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What we build

Westroo Digital develops advanced audio software and mobile applications in-house. This is an overview of our work — the product lines our engineering team designs, builds and maintains.

Windows
macOS
VST3
AU
AAX
Android
iOS

Digital audio workstations

DAW software

We develop complete workstation software for recording, arranging, mixing and mastering. It runs on our own audio engine, which is what allows it to stay responsive at small buffer sizes even with a heavy plugin chain.

Multi-track audio and MIDI with non-destructive editing
Hosting of third-party VST3 and Audio Unit plugins
ASIO, CoreAudio and WASAPI driver support
Mixing environment with buses, sends and automation
Time-stretching, pitch correction and take comping
Export to WAV, AIFF, FLAC and MP3

Audio effect plugins

Music effect plugins

Mixing and creative effects written from scratch in C++, built on DSP we develop ourselves. Each plugin is produced in VST3, AU and AAX for Windows and macOS, with native builds for Intel and Apple silicon.

Dynamics — compression and limiting, with sidechain input
Equalisation — parametric bands, analyser and mid/side processing
Reverb — algorithmic spaces from small rooms to long tails
Delay — tempo-synced, with filtering and modulation
Saturation — tape, tube and transistor character
Oversampling, full automation and preset management throughout

Android & iOS

Utility applications

Alongside our audio work we develop utility applications for Android and iOS. The engineering standard is the same: small, fast, and built to do one job properly.

Native Android and iOS development
Offline-first behaviour wherever the task allows it
Minimal permissions and no third-party tracking
Maintained across new operating system releases

About our team

Mobile finance utility app overview screen showing spending, bills and budget charts

Capabilities

What that means in practice

The disciplines our team covers across every product line.

Digital signal processing

Filter design, dynamics, time-based effects and non-linear modelling, prototyped and measured before release.

Real-time audio engineering

Lock-free, allocation-free processing paths that hold up at low latency and high track counts.

Cross-platform development

One C++ core with native builds for Windows, macOS, Android and iOS.

Interface design

Audio interfaces designed around workflow, with the controls that matter placed where the hand expects them.

Plugin format engineering

VST3, Audio Unit and AAX implementations, including state saving, automation and host quirks.

Release & maintenance

Signed and notarised builds, versioned changelogs, and compatibility work as platforms move on.