May 2014
Intermediate to advanced
116 pages
5h 50m
English
Cancel out vocals, isolate instruments, and create fascinating audio effects with this inexpensive DIY device.
By Jeffrey M. Goller and Nathan Goller-Deitsch

AS A MUSICIAN I FREQUENTLY NEED TO LEARN NEW SONGS, and it can be difficult to hear individual instruments in recordings I want to study. I have often wished for an easy way to eliminate or reduce the vocals and isolate the instruments. Expensive, inconvenient solutions exist, but I wanted a cheap method that I could use anywhere, on any device with a ⅛" stereo headphone jack.
Then, one night, I was fiddling with a pair of headphones with a defective plug. When ...