22 pm
Posts: 91
Location: Vilnius, Lithuania
thanks for replies

well, is sidechainer kosher enough? i mean would that mixer-limiter thingie be bit transparent?


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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Tue Jun 24, 2014 1:36 pm 
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Joined: Thu Oct 25, 2001 4:00 pm
Posts: 3018
Location: Aalborg, Denmark
If A is the input, that should mute B, you use A as the sidechain input for the limiter which is being fed with audio from B. Set the threshold at -96 and the ratio at inf. That should do it. If this is not enough ... repeat.

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 Post subject: Re: req: automatic audio singal source switcher
PostPosted: Mon Jun 30, 2014 4:10 pm 
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Joined: Sun Dec 14, 2008 1:22 pm
Posts: 91
Location: Vilnius, Lithuania
thanks!
made it, works.. but threshold is max -60 in standard sfp limiter, so not purist enough, not bit transparent for sure, but does the job :)


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