Dave Polich says 128 polyphony no matter what combination of engines. All the literature says 128 awm2, 128 fmx. If you layer AWM2 and FM can you get 256 sounding voices of polyphony? If not, why bring up 128 AWM2 and the 128 FMX? Can this keyboard sound 256 different notes at one time?

aron - 12 February 2016 03:30 AM

Dave Polich says 128 polyphony no matter what combination of engines.

Can you give me a link?

All the literature says 128 awm2, 128 fmx. If you layer AWM2 and FM can you get 256 sounding voices of polyphony? If not, why bring up 128 AWM2 and the 128 FMX? Can this keyboard sound 256 different notes at one time?

The specs say “maximum polyphony” for both engines.

The answer depends on implementation details which I am sure will be disclosed after the official product launch.

Maximum polyphony would be dictated by both the number and routing of FM operators in an algorythm for a FM-X part, the number of Elements in an AWM2 part, AND the internal structure of voice allocation.

Assuming that the FM-X is a spectral modelling engine (a development of SCM from CP series), it could either use its own dedicated tone generator chip(s), in which case it’s 256 total limit, or share polyphony with AWM2 voices/notes, for a total limit of 128. If the FM-X engine uses a dedicated ASIC, then each engine has its own 128 note limit and a total limit of 256.

DmitryKo - 12 February 2016 06:19 AM

Assuming that the FM-X is a spectral modelling engine (a development of SCM from CP series), it could either use its own dedicated tone generator chip(s), in which case it’s 256 total limit, or share polyphony with AWM2 voices/notes, for a total limit of 128. If the FM-X engine uses a dedicated ASIC, then each engine has its own 128 note limit and a total limit of 256.

Quote from Bad Mister: “In Montage the new structure allows twice as many stereo notes to happen at once. The FM-X engine’s polyphony is totally separate from the AWM2 pool of polyphony. They do not impact each other at all in terms of polyphony.”

That sounds to me like 128 (AWM2) + 128 (FM-X) of polyphony…

Link: https://yamahasynth.com/index.php?option=com_easydiscuss&view=post&id=5009&Itemid=851#reply-5509

Regards, :)

Jo

http://www.motifator.com/index.php/forum/viewthread/476626/

philmagnotta - 02 February 2016 09:33 PM
Yamaha states that it has 128 stereo voice polyphony in AWM2 engine. That’s nice but, there is some confusion or lack of clarity about polyphony across the whole montage system. Yamaha states that in the AWM2 engine, mono voices are still at 128. So 128 voice poly stereo or mono. Normally, x number of stereo voices is doubled in mono. Example, in the motif-XF you get 64 voice stereo/128 mono. This is fairly standard across the synth workstation market. Montage offers 128 stereo/128 mono-Curious! And even-though the other engine, the FM type is listed at 128 voices, Yamaha never says mono or stereo, so you can be sure it is probably mono. What I want to know is whether the system puts out 128 voice FM PLUS 128 voice AWM2 simultaneously. Does anyone know?

DAVE POLICH:

It’s 128 voices, either stereo or mono, period, divided amongst the parts. So if you have 8 parts in a performance, 4 of them AWM,4 FM, you still have the 128-voice poly limit. Obviousy
if you’re playing an 8-part performance and playing lots of notes and using the sustain pedal, you will run out of polyphony.

Sounds like we have conflicting reports. So the real question is that inside an 8 part performance of all, either FMX OR AWM2 voices, you would only have 128 total poly. BUT If you have a combination of FMX/AWM2 then each would have 128 separately (256 total possible, not probable) because you have 2 independent engines that aren’t impacted by one another. This would make some sense although I’m just guessing here. So is the answer “both” depending on the circumstances? If you have (2) independent engines running in parallel, as if you had (2) rack tone generators MIDI’d together, then 256 would be possible if each engine were to reach 128 notes independently. Obviously there’s no poly sharing between the (2) engines.