Parallel Compression
Blending a compressed copy with the dry signal to keep punch while adding density
Related
Parallel compression copies a signal, compresses the copy hard, then blends it under the dry original. The dry path keeps the attack and peaks, while the compressed copy lifts quiet detail and tails, so the sound grows thicker without losing punch.
There are two common methods: feed a compressed return with a send, or duplicate the track and compress the duplicate. It is most associated with drums, but vocals and bass benefit too. The blend matters more than the compressor setting; the compressed path is often crushed and then hidden low.
The usual mistake is to hear parallel compression as simply louder. It changes the ratio between strong and weak moments: peaks barely move while low-level detail rises.
Sources
- 平行压缩的用法与混合比例，参 Bobby Owsinski, The Mixing Engineer's Handbook 与 Huber & Runstein, Modern Recording Techniques；本文为原创表述
Used for fact-checking only; all prose is original.