Stereo Tool

I have been seeing loads of exceptions and restarts in the last beta(s). A tad frustrating.
Not entirely sure what's going on. I thought the error may have been related to the preset/s but things have been a bit erratic to be entirely sure.
Using beta 019 on Win 7 32 bit at present - i3 2130 CPU.

Edit: The beta seems to not be running at all well for me. Hans, I've sent you a pm with some details. Hope it helps.

Can you post the error message? Thanks!

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The Power of Sound

''Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination, and charm and gaiety to life and to everything.'' - Plato

Yup. Looks like they are all caused by too aggressive compiler optimizations. Will go through them and fix them - thanks!

Just loaded beta 19 on my Windows 10 test machine with an i7 Q720 CPU. Running great so far.

New build is running. I should have fixed all but one of the reported crashes - I'm expecting that the remaining crash is caused by an earlier crash. Will upload the new version asap. The address in PowerSound's image is also listed in 2Sense's file, which is good news (I'd rather have multiple people reporting the same crash than different people reporting different crashes, this starts to look like most things are fixed now).

Just a remark about why there are so many errors now.

I switched from a compiler from 2007 (!) to a brand new one. For each loop in my code (there are over 3000 of them) I have had to decide whether the compiler may use very aggressive optimizations (which make some assumptions that I'm responsible for fulfilling). For about 700 of these 3000 loops I have indicated that it may use these very aggressive optimizations. Now, the compiler might still decide that it's unable to optimize this aggressively, in which case an incorrect decision from me would have no effect.

Until now, when I wrote new code I made these decisions, and they were usually correct - but there have been cases in the past where beta's crashed on some systems.

By switching to the new compiler, there are probably more places where it decides that it can use these assumptions and aggressive optimizations. So far, based on crash reports in the last few beta's, I have found 6 places where I have made a mistake. Out of 700 that doesn't seem so bad, but of course if you run into it the program is unusable until it's fixed.

BETA020:

Crashes reported by 2Sense and PowerSound should be fixed.
(One crash reported by 2Sense I don't understand, I'm guessing for now that it was a problem caused by an earlier crash).

Winamp and 64 bit version builds are running.


Windows 32 bit:
Windows stand alone: http://www.stereotool.com/download/ster ... 51-020.exe
Winamp DSP: http://www.stereotool.com/download/dsp_ ... 51-020.exe

Windows 64 bit:
http://www.stereotool.com/download/ster ... 51-020.exe (NOTE: NOT AN INSTALLER - this is the executable).

CHANGES:

TO DO:
- Improve web interface further.
- Fix RDS clock on 64 bit
- Add presets
- Add speed setting for Stokkemask


OLDER:
Stokkemask CPU load optimized for all settings.
Bug in Stokkemask and Multipath Clipper fixed that makes it work better.
- Added faster processing paths for SSE3, SSE4.1/2, AXV and AVX2.
- Optimized Stokkemask filter (so far only in Faster mode, will optimize the other modes later). Filtering is slightly less good, although I don't see it in the measurement results.
- Changed band steepness minimum values for multiband from 6 to 3 dB/octave. (Ooh. I hope i changed MB and not ND...).
- Added a bunch of new presets. Some need to be updated again. And the Jeroen Platenkamp HvZ mod version is currently identical to the original.
- Web interface drawing of equalizer fixed
- Crash when loading some presets fixed
- Bug fix: Prelimiter acted up at certain latency settings.
- Web interface dragging fixed.
- Bug that caused sliders and top menu to stop working fixed.
- Calculation of FM MPX left/right peaks was wrong when using Composite LIMITER, fixed.
- Made left/right display green (with above 100% yellow) as suggested by mpex2006km.
- Improved web interface a lot more ("1000" is gone, more displays are working, right part of display auto-scales to device width)
- Fix MPX Power calculator
- Fix resetting of tilt calibration when loading a preset
- Add volume meters which show > 100% modulation for IBC demo
- Bug fix: Single-channel file in plugin version caused crashes when using the composite clipper.
- Compressor/limiters: Moved limiter before compressor. This slows down the attack speed when limiting occurs, which gives a more stable sound.
- Improved web interface. (Not yet finished).
- There's some weird sound audible when you enable 'DIFFERENCE' mode. Even if nothing happens. This means that the audio is somehow damaged. It's worse at lower latency settings. FIXED
- Make highs clipping level configurable. DONE
- Fix composite clipper mode. DONE
- See a few posts up. I've now added 2 sliders that can be used to reduce the effect when there's not clearly a tone present. Tones only reduces the effect when there isn't a single tone that clearly sticks out - basically it checks how loud the strongest band is vs. the total of all bands, and adjusts the effect based on the result of that calculation. Since there are almost always also other tones present, setting this too high will even reduce tones that do clearly stick out. Tones threshold can be used to turn the filter off completely if there isn't a single tone that clearly sticks out (it makes the slope of the Tones only effect steeper).
- Changed some things back to how they were in version 005 - Bojcha reported (and I confirmed) some weird artifacts in version 006. If you enable METHOD2 you get the 006 behavior, that's for my own tests and I will remove METHOD2 later.
- Added Smother filter. The higher you set it, the more it will ONLY affect the loudest sounds. If you have multiple loud tones (for example a bass and a loud voice), setting this very high might cause only one of the two to be effected - setting it very low will affect everything though.
- Added multiband pre-limiter/phase optimizer to the Advanced Clipper.
- Trying a different multiband limiter in the Advanced Clipper. This time without phase optimizer. I'm very curious which version you guys prefer!

Using lower limiting levels lowers the loudest sounds in the mix. Since bass is often the loudest sound it tends to reduce bass more than other sounds.

DSP beta018 running fine, no FM, own web-preset,
Win7 64,
AMD A8-3870 4 core,
MMX (+), 3DNow! (+), SSE, SSE2, SSE3, SSE4A, AMD 64

Thanks!

Audio still stops after some time.
WinXP, Julli@. FM output, ASIO...

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control point
control point2

Standalone Beta 020 running within problems, Preset KnockOut,
Win7 32 bits
Sound Card No-ASIO
AMD Athlon L325 dual core (CPU 65-70%)

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by GAP
"Less is More" (Bob Katz)