Parallel compression, also known as New York compression as it was a staple technique used in studios in New York before the rest of the world caught on. It is a compression technique used in sound recording and mixing. Parallel compression, is achieved by mixing an unprocessed 'dry', or lightly compressed signal with a heavily compressed version of the same signal. The most common application of this is drums but the technique can be used in just about any situation. The result is a thick sound with punch, but also with full dynamic range thanks to the dry signal.
Below I take you through the steps to create parallel compression as well as some things I like to do with the parallel channel.