Ignore the wannabe scientific cable trolls spewing buzzwords with no supporting details to back up anything they read and parrot here from other sites.
Remember this, most have never tried an actual audio analyzer to measure frequency response of a cable nor try to understand the affected frequencies passing through a cable.
Passing a consistent test signal, like a pink noise or a sweep tone, sent through the cable to analyze its frequency response across the audible range is one method.
However there is recycled Lamp cord and coat hangers, use whatever you got. If you do test and compare, and still can't hear a difference, good for you, save your money. Happy listening.