Quad Cortex CorOS v3.0 - Transpose Testing

[@StupidGuitar]

Yeah it’s still a monophonic shift so “pretty” chords tend to struggle. Power chords seem fine in my experience too. Glad you did the test

[@davlavmusic7070]

I think what's happening is that you've got two notes so close in pitch is confused as to whether there's actually two notes there or just one. The weird sound is similar to what the pitch correction does when the glissando is set to 0.

[@StupidGuitar]

@@davlavmusic7070 yeah gets a little bit of that synthy auto tune vibe

[@dannyblau3850]

I found the same thing. I found that not only power chords, but if you have light/medium gain to heavier gain sound and do full chords it holds up and masks the sort of artifacting. Just not really going to fully sort that out until there is a poly version. but in a lot of ways it's a solid improvement. Also did notice on certain patches the pitch shift tended to be a bit brighter. At first i thought the transpose was maybe rolling off but i realized i was just used to patches i had the pitch shifter on it just is a bit brighter where the transpose seems to retain the tone as is a bit better.

[@chryzis8322]

I experienced the same thing. Both sounded kinda similar when I player through my speakers at home. But when I player through my Inears and wireless system in our rehearsal room the Transpose seemed to have way more low end, which made my down tuned presets (one for - 2 half steps and one for a song that needs - 5 half steps) unusable, so I switched back to the pitch shifter.... I don't know why this happens as everything sounded similar at home...

[@StupidGuitar]

This

[@mahall85]

Despite the artifacting, to my ears, the new Transpose sounds cleaner than the Pitch Shifter. Like others have said, I hope the QC gets a polyphonic pitch shifter. The QC loves to boast about its processing power, so you’d think it’s well-suited to handle such a task.

[@its_lucos]

I really do hope Neural DSP is currently working on a polyphonic transpose.

[@StupidGuitar]

It’s a LOT of CPU. It’s a solved math problem but it’s going to be hard to make it a block that doesn’t destroy your ability to do much else in the device

[@its_lucos]

@@StupidGuitar I bet! but how come the line 6 units are able to manage that with the Poly Capo block?

[@StupidGuitar]

@@its_lucos they may be cheating the math or have custom HW for it. Or they may be OK sucking a ton of CPU for it.

[@elbeeuk]

Yeah, the mono poly capo block in the helix uses 48% of a single DSP path. 54.5% using the stereo block, so it does eat the DSP

[@MrMelodyCold]

how about the latency? do you think it's instant? or it's pog like?

[@davlavmusic7070]

I think the latency is pretty minimal. When playing fast runs it tracks pretty well.

[@TonecraftMedia]

This is the SOLE REASON my $1800 quad cortex has been sitting on a shelf collecting dust for the 2 years that I've owned it. If my 12 year old kemper handles polyphonic pitch shifting effortlessly, there's no reason this "modern" unit should barf all over itself like this. Without a polyphonic transpose feature, I have to carry 2 more guitars to live shows... just for one song.

[@alexanderwald2046]

If I were brutally honest, I would say this is yet another blackbox / useless feature in QC

[@davlavmusic7070]

I get that. It's definitely something that I'm not likely to use much. But I think many other folks do. I know the Transpose is something that's built into most of the NDSP plugins.