fm-pair engine additions #14

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opened 2026-08-18 02:15:00 +00:00 by bcox · 3 comments

bcox commented

2026-08-18 02:15:00 +00:00

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Put a filter at the end of the layer chain? Or an EQ?
A formant filter?
Put The FUN equations into the mod vias
per-layer aux sends?
effects in the voice's layer mixer? (see sends above, or inserts like compressors)

- Put a filter at the end of the layer chain? Or an EQ? - A formant filter? - Put The FUN equations into the mod vias - per-layer aux sends? - effects in the voice's layer mixer? (see sends above, or inserts like compressors)

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2026-08-18 02:15:12 +00:00

bcox commented

2026-08-19 04:00:05 +00:00

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Dedicated formant filter? No. Filter at end of layer: maybe. FUN equations: yes, replace the "*" in the via expression with a FUN.
The layer will (later) get the eq/compressor/etc.

Dedicated formant filter? No. Filter at end of layer: maybe. FUN equations: yes, replace the "*" in the via expression with a FUN. The layer will (later) get the eq/compressor/etc.

bcox commented

2026-08-22 18:35:36 +00:00

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Owner

OK, so far, we've added:

A second modulator with an independent set of lanes
A one-band formant filter on the modulators
A three-band formant filter on the carrier
Multiple independent timeframe lines (one 512-entry, up to three more 64-entry); independent speeds, curves, looping
An unvoiced formant engine (not part of the fm-pair engine)

We have not, and are not going to, do per-layer aux sends. Per-layer effects belong in the voice mixer, not the engine (though I could be convinced otherwise).

What we will add:

A DX7-style/NED-style FM/PM switch (it is not a mod destination)
A nonlinearity in the mod matrix (map a source through a transfer function)
Named modulation busses as destinations and as 1-sample-delayed sources (get the value computed last sample)

(Those last two can be reused in other engines)

OK, so far, we've added: - A second modulator with an independent set of lanes - A one-band formant filter on the modulators - A three-band formant filter on the carrier - Multiple independent timeframe lines (one 512-entry, up to three more 64-entry); independent speeds, curves, looping - An unvoiced formant engine (not part of the fm-pair engine) We have not, and are not going to, do per-layer aux sends. Per-layer effects belong in the voice mixer, not the engine (though I could be convinced otherwise). What we will add: - A DX7-style/NED-style FM/PM switch (it is not a mod destination) - A nonlinearity in the mod matrix (map a source through a transfer function) - Named modulation busses as destinations and as 1-sample-delayed sources (get the value computed last sample) (Those last two can be reused in other engines)

bcox commented

2026-08-22 18:37:08 +00:00

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Also: portamento/glide (per-layer) -- but that's a part of the voice engine

Also: portamento/glide (per-_layer_) -- but that's a part of the voice engine

bcox referenced this issue

2026-08-30 15:19:55 +00:00

FM/PM switch #44

bcox closed this issue

2026-09-05 12:57:18 +00:00