Stereo Tool
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Stereo Tool 6.31 BETA
https://forums.stereotool.com/viewtopic.php?t=4209
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Author:  hvz [ Mon May 07, 2012 10:14 am ]
Post subject:  Stereo Tool 6.31 BETA

A few weeks ago Bojcha reported the following issue: Bass sounds better without 'Advanced Bass Distortion Protection' enabled.

I found a bug in the code (or actually a few bugs) and I've fixed those. The result is the version linked below.

One warning though: The highs are affected by the louder bass. I discovered that there's a bug in the highs filtering (in version 6.20 and above), that's probably hurting the quality of the highs (and at least it makes them softer than they should be) - intermodulation distortion is happening TWICE, which is of course very bad. If I fix this bug though, the lows and mids are ducking again when there are loud highs. I think I know how to fix it (clip the amount of ducking), but it's not implemented yet.

In this version, in my measurements I saw an increase of 1.4 dB in the bass region (biggest boost is around 100-150 Hz), and a drop of 0.2 dB above 3700 Hz.

EDIT: Oops, I see that I've compiled a version with drops instead of lower highs! Well, the next version will have a configurable maximum drop level.

Stand alone: http://www.stereotool.com/download/ster ... 31-001.exe
DSP: http://www.stereotool.com/download/dsp_ ... 31-001.exe
VST: http://www.stereotool.com/download/vst_ ... 31-001.dll

Author:  hvz [ Mon May 07, 2012 8:33 pm ]
Post subject:  Re: Stereo Tool 6.31 BETA

Configurable highs level added (see bottom right of Loudness panel). At 0%, it behaves the same as before (which means you'll loose some highs due to the louder bass). At around 6% the amount of highs is roughly identical to that of version 6.30. At higher values you'll get more highs, but the other frequencies will drop a bit. This may sound better though (haven't tested thoughoughly yet).

Stand alone: http://www.stereotool.com/download/ster ... 31-002.exe
DSP: http://www.stereotool.com/download/dsp_ ... 31-002.exe
VST: http://www.stereotool.com/download/vst_ ... 31-002.dll

Author:  carlaum1 [ Tue May 08, 2012 12:14 am ]
Post subject:  Re: Stereo Tool 6.31 BETA

Whoa, what a quick beta... I hope the presets get updated this time. :)

Author:  athl0n [ Tue May 08, 2012 3:48 am ]
Post subject:  Re: Stereo Tool 6.31 BETA

Although this beta sounds very clean I can't honestly hear any difference between "Highs Priority" slider set at 0% or 100% :? Maybe my hearing is going?

Author:  Brian [ Tue May 08, 2012 9:19 am ]
Post subject:  Re: Stereo Tool 6.31 BETA

Quote:
Although this beta sounds very clean I can't honestly hear any difference between "Highs Priority" slider set at 0% or 100% :? Maybe my hearing is going?
Mine too...

@Hans - Is this a FM broadcasting and/or pre-emphasis and/or oversampling-related issue?

Author:  hvz [ Tue May 08, 2012 10:52 am ]
Post subject:  Re: Stereo Tool 6.31 BETA

The effect is definitely a lot bigger with pre-emphasis. Even then the effect is small though.

Athl0n: Do you think that it sounds cleaner than 6.30? Because I also received a complaint about 'weird sounds' that were present (haven't heard them myself yet), and I know now that I did some things wrong in this new version - I'll have to fix those.

Author:  NRG [ Tue May 08, 2012 4:49 pm ]
Post subject:  Re: Stereo Tool 6.31 BETA

Hi Hans,

improved high frequency is remarkable, but also on the low frequencies ;)
but I feel in some cases strange "popping"
is it possible? (such as digital clicks)

Author:  hvz [ Tue May 08, 2012 5:49 pm ]
Post subject:  Re: Stereo Tool 6.31 BETA

Those may be the "weird sounds" that someone (Bojcha) mentioned - not sure though.

I'l currently redesigning it again because this new design also has some weird effects. Will probably be finished tomorrow, maybe that will fix this.

Author:  NRG [ Tue May 08, 2012 5:52 pm ]
Post subject:  Re: Stereo Tool 6.31 BETA

ooookkk !!!

THX

Author:  hvz [ Wed May 09, 2012 3:00 am ]
Post subject:  Re: Stereo Tool 6.31 BETA

Ok, I'm apparently missing something obvious in the bass clipping (and fixing that would *really* improve the quality). Still thinking......

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