Stereo Tool

Latest version - Beta 038 (April 15 2022)

Downloads

• Stereo Tool - Windows 32-bit standalone
• Stereo Tool - Windows 64-bit standalone
• Stereo Tool - VST2 32-bit
• Stereo Tool - VST2 64-bit
• Stereo Tool - VST3 32-bit
• Stereo Tool - VST3 64-bit
• Stereo Tool - Winamp DSP 32-bit
• Thimeo ST-Enterprise
• Thimeo ST-Enterprise 32 bit (not an installer, at most 2 instances)
• Relay (runs directly, not an installer)
• Thimeo WatchCat
• Stereo Tool - macOS standalone
• Stereo Tool - x86/64 Linux 32 bit ALSA standalone
• Stereo Tool - x86/64 Linux 64 bit ALSA standalone
• Stereo Tool - x86/64 Linux 32 bit Jack standalone
• Stereo Tool - x86/64 Linux 64 bit Jack standalone
• Stereo Tool - ARM Linux 32 bit standalone (BETA035)
• Stereo Tool - ARM Linux 32 bit Jack standalone (BETA035)
• MicroMPX - Windows encoder
• MicroMPX - Windows decoder
• MicroMPX - ARM Linux 32 bit encoder
• MicroMPX - ARM Linux 32 bit decoder
• MicroMPX - ARM Linux 64 bit encoder
• MicroMPX - ARM Linux 64 bit decoder

Changes/bugfixes

• DeReverb is still missing from Repair section
• Legacy AGC meters missing
• Update version numbers
• Add/update presets
• Fixed detilted waveform in MicroMPX Decoder
• Fix CPU & Wideband compressor displays in old GUI

TODO's

• RELEASE
• WatchCat license issue (Mathijs)
• MicroMPX name/description field for each encoder/decoder
• MicroMPX return time stamps in ENCODER library
• MicroMPX+ builds (library)
• Fixed trigonometry bug in optimized demodulator in MicroMPX decoder library
• NEW GUI Windows/Linux beta's!!!
• MacOS multi-instance TODO: new-gui build
• MicroMPX: Pi image: Add updating with recovery like in STX, sound card configuration, upload backup file, rebooting to GUI, temperature, CPU load. BUSY
• MicroMPX: Switching between streams without hiccups (wait for keyframe, set buffer positions at the correct location)
• ST-Enterprise: Support streaming input
• ST-Enterprise: Support streaming output
• MicroMPX: Add 2040 as parameter in feed function in lib, check sample number always > 0 and <0 for FEC, maybe add sync mode without actually calling sync, + function to read sync value
• Command line version: Add support for mono files (and 24 bit too maybe)
• Bojcha: changing Latency 4096 to 2048 and back, makes error: claimbigf: inuse! Same when changing Audio quality.
• WatchCat: Check OGG encoding, seems to be VBR, not configurable? (Sjoerd W)
• Distortion caused by limiters in MB's causes issues if not using Hear. See post + preset Bojcha. Not a new issue.
• Setting "Clip" in Multiband 1 (check others) to "off" lowers output level by 1 dB!
• Speech scrambler
• Weird audio in L-R section after Stokkemask clipping with silence as input (at -108 dB at 16 kHz, so not an urgent issue)
• Pilot has a harmonic (?) at 62100 Hz after 16-bit dithering (at -110 dB). Why?
• MicroMPX: Create file format
• Speech detection: Also link MB band 1 to band 2.
• "Quality" display show actual CPU load effect, 25-100%, 50 default
• GPS report in Stereo Tool: 153600 -> 192000
• BS412: Check bass filtering. Doesn't appear to work, and display shows compression when more bass protection is there. See recordings Sebastian K (D:\sts\Seb*)
• Add "Save" which saves to last opened (what does that mean though?) .sts file, and asks to save on close, so we always have a way to go back.
• Preset compare, A/B mode with either 2 stored presets or 2 active presets that you can switch between.
• Check: Clip highest frequencies harder, check if that improves multipath issues. First test would be to lower the lowpass filter.
• Crossovers
• MicroMPX: Fix 2nd input; MicroMPX: Show source (origin port?) of last decoded packet, maybe also show other active origin ports. show duplicates in a different color in the graph? See check for originPortAllowed for separate streams. Maybe add checkbox to skip originPortAllowed check, if that does not yet exist.
• M1 cross compile
• If lowpass filter is used, maybe filters can ignore high frequencies as a performance improvement. Maybe even in Stokkemask etc!
• TEST CRASH WHEN DISCONNECTING INTERNET WHEN STREAMING - Windows 7 only, apparently.
• Finish BIMP/STAMP interfaces?
• 2w: Slow license code on startup
• Is a few % phase wobbeling a good idea to improve stereo image and flat frequency response in rooms?
• Sub-presets (Declipper, Voice detection)
• MB1 band linking: instead of making it 3 to 2, make it 2 to 3
• STX: AES67 NIC selecting fails sometimes, probably due to booting too fast.
• Fix web interface slow animation
• PNR message which settings changed
• Speech detection: Different settings (presets?) for English/Dutch vs Spanish (different S sounds). Different settings for music radio, talk radio etc LATER
• MicroMPX for left/right audio? AM?
• Startup screen with reseller logo STXtreme?
• Email/SMS alerts via cloud
• Gates must work on loudest channel when combining channels? (Wes)
• Speed linking in dynamic speed mode: Release slowest behavior a bit faster on big drops
• Advanced Clipper Bass Killer: Add dynamic behavior (lower strength if there are mids, for example)
• Improve Highs vs Rest calculation, it's now incorrectly adding up levels. Is it necessary to use real RMS? (Maybe not, verify with random noise ON HIGHS)
• Login: Per session, Update editable status, Hide things, Show warning when trying to change something without access
• Put backup file upload in web interface for MicroMPX
• STX: Edit whitelist on unit
• Pi PiMP stand alone BUSY
• Pi AM stand alone
• ABE GUI BUSY
• Add "Comb phase"-like test tone to uMPX (FB chat Cleiton Araújo)
• MicroMPX: Silence detector with backup player (timeout - threshold - time ok before going back to stream)
• MicroMPX: Check if LZSS does anything useful (probably not) https://www.youtube.com/watch?v=EFUYNoFRHQI
• Clipper detect where highs are killed and compensate for that
• Block multiple instances (avoid running multiple Stereo Tool instances with the same settings)
• STX: Overview page with meters
• MicroMPX decoder 2nd port number - with pull-down menu, and indices.
• LiquidSoap/Centova setup manual, maybe add some features
• Improve ABDP
• Compressor with curve drawer
• Disable stereo widening when detecting low bitrate MP3s
• Add checkbox under Delossifier to make Absolute Highs fix highs.
• STX: Split high frequency tilt
• BS412 bug: For Quality > 100, the compressors are off by a few dB (probably 1.5x or 2/3rds).
• How to synchronize HD?
  -
• Measure HifiBerry stereo separation -> Improved from 35 to 55 dB. Make RC work with Ignore high frequencies -> Later
• Loudness project
• Tom aan de Stegge remarks email 30 september 20:23 - change many defaults
  -
• Support rewindowing with different Quality/Size settings. Will give better HPF performance and make lower CPU load possible, and PPM patch points.
• Linux command line version with AES67 input so output can be streamed - seems to be useful... Other options (run a script for the output) might be easier.
• PhoneBooster make Pi version
• MicroMPX needs exception handling, just in case.
• WatchCat replace files instead of placing them elsewhere. For playout systems.
• WatchCat add CMD /C
• Input and output gain for command line version (like for sound card)
• Dynamic adjustment of priorities
• Sooth effect
• Installer: Make installer aware of programs like MediaMonkey, AIMP, .....
• Declipper handle resampled audio better (upsample, find oversampling spikes, then detect based on what remains)
• Console version: Read sample rate and bit size from WAV header
• # bands selections should allow option to insert a band instead. Or ask what to do when you change it.
• AES67 thread affinities and priorities
• Add resampler

I can't load the VST 2 64 bit version into Adobe Audition unfortunately. It always tells me that it would not be functional. Something is wrong with it....

What's with VU meters

_________________
control point
control point2

The Stereo Tool - VST3 64-bit crashes my Adobe Audition, [Windows 11 x64] I went back to v984.002 since 005 & 007 didn't work either.

Confirmed and fixed. Indeed caused by the under-the-hood changes. I'll run a new build tonight.

Fixed:

Using my USB GPS to test:

1. Using the 4800 baud setting for uMPX GPS time stamping, the GPS NMEA data (time field) is continuously updating (seems to be getting the time OK) but ST does not show 'NMEA data" as active, nor does it populate the ''Remaining offset to be compensated' or Average samples between NMEA'. No GPS lock.

2. Setting the GPS to send at 9600 baud and selecting this rate in ST appears to works fine. ST gets GPS lock.

So it appears to only be partially working? Maybe something to do with the internal calculations required, receiving data using a different baud rate?

Could be. We need a way to detect when the flow of data (for a specific second) starts, and we detect that by seeing a pause in the data. It could be that at 4800 baud it's sending so much data that there is (nearly) no pause. Can you check that in your Putty setup?

It looks like the NMEA sentences are currently coming in something like this

$GPGGA
$GPGSA
$GPRMC
<pause>
$GPGGA
$GPGSA
$GPRMC
<pause>
$GPGGA
$GPGSA
$GPRMC
<pause>
$GPGGA
$GPGSA
$GPRMC
$GPGGA
$GPGSA
$GPGSV
$GPGSV
$GPGSV
$GPRMC
<pause>

I guess that it is possible that because the data comes in slower at 4800 baud, there may be less of a pause before the next lines begin. Subjectively, this appears possible (when just watching the PuTTY data), but I am unable to measure the pauses to be sure.

Another experiment seems to suggest that it may indeed be related to this - setting the GPS to 19200 or 38400 baud is OK - ST populates fields and gets GPS lock fine.

The required timeout is currently set to 150 ms, I guess I could reduce that. Can you make a short video that I can use to see/measure how long the pauses are?

Also, is that last block way longer? It looks far too long to send in 1 second at 4800 baud.