Is it true that the higher the frequency, the more difficult it is to control direction/dispersion?

The statement is actually true, as higher frequencies typically have shorter wavelengths, which can indeed make directionality and dispersion control more challenging. At higher frequencies, sound waves are less able to bend around obstacles and tend to travel in more straight lines, causing them to be less diffuse and more directional. This can result in a more focused sound that may not cover a space as evenly as lower frequencies, which have longer wavelengths and can disperse more effectively.

In settings like live sound production, managing higher frequencies often requires specific techniques and equipment, such as directional microphones or speakers designed to control dispersion patterns. Thus, understanding the physics of sound waves and their behavior at different frequencies is crucial for effective sound design and production.

The idea that it is false or depends on setup overlooks these acoustic principles that make controlling higher frequencies more complex. Consequently, many professionals in sound production must carefully consider frequency when planning their setups to ensure optimal sound distribution.