Typical studio microphones are designed to operate in close proximity to a sound source. When the sound source is not in close proximity the studio microphone receives both the direct sound plus the delayed reflected sound out of phase. Response anomalies are caused by the out of sync direct and reflected sound received by the microphone. Gold Line boundary microphones solve this problem by receiving signals from both direct and reflected paths at the same time, and in phase.
The CBM1 places a small transducer at the boundary zone where direct and reflected waves act as a single reinforced signal. In this configuration, both direct and reflected sound occur very close together in time which means that the response over the microphone diaphragm is immune to changes in either amplitude or phase. This guarantees that no pressure build-up due to strong reflections can occur on axis. The high degree of directionality inherent to the typical studio microphone can be replaced by the CBM1 boundary microphone which picks up sound in a fashion that resembles the human ear.
Boundary microphones offer several distinct advantages over standard studio designs. They provide flat frequency microphone response without equalization and they maintain a more consistent sound quality as the sound source moves along the surface of its hemispherical pickup pattern. This technology also yields a more predictable sound field without interfering reflections, maintaining clarity of pickup even at a distance. Since clarity is maintained, even at a distance, the sound is more natural than would be the case if the recording had been made with conventional dynamic microphones. When preserving the ambiance of either a studio or concert hall, boundary microphones are ideal.
- Flat frequency response without equalization
- Better ambient pickup
- Greater clarity at a distance
- Additional Benefits For Boundary Microphones:
- Size, pickup pattern, unvarying response to changing sound sources are some of the benefits of CBM microphone technology.The CBM1 housing allows these microphones to be easily placed on table tops, under pianos, on the floor, or on lecterns.They can also b
- Freedom of Movement:
- By making use of boundary microphones, performers, instrumentalists or vocalists have greater freedom of movement.They are not confined to a limited microphone range, and only extreme changes in distance will markedly effect sound quality.
- Distortion Free at High SPLS:
- The Gold Line CBM1 boundary microphone is designed to be virtually immune to distortion at very high SPL levels (150dB SPL).Even the loudest and most dynamic instruments such as kick drums and pianos can be faithfully captured by the CBM1. A single CBM1 ca
- Applications:
- Theater and Video Production:
- The CBM1 microphone is an excellent choice for placement at the front of any theater or video production set.
- It is unobtrusive, even if placed in view of the audience and it will pick up all of the dialogue and action for soundtrack or entrance cueing.
- It Is also ideal for the smaller, more restricted spaces in theater or video sets.
- For example in automobiles, trucks or van interior, train and plane passenger compartments or tunnels.
- Sound Reinforcement on the Set:
- The CBM1 microphone is well suited to replace boom microphones on the set when the boom microphones are too obvious.
- Concealment behind columns, under shelves or tables, behind draperies or beneath overhangs represent just a few of the possibilities.
- Virtually any prop or part of the machinery will serve as visual shield for the CBM1.
- Reinforcing the Sound Stage:
- The CBM1 microphone is excellent for reinforcing the sound stage.
- The most common manner of placement is positioning several boundary microphones across the front of the performer's stage.
- This placement technique has been used very successfully in theaters, churches, and opera houses, and the results have been first rate.
- Church Applications:
- The CBM1 microphone is excellent on altars, from pulpits, and in the choir loft.
- It is also useful in instructional halls or conference rooms and perfect for any church application where the speaker requires freedom of movement.
