Radio Music

SampleStack supported

Music Thing Modular

A virtual radio module that randomly plays audio files from banks on the SD card.

Format

Eurorack, 4 HP

Sample Rate

44.1 kHz recommended

Bit Depth

16-bit

Channels

Mono

File Formats

WAV

Storage

MicroSD card (FAT32 or FAT16, 32 GB max)

Specifications

Depth ~35 mm
Power 85 mA (+12V), 20 mA (-12V)

Features

  • Behaves like a radio, randomly playing audio files from banks
  • Bank CV, Station CV, Reset trigger, Start trigger
  • Audio output + End Of File gate
  • Up to 16 banks, 75 files per bank, 330 total files

Folder Structure

microSD Root (FAT32, 32 GB max)/
├── bank0/
│   ├── a.wav
│   ├── b.wav
│   └── ... (up to 75 files per bank)
├── bank1/
├── ...
└── bank15/

Notes

  • 16 bank folders maximum at the root; 75 files per bank max; 330 total files per card
  • Filenames must follow 8.3 format (8 characters max + 3-character extension)
  • Files must be mono WAV (2017+ firmware). Stereo files play only one channel
  • Optional settings.txt in root configures startup bank and voltage scaling

Preparing samples for the Radio Music

The Music Thing Radio Music turns folders of audio into virtual radio stations: up to sixteen bank folders at the root, up to 75 files each, 330 in total. Files are mono 16-bit WAV at 44.1 kHz, and filenames must follow old-school 8.3 naming, eight characters plus a three-letter extension.

Stereo files play only one channel on current firmware, so fold to mono first. An optional settings.txt sets the startup bank and voltage scaling. SampleStack converts to mono 16-bit WAV, shortens filenames to 8.3, and writes the bank folders within the per-bank and total limits.

Third-Party Tools

  • FormatRadio (Python CLI for folder structure and 8.3 naming)

Links

Frequently Asked Questions

What sample format does the Music Thing Radio Music use?

Mono WAV, 16-bit, 44.1 kHz recommended, from a FAT32 or FAT16 microSD card, organized into banks (folders).

How does SampleStack help with the Radio Music?

SampleStack converts samples to 16-bit mono WAV and lays out the bank folders so each virtual station loads from the right place.

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