LandscapeAcousticVST is a real-time terrain-based sound propagation VST plugin designed to simulate outdoor acoustic environments using Digital Elevation Models (DEMs) and ISO 9613-2 acoustic propagation calculations.

Core Features
The plugin offers real-time convolution for terrain-derived impulse responses and ISO 9613-2 compliance for scientifically accurate acoustic propagation modeling. It supports multiple DEM formats (GeoTIFF, ESRI ASCII Grid, DTED, SRTM HGT, and ERDAS Imagine) through GDAL integration, with seamless QGIS integration via PyQGIS export scripts. The plugin is available as VST3, AU, and standalone applications across Windows, macOS, and Linux, and includes an interactive GUI with visual terrain mapping and point-and-click source/receiver selection.

Technical Requirements
To build the plugin, you need the JUCE Framework (7.0+), GDAL Library (3.0+), CMake (3.15+), and a C++17-compatible compiler. The documentation provides platform-specific installation instructions for Windows (vcpkg), macOS (Homebrew), and Linux (Ubuntu/Debian).

How to Use
Users can load DEM data by dragging and dropping GeoTIFF files or using the "Load DEM File" button. Analysis points are set by left-clicking to place a sound source and right-clicking to set the listener position, with the plugin automatically generating the impulse response. Adjustable parameters include temperature, humidity, ground type (Hard/Porous/Mixed), source and receiver heights, and dry/wet mix. The plugin processes audio in real-time through terrain-based convolution and allows export of impulse responses as WAV files.

Scientific Approach
The plugin implements the ISO 9613-2 international standard for outdoor sound attenuation, including geometric spreading loss (divergence), temperature and humidity-dependent atmospheric absorption, ground effect modeling, and Fresnel knife-edge diffraction theory for terrain obstructions.

QGIS Integration Workflow
The plugin can be installed as a QGIS plugin or used with manual export scripts. Users open a DEM as a raster layer, create a point layer with source/receiver points, add a 'type' attribute to distinguish sources from receivers, and run the qgis_export.py script in QGIS's Python Console. The generated configuration can then be imported into the plugin using the "Import QGIS Config" button, which automatically loads the DEM and sets analysis points.

Archaeoacoustic Applications
The documentation highlights three key applications for archaeology: soundscape reconstruction for modeling historical acoustic environments, site analysis for understanding acoustic properties of archaeological locations, and cultural interpretation to explore sound-landscape relationships in past societies.

Performance Specifications
The plugin achieves less than 5% CPU usage for typical scenarios, supports impulse response lengths up to 16,384 samples (370ms at 44.1kHz), has been tested with elevation grids up to 10k×10k, and maintains plugin latency plus convolution delay of typically less than 10ms.

Development and Support
The project is structured with C++ source code in the Source/ directory, UI assets and sample data in Resources/, QGIS integration scripts in scripts/, unit and integration tests in tests/, and documentation in docs/. The plugin is licensed under the MIT License and includes guidelines for contributing that emphasize C++17 standards, unit tests, Doxygen documentation, and validation against ISO 9613-2 reference calculations.