Guitar82089 Posted July 29, 2020 Share Posted July 29, 2020 Hi everyone - So I’ve been messing around with various signal paths and am getting a very strange polyphonic cancelling when doing a wet/dry split/sum. Has anyone encountered this or can think of a solution? Path below: Block 1: Minotaur SPLIT PATH A: (Block 3) FX Loop Block (use for my analog drive stages) Path A (block 4): Chorus Path A (block 5): univibe Path B (block 2): Transistor Tape Signal Combined Again The sound is very pronounced on my high e- string. I’m not running a stereo rig, so have been faking a split path within the unit. When I rearrange into a series path, this issue goes away but then I don’t get to do a split which I really like. Have also tried rearranging the blocks and am still getting the issue. It occurs with/without the modulation effects on, but strangely goes away when the FX loop block is off. I can try to record it and post a link but not sure if anyone has seen this. I assume it has to be a phasing issue. Quote Link to comment Share on other sites More sharing options...
bassbene Posted July 29, 2020 Share Posted July 29, 2020 The problem is the FX Loop block: It adds a small delay due to D/A and D/A conversion. This will delay the signal by a certain extend and Helix will not compensate for that in parallel paths. This could result in some phase cancellation issues. A "fix" - no, let's call it workaround - would be to add another FX Loop in PathB and just connect FX Send to FX Return with a patch cable. This would add the DAC conversions to this path as well, so that theoretically both paths should be in sync again. 1 Quote Link to comment Share on other sites More sharing options...
Guitar82089 Posted August 3, 2020 Author Share Posted August 3, 2020 @bassbene Thanks for the advice. I followed your lead and played with different block options under the FX loop header, of which, Return R happen to work without plugging in an additional patch cable. Definitely a bummer to have to use up a block for this but glad to have a solid workaround. I also found that the system worked nicer when I mixed the wet signal back in prior to the rest of my modulation effects. I don't mind if my trails have chorus on them, etc... more the drives that can muddy up the mix real quick. Thank you! Quote Link to comment Share on other sites More sharing options...
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