how do you simulate atmospheric dampening - efficiently?

[laurentlavigne]

I used to have a low pass filter on audio source and increase its effect with distance, like so

but that means one LPF per source, in cases with 10s of sources the cpu impact was noticeable on switch.
so I’m wondering if there is a thing that can be attached to the mixer itself, and if this even makes a difference in term of CPU usage

[jamespaterson]

Hi. I believe you can route your sounds to a mixer (or sub mixer channel) and then apply effects on the channel, rather than on the effects themselves. This should use less CPU as the effects process on the mixed channel, rather than each noise individually.

[laurentlavigne]

@jamespaterson

Hi. I believe you can route your sounds to a mixer (or sub mixer channel) and then apply effects on the channel, rather than on the effects themselves. This should use less CPU as the effects process on the mixed channel, rather than each noise individually.

mixer effects cannot be controlled by distance

[jamespaterson]

Ah! Good point. Yes i agree if you need control by distance filtering on a mixer channel won’t work for you. Sorry!

[laurentlavigne]

I think that’s the function of group/audiolistener reverb to take distance into account