Measurement microphone 4957

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Overview
The Type 4957 is a pre-polarized array microphone designed for use in multi-microphone and array measurement systems. It provides consistent phase behaviour across elements and a construction aimed at reliable performance in repeated or long-term array deployments.

Key features

• Pre-polarized design for straightforward integration with measurement preamplifiers and acquisition systems
• Engineered for array use to maintain consistent phase relationships between elements
• Stable phase-matching across multiple microphones, suitable for beamforming and coherent processing
• Robust construction for repeated use in laboratory and field measurement campaigns

Typical applications

• Acoustic array measurements and beamforming
• Noise source localization and acoustic mapping
• Multi-channel acoustic testing where phase coherence is critical

Compatibility / Integration
Designed for integration into multi-microphone systems and arrays where matched phase response and repeatable performance across elements are required. Compatible with standard pre-polarized microphone workflows and measurement chains.

Technical specifications

• Model designation: Type 4957
• Product type: Array microphone (specialized microphone)
• Polarization: Pre-polarized
• Intended use: Multi-microphone / array systems requiring phase matching
• Main benefits: Stable phase-matching across array elements, durable construction for measurement applications