Constantdirectivity

Constantdirectivity is a term used in audio engineering to describe a type of loudspeaker horn that aims to maintain a consistent beamwidth across a wide range of frequencies. Traditional horns often exhibit a phenomenon where the dispersion pattern narrows significantly at higher frequencies. This can lead to uneven sound distribution in a listening environment, with higher frequencies becoming more directional and less present in off-axis positions.

Constant directivity horns are designed with specific geometric shapes to counteract this effect. By carefully shaping the flare and exit of the horn, engineers can achieve a more uniform dispersion pattern. This means that the sound, particularly the higher frequencies, spreads out more evenly as it travels away from the speaker. The goal is to ensure that listeners in different locations within the coverage area receive a similar tonal balance and sound pressure level.

The benefits of using constant directivity horns include improved intelligibility, a more consistent listening experience for all audience members, and better system integration. When multiple constant directivity horns are used together, they can create a more cohesive soundstage. While achieving perfect constant directivity across the entire audible spectrum is challenging, modern designs have made significant progress in approaching this ideal, making them a popular choice for professional sound reinforcement applications.