FM-800By Atom Smasher Filter Mod for Korg EX-800 and Poly-800

Samples, Reviews, Technical Comments

atom@smasher.org

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Samples

 gzipped WAVMP3Notes
Madness #1
<David Mochen>
  mp3
2M
Original sound played first, no mods involved. Sequencer running fast, arpeggiator-like. Nice unwanted side-effect of having an external pot for white noise, the synth picks up some radio waves which then get processed by the filter (I'm gonna take care of that with a shielded cable but will try to keep the "antenna" as an option). Then I kick Moogslayer in with reso to the max and begin fiddling with cutoff (BTW I used a 100k pot, sound gets more filtered anti-clock wise, also installed the switch for toggling between factory and MS). Instant R2-D2. Then judicious amounts of FM-800 are applied, some joystick... Sequencer off and real-time playing and fiddling. Later I set parameter 84 (VCF mod) to 01 and param 81 (LFO speed) to 00 for a slow, stepped quantized modulation of the filter. Ah, can't stop those knobs from turning!!
Madness #2
<David Mochen>
  mp3
2.0M
Original first, then moogslayer with 12dB filter slope. Then FM-800... then various keypressings and fiddling with the knobs.
Madness #3
<David Mochen>
  mp3
3.0M
Original first, then a combination of all effects...
Sweeping Bass
<Justin Pope>
  mp3
809K
Sweeping bass sound tweaked with Moog Slayer and FM-800 modifications.
dtron fm-mod
<Randy Dever>
  mp3
1.2M
Recorded running bare naked into Audacity. First 10 seconds are just to establish a baseline, then I open up the cutoff, then bring up the resonance to make it sing, then I let the FM kick in, open it up pretty much all the way, then get scared and bring it down and play with the joystick a bit, then out.
Poly Loves Hell
<Manuel Montoto>
  mp3
659K
It's the standard sound 27, last two keys pressed (B and C). It starts with resonance pot set to 0%, about 10% of the cutoff knob, and 0% of FM knob. Then, I added about 10% of the FM knob, and then added more on the cutoff knob...
Fm800-Test03
<Manuel Montoto>
  mp3
525K
Normalized with Sound Forge
Fm800-Test04
<Manuel Montoto>
  mp3
1.1M
Normalized with Sound Forge
Fm800-Test06
<Manuel Montoto>
  mp3
503K
Normalized with Sound Forge
Fm800-Test08
<Manuel Montoto>
  mp3
696K
Normalized with Sound Forge
Noisy SFX
Tim Bieniosek
  mp3
596K
Arcade game sounds (Alesis Micro Limiter)
Hi-Q Filter
Tim Bieniosek
  mp3
114K
(Alesis Micro Limiter)
It Might Be Music
Tim Bieniosek
  mp3
521K
(Alesis Micro Limiter)
Scale
Tim Bieniosek
  mp3
134K
Showing irregularities in the "FM" effect across frequencies (Alesis Micro Limiter) [It may not be good enough for some kinds of music, but it sure sounds good for techno! -atom]


Reviews
Technical Comments


Looking for a used 800 series synth:
Pictures Tim Bieniosek's FM-800 page.