Updated Chris's Dynamic Compressor

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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by whomper » Mon May 10, 2010 9:39 pm

Thanks

I think you mean by harder then that the compression ratio is higher
but wouldn't that also translate to louder -- at least to some extent?
If not, then hardness is not at all clear. Unless it means a sharp knee instead of an easy over gradual knee?

I am not sure that I would have called it ripple, but maybe for digital signals that would qualify for the use of that term.

I agree that I would still prefer the old version.
Hide the other parameters until somebody clicks on them and until they do use the default values. Best of both worlds. Those who don't understand can use the simple approach, those who want to tweak stuff can click through and diddle all the settings.

Anybody know of an APL to nyquist translator? This is getting interesting but I am not sure that I want to take time to learn nyquist.
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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by steve » Mon May 10, 2010 10:02 pm

whomper wrote:I think you mean by harder then that the compression ratio is higher

No, the "Compress Ratio" slider does that.

The "Hardness" slider is a combined control for the attack width, attack exponent, release width and release exponent.
The reason that Chris has combined them into one "Hardness" slider is that no-one understood what he meant by "attack width, attack exponent, release width and release exponent".

Basically, if you move the "hardness" slider to the left, you get a slower and more progressive (softer) attack and release. Move it to the right and you get a faster and more abrupt (harder) attack and release.

Personally, now that I've tried it a bit, I like the combination of the width and exponent controls. Chris seems to have engineered a nice balance between width and exponent. However I would (personally) prefer to have two controls, one for attack and another for release.

whomper wrote:Hide the other parameters until somebody clicks on them

You can't do that with Nyquist plug-ins. Settings are either visible or not visible. There is no mechanism in the interface for changing what is visible.

whomper wrote:I am not sure that I want to take time to learn nyquist.

It is very similar to Lisp, or more precisely, to XLisp.
It's a pretty easy language, though Chris has done some fairly trick stuff in this plug-in.
http://audacityteam.org/help/nyquist
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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by whomper » Tue May 11, 2010 2:04 am

Thanks

maybe folks who don't want to learn what the parameters are should be using some other plug in for compression.
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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by kozikowski » Wed May 12, 2010 3:21 am

<<<maybe folks who don't want to learn what the parameters are should be using some other plug in for compression.>>>

Maybe not. At this writing, Chris is the only compressor that can do what it does. Make the show louder and even out the volume variations with almost complete transparency. You can't tell what it's doing, it sounds terrific, and it just works.

Try and get that effect with any of the single element compression tools. When Chris was introduced, even with small problems here and there, he mopped the floor with the other tools. As I wrote then, "You have no idea what you have here."

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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by bgravato » Wed May 12, 2010 8:25 am

Maybe it's time for a fork... lets have two versions of the plugin... call one Chris Compressor for Dummies and the other Chris Compressor for Nerds, or alike :)
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Re: Updated Chris's Dynamic Compressor

Permanent link to this post Posted by steve » Sat May 22, 2010 11:48 am

Update:
Regarding the "issue" of "ripple in amplitude" that I mentioned at the beginning of this topic.
I've still not been able to reproduce the problem and have no idea why it occured, so unless anyone else notices similar effects I think it is safe to assume that it was a freak occurrence and probably caused by some issue outside of the dynamic compressor plug-in. It's just very strange that it occured at all and was 100% repeatable on my first day of testing.

kozikowski wrote:OK, this is serious. I really need the public link to the old version. I can't recommend the new one before trying it and I don't have continuous time in the next couple of weeks to do that. The new one doesn't sound the same, so I don't know if I'm solving the right problems or not.

Chris has clarified this question in his blog:
look in the source of the plugin for instructions on how to re-enable the advanced features. (You just comment out some lines and uncomment others.) The tutorial mentions this, so hopefully new users will be able to find out about them. I would definitely make it a button to switch, but I have very little control over the parameters screen. I basically just set the parameter name and ranges, and I can’t do anything else.

The hardness adjusts the two width settings in sync, on a x^2 scale. The exponents just stay at the defaults.

You can get to any old version by the following scheme:

http://pdf23ds.net/projects/compressor/ ... s-1.X.Y.ny (e.g. compress-1.2.5.ny).

BTW, 1.2.6 doesn’t change the compressor algorithm. Results with the default settings should be identical.

I can confirm that when the settings are equivalent, the results in 1.2.5 and 1.2.6 do indeed appear to be identical. In the old version, I think people were dissuaded from experimenting with settings other than the compress ratio because of the complexity of the interface. Perhaps with the simplified GUI people will be encouraged to experiment more and thus get more out of it.
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