Stereo Tool
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Stereo Tool 7.85 BETA
https://www.forums.stereotool.com/viewtopic.php?t=7262		 Page 49 of 59
Author:  hvz [ Sun May 22, 2016 9:51 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
Wow, L-R spectrum asymmetry sure deteriorates reception.. Just tried with 7 Wonders in which i enabled L-R asymmetry with full steps and 15% max asymmetry (and also maxed every other strictness and CPU setting that can be found within Stereo Tool, it does not max out my CPU (i7 4790k)).

Intro of "Jestolive - Can We Live" sounds horrible (audible distortion) when received through Virtual Audio Cable to MPXtool. Disable L-R asymmetry and the weird additive is taken away :lol:
Hm, that's actually very strange - MpxTool should *not* see any negative effects. Are you sure that there's not something wrong such as a mismatch in sample rate?

I can't find this track anywhere: https://www.youtube.com/results?search_ ... an+We+Live
Author:  \_/ [ Sun May 22, 2016 10:11 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
https://www.youtube.com/results?search_ ... an+We+Live
Author:  GuntherM [ Sun May 22, 2016 10:14 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
@GuntherM: With the same settings (Delossifier disabled), I see 36% CPU load reported in Stereo Tool both in 7.84 and in 7.85-BETA071.

What was your old CPU load?
CPU load was always around 48 to 53% with older versions, I must say with upgrading to Win10 audio drivers gives problems on this system.
On my playout system also with Win10 I don't have these problems, didn't try out ST there to be honest, it's a Q2core with 8Gb RAM, maybe I should try it on that system?
Author:  Modulator [ Sun May 22, 2016 10:57 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
Quote:
Wow, L-R spectrum asymmetry sure deteriorates reception.. Just tried with 7 Wonders in which i enabled L-R asymmetry with full steps and 15% max asymmetry (and also maxed every other strictness and CPU setting that can be found within Stereo Tool, it does not max out my CPU (i7 4790k)).

Intro of "Jestolive - Can We Live" sounds horrible (audible distortion) when received through Virtual Audio Cable to MPXtool. Disable L-R asymmetry and the weird additive is taken away :lol:
Hm, that's actually very strange - MpxTool should *not* see any negative effects. Are you sure that there's not something wrong such as a mismatch in sample rate?

I can't find this track anywhere: https://www.youtube.com/results?search_ ... an+We+Live
Sorry! I typoed it... :D

Here are links to two FLAC-files, one consist the intro without asymmetry, the other with asymmetry enabled:
http://www.modu.fi/snd/jestofunk_7wonders_noasym.flac
http://www.modu.fi/snd/jestofunk_7wonders_l-r_asym.flac

EDIT: False alarm, hit me.
Author:  hvz [ Sun May 22, 2016 11:49 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
Those files contain audio upto 22 kHz which shouldn't be possible at all. So, I'm not sure what you did but this doesn't look like a demodulated FM signal!

Will try encoding the YouTube video now here with both methods and then decode with MpxTool.

Edit: No, I don't hear it. My test: Run MP4 file (downloaded from YouTube) through Stereo Tool, and the output through MpxTool. Sounds clean, no crackle. So I think your sample rates are set wrong.

Having said that, I do see that when pilot locking fails only slighlty, I do start hearing these crackles (tested with the new MPX analyzer that I recently added to Stereo Tool). Which confirms something that I have thought (but hoped wouldn't be the case): I will probably have to use some filtering on the quadrature signal (this is annoying because it makes things more complex, it increases the CPU load, and it will slightly reduce the effect of this new setting). However, I only need to do that if non-matching pilot phase actually happens in reality, and I don't know if it does. Modern car radio's will switch to mono when they can't get a good lock, but I don't know about older analog radio's. This is a good test track for that. (But I should probably run some test tones through it and test on multiple receivers).
Author:  nunoserra [ Mon May 23, 2016 12:23 am ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
Quote:
Quote:
Wow, L-R spectrum asymmetry sure deteriorates reception.. Just tried with 7 Wonders in which i enabled L-R asymmetry with full steps and 15% max asymmetry (and also maxed every other strictness and CPU setting that can be found within Stereo Tool, it does not max out my CPU (i7 4790k)).

Intro of "Jestolive - Can We Live" sounds horrible (audible distortion) when received through Virtual Audio Cable to MPXtool. Disable L-R asymmetry and the weird additive is taken away :lol:
Hm, that's actually very strange - MpxTool should *not* see any negative effects. Are you sure that there's not something wrong such as a mismatch in sample rate?

I can't find this track anywhere: https://www.youtube.com/results?search_ ... an+We+Live
Sorry! I typoed it... :D

Here are links to two FLAC-files, one consist the intro without asymmetry, the other with asymmetry enabled:
http://www.modu.fi/snd/jestofunk_7wonders_noasym.flac
http://www.modu.fi/snd/jestofunk_7wonders_l-r_asym.flac

Tracks shouldn't be at 44.1Khz
Author:  hvz [ Mon May 23, 2016 8:09 am ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
CPU load was always around 48 to 53% with older versions, I must say with upgrading to Win10 audio drivers gives problems on this system.
On my playout system also with Win10 I don't have these problems, didn't try out ST there to be honest, it's a Q2core with 8Gb RAM, maybe I should try it on that system?
So are you saying it went up from around 50% to 90%? Can you send me your settings? I was getting 36% with both 7.84 and 7.85beta071, with a complete preset with composite clipper.
Author:  GuntherM [ Mon May 23, 2016 3:49 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
Quote:
Quote:
CPU load was always around 48 to 53% with older versions, I must say with upgrading to Win10 audio drivers gives problems on this system.
On my playout system also with Win10 I don't have these problems, didn't try out ST there to be honest, it's a Q2core with 8Gb RAM, maybe I should try it on that system?
So are you saying it went up from around 50% to 90%? Can you send me your settings? I was getting 36% with both 7.84 and 7.85beta071, with a complete preset with composite clipper.
Yup from HD to FM and almost everything used, repair, processing and clippers, as far I could in the last section.
Note that while ST resources gone from 48-50% to 93-94% while CPU is only 31% loaded and memory only 24% in use (in taskmanager)

Sent you a FM .sts file in PM, or is it the ini file you want?

I must say, those overview screens are great to use, love them. a keeper.

I just can't follow the loads from CPU vs Stereo Tool. Maybe I have to watch my BIOS if there is a wrong setting?
Author:  camclone [ Mon May 23, 2016 6:09 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
There is a bug in some ASUS bios versions with i3 i5 i7 cpus from my experience.

It does not have to do with stereotool.

I had a similar problem with an asus bios and an i7 ,

with intel virtualization enabled my cpu on windows was going full very easy

something similar had happened many years before with speedstep technology...


It depends with your BIOS . ( and sometimes with sound drivers or intel chipset drivers ?? !! )

play with intel virtualization setting and speedstep setting ( if there is any ) on bios.
Author:  GuntherM [ Mon May 23, 2016 10:00 pm ]
Post subject:  Re: Stereo Tool 7.85 BETA
It is a MSI game motherboard BIG BANG X-power a i7-950 CPU at 3.07Gb, 12Gb Corsair XMP RAM
HD is a SSD Kingston via SATA3 6Gb/s
Here are some settings in BIOS...
Image

I disabled overclock protection, no problem because CPU is cooled with watercooling.
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