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DX9
yamaha_dx97
v1.0.2
Firmware

yamaha_dx97

Hype41/100

Alternative firmware ROM for the Yamaha DX9 that restores the functionality of the DX7

yamaha_dx97 is custom firmware for the Yamaha DX9, by @ajxs. Open source under GPL-3.0, latest release v1.0.2 (June 2024), 41 stars on GitHub.

forYamaha DX9·by@ajxs

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0
Stars
41
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4
Commits
119
Last commit
Download v1.0.2

yamaha_dx97_v1-0-2.bin· 16 KB

GPL-3.0· ajxs/yamaha_dx97·downloads come from the creator’s GitHub releases

7 releases
  1. v1.0.2Latest1 file

    This is the 1.0.2 release of the Yamaha DX9/7 alternative firmware ROM. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions. If you encounter any issues, please report them in the 'Issues' tab on Github, or email the lead maintainer (@ajxs) directly.

    Changes since last release:

    • Major optimisations to the portamento, pitch EG, patch event, and keyboard scanning routines. This largely resolves the performance issues associated with the v1.0.1 release.
  2. v1.0.11 file

    This is the 1.0.1 release of the Yamaha DX9/7 alternative firmware ROM. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions. If you encounter any issues, please report them in the 'Issues' tab on Github, or email the lead maintainer (@ajxs) directly.

    Changes since last release:

    • Resolved issue with voice sustain status not being updated correctly.
    • Resolved a major issue where the synth's voice pitch wasn't being updated at the correct rate.
    • Improved performance of MIDI processing.
    • Resolved issue where patch data wasn't reloaded after receiving voice parameter data updates over SysEx.
    • Glissando functionality has been removed to resolve a major performance issue.
  3. v1.0.01 file

    This is the 1.0.0 release of the Yamaha DX9/7 alternative firmware ROM. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions. If you encounter any issues, please report them in the 'Issues' tab on Github, or email the lead maintainer (@ajxs) directly.

    Changes since last release:

    • Resolve minor discrepancy in SCI configuration between this ROM and the DX7/DX9.
    • Resolve issue with the EGS/OPS diagnostic test patches.
  4. v0.9.91 file

    This is the 0.9.9 public beta release of the Yamaha DX9/7 alternative firmware ROM. If you would like to help test the firmware, feel free to download and report your findings. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions. This release is a candidate for v1.0.0. If there are no reported issues, this will become the first non-beta release.

    Changes since last release:

    • Resolve issue with spurious front-panel input signals.
    • Resolve issue with 'Glissando' menu setting displaying incorrect setting value.
  5. v0.9.81 file

    This is the 0.9.8 public beta release of the Yamaha DX9/7 alternative firmware ROM. This ROM binary should be considered for testing purposes only. The major features have been tested, and are all working. Testing is still ongoing, and there is still a small probability of encountering some minor errors. If you would like to help test the firmware, feel free to download and report your findings. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions.

    Changes since last release:

    • The cassette interface input/output/verify functions are now working correctly.

    Known Issues:

    • Glissando On/Off menu item value appears to not persist correctly.
    • Cassette interface error messages are not printed correctly.
  6. v0.9.6v0.9.6 Public BetaBeta1 file

    This is the 0.9.6 public beta release of the Yamaha DX9/7 alternative firmware ROM. This ROM binary should be considered for testing purposes only. The major features have been tested, and are all working. Testing is still ongoing, and there is still a small probability of encountering some minor errors. If you would like to help test the firmware, feel free to download and report your findings. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions.

    Changes since last release:

    • Resolved bug in UI code, where changing between Play/Edit/Function modes could trigger spurious button presses.
  7. v0.9.5v0.9.5 Public BetaBeta1 file

    This is the 0.9.5 public beta release of the Yamaha DX9/7 alternative firmware ROM. This ROM binary should be considered for testing purposes only. The major features have been tested, and are all working. Testing is still ongoing, and there is still a small probability of encountering some minor errors. If you would like to help test the firmware, feel free to download and report your findings. Remember to read the Important: First Time Installation or Upgrade section in the README for important installation instructions.