Windows + macOS VST3 effect
Channel / bus de-whistle
Dewhistle
Dynamic de-whistle for inserts — same Modandis activation stack as SynthMachine, separate product license.
Before you download
Dewhistle is free ($0). One checkout still equals 1 license = 1 computer activation. Dewhistle uses DW- keys and DewhistleActivation XML. It does not unlock SynthMachine (and the reverse).
After checkout, open Find Purchase with your Gumroad email and order number or Order ID to get your license key and download.
There is no Dewhistle payment, so there is no Dewhistle refund. SynthMachine refunds are unchanged — see Refund Policy.
Free Gumroad checkout for Dewhistle only (not SynthMachine). $0 — we still need the checkout email to issue your DW- license.
Free
Dewhistle interface
Live spectrum with Range / Ramp, Amount, and Q — insert on a channel or bus.
VST3 effect
Insert on a channel or bus. Publish builds stay silent until a valid Dewhistle activation file is imported.
Same site, separate product
Activate on the shared Activate page — paste Dewhistle request JSON so the site signs the correct root tag.
No demo SKU
Full product only. There is no Dewhistle trial or DW-DEMO storefront.