LUFS Meter

Release notes

LUFS Meter 2.1.2

September 23, 2020

• The core measurement algorithm got rewritten in order to run on a wider range of processors.
• Fixed that the colours for the integrated loudness value and the short-term loudness value change according to the chosen colours in the settings.
• Stability improvements.

LUFS Meter 2.1.1

May 12, 2020

• Stability improvements when running under Cubase 10.5 for Windows.
• Stability improvements when running under Final Cut Pro.
• The installer and the plug-ins for macOS are notarised by Apple.

LUFS Meter 2.1.0

April 14, 2020

• New: Press the Alt key while dragging the adjustment fader to simultaneously change the adjustment faders in all instances of the same sync group. Keeping their relative differences to each other.
• New: Hold the Alt key and double klick on the adjustment fader to reset the adjustment faders to zero LU in all instances of the same sync group.
• Extended the synchronised undo history functionality to include all adjustment fader changes of all instances belonging to the same sync history.
• Improved the drawing efficiency of the graphical user interface.
• Improved the transmission of automation data to the host.
• Support for a broader range of CPUs under Linux.
• Fixed an unlocking issue under Linux.
• Suitable toggling of the pause button when loading a preset with enabled 'sync with the host' options.
• Improved playback detection for small buffer sizes.
• Fixed the startup preset loading in Pro Tools.
• Include and remember the 'pause' and the 'adjustment power' state in the startup preset.
• Changed the order of the reported possible number of input and output channels to the host. Now starting with reporting '2 channels' first. This avoids that Reaper adds the confusing "(mono)" to the name when loaded as VST3 on a stereo channel.
• Refresh the colour rectangles when one gets drag and dropped.
• Refresh the detached settings panel when loading a preset.
• Fixed that when bouncing, a final refresh of the history graphs was sometimes missing.
• Fixed to refresh the mouse position info vertical line and the numbers when the cursor is over the 'auto scrolling' triangle.
• Fixed that switching to autoscroll didn't happen when a synced reset was triggered.
• Extended error messages.
• Extended the built in documentation as well as the manual.
• Using the latest AAX, AU, VST and VST3 SDKs.

LUFS Meter 2.0.0

April 11, 2019

• A synchronized undo/redo functionality for the adjustment gain fader.
• Presets for AES AGOTTVS, iTunes Radio, Netflix, YouTube and Spotify.
• The mouse position info provides the measurement values of any time since the measurement started.
• Experimental Linux support.
• The entire plug-in interface can be scaled to have a confortable size for your big or small screen.
• Zoomable and movable history graphs.
• The visible loudness range can be changed by click and drag of the loudness scale.
• Detatchable settings panel.
• More automatable parameters to help visually impaired users to work with the LUFS Meter.
• Re-implemented synchronisation mechanism. A plug-in instance now reacts to all the changes in the sync group, even if it got halted by the host for an arbitrary long time.
• More efficient true peak calculation.
• Replaced most combo boxes (drop down menus) with custom text sliders.
• Bugfixes and small improvements.
• Price of the LUFS Meter reduced from $49 to $39.
  Price of the Discounted LUFS Meter reduced from $24 to $19.

LUFS Meter 1.4.3

May 13, 2016

• Fixed an AAX signing issue which caused Pro Tools 12 to not accept the LUFS Meter as a plug-in under OS X prior to OS X 10.11 (El Capitan).

LUFS Meter 1.4.2

April 11, 2016

• Changed the installers on OS X and Windows such that the previous plug-in files get deleted before they get replaced. Otherwise it happened on OS X as well as on Windows that even though the files got replaced, they kept the creation and modification date from the previous version. Some hosts (like Pro Tools) do use the creation date flag to determine if they need to rescan a plug-in.

LUFS Meter 1.4.1 Beta

April 06, 2016

• New 'true peak tolerance' to indicate if a recommended maximum true peak has been exeeded.
• New option to measure the integrated loudness according to the old ITU-R BS.1770 Revision 1. It's still in use in some places.
• Added the 'ATSC A/85 old (2009)' preset that uses the ITU-R BS.1770 Rev 1.
• A locked LUFS Meter now remembers all the settings stored in a project (of the host) until it gets unlocked.
• Fixed an occasional unwanted initial gain ramp in Pro Tools the first time an Audio Suite render gets applied.
• The preset list gets updated in all instances of the LUFS Meter when a new preset has been created.
• Auto scrolling the colours tab when a colour rectangle gets dragged.

LUFS Meter 1.4.0

March 14, 2016

• New sync to host. Reset, pause and 'adjust to' can be triggered by starting or stopping the playback in the host.
• Fully compliant with the latest EBU recommendations (January 2016).
• Multi colored short term loudness.
• Replaced the Lagrange interpolator with the r8brain sample rate converter to increase the precision of the oversampling algorithm used to calculate the true peak.
• The target loudness is synchronised between instances of the same sync group.
• Improved the performance of the loudness measurement.
• Support for Pro Tools Audio Suite offline analyze.
• Support for offline analysis in Reaper via its freeze option.
• Fast scrolling of the history graphs when processing faster than realtime.
• Updated the factory presets.
• Added denormalization (higher CPU usage on silence) prevention.
• Stability improvements when the host changes the number of channels while processing.
• A single click anywhere on the track of the adjustment fader doesn't make it jump to that loudness anymore. This could have resulted in dangerously high volume increases.
• Fixed: Alt-Click to reset the adjustment fader to 0 LU didn't work in Cubase.
• Replaced the web browser component in the update notificator with a simple text editor to display the changes. The embedded web browser had rarely caused issues on OS X 10.10.
• The Demo LUFS Meter (formerly called Evaluation LUFS Meter) has now it's own installer. It can't be unlocked anymore. The features of the Discounted as well as the features of the full LUFS Meter can now be tested in the Demo. The LUFS Meter installer for the Discounted and the full LUFS Meter is available to customers after logging in at klangfreund.com.
• Bugfixes.

LUFS Meter 1.3.0

December 09, 2015

• New Maximum Short-Term and Maximum Momentary Loudness values to measure short content according to EBU R 128 s1.
• New presets for international standards: AGCOM 219/09/CSP (Italy), ARIB TR-B32 (Japan), ATSC A/85, PRSS, CALM Act (US), OP-59 (Australia).
• The sync functionality is now available from the main window, at the bottom right.
• New sync groups. Multiple LUFS Meters can now be synced in groups.
• New adjustment power button (or bypass, if you like). Can be synced.
• New: The LRA value can optionally be hold as soon as silence occurs. This makes it easier to read it after a measurement. Without this, especially on short measurement times, the LRA will slightly increase on silence.
• New automatic update check.
• New online unlocking. If your audio computer is connected to the Internet, you can unlock the Discounted or the full LUFS Meter from within the plug-in.
• The token generator needed to be changed. Before it could happen that the 32 bit and the 64 bit versions on Windows showed different tokens. A similar discrepance occurred on OS X with Garage Band and everything else. -> Unfortunately, you need to activate your LUFS Meter again. If you are affected, a dialog window inside of the LUFS Meter will pop up and guide you through the process.
• Stability improvements if one instance of the LUFS Meter is run on multiple threads. This mainly affects Final Cut Pro X.
• Improved automation handling, mostly noticeable in Ableton Live.
• Increased the number of colours for the integrated loudness from 3 to 4 to visually distinct the close areas above and below the target loudness.
• Bugfixes and small improvements.

LUFS Meter 1.2.1

August 17, 2015

• New: Added a threshold for the 'adjust to' functionality. This avoids big amplifications of very quiet or muted tracks.
• New: The key file can also be entered manually. For hosts that don't allow drag and drop.
• Improved notification to the host about parameter changes.
• Decoupled the internal preset handling from the hosts preset handling.
• Renamed the 'computer ID' to 'token' to avoid confusion.
• Fixed a security flaw in the copy protection scheme.
• Added additional code to handle strange behaviour of Final Cut Pro X.
• Bugfixes.

LUFS Meter 1.2.0

July 22, 2015

• New: Added a relative loudness scale. This makes the LUFS Meter fully EBU compliant.
• More presets included.
• Improved the preset handling.
• Improved the synchronisation between multiple instances.
• Improved the plug-in parameter communication from the LUFS Meter to the host.
• Handles many quirks of Final Cut Pro X.
• Bugfixes.

LUFS Meter 1.1.3

June 30, 2015

• Stability improvements for Pro Tools 10 under OS X 10.6.

LUFS Meter 1.1.2

June 23, 2015

• New: Introduction of the pause button.
• New: Automatable 'pause', 'reset' and 'adjust to'.
• New: Resizable 'adjustment section'.
• Small improvements.
• Bugfixes.

LUFS Meter 1.1.1

June 13, 2015

• Fixed: The LUFS Meter occasionally did not pass the audio unit validation.

LUFS Meter 1.1.0

June 09, 2015

• New: Synchronised operation. 'reset' as well as 'adjust to' can be synchronised across multiple instances.
• Enhanced unlocking when multiple instances are open.
• Bugfixes.

LUFS Meter 1.0.1

June 01, 2015

• New: The Evaluation LUFS Meter now offers all the functionality of the Discounted LUFS Meter, limited to 60 seconds.
• Bugfixes.

LUFS Meter 1.0.0

May 29, 2015

• Initial Release.