Stereo Tool
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Stereo Tool 7.03 BETA
https://forums.stereotool.com/viewtopic.php?t=4448		 Page 13 of 102
Author:  gpagliaroli [ Tue Jan 22, 2013 3:05 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
I want to share this paper, I hope can help ... :)
http://www.elec.qmul.ac.uk/people/josh/ ... ES2012.pdf

Edit:
Add 2 links more
http://www.eecs.qmul.ac.uk/~dimitrios/A ... design.pdf
http://www.elec.qmul.ac.uk/digitalmusic ... index.html
Author:  hvz [ Tue Jan 22, 2013 3:51 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Quote:
Something is wrong with compressor. I Think knee. but it's connected with threshold.
I have non-flat release only with lower thresholds,around -6 - -8dB max. Also is strange that is same without using knee.
and that should be simple limiter (peek level depend only on threshould).
Knee is working now (next beta). You have the 'Dynamic release to 0 dB' set to 0? If it's set to 1 you'll often see an abrupt end in rise.
Author:  Bojcha [ Tue Jan 22, 2013 3:53 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Quote:
Knee is working now (next beta). You have the 'Dynamic release to 0 dB' set to 0? If it's set to 1 you'll often see an abrupt end in rise.
With that to 1 release is always flat.
Also thresholds under -8 (-12, -15..) gives flat reelase, no metter what.
But we'll see with next beta then.
Author:  hvz [ Tue Jan 22, 2013 4:53 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Didn't have time to build everything but here's the stand alone version with proper knee (and also far more efficient).
http://www.stereotool.com/download/ster ... 04-016.exe

Will look into release behavior now. If it's flat it will still be flat with this knee, because the knee doesn't affect the release.
Author:  hvz [ Tue Jan 22, 2013 5:16 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Bojcha, can you tell me which settings you are using? With 'Dynamic release to 0 dB' set to 0 I'm not getting a flat release. Tried with thresholds between -40 and -6, with and without knee, different ratios, feedforward and feedback. It all looks smooth. Note: I'm using "Smart RMS" detection. With peak you *do* get a nearly straight line. If you want somewhat peak-like behavior without that try the new 'Smart RRMSS' mode.
Author:  Bojcha [ Tue Jan 22, 2013 6:07 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Default settings in beta16 - http://i.imgur.com/T3IBha3.png
More threshold (~-18) - http://i.imgur.com/Lv2VXSc.png

testfile 0dB sine, then -8dB.
Author:  hvz [ Tue Jan 22, 2013 6:42 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Quote:
Default settings in beta16 - http://i.imgur.com/T3IBha3.png
More threshold (~-18) - http://i.imgur.com/Lv2VXSc.png

testfile 0dB sine, then -8dB.
But default settings is with the Dynamic release to 0 dB set to 1!
Author:  Bojcha [ Tue Jan 22, 2013 7:02 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Quote:
But default settings is with the Dynamic release to 0 dB set to 1!
Yes, and also to 0 is just bit fixed and with lower threshold again more flat.
And btw, knee is still not working.
Author:  hvz [ Tue Jan 22, 2013 8:26 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
@Bojcha:
Knee:
- Input 1000 Hz tone, rising level.
- Loaded defaults
- Threshold to -16 dB
- Ratio to 1000:1
- Feedforward (so feedback to 0%)
- Top: Knee 0 dB. Bottom: Knee 10 dB. Output is normalized.

Image

Looks fine to me?
Author:  hvz [ Tue Jan 22, 2013 8:32 pm ]
Post subject:  Re: Stereo Tool 7.03 BETA
Quote:
Default settings in beta16 - http://i.imgur.com/T3IBha3.png
More threshold (~-18) - http://i.imgur.com/Lv2VXSc.png

testfile 0dB sine, then -8dB.
0 dB & -8 dB, default setting, set "Dynamically release to 0 dB" to 0, threshold to -18 dB:

Image

Also looks good to me?

I've also tested -54 dB and it looks nearly identical.
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