DPAO BLM4060 Manual do utilizador - Página 5

Procurar online ou descarregar pdf Manual do utilizador para Microfone DPAO BLM4060. DPAO BLM4060 9 páginas. Boundary layer microphone

How it works

The BLM4060 Boundary Layer Microphone is a transducer that should always be placed on a surface that

reflects sound. By doing this, you will benefit from the special characteristics of the sound field found here:

a 6 dB gain of direct sound and only 3 dB gain of diffuse sound. Hence, the sound captured has both a

greater clarity and intelligibility compared to sound captured above the surface.

How to use it

The microphone can be placed on any surface that reflects sound, like tables, speaker podiums, etc. Even if

a table is covered with cloth, the BLM4060 will work due to the shape and size of the disc.

The microphone has been designed to ensure high-frequency clarity and speech intelligibility under most

conditions.

The low-frequency response is, to some extent, dependant on the area of the boundary. However, for

speech pick up, even small areas like podiums are adequate.

The microphone can be placed in essentially any position on the surface, even close to the edge. However,

try to avoid placement that may receive reflections from vertical faces as this may cause coloration of the

sound (comb-filtering).

For tables longer than 6 m (20 ft), it is recommended to use more than one BLM4060.