Overview
Aura Mixer is a commercial, native Windows application that gives every sound on your PC its own fader — something Windows still can't do out of the box. It's built to replace the usual stack of VoiceMeeter, Equalizer APO, Peace, and HeSuVi with one native tool, aimed first at gamers and streamers who want per-app control without the driver soup.
What it does
- Per-app volume and routing over WASAPI, with a full channel strip per source: noise gate, 12-band parametric EQ, compressor, and an optional effects rack
- HRTF-based spatial audio that folds surround sources down to convincing 3D positioning on ordinary headphones
- One-click community presets ("Workshop") for ready-made setups — a single pack can tune footstep EQ, spatial mode, and loudness for a specific game at once
- Free and Premium tiers with a proper commercial backend handling accounts, licensing, and payments
Tech highlights
- MAUI Blazor Hybrid desktop UI on Windows, driving a real-time DSP engine built directly on WASAPI — a 48 kHz/32-bit float pipeline with round-trip latency in the low milliseconds, running on MMCSS real-time threads
- ASP.NET Core backend for the licensing portal: Stripe payments, offline-verifiable ES256 machine-bound licenses, auto-update infrastructure, and an admin portal
- PostgreSQL + Docker, deployed through a GitLab CI/CD pipeline
What I'd do differently
Right now the DSP engine shares a process with the UI, which has worked well so far but means the two compete for CPU as the effects chain grows. Splitting the audio engine into its own process is next on the list.