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TYPE 4957

ARRAY MICROPHONE (20 KHZ)

Prepolarized Array Microphone for use in systems requiring a large number of microphones, for example, beamforming arrays, STSF measurements, and non-stationary STSF measurements.

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TYPE 4957

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Array MicrophoneType 4957 is used in combination with other array microphones, and is designed with specified and stable phase-matching over wide ranges of temperature and humidity.

A rugged protection grid provides an integrated heat shield. The microphone is front-vented for pressure equalization. 

  • Measurements using:
    • Spatial Transformation of Sound Fields (STSF) Type 7688
    • Non-stationary STSF Type 7712
    • Beamforming Type 7768
  • Hand-held array measurements
  • Simultaneous recording of time signals in medium to large microphone arrays, for example, simulated pass-by measurements
  • Cost-effective in-car measurements
TYPE 4957
Application Array microphones

El preamplificador del micrófono en matriz es del tipo CCLD, estándar de la industria, lo que permite utilizar solo un cable coaxial económico para la señal, la fuente de alimentación y TEDS.

El micrófono en matriz se suministra en una caja dura con hasta seis micrófonos entregados en una caja de micrófono estándar. Se entregan siete o más micrófonos en una maleta para micrófonos múltiples.