This is one of the coolest feature of The River! It let's you program and edit e.g. a 4-voice polyphonic sound with 4 oscillators, 4 LFOs.
My favorite is to
- load the same single to two channels (4 voices each), set MODE:ALL
this will let you play the same single with 2 voices per note
- set SYSTEM:PROPAGATE:YES and start tweaking.
Every knob will affect both channels at the same time, keeping the channels in sync with each other
- finally, set SYSTEM:PROPAGATE:NO and tweak an LFO of just a single channel.
Both channels will no longer be identical, but the added complexity is incredible!
now, the problem with PROPAGATE is that it doesn't always work as expected.
Sometimes, it takes a couple of on-and-offs, for MODE:ALL, CHANNEL or SYSTEM:PROPAGATE:YES, for it to start working.
This could be related to the general problems with loading singles and multis. Sometimes you need to try several times, before it loads properly.
another bug:
- load the same single to two channels (4 voices each), set MODE:ALL
- switch to CH1
- set SYSTEM:PROPAGATE:YES and change a waveshape for DLFO.
-switch to CH2 - the selection of the DLFO waveshape will show the old value
an inconvenience:
S+SYSTEM doesn't remember where you left off, so you'll have to navigate to PROPAGATE every time you press S+SYSTEM. It would be great to have a shortcut to turn it on or off. Maybe a double tap on the MODE button?
OK, I investigate ;)
thanks, did some more investigating of my own and I found a repro for a voice allocation bug.
- change MODE to ALL
- select Channel 1
- allocate Voice 1-8 to Channel 1
- select Channel 2
- allocate Voices 5-8 to Channel 2
- go back to Channel 1
Channels 1 and 2 should be playing at the same time, but they are not. It takes a lot of random channel and mode switching to make it work.