This will reset the synth to a fresh, safe state.

To initialise all of the synth's voice data, and parameters, hold the FUNCTION button as the synth boots up.

This is due to the locations of important data in the synth's RAM having changed. Important: Back up your patches before installation!Īfter installing this firmware ROM all of the synth's patch data, and internal parameters will be filled with random data. All care has been taken, and considerable testing has been performed, however the developers accept no liability for any issues. The risk of any harm coming to your DX9 as a result of using this ROM is incredibly, incredibly small, however the developers take no responsibility for any issues that may arise as a result of using this alternate firmware. If you still want to use the ROM, please be sure to read the section on reporting issues.ĭevelopment, and testing of the cassette interface is ongoing, and at this point it should only be used for testing purposes. This situation will improve over time as additional testing is performed. Installing the firmware for everyday general use isn't recommended just yet. The main features are fully working, however testing and bugfixing are ongoing. This firmware is currently highly experimental. Implements DX7 style portamento/glissando.The synth is now sensitive to the velocity of incoming MIDI notes.Makes the DX9 able to play DX7 patches.It has been assembled from the original binary, together with code from the DX7's V1.8 ROM, as well as new code written from scratch. This is not a patch for the existing DX9 firmware, it is an entirely new firmware ROM. This ROM makes the synth properly patch-compatible with the DX7.

It restores features that were intentionally restricted in the firmware, such as increasing the operator count to six, and adding a pitch envelope generator. Its aim is to uplift the DX9's functionality to more closely match that of the DX7. Yamaha DX9/7 Alternative Firmware ROM What is this?ĭX9/7 is an alternative firmware ROM for the Yamaha DX9 synthesiser.

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