QAcousticCamera 1.1.0

Scanning holographic acoustic camera

QAcousticCamera

Scanning holographic acoustic camera based on lock-in detection of the signal from a microphone that is scanned across the field of view by an Arduino-driven polargraph. This illustration of the software interface shows the phase of a 5 kHz sound wave from a stereo speaker, including reflections from nearby surfaces.

Image Credit: Aashay Pai, NYU

Installation

pip install QAcousticCamera

All dependencies, including QInstrument and QPolargraph, are installed automatically. A Qt binding such as PyQt6 must also be present.

Usage

# Connect to hardware instruments
python QAcousticCamera.py

# Development/testing without hardware
python QAcousticCamera.py --fake

# Load a previously saved data file on startup
python QAcousticCamera.py --read docs/demo.csv

Or, if installed via pip:

qacousticcamera [--fake] [--read FILE]

Dependencies

• QInstrument: Qt-based scientific instrument framework
• QPolargraph: polargraph scanner
• pyqtgraph: real-time scientific graphics
• qtpy: Qt binding abstraction (PyQt5, PyQt6, or PySide6)
• numpy, pandas, scipy

License

This project is licensed under the GNU General Public License v3.

References

1. Flexible wide-field high-resolution scanning camera for continuous-wave acoustic holography, H. W. Gao, K. I. Mishra, A. Winters, S. Wolin and D. G. Grier, Review of Scientific Instruments 89, 114901 (2018).

Acknowledgements

Work on this project at New York University is supported by the National Science Foundation of the United States under award number DMR-2438983.