High resonance-like noise although res is set to 0
Posted: Wed Sep 10, 2014 12:08 pm
Hey,
haven't been using my SP for a while, so I decided to get back at it today. While playing I've noticed some high frequencies in the patterns that just didn't feel right. So I looked at the spectrum of the SPs output using the calibration preset (fully open filter, no res) and just playing a C3. Seems with the filter set to 3 or 4 poles that noise is there (at 10kHz with 4 poles and at ~13kHz with 3 poles) while the peak is not there with 2 or 1 poles on the filter. I've attached screenshots for visualization. That's not right, isn't it? What are potential reasons for such a behavior?
Thanks.
Filter Poles: 4 Filter Poles: 3 Filter Poles: 2
haven't been using my SP for a while, so I decided to get back at it today. While playing I've noticed some high frequencies in the patterns that just didn't feel right. So I looked at the spectrum of the SPs output using the calibration preset (fully open filter, no res) and just playing a C3. Seems with the filter set to 3 or 4 poles that noise is there (at 10kHz with 4 poles and at ~13kHz with 3 poles) while the peak is not there with 2 or 1 poles on the filter. I've attached screenshots for visualization. That's not right, isn't it? What are potential reasons for such a behavior?
Thanks.
Filter Poles: 4 Filter Poles: 3 Filter Poles: 2