[PD] Cheapest effects/objects/abstractions?

[i go bananas]

ring mod is cheap.  it's not much more than an [osc~] and a [*~ ]

table-lookup waveshapers are cheap.  they're not much more than [tabread~]

a flanger can be cheap.  just a [delread~] [vd~] pair and something to
modulate it - but you can use control objects for the modulation, to
further cut CPU cost.
a chorus can be as simple as a couple of flangers.

delay is even cheaper, just a [delread~] and [delwrite~], and some [*~ ] to
set the feedback amount.

[vcf~]  is pretty cheap, [lop~] , [bp~] and [hip~] even cheaper still.

all sorts of distortions can be done very cheaply.  [*~ ] going into
[clip~] is a simple and nasty digital distortion, or you can do [*~] into
[tanh~] for a smoother one.  [wrap~] can also be used for distortion
effects.

a simple gate can be made with [env~] to detect the signal, and then some
basic computations in the control domain to check whether it is rising or
falling, for attack and release.  Then you just need to use [line~] and
[*~] to gate your signal.

a panner is not much more than a pair pf [*~] objects.



that's just some ideas...there are heaps more.  Other things to take note
of, if you're using lots and lots of processes:

*use control signals instead of audio signals wherever possible.

*use [switch~] inside patches or subpatches that are not being used.  This
frees the cpu for others.

*whenever possible, re-use a single process, rather than copying it over
and over.  For example, if you want to make 10 effects that all use
[noise~], then instead of creating 10 [noise~] objects, it will be cheaper
to create a [send~] after that [noise~] in a parent patch, and then use
[receive~] objects in all the effect patches.
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