gillywonk wrote:
If you just copy a track and time shift it, you'll get a simple echo. To make it a more convincing "doubling," also add a little chorus, roll off the high frequencies a bit, drop the volume to about half, and pan it away from the lead voice a bit.
Good suggestion... The problem with this though, and the delayed track, is that it's stagnant... the delay and the chorus are stationary to the lead vocal, where as a real double moves around it... it's a bit early, it's a bit late, it's right on, the pitch is sharp, the pitch is flat, the pitch is dead on, the tone is brighter, the tone is darker, the tone is right on... and this is ALL happening along with the main vocal.
But if you must do this electronically, may I suggest taking the chorus idea one step further...
Try this: Copy the track. Scoot it
forward a sub-frame or so. Put a sample delay plug-in on that track, set to 0 samples. Now put Logic's Pitch shifter on that track...Semi-Tones and Cents set to 0, Mix set to 100%.
Now, using automation, randomly adjust the sample delay parameter, so that on a word or two it's around 0 (ahead of the original vocal), and then moving the sample parameter later, it's behind the original vocal. This has to happen very fast, on a word by word basis ("word" as in language, not as in digital clocking...)
Same thing with the pitch plug-in. Automate the "Cents" parameter quickly, and in small amounts.
This, in my opinion, will yield more realistic results electronically, than just a delay and/or chorus, if you are going for a natural sounding double....using what's available within Logic.
The catch here, is that in the time it takes you to do this effectively, you could have sung doubles to every song on your album, and had a sandwich...