Why CZM Microphones Are Better

The CZM microphone technology’s patented design provides a new and more effective option to the traditional directional, parabolic, pressure zone, and boundary microphones, which often lack the range and sensitivity required for many indoor and outdoor monitoring and recording requirements.

The CZM is engineered with dramatically different acoustical pickup characteristics that other microphones just cannot match.  It delivers clearer sound, as well as a rich and consistent tonal quality for any audio monitoring and recording.

Limitations of Conventional Microphones

In the context of monitoring and recording of the human voice, musical instruments, animal sounds, or any other audio signals—sound and recording engineers always work to achieve a balance in clarity, articulation and naturalness of the recording.  To achieve this balance careful attention must be given to the:

  1. Choice of microphone (directional, cardioid, or boundary)
  2. Tonal quality of the microphone
  3. Placement of the microphone(s) for optimum signal reception

Various strategies have been developed to compensate for the inherent deficiencies of directional, cardioid and boundary microphones, which always increase costs, while delivering varying results. Careful placement of the microphone (or using multiple microphones) is one of the strategies used to compensate for these deficiencies.

CZM’s Superiority over Directional and Boundary Microphones

Compression Zone Microphone (CZM) technology addresses the deficiencies of directional, cardioid and boundary microphones and therefore meets the audio engineers’ and A/V technicians’ needs in a broad array of monitoring and recording applications.  The CZM Microphone is simple in design, easy to install and use, and achieves truly remarkable results when benchmarked against other available microphones.

  • Higher acoustic gain without a corresponding increase in self-noise
  • Greater distance and broader pick-up range – up to 250 m (273 yds) (depending on environment, atmospheric conditions and surrounding noise levels)
  • Increased pick-up pattern; up to 360 degrees radially
  • Improved pick-up of multiple sound sources within a greater range and radius
  • Greater forward sound pressure gain—comparable to a 24-inch parabolic microphone
    • The range of one CZM microphone is comparable to six 24-inch parabolic microphones; yet it comes in a package that is less than half the size of one 24-inch parabolic microphone
    • CZM microphone combined with a parabolic dish becomes a hyper-parabolic microphone
  • Increased sensitivity in critical treble areas for improved speech intelligibility from long distances for pick up of low level voice inflection and sibilance

How the CZM Microphone Does It

Briefly, the CZM microphone is designed to simultaneously receive both direct and reflected sound waves at the surface of its spherical boundary.  These sound waves are then compressed as they move through the flat plane of the microphone enclosure toward the microphone diaphragm.  The resulting sound is pure, yet natural—without the spikes and other anomalies inherent in directional and omnidirectional microphones.

Also of note is that because there is limited or zero negative acoustic wave interference at the CZM’s microphone diaphragm, it can be mounted vertically or horizontally anywhere in a room (ceilings, walls, tabletops, etc.), and still deliver unbeatable sound wave reception for all indoor and outdoor applications.

Learn about the engineering behind the Compression Zone Microphone (CZM). 


Important: It is the responsibility of the installation company and end user to install any audio listening devices and surveillance equipment in compliance with provincial/state and federal privacy laws. If you are unfamiliar with these laws, consult a qualified attorney.