AUTOMATION ?!? - filters

wazer wrote on 5/8/2003, 2:17 PM
Does anybody tried to filter down or up a wave - like the DJ's? (using the automation of VEGAS.)

I think VEGAS needs a serious (frequency-)automation-rescaling or whatever..
I can't do for e.g. a simple LPF sweep, becouse the low freq has about 10-20 pixel space to work on at the max zoom level..
None of the curve's sweep between 20Hz and 20kHz work for me. I have to keep on using the FusionFilter - by processing the copyed wave in SF...

How do you use this?

w!

Comments

PipelineAudio wrote on 5/8/2003, 2:25 PM
IS there a way to zoom in on envelopes? for instance volume, I can only get down near -60 or something before it skips to -inf
and thats not always clen enough, sounds like someone throwing a switch
wazer wrote on 5/8/2003, 2:42 PM
Hi PipelineAudio!

That's exactly what i'm writing about..
ZOOM, i mean adding and editing automation points at maximum track height.

The only way to get some LF sweep is using the "SET TO..", but maaan that's a biiig job... And there's no correct graphic overwiev for points like 30Hz and 40 Hz..

w!
roger_74 wrote on 5/8/2003, 3:48 PM
Yeah, keyboard shortcuts to move selected envelopepoints up/down would be nice.
SonyJEV wrote on 5/8/2003, 5:44 PM
Unfortunately the DirectX automation specifications do not currently allow us to assign any scaling other than linear to plug-in parameters.

Filter frequency parameters suffer from this the most since there isn't a natively logarithmic unit of frequency similar to dB for gains (well there are semitones\cents but an EQ that works like that would be a bit wierd).

The options available to us where a) to use some physically meaningless range like 0 to 100 and make the plug-in scale the frequency nicely, or b) use the physical frequency units that the plug-ins display in their UI. We chose b...

I think the best option would be using the physical (meaningful) units but having a mechanism by which to say min = 20 Hz, max = 20,000 Hz *AND* this unit should vary logarithmically (ie. vertical distance would be divided into octaves). Perhaps someday we will be able to incorporate this functionality.

Having said that, though somewhat cumbersome, the envelope context menu "Set To" option does work...

You can also edit plug-in automation envelopes at the edit cursor by adjusting the parameter in the plug-in UI (note: not all plug-ins support this, but SF ones and some others do). I think this is less cumbersome.

Vegas 4.0b also includes some modifiers to make envelope editing easier:

Ctrl = fine movement, vertical only
Alt = horizontal movement only
Ctrl + Alt = vertical movement only (not fine)

And of course good old "Shift" temporarily disables snapping as always.

There's one more way to get finer envelope control: Click and *hold* the mouse button down on an envelope point/line and use numpad 2/8 to lower/raise the envelope one pixel at a time.

And now you know the rest of the story <g>...

--j
stakeoutstudios wrote on 5/9/2003, 6:09 AM
But what you could do is do a low frequency resonant filter a mid frequency resonant filter and a high frequency resonant fillter. As well as the full range.

OK that's four plugins now, but if all you have to do is restrict the frequencies each one covers, surely that's not a mammoth task?
stakeoutstudios wrote on 5/10/2003, 10:43 AM
in fact, it needn't even be split into four plugins - just four plugin modes!