Thimeo Stereo Tool 10.30 / 10.21 / 10.20 / 10.11 / 10.10

Stereo tool is a software-based audio processor which offers outstanding audio quality and comes with many unique features. It is used by over 1500 FM stations ranging from small local stations to 50-100 kW stations and nation-wide networks with dozens of transmitters, thousands of streaming stations and many DAB+, HD, AM and TV stations. It can be used for both live and file based processing.

If you don’t use Stereo Tool for FM processing, Basic suffices.

FM Standard offers “standard” FM processing, stereo and RDS encoding. The processing in this license is comparable to what many high end (00+) hardware boxes offer. In most markets, this license will make you one of the louder stations on the dial.

FM Professional adds our special Composite Clipper to the processing. This is the same clipper that’s in the Omnia.9sg and the Omnia.9 and Omnia.7 are being upgraded to it. The Composite Clipper takes the stereo pilot, stereo encoding and RDS into account when generating the composite MPX signal, which increases the headroom for audio by a lot. You can typically generate a signal that’s 2-3 dB louder without sounding more clipped, which results in a much more dynamic and much higher fidelity signal. Beside that it unlocks our “Asymmetric L-R” mode, which adds another 1 dB or so. Beside these advantages to the audio signal, the clipper can also analyse the RF spectrum after the exciter, and optimize the signal to reduce reception issues in fringe areas and in multipath areas.

If you can use Stereo Tool to generate the composite MPX signal, we highly recommend the FM Professional version, which sounds much better and improves your reception. To be clear, with FM Standard you’re not doing worse than most high end hardware boxes, but FM Professional really takes it to another level – assuming proper hardware you’ll be the loudest and cleanest station on the dial.

Declipper

Due to the so-called loudness war, where everyone wants their track to sound louder than any other track, nearly all music from the last 20 years or so has been clipped during mastering. This causes several issues:

It sounds distorted
It lacks dynamics
Low bitrate codecs are using a lot of their bits to encode the distortion, leading to much more lossy compression (MP3, AAC, …) artifacts.

To make things worse, audio processing tends to boost softer sounds, in this case, the distortion, which worsens these problems. The Declipper repairs the audio before it enters the processor.

Our declipper is also used by police forensics labs. The following video shows what it does to clipped audio:

Delossifier

The Delossifier improves the sound of lossy compressed audio. It’s targeted at repairing low bitrate MP3 and MPEG2 files. Use this if your playlist contains low bitrate tracks. (But please, do everyone a favor and replace them…. With clipped audio that’s usually not possible, but low bitrate is a different story.

Advanced Dynamics

Advanced Dynamics was added in Stereo Tool version 8.50. It consists of 2 parts:

Auto EQ
Dynamic ratios

Auto EQ is the most spectacular part. It adjusts the sound before the AGC without compressing it. This makes it possible to have a much more consistent output without sounding processed. Since it doesn’t compress the audio, it doesn’t add density and doesn’t cause pumping or breating. Auto EQ can achieve the same spectral consistency that multiband compression can, without those side effects. It does not affect audio levels, only the spectrum.

Dynamic Ratios makes it possible to have a different ratio in the compressors depending on how much they are pushing the level down. When it gets deeper, it gets steeper. So a very loud sound will be compressed more.

This video shows the Auto EQ in action:

2024/04/06 v10.30
Advanced Clipper: Fully redesigned intermodulation distortion and level protections. Sounds more natural, louder, cleaner, and punchier.
RDS: Added RDS2 support (for station logo’s only, for now).
RDS: Added support for UTF8 input for characters like æ ø å.
Adaptive compressors and AGC: Slightly optimized the code for performance.
Added numbers to duplicate sound card names to separate them.
Reduced address space (not the same as memory usage) by about 30 MB (measured on Windows).
Reduced memory usage for the GUI.
GUI: Code optimized, CPU is about 40% lower on the meter overview page, 75% lower on pages with very few moving elements.
GUI: Allowing setting sliders to out-of-range values, via entering values or JSON interface.
GUI: Advanced Clipper: Cleaned up and renamed many settings, mainly in the IMD protection subpage.
GUI: If you import a preset but don’t load it, an warning is shown.
GUI: Improved text drawing (color selected depending on background etc.).
GUI: For widgets at default values, the default is no longer hidden in the context menu, but shown disabled.
GUI: Several fixes for VST plugin sizing.
GUI: Fixed widget height issue, restored the original heights from a few releases ago.
GUI: Closing a question now properly chooses the “cancel”/”no” option if there is any, instead of just closing it.
GUI: The last visited page is now stored correctly, even when user accounts have been enabled and a user is logged out.
GUI: Rewrote meters code.
GUI: Scale lines and medians in meters now have the correct location (could be off by a few pixels).
GUI: Fixed resizing the left navigation menu when a modal page is open.
GUI: Drop-down menus now properly shorten their contents when they become too large.
GUI: Elements with a non-opaque background should now redraw only once (instead of multiple times, which caused graphical artifacts).
GUI: Page titles are no longer scrolling away if you scroll down on a page.
GUI: Skinning and sizes: Page header font and normal header font have been merged.
GUI: Skinning and sizes: Compactness and spacing size have been merged.
GUI: Several small tweaks in spacing and alignment.
GUI: Added True Bass and Bass Exciter metering.
GUI: Linux: File dialogs on one Linux repo was unusable, fixed.
GUI: macOS: Optimized code that actually draws the widgets on screen.
GUI: macOS: Proper Retina display support, looks much sharper.
GUI: macOS: Coloring fixed (no more flickering while resizing).
GUI: Multi-instance: There is now 1 window; instances don’t have separate windows anymore.
GUI: Multi-instance: New and improved overview screen for ST-Enterprise.
GUI: Multi-instance: Instances can now be completely removed, including their settings (a backup is kept).
GUI: Multi-instance: If no instance name is set, we display “Instance #” without setting the actual title.
GUI: Multi-instance overview now houses all settings that are not instance-specific.
GUI: Multi-instance overview now supports block view alongside list view.
GUI: Multi-instance overview alignment tweaked.
GUI: Multi-instance overview is now responsive before loading instances instead of after.
GUI: Multi-instance performance for more than one instance vastly improved.
GUI: Multi-instance window title now properly displays the active instance name.
Web interface: Reduced functionality of the overview screen for ST-Enterprise due to the redesign; this will be improved later.
Web interface: Support for skinning and resizing added.
Web interface: Fixed security issue for JSON in combination with password protection.
Web interface: Added support for http and https proxy servers; the data can now be routed through those. Add /stereotool/ before our part of the URL.
Web interface: Rewrote meters code.
Web interface: Many updates and improvements.
Linux builds: Removed libbz2.so dependency that caused issues on some Linux distro’s.
Bug fix: “Turn off unlicensed features” did not turn off AGC or compressors Adaptive mode.
Bug fix: Linux: Using Jack could cause crashes on very old Linux distro’s (seen on Ubuntu 2016).
Bug fix: GUI: Crash in VST plugin in Ocen Audio fixed, caused by window size issues.
Bug fix: Very occasionally, when only processing for FM, a small chunk of HD output would be generated and then discarded.
Bug fix: Password protection didn’t work between native and web interface in non-Enterprise builds.
Bug fix: libStereoTool: Return value of GetLicensed library function was wrong. The returned text was fine.
Bug fix: CPU mask settings cannot be saved in VST plugins. Removed them.
Bug fix: Pressing “enter” randomly selected a text field.
Bug fix: GUI: In rare circumstances (edge cases), the display could “flip out”, changing its layout constantly.
Bug fix: Advanced Clipper: Fixed bug that could cause complete removal of bass due to division by 0 (which has been there for years).
VST plugins: Rewrote and simplified window size and DPI code.
VST plugins: Color settings could end up looping after changing them. The lowest blue bit is now removed.
VST plugins: Adding protection against hosts that break the settings and try to set font sizes to 0.
Added –full-version command line option to output full version info including beta versions.
DHD version of Stereo Tool logs to syslog instead of its own log files.
Updated presets.
Firmware is updated for the Raspberry Pi 5, but due to driver issues the new image is not yet released.
STXtreme: Different instances are now accessible on the front panel.
MicroMPX encoder: Added support for audio devices that only support 2-channel mode (it was using 1-channel mode).
MicroMPX decoder: Improved CPU performance with about 1%, and no longer writing MicroMPX+ data fields in MicroMPX mode.
MicroMPX decoder: Added dynamic thread priority behavior to prevent dropouts during error recovery on machines with very low CPU power.
STAMP: Fixed licensing bug, caused automatic licensing to fail.

More Info

Special thanks to CallumCat (TSRh) keygen release and Blackrider (TSRh) Internet check patch release.

2 September 2023 – Added new VST (big thanks to Blackrider TSRh)

19 October 2023 – Thanks to Blackrider gift release 🙂

20 October 2023 – Added latest DSP and VST64 (Detected as false positive)

23 October 2023 – Added VST x86 version (Detected as false positive)

14 November 2023 – Added Stereo tool x64 version (Detected as false positive)

9 January 2024- Added 10.20 /VST x86 version (big thanks to Blackrider TSRh)

9 January 2024 – Added VST x64 + DSP + Stereo tool x64 (big thanks to Blackrider TSRh)

22 January 2024 – Updated 10.21 version (big thanks to Blackrider TSRh)

9 April 2024 – Update 10.30 x86 version (big thanks to Blackrider TSRh)

Stereo tool x86 10.30 (May detected as false positive)

(Registered Silent Install Repack) x86

Thimeo Stereo Tool 10.30 / 10.21 / 10.20 / 10.11 / 10.10

Declipper

Delossifier

Advanced Dynamics

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