|Price||$2,166 US |
|Oscillator||16 bit 2MWord (4MB) PCM waveform ROM (100 multisounds + 44 drum sounds)|
|Synthesis type||Digital sample-based subtractive|
|Filter||VDF (Variable Digital Filter), low-pass velocity sensitive (non-resonant)|
|Attenuator||3 independent AADBSSRR envelope generators|
|Storage memory||100 programs / 100 combinations / 4400 sequencer notes or 50 programs / 50 combinations / 7700 sequencer notes depending on global settings, and 10 songs + 100 patterns|
|Effects||Reverb, delay, phaser, tremolo, exciter, ensemble, overdrive, EQ, chorus, flanger, rotary speaker|
|Left-hand control||Spring-return joystick (pitch and modulation)|
|External control||MIDI IN/OUT/THRU|
Korg chief engineer Junichi Ikeuchi led the hardware engineering design of the M1. Whereas previous synthesizers had shipped with sounds chosen for different markets, Korg chairman Tsutomu Kato and his son Seiki decided that their synthesizers should use the same sounds internationally. Korg assembled an international team to develop the sounds for the M1. To create a deep blown bottle sound, the team played a pan flute over a large sake bottle.
The M1 features a 61-note velocity- and aftertouch-sensitive keyboard, 16-note polyphony, a joystick for pitch-bend and modulation control, an eight-track MIDI sequencer, separate LFOs for vibrato and filter modulation, and ADSR envelopes. Data can be stored on RAM and PCM cards.
The M1 has a ROM with four megabytes of 16-bit PCM tones, including, according to Sound on Sound, "exotic instruments that previously hadn't been heard in the mainstream". The sounds include sampled attack transients, loops, sustained waveforms without attack transients, and percussive samples. The timbres include piano, strings, acoustic guitar, woodwinds, sitar, kalimba, wind chimes, and drums.
The M1 also features effects including reverb, delay, chorus, tremolo, EQ, distortion, and Leslie simulation, an innovative inclusion at the time. According to Sound on Sound, none of the M1's features were unique at the time of release, but were implemented and combined in a new way.
The Korg M1 is the bestselling synthesizer in history. It was released in 1988 and manufactured until 1995, selling an estimated 250,000 units. Sound on Sound wrote that it "can rightly be called the most popular synth of all time".
- Korg M1 Super Guide, The Next Generation in Sound Synthesis --- The AI Synthesis System, p13, Multisound List, Korg Inc. Japan
- Korg M1 Super Guide, The Next Generation in Sound Synthesis --- The AI Synthesis System, p14, VDF EG, Korg Inc. Japan
- Korg M1 Super Guide, The Next Generation in Sound Synthesis --- The AI Synthesis System, p44, Specifications, Korg Inc. Japan
- Colbeck, Julian (June 2001). "Korg M1". Electronic Musician. Archived from the original on 23 Sep 2004.
- Vail, Mark (February 2002). "Korg M1 (Retrozone)". Sound on Sound. Retrieved 6 November 2019.
- "A Beginner's Guide To The Synth". Gizmodo Australia. 2015-12-29. Retrieved 2019-04-28.
- Korg M1 video demo and review in Japanese