[LAD] spectmorph-0.6.0

spectmorph-0.6.0 has been released.

The new main features are:
  - SpectMorph now provides a CLAP plugin.
  - A filter with different filter modes was added.
  - A new, more flexible modulation system was added.
  - SpectMorph now provides visual feedback for modulated parameters.

Video Tutorial for 0.6.0: https://youtu.be/watch?v=scKrf0o6e6k

What is SpectMorph?
-------------------
SpectMorph is a free software project which allows to analyze samples of
musical instruments, and to combine them (morphing). It can be used to
construct hybrid sounds, for instance a sound between a trumpet and a
flute; or smooth transitions, for instance a sound that starts as a
trumpet and then gradually changes to a flute.

SpectMorph ships with many ready-to-use instruments which can be
combined using morphing.

SpectMorph is implemented in C++ and licensed under the GNU LGPL version 
2.1 or later

Integrating SpectMorph into your Work
-------------------------------------
SpectMorph is currently available for Linux, Windows and macOS (Intel 
and Apple Silicon), with CLAP/LV2/VST plugins. Under Linux, there is 
also JACK Support.

Links:
------
Website:  http://www.spectmorph.org
Download: http://www.spectmorph.org/downloads

There are many audio demos on the website, which demonstrate morphing
between instruments.

List of Changes in SpectMorph 0.6.0:
------------------------------------
#### New features
* New, more flexible modulation system
* Added filter with different filter modes
* Provide visual feedback for modulated properties
* Provide signed .pkg installers for macOS (Intel and ARM)

#### CLAP Plugin
* Provide CLAP Plugin
* Support for per-voice modulation
* Support timestamped modulation/automation events

#### LV2 Plugin
* Support LV2 on all platforms
* Fix crashes triggered by Carla (absolute_path/abstract_path returning 
NULL)
* Support newer LV2 development headers

#### Minor Changes
* Support "Velocity" as modulation source
* Make pitch bend range configurable
* New Presets with filter: "Cheese Cake Bass", "Liquid Silver"
* Sort midi events by timestamp to workaround Bitwig bug
* Sliders now support shift+drag for fine editing
* Support for Apple Silicon
* Avoid crashes if XOpenIM / XCreateIC return NULL (#15).
* Fix statically linked plugin data directory location (works in flatpak 
apps now).
* Add dockerized MXE builds for windows, bump compiler version to gcc-12.
* Bump minimum C++ standard to C++17
* Fix build on RISC-V (#13)
* Use GitHub CI for Linux, macOS and Windows
* Change license from "LGPL v3 or later" to "LGPL v2.1 or later".
* Minor fixes and cleanups

#### Internals: Properties
* Add generic property handling
* Simplify load/save/gui for properties
* Support modulatable properties using ModulationList
* Add gui for editing property value and ModulationList
* MorphPlan is no longer ref-counted, just one instance per Project
* Introduced MorphOperatorConfig objects for cleaner/faster parameter 
updates

#### Internals: Filter
* Add two filter types: "Ladder" and "Sallen-Key" filter to output operator
* Integrated PandaResampler for SIMD 4x filter oversampling
* Support modulation with high time resolution for filter

#### Internals: UI Toolkit
* Support multiple update regions in UI toolkit
* Optimize drawing for UI toolkit
* Support "software sprites" for efficient visual feedback
* Map Ctrl+Left Click to Right Click on macOS

#### Internals: Optimizations
* Pass wav set pointers (instead of strings) to morph linear/grid/source.
* Avoid fmod() for phase truncation.
* Build using -ffast-math
* NotifyBuffer: fast dsp thread -> ui thread notifications (no malloc in 
dsp thread)
* Avoid allocations in dsp thread in many cases (retrigger, noise 
decoder process)
* Support optimized SIMD code on ARM (Apple Silicon), code from Peter 
Johnson (#11)

-- 
Stefan Westerfeld, http://space.twc.de/~stefan
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