Filtering and sound shaping is essential, when it comes to balance out recordings, fitting signals into the mix or doing creative sound design. But what might be great for the loud part of the signal, is not necessarily good for the quiet part and reverse. Dynamic EQs are around for quite a while and are doing a great job on dynamic selective filtering. On the other hand, dynamic EQs can be a little bit difficult to understand, especially when it comes to below and above the dynamic threshold of the processing and it is also hard to deal with complex filter curves. Therefore, we invented a complete new but very simple approach to dynamic selective processing. This not only allows to add complex filtering curves very fast, but also analog style saturation and stereo widening. We call it: Dynamic Split Processing