Smooth Pitch Bend in Logic?

The pitch of what, exactly?

Automation controls either the mixer, or plugins.

As the mixer does not control pitch, then you need to find a plugin solution. Generally speaking, plugin pitch shifters are naff. What I'd recommend is to put your audio in a sampler (eg the EXS24) and just use MIDI pitchbend to bend your audio on the fly.

You should use the exs as beejay mentioned. And you can create pitch bend data by:
: Drawing the data in a midi-region controlling the exs. Select hyper-draw/pitch bend and use the pencil tool.
: Using any other controller of your keyboard and transform the signal to pitch bend data (transformer object/envinronment)
: programming any other controller on your keyboard to send pitch bend data to the exs.
: creating an environment controller that sends pitch bend data to the exs

Eddie

And you can make logic learn to interpret any keyboard controller of your keyboard as pitch bend (controller assignment).