Implement GainPeak

[iver56]

Something that turns the gain up and then down, almost like a sound source that drives by

This is a specialization of #53 (comment)

[atamazian]

Which parameters should be available to be set? Max gain and its position?

[iver56]

I guess it should randomize at least these things:

• the difference between min gain and max gain
• "the wideness" of the gain curve (think like: how fast does the sound source drive by)
• the offset of the gain curve. E.g. the peak of the gain curve can also be before the start or after the end

Bonus:

• The shape of the gain curve. Could be triangle, could be gaussian, could be "cosine interpolation"...
• Whether the gain curve is defined on a logarithmic scale (decibel, like those faders you'll see on physical mixers) or not

[atamazian]

Can you assign this issue to me? I'll try to do it.

[iver56]

Great! Done

[atamazian]

Should we let user specify min_gain, or should we set it to some constant value?

[iver56]

I guess the most important thing is the difference between the minimum gain and the maximum gain.

In the future I want to establish a common post-gain pattern that can compensate: #171

Thanks for the PR by the way! I will have a look at soon-ish :)

[atamazian]

Thanks! As for now, I've have min_gain specified by the user.