Wishlist: Gain effect

[fwcd]

Feature Description

Sometimes it's useful to have a separate gain in an effect chain, hence it would be nice to have it as a configurable effect too

[ronso0]

I sometimes need to adjust gain when I use an extreme Echo for a longer period.
So, a Gain effect would be cool!

OT: That would mean I'd have to sacrifice another effect.. would it it possible to add a (Auto-)Gain parameter into Echo?

[fwcd]

Tbh I think it would be cool to have it as a separate effect to be able to map it separately. In my experience simple "one-knob" effects are the most useful ones in a live setting

[ronso0]

Sure, these are two separate features: Gain effect, Gain parameter for other effects

[pri-yan-shu]

Hiya, I created this effect following the WhiteNoise effect, can anyone have a look at it before I issue a pull request?

[acolombier]

I had a quick look and this seems to look good! Feel free to open a PR to get further feedback.