A high capacity data recording device based on a digital audio processor and a video cassette recorder
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Updated: Nov 6, 2026

Micro-drive Array for Chronic in vivo Recording: Drive Fabrication
Published on: April 19, 2009
Abstract:
A modified digital audio processor, a video cassette recorder, and some simple added circuitry are assembled into a recording device of high capacity. The unit converts two analog channels into digital form at 44-kHz sampling rate and stores the information in digital form in a common video cassette. Bandwidth of each channel is from direct current to approximately 20 kHz and the dynamic range is close to 90 dB. The total storage capacity in a 3-h video cassette is 2 Gbytes. The information can be retrieved in analog or digital form.
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