Gateway OS V1.0.4

Gateway OS V1.0.4

Public binary hotfix release for Gateway OS.

Status

• Release type: Public binary hotfix
• Version: 1.0.4
• Source code: Not included in this release repository
• Included artifacts:
  • Windows VST3 x64
  • macOS AU
  • macOS VST3

V1.0.4 macOS AU Hotfix

• Fixes the AUv2 Cocoa custom-UI crash by matching the staged macOS AU/VST3 bundle identifiers to the bundle IDs compiled into the iPlug2 binary.
• Keeps the DAW-visible plugin name as Gateway OS with Audio Unit identity aufx / G100 / SMfo.
• Keeps AU window ownership with the host; the build does not call activateIgnoringOtherApps:, makeMainWindow, or orderFrontRegardless.
• Suppresses AU/AUv3 text-entry window ordering while retaining normal first-responder behavior.
• Keeps DSP, WaveNet oversampling, multicore processing, parameters, and Windows VST3 behavior unchanged from V1.0.3.

Validation

• GitHub macOS build passed auval -v aufx G100 SMfo.
• VERIFYING CUSTOM UI passed.
• Staged macOS AU and VST3 bundles were ad-hoc signed and verified by codesign --verify --deep --strict.
• Windows VST3 and macOS AU/VST3 artifacts were built from source commit 5ace447.

Highlights

• Correct WaveNet-family oversampling modes: Off, 2x, 3x, 4x, 8x, 16x, and 32x.
• Supported models run at the requested internal multiple with time/dilation scaling to preserve capture feel while reducing aliasing.
• Multicore polyphase mode is designed to reduce oversampling wall-clock CPU cost while remaining bit-identical to single-core mode.
• Main-window OS/MC status readout.
• Theme-color selector with compact dot palette.
• EQ, noise gate, slim, input calibration, IR loading, and pre/post EQ routing included.

Research Background

• R. E. Crochiere and L. R. Rabiner, "Interpolation and Decimation of Digital Signals: A Tutorial Review", Proceedings of the IEEE, 1981. https://doi.org/10.1109/PROC.1981.11969
• P. P. Vaidyanathan, "Multirate Digital Filters, Filter Banks, Polyphase Networks, and Applications: A Tutorial", Proceedings of the IEEE, 1990. https://ieeexplore.ieee.org/document/52200
• J. O. Smith and P. Gossett, "A Flexible Sampling-Rate Conversion Method", ICASSP 1984. https://ccrma.stanford.edu/~jos/resample/
• Z. Cvetkovic and M. Vetterli, "Oversampled Filter Banks", IEEE Transactions on Signal Processing, 1998. https://doi.org/10.1109/78.668721
• J. D. Parker, V. Zavalishin, and E. Le Bivic, "Reducing the Aliasing of Nonlinear Waveshaping Using Continuous-Time Convolution", DAFx-16, 2016. https://www.dafx.de/paper-archive/2016/dafxpapers/20-DAFx-16_paper_27-PN.pdf
• A. Carson, V. Valimaki, A. Wright, and S. Bilbao, "Resampling Filter Design for Multirate Neural Audio Effect Processing", 2025. https://arxiv.org/abs/2501.18470
• R. Sato and J. O. Smith III, "Aliasing Reduction in Neural Amp Modeling by Smoothing Activations", 2025. https://arxiv.org/abs/2505.04082
• A. Carson, A. Wright, and S. Bilbao, "Anti-aliasing of Neural Distortion Effects via Model Fine Tuning", 2025. https://arxiv.org/abs/2505.11375
• A. Carson, A. Wright, J. Chowdhury, V. Valimaki, and S. Bilbao, "Sample Rate Independent Recurrent Neural Networks for Audio Effects Processing", 2024. https://arxiv.org/abs/2406.06293
• R. Yoneyama, A. Miyashita, R. Yamamoto, and T. Toda, "Wavehax: Aliasing-Free Neural Waveform Synthesis Based on 2D Convolution and Harmonic Prior for Reliable Complex Spectrogram Estimation", 2024. https://arxiv.org/abs/2411.06807

Install Notes

Windows:

• Copy Gateway OS V1.0.4.vst3 to C:\Program Files\Common Files\VST3\
• Rescan plugins in the DAW.

macOS:

• Remove older Gateway OS V1.0.0.component, Gateway OS V1.0.1.component, Gateway OS V1.0.2.component, Gateway OS V1.0.3.component, and matching older VST3 bundles if installed.
• Copy Gateway OS V1.0.4.component to ~/Library/Audio/Plug-Ins/Components/
• Copy Gateway OS V1.0.4.vst3 to ~/Library/Audio/Plug-Ins/VST3/
• Rescan plugins in the DAW.

If a macOS host cached the old AU metadata or UI state, reboot or clear the host/plugin cache before rescanning.