Is the Voxengo sound delay the proper plugin for this kind of effect?
Twin Oak is spot on…this plug-in will exactly the job you want it for.
The Voxengo interface is a typically “scientific”, so let me save you a little time. There are two sets of delay controls. The top one sets the delay in milliseconds and the bottom sets delay in samples. Changing the delay time in one parameter does not update the values in the other…so adjusting both is cumulative. Pick the one that makes sense to you and use that to start.
You have a choice of delaying either channel. The Group buttons on the bottom choose which channel you will delay. Group A = Left and Group B = Right. You have more options…but for what you want to do, the default preset should work fine.
Go here for the VST version: