[BUG?] Distortion when using FilterFast in MSF

[vanerio]

Hi!
Here's a preset where FilterFast creates a rate reducer-like effect. I don't know why it happens. I was trying to fastly modulate the fundamental of the sound and I found this. It does not happen with other filters.

MSF preset:

Code: Select all

$eNq9WF2IZEcVPjPmIXmIGJSABGS0FUFGbt-unh-y0lvTP7NNpnfuTndm70YIqbn3THc51VVNVXXv9D4sIsQ-RsxbSBSTF0FB8QcfYliyaxLCBl+yYtaFgAnogkHFFQTRJ6l7++f27PR2b694H5q+Vd9Xdc53Th3uKahu+H61JjsiLNPASNXTaAwTDQ0kBe4CSW1yuUe5rtO96JUUi9g2TQghej7Ik9SuZAETjQFik7MQPVTbgaFdBBdIahe5DJjp7VDRwAEVgOyi0kwKyMHiI0BOn32yrWmrzZloWFopZEaqGruIJap7oN1sOru87q4nZ0C7uZWV5fWVHJBCRykUxlOo0VSKoIu0y8JLlTOV+tIXl55gwcFSQSE1UgGpdrhhHlW0hQaVLkjOaVtjaPf1GBVyl+GFsdEqPdwqb29wGRxEG7tLxPI5R84uUmPdcBfI1k6tzZkxGFnn9n39xnOnjs1kBirczhOPdxpMgB4LA-i1zl48MxyJX2vDANWQY2AwHCyQXnb7UbvT2D5ZD1YB4luvztufM7SFoLd1wDiP5Sl3OD8+uhSJoA8qAlzwN6g4SINzh01x0jwpmJaiJOgex4SKCyTlMRM0qzJE0AUptKHCAEnVsMWMFKghXP-lte5rL21cJakCCqMHOp2-SlLeuWrMLDJtVw4hGksk1Al+V7eLqV3JOy0EEhsUhXMsi2-nSUF2hAF3wd9Jw-CFaBWkQRNjaHCwlEkssODXFRV6X6pWFPs0kJqg7brcVCz0LXX0et7CPcmsp8HhcM8rpN5rI+iyQrTaljlt6A1wj5wB+DBhXy-xf4R0HCdycKTfffroQn-FWPz-xWq1Jm0jkFq95Hk7pVqpbtPnKSlb-V8bNB-Cw26l+frnfpx3IqeOJ+lCP0nLjBtUZapNMklHo0tTU7MM4Tu-OlLf-eRDV0nqLIRH5Jlb73zmvTxJxeHwkB4ASW15J2ZqtVKseEo2FG0VmraaxQJFZSM5XKAGG1Kxi6gmFI-hsSCC8t5FVB4VyK02Vv5Nar3vS-69N5d+pprXZ5I8ayUfLOlmgdRkRwUI7iKptaQ0TYFaQ-jiC-b5UZ7sUCb25IVRYpNzTITyQizGaSoEEHLIbIWUCnS6-wCxmX180B9tURJdIKUzu4OQLzq+p3A-CpSt74kc-8ofPv+7B67-c5TX306egJf-9dAKyT1yKjHr+MRLJw8jsUHT0alryguRVbuUd9AOOfGTKKf+LJU0Pb2S2lVj1d0xY7ZQNEwT3I+QqgzZfm+g9od5vyS6yGUbh+73ILz570tfvmz+mCcBhJ949i9nX-nUu1dOliJZDE6--5vG2uXLSdGG5mRONGdhtDshWrPGIHMTtgx3CO4oU-YkJMvUmGV-uvHq83+tPB9Z9tYPX16+dOVmfgJvrLy98fCj37z1659GvFf-8+JHH3j897PsfdTPZd+F8Ll-vPeD7x-9PZ9c9ju9vz3+6NdeGa+aM5jz6XdvvnDtJ7dmwt5RjRMByM4XgGCqtWOiNz-24bOPLb+ev8fAjXnx89WnX-vSn6-nZxB6sMWsIuT+LyLcfvjjl7969q37EuFuXqzA0PTFSaaP17kBc3Vu5trczPU5mJ6SAWrtQoKQgDw4gmSmQ7LTIbnpkJXpkNXpkLXpkPW7QEqi64JfV9iSXE7+iHFiaGZ2aHZ2aG526Mrs0NXZoWuzQ9dnhMYNZfR9ECcthDduvP2Fb-W+nic7yJFqhPDWtV+8+ds3XsqT05KHgxP62VOkiAHtJT74ax1t7KfS8AzPZsNWeds9fizGoIlj1CdZTmYOTnYOTm4OzsocnNU5OGtzcNbvlbNDRShb0fFLdll3qWQPDlmZuVjZuVi5e2Q9gT0dUI7unLx79W1w8TLXpmPkeXc+NjFaxF7T6I7CyQDbf22gCP2JkKoMzzUR+URAnbX2FK7lJgI27IVQM52ZCCgdtq2hTArXnQgaVKFJ82ekwe39-ePz0U1Zv1CNzxSkMEpyjso2J0w0ONq+Mm4QHZ8EhnUxvuiKb8PsJ1YRuyzA6vELrYVhq1lXGH1p9ZvTXsVgqyL2JTjDoZqhBsHfRKEQHD-Wz+6oDAs6PI684xNum1vTbIHjl5GajkLbD-n9K7jBlZJtUk-e+n72iRyO0852dz7x+krY-6oNZMeu7S76VWoUOxxNxtJkwN-umCqQItNtTntVeshanVYk7DkWmmYV-H7TTMZaVhccx7n0X1zHmFY=

Thank you!!!

[MeldaProduction]

It's aliasing caused by the modulation itself. INterestingly the normal FilterBasic works better. But if you need to use the FilterFast (which is mainly for processing very fast modulations), go to the Globals tab and increase the quality. I needed Extreme 16x to make it completely disappear.

[vanerio]

It's aliasing caused by the modulation itself. INterestingly the normal FilterBasic works better. But if you need to use the FilterFast (which is mainly for processing very fast modulations), go to the Globals tab and increase the quality. I needed Extreme 16x to make it completely disappear.

x16 sounds crazy. If FilterFast does not make a better job than other filters in this example, what is the purpose of FilterFast? I used it because I was doing fast modulations but the quality is worse than the other filters, so it does not make sense anymore?

[vanerio]

I add to my previous comment, that due to the mentioned problem, it would be very useful to add Pitch Tracking to the 'Filter' module also when using Constant mode