Prepare
Add songs or four-stem folders, set BPM, and create SP-1-ready output.
SP-1 Utility
Native Mac app
JT Apps / Mac utility / SP-1
SP-1 Utility
Make SP-1-ready stem albums without touching Terminal.
Prepare songs or stem folders, preview the output, and transfer device-ready WAVs from one native Mac app.
Native Mac app
USB-C transfer
24-bit / 48 kHz
Eight-channel PCM
Grab the Mac app
Download SP-1 Utility.dmg from Releases, open it, drag the app into Applications, and launch it from there.
What it does
Prep, preview, and transfer stay in one Mac app, so you can make SP-1-ready albums without setting up a command-line workflow.
- Prepares regular songs or existing four-stem folders.
- Creates SP-1-ready WAVs: 24-bit, 48 kHz, eight-channel PCM.
- Keeps prepared tracks organized in a Library view.
- Plays master and individual stem previews inside the app.
- Transfers ready albums to the SP-1 over USB-C.
- Shows connection state, transfer status, confirmed progress, and recovery details.
Library
Review prepared tracks, play the preview mix, and check individual stems.
Upload
Build an album plan, watch SP-1 live controls, and transfer ready WAVs over USB-C.
No Terminal detour
Install the app and work from the Mac UI. No Homebrew, Python setup, or command-line prep just to make a device-ready album.
Latest build on Releases
The DMG lives on the GitHub Releases page. Grab the latest build there when you want the app, not the source code.
Prepare. Preview. Transfer.
SP-1 Utility is for getting from a song or stem folder to a device-ready album without leaving the Mac app.