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Stereo Tool 8.01 BETA
https://www.forums.stereotool.com/viewtopic.php?t=7889		 Page 22 of 43
Author:  Valiant [ Mon Aug 22, 2016 2:54 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
Hi Valiant,

I recall correctly, you're feeding left/right (2 plugs with a different signal!) audio into your transmitter which performs the stereo generation. But, somehow, it leaves the RDS that Stereo Tool (before 8.01 BETA) generates through as well. Your transmitter is generating the stereo, but is not performing any lowpass filtering on the inputs. Ok... I just realized how this can work. If the transmitter just lets the whole signal (upto 60 kHz) through for the L+R, and for L-R it probably does the same thing, then the fact that in L-R the 2 identical RDS signals gets subtracted from each other gets rid of that. If that wasn't the case you would be getting multiple copies of the RDS signal in your spectrum, but due to this that doesn't happen.

Ok, I can see that it might be useful to support this (but, the alternative with mono output with RDS is needed for many more users). I would still suggest to disable the pilot generation in your transmitter (if possible) because then you can use the composite output from Stereo Tool and - if you use the composite clipper - get a much better sound!
Hans,
I been using your software for a few years now and every time you put something new into it, it has knocked my socks off. My cheapo stereo LPFM transmitter (not switchable to mono) beats out the quality of the professional FM stations here in New York (also the opinions of several neighbors) thanks to your software. It's time I put this transmitter (which has too many limitations for me) to rest and pick up a new one that can handle your software correctly, plus then I can justify an upgrade so I can use your composite clipper!
Thanks :)
Author:  marty45714 [ Mon Aug 22, 2016 9:05 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
I realize this probably isn't the proper place to ask this, however, I am a "newb" and don't have permissions to PM you. Are you the person who came up with the Aussie presets? If so, can I get a description of each, so I know exactly what I am listening for as I listen to each of them? I'm trying to find a "big" sound like "powerhouse" but with less low end Bass. It would be nice to know what was accomplished by the creator in each preset.
Quote:
Hans,

Is it possible to add a date/time stamp in the line entry of c:\temp\StereoTool_Exceptions_Log.txt. I need to see whats happening in a timeline with VLC restart.

Timeout detected: Sound card input or output did not respond.
Restarting: NO
Timeout detected: Sound card input or output did not respond.
Restarting: NO
Author:  hvz [ Mon Aug 22, 2016 9:40 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
Crash. OK on restart.
Were you doing anything special when this happened? Or was the preset that you sent me earlier just playing? I'm asking because the address that's logged - just like last time - points to an Intel library call, which is used from dozens, probably hundreds of places in my code... so I will probably need to replicate this one here to be able to find what's causing it.

(Although - I will see if I can find a way to compile the next version without using this library, that might slightly hurt the performance but it would make the message a lot clearer).


Edit: I think I've managed to reproduce it, including your earlier 'claimbigf' error. Trying to figure out what's causing it now...

Edit #2: I'm pretty sure that I found it, I've fixed an issue (in fact in 2 different spots!) and so far I've been unable to reproduce it. Will run a new build now. The problem was caused by the memory reduction that I performed a few beta's ago. When I did that I have added a lot of checks (to make sure that I wasn't writing outside of my memory), however, it's not possible to add similar checks for reading. And that was what failed. In 2 spots I was reading twice as much data as I should - which also only caused a problem in the stand alone version, and only if you're using 'Bass Protection' in the clipper which is kinda deprecated (it still works, but almost no preset uses it - I'm not removing it because you can also use it to change the bass sound a bit).
Author:  hvz [ Tue Aug 23, 2016 1:44 am ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
Hans,
I been using your software for a few years now and every time you put something new into it, it has knocked my socks off. My cheapo stereo LPFM transmitter (not switchable to mono) beats out the quality of the professional FM stations here in New York (also the opinions of several neighbors) thanks to your software. It's time I put this transmitter (which has too many limitations for me) to rest and pick up a new one that can handle your software correctly, plus then I can justify an upgrade so I can use your composite clipper!
Thanks :)
It seems unlikely that you would beat the professional FM stations in New York with a basically broken transmitter without using composite clipping, at least without overmodulating. If you get a good transmitter and start using composite clipping, things will be VERY different!
Author:  hvz [ Tue Aug 23, 2016 2:27 am ]
Post subject:  Re: Stereo Tool 8.01 BETA
Fixed:
- Crash reported by multiple people fixed.
- Claimbigf failed once ("Claimbigf failed: In use!") -> Added extra checks, should warn if it happens again. I'm guessing it was triggered by some other bug. --> Was caused by crash
- Split presets in repair/process

Windows 32 bit:
Windows stand alone: http://www.stereotool.com/download/ster ... 01-024.exe
Winamp DSP: http://www.stereotool.com/download/dsp_ ... 01-024.exe
Windows VST 32 bit: http://www.stereotool.com/download/vst_ ... 01-024.dll

Known issues:
- Absolute Highs display broken. Only in HQ version. -> Weird only on Koek pc. Check tomorrow. Ah, only weird if there's real audio, not on background noise there. Maybe stereo effect? Still unable to reproduce on my pc... Copy settings. -> Was clipping in the Winamp output which was fed into VAC. Enabling the Declipper made it a lot better!
- Add agc drive, remove Pre Amp (not remove, default is already 1, so never mind).
- Show link to web interface, hide everything else! (Password)
- Test if clock moves in right direction (that could be the gaps that are reported) --> Clock jitter calculation effect removed for Stereo Tool (not for MicroMPX). I hope this fixes the issue. Waiting for feedback.
- White list IP's?
- Thimeo.js add DISABLED displays
- CHECK CRASH with VLC - VLC related??
- Make new separate Presets class -> Export still needed?

- Generic plug-in (not posted) FM output to host doesn't work.

DONE:
- VLC Input broken (resampler is BAD, should probably be disabled in this case?) - Also sound cards should collect MUCH more data before starting to resample.
- Turning pre-emphasis on/off give a big glitch! - Was caused by Phase Delay time shift triggered by having 'Ignore high frequencies' on.
- CPU load: Test if it's indeed lower in 021. Quick test: 45.5% to 44.8%. So, yes.
- Check that FM output can still be L/R stereo if Stereo/RDS encoders are disabled -> No. Needs to be fixed. -> Does what it should do now.
- Fixed some potential crashes - not sure if the one that was reported by 2 people is included
- Make better resampler! Test correct direction! Factor = input/output
- Quality 100-110 is not great, rest is.
- SSB DSB mode in enum, check if it works
- Enum 50/75 add OFF, encode Mu as non-HTML mu
- Add Declipper main view
- Bad pilot/RDS at certain Quality settings, only if Threads==1. Seems ok at high Quality settings... Different in HQ and non-HQ builds. Ah no, sometimes also at Threads > 1. Display only though. Ah, happens when Normal output buffer <= FM buffer size and FM output is disabled but I am displaying FM output. Must be looking to close to the point where I'm writing in OldSamples. (Correction for Normal Output is applied to FM output, probably?). O :( Caused by synchronization issues between threads... And at different numbers of threads everything is broken (note: Only scopes... but all of them!). I think we need a position in the display per thread index to solve this. Then the existing code might work again without changes. (Except that it needs to be triggered from the Framework thread).
- Weird time shift in bottom waveform (or in top waveform?) they don't stay synced at 10 second view size. -> Fixed with bad pilot fix
- Problem with threads is fixed, but still needs to be synchronized with the rest of the GUI and sound card (too much delay now on scopes).
- Phase Rotation before/after doesn't update
- FM Analyser was broken -> mostly fixed, some glitch still present after sound card restart on 2nd channel. -> Ignoring for now...
- Add Delossifier difference, also for Stereo, True Bass & Absolute Highs & Bass Boost, add Declipper, Equalizer, Bandpass, Clipper -> No, only Bandpass and maybe Clipper.
- Smooth preset switching: No more hiccups (if the same filters are enabled) and also faster.
- Quality between 100 and 150% improved (around 101-110 not great yet)
- Connection lost issue web gui
- Add window to AGC (wednesday)
- Make 'HEAR'/'Till here' work (wednesday)
- Test tones are broken (wednesday)
- Make output waveform visible again for non-FM output. -> Appears to be ok now.
- OS_COPYTHREADPRIOTO(td[ch].process_thread) (wednesday) - Was already ok
- Display CPU usage for LQLL threads (tuesday)
- Set affinity for LQLL (tuesday)
- Display needs to be updated for all processing threads (tuesday)
- Display updates must happen in correct order (weird noise jumps otherwise) (tuesday) -> No, was related to updates for all threads
- Don't calculate FM signal if FM is disabled (causes extra display in output too) (tuesday)
- Large pilot phase difference found (tuesday) Fixed with workaround. Reason still unknown.
- AGC gate in bars like compressors - now also in the normal versions
- Displaying CPU usage for all (primary) cores if you select more than 1 thread.
- Reduced memory usage to below what version 8.00 used!
- Gain works again
- AGC gate in bars like compressors
- Low Quality Low Latency monitoring (stand alone version) is working again
- Restart server if all clients are full for a while?
- Delossifier web display added
- Type IP in web site
- Quality below 100% in HQ build error

Later:
- Perform latency measurements
- Generate UIDs and use link
- Password for login?
- Attempt Wes Keene's Feedback mode (see Facebook chat)
- Auto-determine best latency/affinity settings
- New idea: FM stereo trick might reduce MP3 artifacts as well! So add it to streaming output.
- Run as a service
- TODO: Add exception if ignoring too high VST parameter numbers (Audacity bug! -> Was fixed in later Audacity version, never mind).
- Websockets? Later
- However, MediaMonkey was quite insistent I upgrade to the later version 4.1.13.1801, so I did, and now what is happening is the Declipper screen is whited out and can't be configured, though it still works with the last set settings.
- Also when I close MediaMonkey, the Declipper screen hangs (everything else closes), and when I do a forced close, Windows says it's MediaMonkey hanging.
- Still a hack (enabled with a special setting) is needed for some people who want RDS with stereo output... It doesn't make any sense but on some transmitters that apparently works... However I only know of one person who uses this. Not urgent now, this person can use an older version for now.
Author:  Chris [ Tue Aug 23, 2016 12:57 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
something wrong with this last beta.. i have Gaps, at all pressets.
Author:  dj_szpajda [ Tue Aug 23, 2016 1:27 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
I have to crashes with last beta and VLC input:
- 1st clicked bypass few times and ST just closed
- 2nd also clicked bypass few times and get blank not responding window

win10 64bit and latest VLC
Author:  hvz [ Tue Aug 23, 2016 6:06 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
I have to crashes with last beta and VLC input:
- 1st clicked bypass few times and ST just closed
- 2nd also clicked bypass few times and get blank not responding window

win10 64bit and latest VLC
Do you know if it's related to VLC?
Author:  hvz [ Tue Aug 23, 2016 6:07 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
something wrong with this last beta.. i have Gaps, at all pressets.
What does 'gaps' mean? I don't hear anything bad, and as far as I know I haven't changed anything that could break something. Is 023 ok? Does restarting help?

Edit: Does "gap" mean that you get a period of silence after - say - 20 or 30 minutes or so? If so I might know what it is.
Author:  dj_szpajda [ Tue Aug 23, 2016 6:09 pm ]
Post subject:  Re: Stereo Tool 8.01 BETA
Quote:
Quote:
I have to crashes with last beta and VLC input:
- 1st clicked bypass few times and ST just closed
- 2nd also clicked bypass few times and get blank not responding window

win10 64bit and latest VLC
Do you know if it's related to VLC?
I don't know, because tried only in that case..
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