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GT3b2 with HF Reduction, Proof of concept
QuantumKnot
post Feb 27 2004, 02:37
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I've included the HF boost reduction technique I used in QKTune beta 3.2 into the current GT3b2, as a proof of concept.

You can download the binary here:
http://www.hydrogenaudio.org/forums/index....ndpost&p=188227

The nice pre-echo handling of the original GT3b2 may be slightly worse. Start at -q 5 and compare this with the original GT3b1/GT3b2 and see whether the HF boost is there or not. smile.gif
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QuantumKnot
post Feb 27 2004, 03:52
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Group: Developer
Posts: 1245
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Member No.: 4097



QUOTE (guruboolez @ Feb 27 2004, 12:43 PM)
The second one.

When you said 'start at -q5', does it mean that we have to follow the test with -q6, -q7..., or with -q4, -q3...? (sorry if it sounds stupid, but I didn't follow HA during a whole week, and I probably miss some important informations).

That's ok. smile.gif

Theoretically, these changes should reduce HF boost in all quality ranges, even though when I tuned it in QKTune beta 3.2, I used q 4. This is because the changes are not quality-dependent.

I suggested people start with q 5 because that is where the benefits of Garf's tunings start to occur so we have (hopefully) a combination of good pre-echo handling and low HF boost. I want to see if this technique can improve other tuned encoders as well, not just my own. smile.gif

But yeah, my feeling is that it will work on all quality levels that use lossy stereo coupling (q < 6). So feel free to try it on q 1,2,3,4, which is the 1.0.1 tuning range (ie. poor pre-echo handling).

This post has been edited by QuantumKnot: Feb 27 2004, 04:01
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Posts in this topic
- QuantumKnot   GT3b2 with HF Reduction   Feb 27 2004, 02:37
- - guruboolez   I can't test it for the moment, but could you ...   Feb 27 2004, 03:31
- - QuantumKnot   QUOTE (guruboolez @ Feb 27 2004, 12:31 PM)I c...   Feb 27 2004, 03:40
- - guruboolez   The second one. When you said 'start at -q5...   Feb 27 2004, 03:43
- - music_man_mpc   QUOTE (guruboolez @ Feb 26 2004, 06:43 PM)Whe...   Feb 27 2004, 03:51
- - QuantumKnot   QUOTE (guruboolez @ Feb 27 2004, 12:43 PM)The...   Feb 27 2004, 03:52
- - QuantumKnot   QUOTE (music_man_mpc @ Feb 27 2004, 12:51 PM)...   Feb 27 2004, 03:57
- - harashin   Some results of mine. hustlejet at q5 castanets a...   Feb 27 2004, 05:20
- - QuantumKnot   Many thanks. Looks like GT3b2 is benefitting fro...   Feb 27 2004, 06:38
- - harashin   Megrim disappears now... Well, these ones include ...   Feb 27 2004, 08:11
- - QuantumKnot   Those are very encouraging results Did you hear...   Feb 27 2004, 11:34
- - harashin   QUOTE (QuantumKnot @ Feb 27 2004, 07:34 PM)Th...   Feb 27 2004, 12:28
- - QuantumKnot   Many thanks for your invaluable tests. Well, my s...   Feb 27 2004, 12:46
- - Cobra   Just make sure that Monty see this code (inform hi...   Feb 27 2004, 13:23
- - guruboolez   Iím in holidays, and I donít have access to my mai...   Feb 27 2004, 14:45
- - Big_Berny   QuantumKnot, I only want to thank you for all your...   Feb 27 2004, 21:28
- - QuantumKnot   Many thanks to guruboolez for his listening tests....   Feb 28 2004, 02:43
- - QuantumKnot   btw. Has anyone heard any change when raising the ...   Feb 28 2004, 09:33
- - nyaochi   QUOTE (QuantumKnot @ Feb 28 2004, 05:33 PM)bt...   Feb 28 2004, 11:07
- - harashin   As guys said, Brahms3 isn't hard to ABX to me,...   Feb 28 2004, 11:27
- - QuantumKnot   It's a very quiet sample and I started getting...   Feb 28 2004, 11:43
- - Biont   QuantumKnot, after all this testing, is your versi...   Mar 22 2004, 16:34
- - QuantumKnot   QUOTE (Biont @ Mar 23 2004, 01:34 AM)QuantumK...   Mar 23 2004, 00:45


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