Is this a polyphony issue?

mocando · Post by **mocando** » Mon Jul 19, 2010 2:41 am

I'm using a combi for Firth of Fifth Genesis song. Is constructed as follows:

Track 1: Drawbar emulation bar 1
Track 2: Drawbar emulation bar 2
Track 3: Drawbar emulation bar 3
Track 4: Drawbar emulation bar 4
Track 5: Drawbar emulation bar 5
Track 6: Drawbar emulation bar 6
Track 7: Arp Pro Soloist Trumpet sound
Track 8: Mellotron Choir velocity layered over the organ

All drawbars are layered at full velocity over each other. The lead is set to another midi channel, so it plays on another surface.

At the moment when I hit the organ keys hard, so the choir surface, the lead looses a bit of volume, but briefly. After a couple of seconds it regains its full volume. Sometimes I completely remove my hands from the lead sound and hit the key again trying to get the volume up.

I really have no clue what it might be happening, but I'm thinking on two things, polyphony and legato mode.

What do you guys think ?

kikedeolivos · Post by **kikedeolivos** » Mon Jul 19, 2010 2:46 am

Maybe you need to check the Volume Envelopes of the aggravating sounds?

mocando · Post by **mocando** » Mon Jul 19, 2010 3:12 am

kikedeolivos wrote:Maybe you need to check the Volume Envelopes of the aggravating sounds?

Hmm, it does sound like an envelope triggering. Will check it out. Thanks kike.

kikedeolivos · Post by **kikedeolivos** » Mon Jul 19, 2010 3:14 am

De nada amigo.

Rishat · Post by **Rishat** » Mon Jul 19, 2010 3:30 am

I am 99.99% sure that its not a polyphony issue. +1 with kike check the volume envelopes. That might be the solution...

kanthos · Post by **kanthos** » Mon Jul 19, 2010 2:40 pm

If you're exceeding polyphony, notes will drop out entirely, not just get quieter.

mocando · Post by **mocando** » Wed Jul 21, 2010 2:52 am

There is an envelope issue here, but still I think is part of the way the patch is programmed, I mean, is on purpose. That means, I got to play the song on staccato to retrigger the envelope. Since is a complex Tony Banks lead, is hard to play staccato at speed.

Is there a way to set the patch so I can play legato and still trigger the envelope on each new note ?

X-Trade · Post by **X-Trade** » Wed Jul 21, 2010 10:46 am

There should be an option called 'retrigger' in the basic settings where mono/poly and single/double/drum mode is selected and such.

Or something like that.

synthjoe · Post by **synthjoe** » Wed Jul 21, 2010 5:05 pm

Couldn't it be some internal 'limiter' function? I would think of something implemented on purpose that kicks in when the digital sum exceeds the range of the D/A converter. Maybe lowering the overall levels of the EGs would bring a solution... Just an idea to try.

TonyGen · Post by **TonyGen** » Wed Jul 21, 2010 9:33 pm

Martin, I'm lost on what the problem is now. Do you think the lead (mono) synth sound is causing the choir sound to lose volume or is it the organ?

Have you tried replacing the choir sound with another sound to see how that behaves?

BTW As far as I know there is no mellotron choir in Firth Of Fifth (do you mean mellotron strings?)

BW. Tony.

mocando · Post by **mocando** » Thu Jul 22, 2010 6:03 am

TonyGen wrote:Martin, I'm lost on what the problem is now. Do you think the lead (mono) synth sound is causing the choir sound to lose volume or is it the organ?

Have you tried replacing the choir sound with another sound to see how that behaves?

BTW As far as I know there is no mellotron choir in Firth Of Fifth (do you mean mellotron strings?)

BW. Tony.

Yeah, I meant strings. But is fixed now. I found a great Arp trumpet sound that hits the nail by the head.

holdsg · Post by **holdsg** » Thu Jul 22, 2010 6:31 am

I am finding I am having the same or similar problem with a multi-layerd combi (this one's for Comfortably Numb). When I play the strings parts (two tracks) and bass part (one track) and the exact same time, the bass part volume goes way down. Have to play them slightly off from each other, which is not ideal. I have the bass and the string parts split into different regions of the keyboard, and they do not overlap, those regions. Do you think this could be caused by the same issue?

I am a complete noob at programming this thing, doin good just to compile combis. So what should I try to tweak? Need it in settings/menu kind of language. Any help is appreciated.

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Is this a polyphony issue?

Is this a polyphony issue?

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