Play GYM files in your browser

Mega Drive music as the console's chips were told to play it. Play a GYM right here and save it as MP3. Nothing leaves your device.

Or drop it anywhere on this page

What you'll see

Your song plays the moment it opens, for as long as the file says and then a fade, its whole waveform across your screen.

Sky Fortress.gym

GYM • 2:41 • Mega Drive • 1.2 MB

  • Its whole waveform • Press or drag to jump
  • Back and ahead 10 seconds • Half, 1.5× or double speed
  • Show tags • Song, game, composer and dumper
  • Export • Save as MP3 or WAV

About GYM

Before VGM, emulators logged the Mega Drive's and the Genesis's music as GYM: every write to the YM2612 FM chip and the SN76489, 60 times a second. A GYMX header adds the song's title, game and composer.

Most of the Mega Drive's music was logged again as VGM, which keeps finer timing, but many old rips are only GYMs.

Filepeek plays it in its own build of Game_Music_Emu inside your browser, the YM2612 through Nuked OPN2, an emulation true to the chip. Show tags names the song and the game, and Export saves it as MP3 or WAV.

Genesis YM2612 log

Format

MIME type
audio/x-gym
Made by
Genecyst, a Mega Drive emulator

Inside the file

Holds
Writes to the sound chips
Chips
YM2612 and SN76489
Timing
60 steps a second
Tags
Title, game and composer in GYMX

Opens in every browser

Filepeek plays GYM files in Chrome, Edge, Firefox and Safari. No browser plays them by itself.

  • YouChromePlays through Filepeek
  • YouEdgePlays through Filepeek
  • YouFirefoxPlays through Filepeek
  • YouSafariPlays through Filepeek

Apps that open GYM

  • Windowsfoobar2000 with foo_gep, and VLC
  • MacVLC
  • iPhone and iPadModizer
  • AndroidZXTune

Questions

How do I play a GYM file?

Drop it on this page or choose Peek a GYM. It plays right away in your browser.

What's the difference between GYM and VGM?

Both log what a game told its sound chips. GYM only knows 60 steps a second and the Mega Drive's chips, while VGM keeps exact timing and covers dozens of systems. Both play here.

Can I turn a GYM into an MP3?

Yes. Choose Export, then Save as MP3 or WAV.

More audio formats

All supported file types

Opens in a new tab

EXIF

Verify

License

Signature