Pitch shifter causes harmoniser like effect when listening on speakers

CorOS Version: 1.03

Describe your issue:
When I use the pitch shifter while listening via the speakers (PC speakers with subwoofer) I can clearly hear both the original and pitched sound at the same time creating a harmoniser-like effect. This is not the case when listening via the headphones (Bayerdynamic DT 770 Pro 80 ohm). It makes no difference whether I route everything via my audio interface (Audient id4 MKII) or go straight from the QC. This effect get somewhat covered up while playing rhythm parts but becomes very audible as soon as I start with my lead parts. Others in official Neural DSP Facebook QC User Group have also confirmed they experience the same behaviour.

Steps to reproduce your issue:

  1. Pitch shifter block added as first block in the signal chain
  2. Change the pitch coarse to your desired value (Mix at 100%), I would usually go 2 semitones up or down from my standard D tuning
  3. Harmoniser like effect during lead parts while listening on the speakers

I expected this to happen:
When I engage the pitch shifter and listen via the headphones (same output in my audio interface as for the speakers) the pitch change effect is perfectly working whatever I play and I can clearly hear only the pitch changed sound. I would expect for this to be case while listening via the headphones or the speakers.

I have tried the following things:

  • I have tried connecting the headphones and the speakers directly to the QC (same effect, all good on the headphones, harmoniser like effect via the spreakers)
  • I have tried using both headphones and OUT 3 or 4 outputs
  • I have tried moving the pitch shifter block in the signal chain (before or after the noise gate)
  • I have tried different speakers (please note none were proper studio monitors but others responded to my Facebook post that it’s the same story whatever speakers are used)

through headphones too!

Can you share a picture of the preset?

No other paths?

No, but frankly it makes no difference how complicated or simple the preset is.

If I am reading you correctly, when you are using your headphones you are not experiencing this issue, and your headphones are connected to the same interface as your speakers, which isn’t the QC.

Assuming this is the case, I think your problem is that when connected to speakers, you are hearing the acoustic sound of your guitar, which obviously isn’t pitch-shifted, and you aren’t hearing this when you have your headphones on (for obvious reasons).

I feel really silly now but, having tried to pick the strings very lightly, you are absolutely right. I just wasn’t expecting for the acustic sound to be still coming through with my speakers volume cranked up but it is clearly still audible. Thanks.

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I was just getting ready to tell you you are just hearing your guitar acoustically and seems like you already got it from someone else.