SAC 4.0 has arrived

Discussions about the use and operation of SAC (Software Audio Console)

Re: SAC 4.0 has arrived

Postby RBIngraham » Tue Jul 14, 2015 9:32 pm

IraSeigel wrote:
BrettBrandon wrote:...His pic of the Elton John concert looks to be for monitors. It dosen't look like they trust it for FOH.


I don't think it's a matter of trusting it for FOH. It's more a matter of personal preference of the engineer. I'm sure an Elton John budget could provide whatever the engineer wanted.


Exactly. SAC is on the Elton tour because the monitor engineer wants to use that. I doubt Elton gives a hoot about what the console is as long as he hears what he needs and it does what he wants it to do. I am sure he leaves the gear selection to the folks he pays to deal with it.
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Re: SAC 4.0 has arrived

Postby RBIngraham » Tue Jul 14, 2015 9:36 pm

BrentEvans wrote:Well, I'm done with the argument. I love dropping little jokes that he probably won't get.

Wonder how he'll try to bait me back?


Yeah, I have to say I loved the only slightly veiled jabs.. brilliant. :D
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Re: SAC 4.0 has arrived

Postby RBIngraham » Tue Jul 14, 2015 9:41 pm

BrentEvans wrote:
Joe,

Is there support for multiple ASIO drivers so you could use something like ASIO4All and VAC to do virtual cabling to LiveProfessor or Reaper or whatever else... or maybe use Dante cards to take it to a second computer (which could then be VNC accessed)?


No, at the moment it does not do that. Working with multiple ASIO interfaces is actually quite dificult and ASIO doesn't want you doing that I only know one piece of software that can aggregate ASIO devices.
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Re: SAC 4.0 has arrived

Postby Craig » Tue Jul 14, 2015 9:57 pm

jlepore wrote:I would give up on the idea of native VST support. It is simply not a reasonable fit for the architecture. Remember, the audio processor (server) is a totally different process, and possibly a different MACHINE than the user interface(s). There is simply no audio to drive the VSTs in the view of the user. The only possible solution would be to create a rack like sound grid, etc.

Personally, I think this is where the stability and speed of the engine comes from. No longer can someone's VST bring down the entire system, or a UI bug, or anything else like that. I even crashed the UI during a show ( by editing a layout wrong) and none of the 10 people on stage, or 1200 in the room knew about it. I never lost control because my tablet was still connected to engine, and restarting my GUI took me about 20 seconds.

Then I guess I won't buy in and be stuck with SAC. I understand all too well an unstable VST can bring everything down - that's true in a DAW or a LAW (whatever you want to call it), but once you have a stable selection, the results can be awesome. And I've had a pretty stable ride with SAC knowing what the limitations are. Am I'm in a fortunate position to be only mixing one band all the time.
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Re: SAC 4.0 has arrived

Postby shmick » Tue Jul 14, 2015 10:26 pm

Does AMP have anything equivalent to Bob's levelizer, which works great as a de-esser + a limiter on monitor mixes?

The only 3rd party VST we're using is the Dual Linkwitz-Riley crossover plugin on our PA stack.
Host: ASUS P5Q SE/R, Intel E8400 O/C'd to 3.8ghz, 3 x RME HDSP 9652, XP Pro
Gear: 9 x ADA8K, 4 x Audiorails, 1 x BCF2000
Config: FOH + 12 stereo IEM mixes
Misc: Dual Linkwitz-Riley plugin, Studio Levelizer, Studio Reverb, Frequency Analyzer, SAWStudioLite
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Re: SAC 4.0 has arrived

Postby jlepore » Tue Jul 14, 2015 10:48 pm

Every channel has a gate, de-Essex, AND a compressor, all with side chain frequency selections. You can do everything the levelizer does, and you don't need to add plugins on outputs - these required functions are already there.
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Re: SAC 4.0 has arrived

Postby BrettBrandon » Tue Jul 14, 2015 11:22 pm

This is what is available for all Inputs, Aux's, and Outputs for EQ and Dynamics.
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Re: SAC 4.0 has arrived

Postby Jeffsco » Tue Jul 14, 2015 11:53 pm

jlepore wrote:I even crashed the UI during a show ( by editing a layout wrong) and none of the 10 people on stage, or 1200 in the room knew about it. I never lost control because my tablet was still connected to engine, and restarting my GUI took me about 20 seconds.


Joe....was this using SAC? Could you elaborate on this a bit? How can you restart the host when the engine is live? Reason I ask 8s that during the last song last set....my host disconnected from the network. I was mixing via wireless remote so the audio kept passing and when the host reconnected...several mic channels were inoperative. Are you saying there's a way to reboot things and get it working again?
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Re: SAC 4.0 has arrived

Postby mattseymour » Wed Jul 15, 2015 2:22 am

This would have been using Amp. Joe's stressing the greater stability and robustness of amp over sac where a ui problem can bring the audio engine down or at least make it impossible to regain control.
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Re: SAC 4.0 has arrived

Postby RBIngraham » Wed Jul 15, 2015 2:56 am

What Brett's screen shot doesn't show is that any of thse bands of EQ can be hi or low shelf, or peak or hi or low pass. So you can ditch the crossver plug in just by using a pair of EQ bands set to hi or low pass with identical settings. That is what I have been doing for subs and it works very well.

What Joe is describing with the crash is AMP's GUI crashed once because the end user can customize their own GUI windows and it is possible to break things that way, although I know Bob P has put a lot of work into making that not being down the GUI when you mess up the code. Anyway the point was that the GUI is completely seperate from the server or host to use the SAC term. AMP's server has almost no GUI at all except to set your sound card, etc.. So if the GUI crashes, the server keep right on running and you can simply reopen the GUI. If you are linked in to the server via wi-fi and you lose the connection, nothing goes down or locks up. You simply reconnect your wi-fi and click one button to relink the GUI and server. No one would ever know you lost control unless you missed a cue or something during that time.
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