Hacking the FS1r Part1 – Zeeedit Patch Editor v2

A new version of Zeeedit was released on Jan 1st 2013. PC only.

People may well quibble about the license terms (42 euro locked to one computer), however I think it is an excellent investment if you intend to get serious use from the FS1r.
Sakura is also excellent, but Zeeedit wins on presentation – everything is laid-out beautifully in comprehensive overviews. This makes the FS1r very accessible to me. YMMV.

I decided to record my largely incoherent ramblings on Zeeedit – doing so provides an overview of the FS1r architecture. This will bore the hell out of 99.99999999% of people. But I think it might be be useful to the new FS1r owner struggling in the waves. Hence, and for posterity…

No loud noises in these ones…

[youtube http://www.youtube.com/watch?v=UR98jAaxxu4&w=400&h=255]

[youtube http://www.youtube.com/watch?v=RYLjHvvILjM&w=400&h=255]

FS1R – LSBP (Level Scaling Breakpoint)

The LS BP (Level Scaling Breakpoint) parameter sets the key which will be at the center of the level scaling curve (see diagram below). The LS LeftCrv and LS RightCrv parameters specify the type of level scaling curve which will be applied to the left and right of the breakpoint, respectively: -lin (negative linear), -exp (negative exponential), +lin (positive linear), or +exp (positive exponential). Please note that the LS BP will shift in accordance with the settings of the Note Shift parameters (pages 24, 40, 59, 71). The LS LeftDepth and LS RightDepth parameters specify the depth of the curve on the corresponding sides of the breakpoint.

KVR topic – FS1R

Interesting tidbit from KVR circa 2005:

What makes the FS1R so unique is the extended battery of FM operators it offers. If you look at the classic X7 generation of FM ‘algorithms’ – the various ways in which operators can be routed together – there’s always at least one in which the operator feeds back into itself. This allows the operator to generate a waveform that is almost (but not entirely) random white noise, and is the only means by which an FM synthesizer can make plosive, textural and percussive sounds.

The great problem this causes is that these noise generators often have long periodic cycles that often (but not always) cause a cycling inharmonic interference to appear in extended notes. Try any X7 pad patch on a synth such as FM7 or a DX200 and you’ll probably (but not certainly) hear strange periodic shimmers, gargling and sibilance in pads that should be completely smooth when the note is held on for long periods. This distortion is a killer because it’s uncorrelated to the pitch of each note, varies with the pitch of each note and is almost impossible to equalize out.

The FS1R has 8 voiced operators (which generate the pitched tone) and 8 unvoiced operators (which generate enveloped white noise) allowing the creation of patches that have massively lower transient cycling in held notes, and the exertion of formants, allowing the strangest most ethereal voice pads any synth makes. This is further enhanced by a range of expressive change both across the keyrange and across note velocities that I’ve never encountered in any other synth.

— HanafiH

via KVR :: View topic – FS1R