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Frequently Asked Questions

01What is infrasound and why does it matter for data centers?

Infrasound refers to sound waves below 20 Hz, the lower threshold of typical human
hearing. While you may not consciously hear these frequencies, they represent real, measurable atmospheric pressure
fluctuations. Data centers operate large cooling systems, fans, and generators that can produce both audible noise and
infrasonic pressure waves. The RS&BOOM infrasound sensor detects frequencies from roughly 0.05 Hz to 40 Hz, capturing
the full range of low frequency acoustic output from industrial facilities.

02Can the RS&BOOM actually detect data center noise?

Yes. The RS&BOOM detects both ground borne vibration (via its seismograph) and
atmospheric infrasound (via its differential pressure transducer). These are the two primary pathways through which
mechanical equipment in data centers can affect the surrounding environment. While peer reviewed studies specific to data
center monitoring with Raspberry Shake hardware have not yet been published, the sensor capabilities are well suited to
capturing the types of signals generated by large industrial cooling and ventilation systems.

03I saw a YouTube video about data centers and infrasound. Is that what led
me here?

You’re likely referring to “Datacenters Behaving Like Acoustic Weapons” by Benn
Jordan, which introduced many people to the concept of monitoring data center noise with instruments like ours. While
Raspberry Shake is not affiliated with this video or its creator, we recognize that it raised important awareness about
community concerns. The RS&BOOM provides you with the tools to collect your own objective, continuous data so you can
form your own evidence based understanding of your local acoustic environment.

04Can I use RS&BOOM data in legal or regulatory proceedings?

The RS&BOOM produces scientifically rigorous, timestamped, continuous data that can
document the acoustic environment around your home. However, we cannot provide guidance on making data admissible
in court proceedings, as this is outside our area of expertise. If you intend to use your data in legal,
regulatory, or municipal proceedings, we recommend consulting with an attorney or acoustic consultant who can advise on
evidentiary standards in your jurisdiction.

05Has Raspberry Shake data been used in peer reviewed research?

Yes. Raspberry Shake instruments have been used in numerous peer reviewed scientific
publications across seismology, volcanology, and acoustic monitoring. You can browse the full list at raspberryshake.org/peer-reviews. While studies specifically focused on
data center monitoring with our instruments have not yet been published, the underlying sensor technology is well
established in the scientific community.

06I only want to monitor infrasound. Can I buy just the infrasound sensor
without the seismograph?

The RS&BOOM is our recommended and only current product that includes infrasound
monitoring. The standalone RBOOM (infrasound only) was discontinued several years ago. The RS&BOOM’s integrated
approach is actually an advantage: synchronized seismic and infrasound data lets you differentiate between ground borne
vibration and atmospheric pressure waves, giving you a more complete picture of the data center’s acoustic
footprint.

07How long should I monitor before and after a data center becomes
operational?

We recommend at least 4 to 8 weeks of baseline data before operations
begin, though more is always better. After the facility becomes operational, continuous monitoring will allow you to
identify patterns, compare against your baseline, and document changes over time. The RS&BOOM records 24/7
automatically once installed.

08Can I monitor from a mile away?

Infrasound can travel significant distances with minimal attenuation, which is one of
the reasons it’s relevant to this application. Residents living within several miles of a data center may still detect
infrasonic signals from the facility. The RS&BOOM’s sensitivity makes it capable of detecting low frequency signals at
residential distances. Your results will depend on distance, terrain, local noise floor, and the size and configuration
of the data center’s mechanical systems.

09I have a generator or HVAC unit near my home. Will that interfere?

Intermittent local noise sources like standby generators that run on a schedule are
generally not a problem. They appear as identifiable events in your data and can be accounted for during analysis. For
best results, try to place your RS&BOOM as far as practical from continuous local noise sources (compressors, pool
pumps) and as close as practical to the line of sight toward the facility you’re monitoring.

10Should I install the sensor below ground?

For data center monitoring, no. Given the RS&BOOM’s low corner
frequency (0.7 Hz), there is no meaningful signal advantage from burying the unit. A standard surface installation
provides excellent performance for this application.