From a technical perspective, sidechain compression typically means the use of an external input to control the compressor, and this can be a sound that’s part of the mix or a specially created key.

Thigh-length, calf-length, and foot external sequential pneumatic compression devices effectively increased quantitative blood flow volume and velocity in the deep and superficial saphenous venous ...

The only downside is that there’s only one external sidechain path shared by all ... be tuned to respond to frequencies outside of its compression band. This would all get confusing but for ...

Sequential compression devices are used to reduce venous stasis and deep venous thrombosis after joint replacement. Thigh-length, calf-length, and foot compression devices were compared in using ...