Shorter minimum attack and release times for Compressor

This read-only archive contains discussions from the Adding Feature forum.
New feature request may be posted to the Adding Feature forum.
Technical support is available via the Help forum.
steve
Site Admin
Posts: 81609
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Shorter minimum attack and release times for Compressor

Post by steve » Tue Nov 18, 2014 11:58 am

cpsmusic wrote:One thing that would be useful to me would be an adjustable make-up gain control.
The current "make-up gain" is actually a "normalize" function. It amplifies the output to a peak level of 0 dB.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Gale Andrews
Quality Assurance
Posts: 41761
Joined: Fri Jul 27, 2007 12:02 am
Operating System: Windows 10

Re: Shorter minimum attack and release times for Compressor

Post by Gale Andrews » Tue Nov 18, 2014 2:44 pm

steve wrote:
cpsmusic wrote:One thing that would be useful to me would be an adjustable make-up gain control.
The current "make-up gain" is actually a "normalize" function. It amplifies the output to a peak level of 0 dB.
This is getting off the subject, perhaps you should split to a new topic.

I think it is better to describe "Make-up gain" as an "Amplify" function (in Audacity terminology). It only makes the loudest track peak at 0 dB, any other tracks are scaled up by the same dB increase that the loudest track had.

Gale
________________________________________FOR INSTANT HELP: (Click on Link below)
* * * * * Tips * * * * * Tutorials * * * * * Quick Start Guide * * * * * Audacity Manual

steve
Site Admin
Posts: 81609
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Shorter minimum attack and release times for Compressor

Post by steve » Tue Nov 18, 2014 5:02 pm

Gale Andrews wrote:This is getting off the subject
If we want to restrict the topic to the one feature stated in the topic, then I think we all agree.
I'll be quite happy to make the change this evening if there are no objections.

Within the current effect:
I'm +1 for Attack Time to go down to 0.01 seconds, but -1 for going less than that.
I'm +1 for Release Time to go down to 0.1 seconds, but -1 for going less than that.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

billw58
Forum Staff
Posts: 5601
Joined: Wed Aug 12, 2009 2:10 am
Operating System: macOS 10.15 Catalina or later

Re: Shorter minimum attack and release times for Compressor

Post by billw58 » Tue Nov 18, 2014 5:05 pm

steve wrote:
Gale Andrews wrote:This is getting off the subject
If we want to restrict the topic to the one feature stated in the topic, then I think we all agree.
I'll be quite happy to make the change this evening if there are no objections.
Go for it.
-- Bill

waxcylinder
Forum Staff
Posts: 14684
Joined: Tue Jul 31, 2007 11:03 am
Operating System: Windows 10

Re: Shorter minimum attack and release times for Compressor

Post by waxcylinder » Tue Nov 18, 2014 5:12 pm

Do-ocray ... :)
________________________________________FOR INSTANT HELP: (Click on Link below)
* * * * * FAQ * * * * * Tutorials * * * * * Audacity Manual * * * * *

Trebor
Posts: 9953
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Shorter minimum attack and release times for Compressor

Post by Trebor » Tue Nov 18, 2014 6:18 pm

steve wrote:Within the current effect:
I'm +1 for Attack Time to go down to 0.01 seconds, but -1 for going less than that.
That's a minimum attack of of 10 ms. Other compressors allow a minimum attack below 1 ms ...
Gmulti -muiltiband compressor.gif
Attack and release settings on GMulti
Gmulti -muiltiband compressor.gif (76.36 KiB) Viewed 1661 times
FloorFish (expander) , attack and release ranges.gif
Attack and release in milliseconds
FloorFish (expander) , attack and release ranges.gif (49.09 KiB) Viewed 1660 times
The default attack setting could still be something middling , but give people the option of sub 1ms if it is possible.

steve
Site Admin
Posts: 81609
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Shorter minimum attack and release times for Compressor

Post by steve » Tue Nov 18, 2014 6:38 pm

Trebor wrote:Other compressors allow a minimum attack below 1 ms ...
Perhaps they do, but do they go up to 5 seconds attack and 30 seconds release?

At the minimum settings, those GMulti compressor setting will not behave like a "dynamic compressor" in the Audacity Compressor - it's too fast for low frequencies. it'll be "wave-shaping" rather than "compressing the dynamics". (Not that there is anything wrong with that as "an effect".)
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Trebor
Posts: 9953
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Shorter minimum attack and release times for Compressor

Post by Trebor » Tue Nov 18, 2014 7:46 pm

steve wrote:
Trebor wrote:Other compressors allow a minimum attack below 1 ms ...
Perhaps they do, but do they go up to 5 seconds attack and 30 seconds release?

At the minimum settings, those GMulti compressor setting will not behave like a "dynamic compressor" in the Audacity Compressor - it's too fast for low frequencies. it'll be "wave-shaping" rather than "compressing the dynamics". (Not that there is anything wrong with that as "an effect".)
I've not noticed any wave-shaping distortion using the Gmulti compressor with sub 1ms attack ,
maybe Gmulti is applying sustained-compression between the attack-threshold being reached and release, ( and not telling me about it ).
Attack Sustain Release.gif
Attack Sustain Release.gif (6.26 KiB) Viewed 1656 times

steve
Site Admin
Posts: 81609
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Shorter minimum attack and release times for Compressor

Post by steve » Tue Nov 18, 2014 8:23 pm

Trebor wrote:maybe Gmulti is applying sustained-compression between the attack-threshold being reached and release, ( and not telling me about it ).
Yes, perhaps, but Gale was trying to get us to stay on topic so that we could get an actual result ;)
It may not be quite as much as you want, and I'd certainly want other improvements eventually, but do you support a tenfold reduction to the minimum attack/release times? (that's what's on the table now).
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Gale Andrews
Quality Assurance
Posts: 41761
Joined: Fri Jul 27, 2007 12:02 am
Operating System: Windows 10

Re: Shorter minimum attack and release times for Compressor

Post by Gale Andrews » Wed Nov 19, 2014 9:07 pm

steve wrote:Within the current effect:
I'm +1 for Attack Time to go down to 0.01 seconds, but -1 for going less than that.
I'm +1 for Release Time to go down to 0.1 seconds, but -1 for going less than that.
Seems reasonable. I've wondered myself why the minimum was set so high.

Will that make the slider harder to use at the current range? One change we perhaps could make quite easily to Compressor would be to add text input boxes.


Gale
________________________________________FOR INSTANT HELP: (Click on Link below)
* * * * * Tips * * * * * Tutorials * * * * * Quick Start Guide * * * * * Audacity Manual

Locked