Acoustic Camera ACAM_64
ACAM_64 is an 8×8 microphone array, and real-time beamformer. It can build a 32×32 pixel image of sound sources in real-time, with adjustable frequency response within 20 Hz to 8 kHz.
Now includes the optical camera
See Theory of Operation
ACAM_64 is an 8×8 microphone array, and real-time beamformer. It can build a 32×32 pixel (128×128 pixel interpolated) image of sound sources in real-time, with adjustable frequency response within 20 Hz to 8 kHz.
Its massively parallel beamforming DSP allows the instrument to build each pixel concurrently with no missed sample.
The instrument can be controlled, and the images can be retrieved using an open protocol based on virtual Com port. That open protocol can be used on any platform that has a generic USB CDC driver. That includes Windows, Linux and Mac-OS.
The instrument can stream audio to the host platform through a USB-Audio interface. Through that interface the instrument is seen by the host as a USB microphone. That audio signal is the output of the beamformer and can be steered digitally to any azimuth and elevation in the field of view of the camera. Using the provided Windows application, the beamformer can even track any acoustic source in the field of view.
That USB-Audio interface works on any platform that has a generic USB-Audio driver. That includes Windows, Linux and Mac-OS.
A complete Windows application is provided to operate the camera, view and record images of the sound source.
Note: The Virtual Com Port interface, and the USB-Audio interface are not mutually exclusive. They can be used simultaneously.
The case contains :
- 1x Acoustic camera « ACAM_64 »
- 1x Optical USB camera
- 1x USB cable
- 1x Threaded mount adapter (to attach a tablet mount to the back of ACAM_64).
- 1x 25mm wrench for tablet mount adapter.
ACAM_64 Applications
- Detection, tracking and recording of acoustic sources.
- Sound proofing.
- Mechanical product design for acoustical performance.
Product Description
ACAM_64 is an 8×8 microphone array, and real-time beamformer. It can build a 32×32 pixel (128×128 pixel interpolated) image of sound sources in real-time, with adjustable frequency response within 20 Hz to 8 kHz.
Its massively parallel beamforming DSP allows the instrument to build each pixel concurrently with no missed sample.
The instrument can be controlled, and the images can be retrieved using an open protocol based on virtual Com port. That open protocol can be used on any platform that has a generic USB CDC driver. That includes Windows, Linux and Mac-OS.
The instrument can stream audio to the host platform through a USB-Audio interface. Through that interface the instrument is seen by the host as a USB microphone. That audio signal is the output of the beamformer and can be steered digitally to any azimuth and elevation in the field of view of the camera. Using the provided Windows application, the beamformer can even track any acoustic source in the field of view.
That USB-Audio interface works on any platform that has a generic USB-Audio driver. That includes Windows, Linux and Mac-OS.
A complete Windows application is provided to operate the camera, view and record images of the sound source.
Note: The Virtual Com Port interface, and the USB-Audio interface are not mutually exclusive. They can be used simultaneously.
The case contains :
- 1x Acoustic camera « ACAM_64 »
- 1x Optical USB camera
- 1x USB cable
- 1x Threaded mount adapter (to attach a tablet mount to the back of ACAM_64).
- 1x 25mm wrench for tablet mount adapter.
ACAM_64 Applications
- Detection, tracking and recording of acoustic sources.
- Sound proofing.
- Mechanical product design for acoustical performance.
Features
- 32×32 (128×128 interpolated) real-time image of the acoustic environment, displayed as a thermal map.
- Ready to run application provided for Windows.
- The beamformer can capture the audio signal at any specific direction within the field of view of the camera
- Using the provided application, the audio capture can track the source direction, following the source as it moves within the field of view of the camera.
- Frequency response can be adjusted by defining lower and upper frequency limits.
- Adjustable field of view: 60 deg or 90 deg.
- Adjustable image persistence from 10ms to 10s
- Massively parallel real-time all-digital design. Can build every pixel of the image from every sample captured by every microphone in the array.
- Open communication protocol allows application design by OEMs
Specifications
| Bandwidth | 20 Hz to 8 kHz, Good resolution from 1 kHz to 8 kHz. Below 1 kHz the array behaves as a single (very sensitive) microphone. |
|---|---|
| Aperture | 64 microphones arranged in a square array: 168x168mm (6.6”x6.6”) |
| Image Resolution | 32×32 Pixels (128×128 interpolated) |
| Field of View | Selectable: 90 deg or 60 deg |
| Image Persistence | Adjustable 10ms to 10s |
| Rate of Image Capture | Up to 1 image per ms |
| Microphone Sensors | Digital MEMS |
| Saturation Level (typical @ 1 kHz) | 120 dB SPL |
| Duty Rate of Signal Capture and processing | 100% – No Missed Samples |
| Connectivity | Image Capture and Configuration: USB (Virtual Com Port interface with open communication protocol), Beamformer’s Audio Signal: USB Audio Interface (Seen by the host as a USB microphone). |
| USB-Audio Interface | Sampling Rate: 16 kHz, Formats: PCM 16-bits mono, IEEE-754 (32-bit Float) mono |
| Temperature Range | -20 degC to 60 degC (-4 degF to 140 degF) |
| Compatibility | Windows, Linux and Mac-OS, Note: Ready-to Run applications are provided for the Windows environment. But the instrument will be recognized on any platform that has generic USB drivers for CDC (Virtual Com Ports) and Audio |
| Mounting | Standard Tripod Adaptor |
| Weight | 240 g (0.53 lbs) |
| Dimensions | 187 mm x 182 mm x 16 mm, (7.4” x 7.2” x 0.625”) |
| Protocol | Open and documented |
Examples
The following files can be downloaded and played back from Instrument Manager (download links below):
2,495.00 $
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Customer Reviews
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1-1 of 1 review
ACAM 64 is a more useful tool than I expected
I am an acoustic consultant. I knew when I bought the ACAM 64 that it was not a full-fledged acoustic kamera (it has only 64 microphones). But during a few tests, I understand the ACAM 64 is completely usable for simple tasks.
A big bonus is the low consumption of computing power on a PC.
To find the weak part of a building structure between two rooms that the ACAM 64 allowed.
I am satisfied with the price and the function.