Veyra Sounds

🌐 Website: nextgendev-ksk.github.io/veyra-website · ⬇ Download

Veyra Sounds is a free, open-source, system-wide audio enhancer for Windows 10/11 (x64). It gives you realtime EQ, dynamics, spatial audio, voice processing, a gamer Sound Tracker HUD, and a 30+ effect DSP chain. Its primary design routes audio through a Windows Audio Processing Object (APO) — the same in-driver hook used by Dolby Atmos and DTS — at under 5 ms latency. Licensed under the GNU GPLv3.

Note on audio output: the APO path loads only on a code-signed build. This open-source release is unsigned, so the identical DSP runs through the built-in Audio Bridge instead — one switch under Devices → Audio Bridge plus the free VB-CABLE virtual device (no signing required, and the only option for Bluetooth anyway). Since v1.2.0 the Mic Bridge does the same for your microphone, so the RNNoise voice chain works unsigned too. Setting up a brand-new PC? Follow FRESH_INSTALL.md. See Known limitations.

Maintainer: Krithik S (@NextGenDev-KSK)

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Features

Audio Engine

• 10-band Graphic EQ and 16-band Parametric EQ with a node editor
• Bass Boost, Treble Shelf, Stereo Widener, Multiband Width
• Compressor, Transient Shaper, Harmonic Exciter
• Saturation (transparent / tape / tube) with 2× oversampling
• Adaptive Bass Enhancer, Headphone Safe mode
• True-Peak Limiter — 64-sample lookahead, 4× polyphase ISP detection (BS.1770-style)
• EBU R128 Loudness Normaliser and ISO-226 Equal Loudness curve
• Night Mode, Reference Mode (flat A/B bypass for critical listening)

Spatial Audio

• KEMAR HRTF Virtualisation — MIT measured HRIRs, ITD-aware interpolation
• Bauer/Meier Crossfeed with frequency-dependent compensation
• Freeverb Room Reverb — full 8 comb + 4 allpass per channel (Schroeder tuning)
• Room Simulator — 6-tap early reflection network
• Field Compensation — free-field / diffuse-field / custom

Voice & Microphone

• RNNoise ML denoiser (v0.1.1), NLMS Acoustic Echo Canceller
• Noise Gate, Auto Gain Control (−16 LUFS), De-esser, Presence EQ

Gamer Features

• Sound Tracker HUD — anti-cheat-safe layered overlay, footstep / gunshot / voice detection
• Directional radar with 3 styles (competitive / rich / compass strip)
• Game auto-detection by process name, per-app rule engine

Application

• 11 themes with live switching and custom accent colour
• 27 built-in presets + user preset library with categories and favourites
• 16 AutoEQ profiles (oratory1990 format), Hearing Test personalisation
• Sound Lab — 7 diagnostic tools (sweep, noise, polarity, 10-octave meter, hearing test)
• 8 visualiser modes, Mini Mode, global hotkeys, system tray
• DWM Acrylic backdrop (Windows 11 native glass), MSIX + portable ZIP packaging

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Architecture

audiodg.exe (SYSTEM)              veyra-service.exe
┌──────────────────────┐          ┌────────────────────────────────────┐
│ VeyraApoEfx          │◄────────►│ ApoPublisher → SharedMemory        │
│ DspChain (30+ fx)    │ seqlock  │ ControlServer (\\.\pipe\veyra-ctrl)│
│ VeyraMicApo          │          │ TrackerService (WASAPI loopback)    │
│ VoiceChain + RNNoise │          │ AudioBridge, Presets, Updater, ...  │
└──────────────────────┘          └────────────────────────────────────┘
                                               ▲ named pipes
                                               ▼
                                  veyra.exe (JUCE 8 UI)
                                  veyra-overlay.exe (GDI+ HUD)

Parameters flow service → APO via lock-free seqlock shared memory. Analyzer and tracker events flow via SPSC ring buffers. See ARCHITECTURE.md for the full data-flow diagram.

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Installing

Download veyra-sounds-setup-x.y.z-x64.exe from Releases and double-click it.

Windows SmartScreen: You may see a "Windows protected your PC" screen. Click More info → Run anyway. This is normal for a new unsigned open-source project. If there is no "More info" link at all, Smart App Control is enforcing on your machine — see FRESH_INSTALL.md.

Code signing: the current release is unsigned. Our SignPath Foundation application was declined until the project has more public traction; we will reapply as it grows. Status and roadmap: installer/SIGNING.md.

The installer automatically:

• Registers the APO COM server
• Installs and starts the Windows service
• Lets you pick your playback device (by friendly name — no GUIDs)
• Associates the APO with that device and restarts Windows Audio

After installing, add the free VB-CABLE virtual device and flip Devices → Audio Bridge on — Veyra auto-configures the rest. Full walkthrough: FRESH_INSTALL.md.

→ Full guide: INSTALLATION.md

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Building from source

Requirements: Visual Studio 2022 with "Desktop development with C++" workload (includes MSVC, Windows SDK 10.0.22000+, CMake 3.25+, Ninja).

# In Developer PowerShell for VS 2022:
git clone https://github.com/NextGenDev-KSK/veyra.git
cd veyra
git submodule update --init --recursive
cmake --preset windows-release
cmake --build --preset windows-release

Outputs: build\windows-release\bin\ → veyra.exe, veyra-service.exe, veyra-apo.dll, veyra-overlay.exe

Running in development mode (no admin needed)

# Terminal 1:
.\build\windows-release\bin\veyra-service.exe --console

# Terminal 2:
.\build\windows-release\bin\veyra.exe

Config and logs: %ProgramData%\Veyra\ (config.json, logs\, crashes\)

Running tests

cmake --preset windows-release -DVEYRA_BUILD_TESTS=ON
cmake --build --preset windows-release
ctest --test-dir build\windows-release --output-on-failure

See BUILD_GUIDE.md for APO test-signing, driver scripts, and building the installer.

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DSP chain order

Input → Balance/Mono → Graphic EQ → Parametric EQ → Tone Shelves
      → Compressor → Transient → Bass Enhancer → Headphone Safe
      → Equal Loudness → Exciter → Saturator → Multiband Width
      → Stereo Width → Reverb → HRTF Surround → Room Simulator
      → Crossfeed → Field Compensation → Night Mode
      → Volume → Loudness Normaliser → True-Peak Limiter → Analyser → Output

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Project structure

apps/veyra-apo/        ← APO COM DLL (audiodg.exe host)
apps/veyra-service/    ← Orchestrator service
apps/veyra-ui/         ← JUCE 8 UI application
apps/veyra-overlay/    ← GDI+ layered window HUD
modules/veyra-common/  ← Config, IPC, presets, shared memory, localisation
modules/veyra-dsp/     ← Header-only DSP chain (30+ effects, allocation-free)
modules/veyra-rnnoise/ ← RNNoise denoiser PIMPL wrapper
resources/autoeq/      ← 16 oratory1990 headphone correction files
resources/lang/        ← Localisation templates
resources/themes/      ← Design token JSON for 11 themes
tests/                 ← Catch2 unit + performance tests
installer/driver/      ← APO developer scripts (register, associate, uninstall)
installer/setup/       ← NSIS production installer + build scripts
installer/msix/        ← MSIX manifest

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Contributing

See CONTRIBUTING.md. All contributions are GPLv3.

License

GNU General Public License v3.0 — see LICENSE.

Third-party licences: third_party/*/LICENSE. MIT KEMAR HRTF dataset: third_party/hrtf/mit_kemar/LICENSE (non-commercial research licence).