Choose audio inputs
Select microphone inputs for a multitrack recording.
4u Digital
Desktop application
Record separate microphone tracks and listen to a shared mix in one desktop app.
Selected personal project
Release candidate
Physical microphone validation is still pending.
Video consultation · Opens BriefBooth in a new tab. Requests are reviewed before confirmation.

Repository product artwork · Desktop engineering / release candidate · Multitrack recording overview.
A cross-platform recorder that combines up to eight USB microphones into separate audio tracks, a summed mix, and one live monitor mix.
Made for People recording with several microphones
Select microphone inputs for a multitrack recording.
Keep separate audio tracks while listening to a shared monitor mix.
Browse saved takes and the app’s recording-recovery tools.
Every original view, in full color. Open any image at full size.

Repository app capture · Virtual microphones · Recording a demo take

Repository app capture · Virtual microphones · Simulated input interruptions

Repository app capture · Virtual microphones · Saved demo files and warning

Repository app capture · Virtual microphones · Simulated crash recovery
A studio could plan a recording tool for its own equipment; this example remains a release candidate with physical microphone validation pending.
Separate tracks and take recovery are part of the build; physical microphone validation remains pending.
Work directly with the developer, from the first idea to launch. Your custom code is 100% yours. Client work and code stay out of this public portfolio unless you give permission.
The product overview is repository promotional artwork illustrating microphone channels and saved tracks. Its depicted recording durations, device names, file sizes, and alignment figures are not measurements taken for this portfolio. The separate repository app captures use virtual microphones and display an earlier UI version. The current repository status is v1.13.29 release candidate, with physical microphone validation still in progress. The earlier v1.13.25 source used for the app captures includes headphone output routing and recording-stem alignment.