Professional electroacoustic measurements for loudspeaker and microphone characterization, audio system frequency response, total harmonic distortion analysis, and acoustic transfer function measurement. Electroacoustic measurement underpins the design, optimization, and commissioning of professional audio systems in concert venues, theatres, broadcast studios, conference facilities, and any environment where the acoustic performance of audio equipment and the room interaction must be understood and optimized.
Electroacoustic measurement requires instruments capable of broad-band frequency analysis, transfer function measurement between two channels, coherence analysis, and phase measurement. These capabilities, which are standard in the Bedrock Elite i10 via its dual-channel FFT analyzer, allow the characterization of speaker frequency response, the measurement of room transfer functions, and the identification of audio system anomalies that affect sound quality and intelligibility.
When commissioning a distributed loudspeaker system in a conference facility, theatre, or large room, a structured measurement workflow with the i10 is most efficient. Start by measuring the room reverberation time at multiple positions to establish the acoustic context for all subsequent measurements. Then measure the frequency response of each speaker zone using pink noise or swept sine excitation with the FFT analyzer, identifying any zones with significant peaks or dips that require equalization. After equalization, re-measure frequency response to confirm the correction. Finally, measure speech intelligibility (STI or STIPA) at all required listener positions. The i10's ability to perform all of these measurement types from a single instrument — without swapping to a different device — saves significant time on complex commissioning projects. Data from all measurement stages can be stored and exported for inclusion in the commissioning documentation package.
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