Stereo Tool
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Stereo Tool 6.10
https://forums.stereotool.com/viewtopic.php?t=3065
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Author:  hvz [ Sun Jun 05, 2011 4:35 am ]
Post subject:  Re: Stereo Tool 6.10

Hm, just a wild idea here:

Actually, the intended end result of Natural Dynamics is NOT an increased output level, but softer sounds between spikes. For example, if I play Lady Gaga - Alejandro, and use aggressive enough Multiband settings (limiting, fast enough down speed / clipping), then the output level of the bass kicks is only slightly louder than before, but the sounds in between are softer. Which gives a lot more dynamics.

Now if you want to use not too aggressive Multiband settings, you're in trouble.

So here's an idea: What if I feed the output of Natural Dynamics through an extra Multiband filter that limits the sound at the original input level. Then all the mentioned issues - way too loud S sounds, loud voices etc. - would be gone, and the original frequency content, at least that of the loudest sounds, would be restored.

This audio could then be fed into the next processing steps (including AGC - since the loud voices issue is gone).

Author:  Bojcha [ Sun Jun 05, 2011 4:44 am ]
Post subject:  Re: Stereo Tool 6.10

That's similar what i said pages ago. :D
Just for current multiband. So if highs, for example, is at some level, amount of boosting will be for 'that' level.
Only problem is that somethig like good compressor should be after MB. This one.. nah.

But maybe you rhink on extaMB in 'hiden' way ?

Author:  Brian [ Sun Jun 05, 2011 5:07 am ]
Post subject:  Re: Stereo Tool 6.10

Quote:
- Declipping filter: Optimize tilt detection for performance
- Declipping filter: Optimize peak matching for performance
You also need to optimize Natural Dynamics. Currently it is more expensive than Declipping at default settings...meaning I'm comparing default settings for both of them. Declipping gets me to around 75-80% as viewed through Task Manager, while Natural Dynamics runs 80-90%. That's with them individually. If I enable them both, they stall out the system. From what I looked into a few weeks ago, what happens is Winamp's in_mp3.dll ends up cycling waiting for the next chunk of data.

Author:  hvz [ Sun Jun 05, 2011 12:21 pm ]
Post subject:  Re: Stereo Tool 6.10

Quote:
So if highs, for example, is at some level, amount of boosting will be for 'that' level.
That's not what I meant; what I meant was that there is in the end no boost - the audio level can only decrease, not increase...

Author:  hvz [ Sun Jun 05, 2011 12:22 pm ]
Post subject:  Re: Stereo Tool 6.10

Brian, at the very least try turning the 'transients' checkbox off. That should make a big difference.

Because I'm now supporting boost effects between channels, the CPU load is also a lot higher - some people seem to like it, others don't... So I'm not sure yet what I can do with it.

Author:  Vortan [ Sun Jun 05, 2011 12:23 pm ]
Post subject:  Re: Stereo Tool 6.10

Does noone get these interrupts while music playing like me? Am i really the only one? Or maybe you all dont use Winamp?

Author:  hvz [ Sun Jun 05, 2011 1:14 pm ]
Post subject:  Re: Stereo Tool 6.10

Vortan, can you check the coy load when this happens? That would be my first guess. The cpu usage of the declipper is higher when there is more clipping!

Author:  eldoradofm [ Sun Jun 05, 2011 1:20 pm ]
Post subject:  Re: Stereo Tool 6.10

I just compared stand alone version 052a with version 53.
I hear a difference in the natural dynamics when i listen to the DIFF, why is this, shouldn't they sound the same?

EDIT: Could it be that 052a and 052 sound the same with the stand alone version?

Author:  Vortan [ Sun Jun 05, 2011 1:36 pm ]
Post subject:  Re: Stereo Tool 6.10

Quote:
Vortan, can you check the coy load when this happens? That would be my first guess. The cpu usage of the declipper is higher when there is more clipping!
What do you mean with "coy load"? It happens whithout declipper, without dynamic booster, without bass boost, without agc, without multiband clipping, without final limiter..... it is just there. Sometimes it appears after 1 minute, sometimes after 2 or 3 minutes, depending on the song which is playing. I tried to hear which "form of music" could force these interrupts, but it happens with jazz or pop as well as metal. I noticed different cpu core using, beta 46 for example was running on the 3. core with only 10%, actual betas running on 1. and 4. core, a song switch does overall load increase to 30%, mainly on the 4. core.

Author:  eldoradofm [ Sun Jun 05, 2011 2:05 pm ]
Post subject:  Re: Stereo Tool 6.10

I just tried the winamp versions. Here i also hear more frying sounds with version 053 then 052a when listening to the DIFF.
@Vortan "coy load" = cpu load but Hans got his fingers wrong on the keyboard.

EDIT: I also hear drops in music now with winamp.

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