Hexter is a software synthesizer that models the sound generation of a Yamaha DX7 synthesizer. It can easily load most DX7 patch bank files, edit those patches via a built-in editor or MIDI sys-ex messages, and recreate the sound of the DX7 with great accuracy.

Release 1.0.0 adds significant capability to Hexter over the 0.6.2 release, including:

• An integrated patch editor.
• The option to use floating-point math in the synthesis code instead of fixed point.
• Performance optimizations.
• Better patch bank loading.
• MIDI non-registered parameter (NRPN) support.

Hexter is licensed under the GNU General Public License, version 2 or later.