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Innovation in Acoustic Imaging

Acoustic Imaging: Watching and Listening

Acoustic arrays meet two needs:

Watching and listening work together: watch for hot spots in the acoustic image and then focus to listen to the sounds from those hot spots.

Sound is everywhere. Let us help you see it.

ACAM 120 Acoustic Array

Download the datasheet: ACAM 120, A4 size

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Acoustic Camera

The ACAM 120 Acoustic Array has 40 digital microphones on a 40 cm x 40 cm plate. The microphones are sampled simultaneously, providing accurate phase information for digital signal processing algorithms.

An acoustic membrane protects each microphone from dust and moisture.

Note: Effective November 1, 2017, the second generation ACAM 120 Acoustic Array replaced the original ACAM 100. Contact SIG for details.

One cable

The ACAM 120 requires just one USB cable for microphones, optical camera, digital I/O, and power.

The ACAM 120 is ideal for mobile applications. Setup takes just a few minutes.

Optical Camera

The optical camera in the center of the array returns 5M-pixel images.

Digital Inputs and Outputs

The ACAM 120 Acoustic Array has two isolated digital inputs and two isolated digital outputs. These can be used for synchronization with data acquisition systems, and one of the inputs can be used for a tachometer.

acam image

Mounting Hardware

The ACAM 120 mounting hardware conforms to the 100 x 100 mm VESA standard. Wall mount, tripod, and desk mount adapters are available.


Patent 9635456, Digital Signal Processing with Acoustic Arrays, applies to acoustic arrays from SIG.

acam image


Software provides the interface between a Windows PC and an ACAM 120 Acoustic Array.

The ACAM 120 Acoustic Array is available now:

Signal Interface Group is your source for Innovation in Acoustic Imaging.

Sound is everywhere. Let us help you see it.


Contact SIG