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In-depth Feature:  Future Retro 777
Albert Potts writes: .

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Filter Modulation
The filter modulation section allows the user to modulate the lowpass filter cut-off frequency by the sequencer or CV In jack, the frequency of Oscillator B, and a decay envelope dedicated to the filter only. The FR-777 has a three position CV Type switch that works in conjunction with the CV Amount knob. Again, there’s lots of interaction between the various controls within this synth. In its middle position the CV Type switch is off. In the Normal position the cut-off frequency will follow the same movements as the pitches in the sequencer. In the WARP position the filter cut-off reference point moves according to the pitches in the sequencer, in use basically the opposite of the Normal mode. In Warp mode the CV Amount knob provides the least effect when set to 12 o'clock, and creates a kind of subtle reverse sweeping when dialled to the left. It almost sounds like a little soft white noise around the notes when dialled to the left. Interesting. When the CV Amount is dialled to the right more unusual things happen, depending on the pitches in the sequencer.

To the right of the CV Amount knob is the Wave B knob, which adjusts the shape of wave B from sawtooth to square and uses this waveform to modulate the filter's cut-off frequency. Next up is the Mod Amount knob, which controls how much of Wave B is sent to control the filter frequency. The Envelope Decay and Envelope Amount functions are fairly straightforward. Respectively, the length of the decay envelope for the filter and how much decay envelope will be sent.

After using the FR-777 for a while, I can't stress enough how much control the Filter and Filter Modulation sections give over the sounds. The design is very well thought out, giving the user a large tonal palette to work with. In particular, the Slope and CV Type switches have a dramatic effect on the sounds. Talk about your bleeps, bloops, and chirps!

More Resources              Articles - full listing
  • Future Retro WWW
  • 7-pole filter in action
  • Complete track with only 777 sounds
  • FR 777@synthsite
  • Lager 777 image

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    Vidar Johansen    Said...

    OK. AWESOME! Kind of limited in one way, but if you learn to use it right it´s one of the most exciting monosynths you can come across. There are wild smoothness in the filter/modulation section and it has a few functions which I have never seen in any other analogue synth, maybe best comparable to mks-80/jupiter´s X-MOD. Its solid stuff, and you get even more surprised when you discover the "hidden" soundshaping possibilities it has. I can tell ya, I had a bass-loop going and suddenly i found the spots and got THAT INSANELY FAT groove and by twisting the cutoff knob up and down in sync with the loop, the coolest bassdrum (accent) came out of it. Lovely!

    16-Feb-08 10:28 PM

    ali    Said...

    i need lvl up 50

    03-Aug-08 02:04 PM

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