REQ: Modartt Organteq 2.0

Organteq offers realtime synthesis of organ pipes sound based on physical model. By capturing the complex physics of flue and reed pipes, it brings a vivid instrument of stunning playability and breathtaking realism.

Everything in Organteq can be tweaked - from the composition of the organ to the sound of each pipe - making it possible to reproduce a wide variety of existing organs or to explore unknowns musical lands.

Features
Organteq offers over four thousand pipes, inspired from many great organ builders of French Romantic and German Baroque periods : A. Cavaillé-Coll, G. Silbermann, T. Tröst and many others.

These 68 organ stops, ranging from 32' to 1', can be assigned to three manual keyboards with a five-octave range, and a pedal keyboard with thirty-two notes.

Every pipe of every stop can be voiced to your taste through many user parameters.

Physical modeling
The core synthesis algorithms of Organteq are based on aeroacoustics of the organ pipes. The equations of the air jet growing and impacting the labium, the equations of the beating reed, as well as the ones that describe the pipes resonances, are used to synthetize organ pipe sounds.
In addition, the acoustics radiation from the pipes ends to the division box first, and then to the main space. This makes it possible to listen to the organ sounds in various configurations.

The use of physical modeling has many advantages:

Small file size
The installation file size is just 30 MB (Megabytes) in contrast to sampled virtual organs which require up to 64 GB (Gigabytes).

Quick load time
Organteq loads quickly thanks to the limited file size.

Variability
When playing a repeated note on a real organ, you can hear subtle variations in the attack, even with sustain. The physical model reproduces these variations. Thus, you are not stuck to the static nature of samples.

Tweak the model
Access to physical parameters makes it possible to tweak the sound of the pipes in unique ways, including reverb effects.


New in 2.0.0 (2023/09/27)
New stop collection: German Baroque
Revoice French Romantic stop collection
New built-in presets
New settings panels: Output/Division, Stops, Expressions, Tremulants, Combinations, Crescendo, Tuning
New stop pipe-per-pipe voicing parameters
New division parameters (Reverb, EQ)
New audio routing mix matrix up to 8 channels
Add 2 expression pedals: there are now 3 expression pedals
Increase the numbers of steps of crescendo pedal
The crescendo pedal can now control couplers and tremulants
Increase stop capacity to 50 slots
Accessibility for blind users: VoiceOver (macOS) and Narrator (Windows 10) support added.
For advanced users, Organteq can be remote controlled with a JSON-RPC api when started with the "--serve localhost:8081" option.
Various bugs fixes