Stone strips away cloud bloat, leaving only high-efficiency local recording modules, SQLite autosave structures, and professional offline DSP filters.
Stone supports layering up to 8 concurrent mono tracks. Build rich arrangement structures step-by-step in any environment:
When exporting, Stone builds a script command parsing track volumes, trim offsets, and pans, mixing them using the FFmpeg filter graph:
# Trimming and panning mapping
[0:a] atrim=start=0.5:end=180.2,
pan=stereo|c0=0.8*c0|c1=0.2*c0 [voc];
[1:a] atrim=start=0.0:end=180.2,
pan=stereo|c0=0.3*c0|c1=0.7*c0 [gt];
[voc][gt] amix=inputs=2:duration=longest [mix]
Drag the slider below to hear how Stone filters out environmental noise, electrical hums, and low-end street vibrations.
Street corners, tube stations, and bedroom studios have high ambient noise floors. Stone leverages local execution of the `ffmpeg_kit_flutter_new` libraries to process raw files in the background:
How our simple, parameter-based auto-mixing algorithm analyzes layer types and arranges them into a clean stereo spectrum.
The lead vocal is automatically anchored to the exact center of the stereo panorama (pan coordinate: 0.0), boosted to sit cleanly at the top of the mix.
Acoustic guitars and backing tracks are slightly panned (e.g. 25% Left) and volume-attenuated to avoid masking vocal frequencies.
Backing vocals and harmony lines are duplicated or panned far left and right (e.g. 30% Right) to create a wide, spacious acoustic soundscape.
Write and perform without fear of running out of space or draining batteries. Stone continuously monitors device health:
Stone uses transactional relational tables under SQLite to link songs, layers, takes, and lyrics safely:
SQLite constraints enforce ON CASCADE DELETE, meaning deleting a project automatically cleans up all associated records and folder files safely.
Download the free, zero-tracker mobile application and experience offline music production today.