Stereo Tool

That's the other issue, not the jumps! I think I've solved this one now too (next beta). So, the next beta shouldn't have either of these issues.

Stereo Tool 7.71 BETA017

Windows 32 bit:
Windows stand alone: http://www.stereotool.com/download/ster ... 71-017.exe
Winamp DSP: http://www.stereotool.com/download/dsp_ ... 71-017.exe
Windows 32 bit VST: http://www.stereotool.com/download/vst_ ... 71-017.dll

CHANGES:
- Check new clipper highs
- Remove "Take some shortcuts" under CPU, probably broken! And has not much effect anyway. -> Hm, no, must have been in use for the tests. Ugh... TEST to check what is better: ON (which will probably allow more sounds through) or OFF. -> Actually it does seem to work AND allow more highs through, but I don't know if that's a good thing - more tests needed!
- Added lowpass filter after clipper in non-composite mode.

OLD CHANGES:
- Another bug in latest beta - ST doesn't remember FM settings - presets from the fm list start up with stereo and rds encoding off
- Fix MPX display sample rate issue
- Fix Stokkemask in Leif's mode with Quality < 3
- Fixed problem with click sounds (reported by DJ_DOGGY). Reduced output level by 1% - you can safely increase modulation by 1% if you're using an output that's affected by this (should only be FM signal inside a plugin). If you're using the stand alone version, make sure to set the output level to the sound card no higher than 99% (-0.1 dB).
- Fix downsampling and Quality slider problems: Lower Quality setting
- Attempt to reduce effect on volume of using Leif's clipping method.
- Fix DJ Doggy's reported errors (19 kHz, junk around tones).
- Ignore frequencies above a specific frequency -> Should lower TOTAL CPU load by another 10-20% (now fully implemented except at lower Quality settings)
- Fixed the lowpass bug that was introduced in 009. Although it has probably always been there! As a side effect, the output is also slightly louder (about 0.02 dB) with no negative effects.
- Fixed distortion introduced in 009/010. Extra highs are still there though! See new 'Sparkling highs' section under Advanced Clipper -> Sound
- Fix optimizations
- Fix code #warnings
- Improved highs filtering in Clipper (both Composite and Normal); sound has more brilliance and suffers much less from ducking on loud sounds.
- Fix bug: NAN's can occur at certain input sample rates (40960 Hz among others)
- Fixed downsampling/resampling issues.
- Made several changes to the Clipper that affect the sound! Sound should now be more open en brighter (but it might have more distortion in some cases, I hope not though).
- CPU: Added 'Ignore high frequencies above'.
- Big Composite Clipper CPU load improvement: Added a new slider ('Oversampling Quality' or something like that); CPU load reduction is HUGE and effect on peak control (for values above 4) seems very small.
- Solved a number of warnings that I added in the last few days
- Some small optimizations
- New Highs Gap Protection improved, now similar in behavior to the old one. I had to add 1 extra step (slightly higher CPU load).
- Fixed problems in 771-004. Some optimizations are disabled - I need to fix that.
- Fix CPU measurement for high loads (jumps to 95% for unknown reason). -> Showing real average instead of median now. Median in dark red.
- Difference in measured CPU load is bigger than expected after CPU load measurement update - check why - DONE, is indeed big! Separate slider added to show both processing and total CPU usage.
- CPU: Clipper: Reduced default number of Bass Clipper steps from 4 to 1
- CPU: Clipper: Implemented Leif's mirrorring method for Stokkemask and optimized steps using Omnia interface, much fewer steps for same result.
- Added option to add a text in the title bar to easily recognize multiple instances.
- EXCEPTION OCCURRED IN HttpServer: Got unknown widget ID.
- CPU: Clipper: Highs gap protection: Use 1 step for non-FM.
- Check if COMMON_STATIC still improves performance, if not remove it -> Does not, removed.
- Redesigned parameter classes and moved everything around for integration with other products.
- Remove Stokkemask mode for non-composite FM clipper (it's probably not working correctly and more heavy than the composite clipper)
- Fixed small bug in Composite clipper FM overhead level compensation calculation. Might make the same setting very marginally louder (less than 0.05 dB)
- Fix crash reported in previous post
- Improved CPU load measurement (small part of code wasn't included, it is now).
- CPU: Composite clipper: Optimize Stokkemask: Skipping outer parts of window
- CPU: Composite clipper: Optimize Stokkemask: Fixed 'Skip smoothing' mode to be compliant, all other modes removed.
- CPU: Composite clipper: Optimize Highs Gap Protection (trick from Leif Claesson that he uses in the Omnia.9 - nearly no CPU load needed anymore!)
- CPU: Added some #pragma's to make compiler generate more efficient code
- RDS: Added some character conversions (Euro -> E, ` -> '). (not yet tested)
- GUI: Allow drawing scopes in half-height to have more headroom above and below.

TO FIX 7.71:
- Make Chain block (small size) based - Partially done
- Synchronization is broken in 008 (was ok in 007) - Don't see it!

TO DO 7.71:
- Turning "Bandpass" Highpass filter OFF doesn't really turn it off (!)
- VST multiple instances fails
- Make VST window bigger
- Fix Mac VST version (not recognized apparently)
- Fix Linux version (someone mentioned that it crashes after a few minutes, on Ubuntu 14.04)
- Add delay (in samples) for one of the two MPX channels to send audio to allow synchronization of 2 transmitters which use the same frequency. (John Markis)
- GUI integration for Multiband?
- Instability in compressor behavior [WesKeene, Bojcha]

TODO:
- Noise learning Micha
- Change default preset (it still uses Classic compressor etc!)
- EQ with 'standard' sliders.
- Make BS412-like graph for levels
- Add 'warm' noise before clipper (requested by Andrew Palmquist, might help with PPM as well)
- CPU: Clipper: Optimize Advanced Bass Distortion Protection

TO DO WITH LEIF:
- Clipper issues Leif / Wolf Stahl (probably the same thing) - Should be fixed now. - Waiting for reply Wolf

Hm, who reported that synchronization is broken and did work fine in beta007? I can't find it anymore, and synchronization seems to work fine here (I also tried beta008 and didn't see any problems there either).

Yes, it`s not for jumping - i mention it.
But let me test this last beta17 to see how is it.

tested for issues beta 17 .

All are there - video issue (but looks like a bit small and i guess it`s from the non-composite filter , not from Clipper itself) . Jumping noise floor too. Spike from "Ignore" is there too.


I see when Advanced clipper is enabled - L-R signal is filled with some spikes . Input signal is 0 degrees phase and if i turn Advnaced clipper off , this fill is gone. May be it`s a phase issue?! I don`t know what to think any more... If needed a video , i`m here to do it.

Now I'm confused.

Isn't "Jumping noise floor" and "Spike from 'Ignore'" the same thing? I'm not seeing it here at all anymore (and I did before). Also I ran a track through versions 7.70 and 7.71-017 and the spectrum looks nearly identical (7.71-017 is again slightly louder). Both with composite clipper and with standard clipper.

No Hans,
Spike from ignore is a single frequency that moves by moving the slider .

But jumping floor is the whole frequency band for MPX jumping ( i mean only noise floor)
Without signal is jumping too..

Here are some joker : Without input signal , spike from Ignore issue is not there , only noise floor is jumping.
When apply input signal , spike appears additionally!

The only good news is that MPX power indicator is working again

Yes everything is ok now. The clipper has the old filter response and there are no hiccups when using "ignore high freq". The is a problem though. If the ignore high freq's frequency is set near the 19khz pilot it "distorts" the pilot.

_________________
Very proud user of Stereo Tool since 2010. Thanks Hans.

My radio station
http://amradio.ddns.net

It distorts because there is a spike that you not see , but i am ! That is why i propose Hans to take some AMD and to test all my suggestions . I have 240e by Athlon II.

Correct i can see it now .. I have it set to 16khz and low pass filter is set to 15khz and there is an a tone in 16khz

_________________
Very proud user of Stereo Tool since 2010. Thanks Hans.

My radio station
http://amradio.ddns.net