BIOPAC® Systems, Inc. Logo

Calculating file sizes

File size is limited by the restraints of the operating system (generally, 2 GB) and the available memory space on your hard drive or disk (depending to which you save the file).

Windows OS

Mac OS

Use the following equation to calculate the memory required for your acquisition:

 Memory required (bytes) = [(8C + 2A) x S x T] + 1 MB*

C = Number of calculation channels
A = Number of analog channels
S = Sample rate (samples/second)
T = Recording time (acquisition length)
* 1 MB = memory required to store file information
Journals, events, and other information are variable and will also require more disk space. Once analog channels are filtered or otherwise transformed, the required amount of storage will increase to 8 bytes per sample, identical to calculation channels. It is not possible to perform any transformations for acquisitions where converting analog channels to floating point will exceed 2 GB.

Refer to the software guide available under the program Help menu for setup and analysis guidelines when working with large files.

Associated Applications

Spotlight On
Stellar Telemetry with BIOPAC AcqKnowledge

AcqKnowledge for Stellar Telemetry

Easily Schedule, Record, and Analyze Stellar Telemetry Data with AcqKnowledge Intuitive Animal Scheduler: Easy-to-configure calendar display—Select a subset or complete range of animals for long term recordings of conscious, unrestrained animals Customizable Display: View Data in Multiple Display modes simultaneously; Signal Conditioning Tools include filtering and artifact removal AcqKnowledge: Multi-Animal, Multi-Channel simultaneous automated data analysis. […]

View All
Latest News

News Citations—Respiration and Cardiovascular Activity

BIOPAC provides software and hardware that allow for research teams to record and analyze respiration activity in physiological experimentation. Here are a few notable studies in monitoring respiration and cardiovascular activity. The coupling between peripheral microcirculation and slow breathing: The purpose of this study was to investigate the coupling of breathing movements and microcirculatory blood […]

BIOPAC on 60 Minutes | Brain Hacking with Anderson Cooper

CBS News | 60 Minutes | Brain Hacking APRIL 9, 2017| Why can’t we stop looking at our smartphones? And are the designers of the apps and content on them using brain science to keep us hooked? Anderson Cooper reports.   BIOPAC users Larry D. Rosen, Ph.D. and Nancy A. Cheever, Ph.D. from California State […]

Read All
Request a Demonstration
Request a Demonstration