SpectMorph 1.0.0-beta2

SpectMorph 1.0.0 beta2

Updates for macOS

• Plugin user interface now works correctly on macOS 14 (#28).
• Update clang++ compiler version on macOS.
• Minimum supported macOS version is now macOS 11.

SpectMorph 1.0.0-beta1

SpectMorph 1.0.0 beta1

New Features

• WavSource: support two formant preserving algorithms for repitching vocals.
• New operators:
  • KeyTrack - can be used to combine instruments by note range.
  • Envelope - to generate arbitary modulation envelopes.
• User defined curve editor for KeyTrack, Envelope and LFO.
• Add presets using the new operators:
  • KeyTrack Choir Ah/Oh
  • StringBrass Fusion
• JACK CC values are now interpreted per channel (allows polyphonic modulation).
• Support double click to reset properties to default value.

Fixes

• Apply midi channel bend to new voices.
• Make portamento affect filter cutoff key tracking.
• Fix problems with WavSource paths stored by LV2 plugin (make Ardour archives work).
• Fix getting the initial click events / focus plugin UI on macOS under Bitwig.
• Fix invalid access to past last vector element (#24).
• Make PandaResampler work without problems in ASAN builds.
• Refactor leak debugger to fix possible crashes caused by global destructors.
• Do not ship sample data in "1 Instrument WavSource" preset.

Internals: Improvements

• Generate and store spectral envelopes in each AudioBlock for formant correction.
• Improve the strategy for portamento synthesis (more accurate and less CPU usage).
• Propagate portamento frequency to sources.
• Randomize start phase per default to improve "Harmonic Resynthesis" quality.
• JACK: use two audio outputs to be able to implement stereo support later on.
• Add fast vectorizable log2 approximation (based on Tims version from Anklang).
• Phases in LiveDecoder, IFFTSynth: change from float to uint for performance reasons.
• Various minor performance optimizations.
• Minor LV2 meta data updates (port groups, avoid port resizing extension).
• Use newer compilers: g++-14 for windows, g++-13 for static linux plugins.
• Support automatically downloading instruments from configure.
• Avoid using std::mutex in hard RT code.

Internals: Minor Changes

• Refactoring:
  • Deduplicate morphing code from MorphGrid and MorphLinear.
  • Use shared pointers for GenericIn/GenericOut classes (RAII).
  • Get rid of sm_clamp / sm_bound (-> std::clamp).
• Improve CI support (use debug-cxx, asan, ubsan, test static build, avoid fftw planning).
• Add post install test which tests audio output for all presets after installation.
• Validate LV2 feature arrays.
• Support user defined scripts in testmidisynth test.
• Improve error messages for preset loader.
• Build cleanups: remove libbse code, simplify Qt build (remove smsampleedit).
• Update CLAP version to 1.2.1.

SpectMorph 0.6.1

SpectMorph 0.6.1

Instrument Editor

• Support click & drag sample to scroll & zoom (#22).
• Support stereo to mono conversion when loading stereo samples (#14).
• Add manual volume editing / normalization.
• Implement automatic selection triggered by midi.

New instruments

• Bass Flute
• Soprano Saxophone
• Clarinet, Bass Clarinet
• Tenor Trombone
• Viola, Double Bass
• Make samples and meta information for standard instruments available on github.

Improvements

• Support multiple banks for WavSources / instrument editor.
• Avoid allocations in DSP thread to be hard RT capable.
• Allow overriding analysis parameter for frame stepping to get higher time resolution.

Fixes

• Make UI work properly in Ableton Live (and possibly other hosts) on macOS.
• Fix UI scaling problem on M1 macOS builds.
• Fix crash if instrument editor is closed without any samples.
• Fix cases of undefined behaviour.
• Fix timing problems for long notes, reproduce long WavSource notes with exact tempo.
• Fix use-after-free for outdated control events.
• Fix freetype related memory leak.

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)