Archives for: February 2016

Adding width to the main vocal or solo instrument with harmonizers

I don’t always go back to listen to records that I have released, but I do always tend to regret or wish certain things I have done differently in my mixes whenever I do listen back to them. One of the things I wish I had done more in my earlier records was experimenting with the use of harmonizers. I’m not talking about using a harmonizer to play a certain interval of the scale of a particular instrument, but more of the micro pitch (usually measured in percentages) effect that became a common studio trick in the last couple of decades.

What it does is take your vocal or main solo instrument, have one of the right/left channels play the same thing but a couple of percentages sharp, while the other side with a couple of percentages flat. The effect would be so subtle that it make things sound as if the solo instrument/vocal has gone from a small instrument in the middle to something that expanded out towards across the speakers. It’s an effect similar to chorus, but it’s meant to be very subtle widening effect, rather than a chorus effect in any shape or form.

Here’s an explanation by Tony Shepperd (skip to the 2:05 mark)

Here’s an explanation by Andrew Scheps (skip to the 43:45 mark)

While I did some of that in my latest record, I felt that I wasn’t doing it properly (the plugin lacked certain features) and that I was tuning the effect while it was playing in solo, rather than in context of the whole mix. This made the effect a bit too subtle, and something I would need to look into improving on my next mixes.

Taking my most recent acoustic guitar post for example, I felt that I could have done that to make the main instrument sound wider and more natural sounding. I went online and spent a couple of days experimenting with various free (or very low-cost) non-iLOK harmonizer pitch shifting plugins. I found many that could only tune the instrument flat or sharp one way, but not the stereo thing of both sharp and flat. Some would not allow a different percentage between the different channels, or the option to add delay. I even found one that were buggy, where a +5% shift was more than a couple of semitones sharp. I also looked at various free (or low-cost) delay plugins but didn’t find one that could detune in both directions for both left and right channels.

Finally, I found a harmonizer plugin named CMX by StillwellAudio that had the above options available and sounded good. It’s not completely free, but the evaluation copy is free and the company’s philosophy is that they do not cripple evaluation software once a certain trial period is over.

After browsing through the pages, I recalled that I had heard of the company before when my friend Jon from Audiogeekzine/ Reaper Blog/ Home Recording Show had done a video demoing their other plugins.

In Tony Shepperd’s video, he explained automating the effect and only kicking in the effect on certain sections of the song, to give them contrast and listener’s interest. It’s something I should look into experimenting too. Now I just need to write more music… the hard part…