YAMAHA DX-7 16 voice programmable algorithm synthesizer. The synth engine uses FM and additive synthesis working with 6 sinus operators put together 32 algorithms. There are no filters. The synthesis looks quite strange for users of subtractive analogue keyboards but the sound is unique. Keyboard is velocity and aftertouch sensitive and very nice to play. Unfortunately use as a master keyboard is limited due to absence the Local Off function. DX-7 has only mono output, MIDI IN/OUT/THRU, portamento, modulation, sustain and breath controler inputs. Itīs mono timbral machine (with third party expansion called E! 8-timbral). There are 32 places in internal memory to store user sounds and a slot for cartridge (ROM,RAM : 1-4 banks each 32 sounds). The 16 characters x 2 lines LCD is not backlite (display light kit was available since 1984, this device should be also compatible with DX-9). Weight approx. 14,5 kg. By the way production of this beast was started in 1983. You can also find analog sytle DX-Programmer by German company Jellinghaus. It is a very rare unit - only 25 pcs made.
Yamaha DX-7

SOUND PARAMETERS FUNCTION PARAMETERS

- Operator ON/OFF
- Algorithm select (1-32)
- Feedback (0-7)
- LFO Wave (TRIANGL, SAW DWN, SAW UP, SQUARE, SINE, S/HOLD)
- LFO Speed (0-99)
- LFO Delay (0-99)
- LFO Pitch modulation depth (0-99)
- LFO Amplitude modulation depth (0-99)
- LFO Key Sync (ON/OFF)
- Pitch Modulation Sensitivity (0-7)
- Amplitude Modulation Sensitivity (0-3) - for each operator
- Oscillator Mode ( either FREQUENCY (RATIO) or FIXED FREQUENCY (Hz)) - for each operator
- Oscillator Sync (ON/OFF) - for each operator
- Oscillator Coarse frequency - for each operator
- Oscillator Fine frequency - for each operator
- Oscillator Detune - for each operator
- Envelope generator (4 Levels, 4 Rates) - for each operator
- Keyboard Level Scaling - Break point (A -1, C8), Curve (-LIN, +LIN, -EXP, +EXP), Depth (0-99) - for each operator
- Keyboard Rate Scaling (0-99) - for each operator
- Operator output level (0-99) - for each operator
- Key velocity sensitivity (0-7) - for each operator
- Pitch Envelope Generator (4 Levels, 4 Rates)
- Key transpose
- Voice name

- Voice name
- Voice name


- Voice name

- Master Tune
- Poly/Mono mode
- Pitch bend range (0-12)
- Pitch bend step (0-12)
- Portamento Sustain Key (Retain/Follow)
- Glissando (ON/OFF)
- Portamneto Time (0-99)
- MIDI channel (1-16) - receive channel, DX-7 transmits on MIDI channel 1 only
- Edit recall
- Voice initialize
- Cartridge format
- Battery check
- Cartridge Save/Load
- Modulation wheel range (0-99)
- Wheel pitch (ON/OFF)
- Wheel amplitude (ON/OFF)
- Wheel EG Bias (ON/OFF)
- Foot control range (0-99)
- Foot pitch (ON/OFF)
- Foot amplitude (ON/OFF)
- Foot EG Bias (ON/OFF)
- Breath control range (0-99)
- Breath pitch (ON/OFF)
- Breath amplitude (ON/OFF)
- Breath EG Bias (ON/OFF)
- Aftertouch range (0-99)
- Aftertouch pitch (ON/OFF)
- Aftertouch amplitude (ON/OFF)
- Aftertouch EG Bias (ON/OFF)


http:// Dave Bensonīs page is probably the best resource for Yamaha DX-7 users with thousands sounds and useful links.
Classic synth corner Official Yamaha page with links to editors, sounds, manual in pdf, etc.
Synthzone - Links to software, patches, company pages, etc.
DX/TX-7 - info
Yamaha DX-7 Resource center (including software tools for Win and Mac)
Programming DX-7
Manual online

http:// DX-7 Voice Library with Performance Notes - Appedix to the Userīs Manual - ROM 1 & ROM 2 Cartridges description


Software editors for DX-7
ATARI XE/XL HYBRID ARTS - DX Editor
ATARI ST STEINBERG - Synthworks DX/TX ( very nice software with graphical environment, FFT (Fast Fourier Transformation), etc.
STEINBERG - Sound Voodoo (random generation of sounds, etc.)
STEINBERG - X-SYN (universal editor with modules for 4-op and 6-op Yamaha synths, Roland JX-8p, Oberheim Matrix-6 and Casio CZ series, simple sequencer, mask for random generation of sounds, etc.)
HYBRID ARTS - DX Android
Dr. TīS Yamaha DX Heaven Editor/Librarian
C-LAB - X-Alyzer (Transforming the FM sounds into samples - sending them as a SDS to samplers)
METRA SOUND- DX Supervisor (Graphic Editor with advanced librarian)
SOFT ARTS - AXE
GEERDES - SWS
(universal editor with modules for all DX/TX synthesizers)
GEERDES - DX-Ware Editor/manager
SOUND QUEST (Universal editor with modules for DX/TX series)
COMMODORE C-64 JMS - Sound Editor DX-7/9
C-LAB - DX-7 Support II
STEINBERG - SES
DX-7 editor
COMMODORE AMIGA Dr. TīS - Yamaha DX/TX-7 Editor
Sound Quest - Yamaha DX-7/FB-01
IBM - PC compatible Dr. TīS - Yamaha DX/TX-7 Editor
Sound Quest - Yamaha DX-7/FB-01
BACCHUS - DX/TX Voice Man
MAGNETIC MUSIC - Yamaha DX/TX Pyramid
SONUS - Yamaha DX/TX Design
MIMETICS Corp. - DX-Connect
VOYETRA TECHNOLOGIES - Sideman DTX
EMAGIC - Sound Diver
(universal editing system with modules for all DX/TX )

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