14 Bedrock SMxx operating manual © Bedrock Audio BV, 2019
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5.6. Some more tips and tricks
Boot straight into your last-used module. The device boots up into the module from
which the device was last shut down. This is very convenient if you want to (temporarily)
turn the device off between measurements to conserve the batteries; you don’t have to go
through the menu each time. You can return main menu at any time by tapping the “home”
button, found at the top right of the screen in each module.
Add text annotations to your measurements. Measurements made by the SMxx are
uniquely identified by a serial number. However, as time passes by you may have a hard
time remembering which measurement #000422 was exactly. A short text such as “1st floor,
office 103” may jog the memory. It is now possible to add a short text note to every meas-
urement, by means of an on-screen keyboard. You will have to set “Text annotations ON”
in the settings module. Whenever you save a measurement, a keyboard will now pop up.
Record the audio of all of your measurements. Also from the settings menu, you can set
the device to record audio (in .wav format) for all of your measurements. These .wav files
are calibrated so that full scale corresponds to 150 dB SPL. You can play them back with
any audio player, although they may have to be amplified to be heard at a satisfactory level
(Windows is not set up to expect 32 bit audio files).
Back up your data via USB. All of your measurement data (and recorded audio) can be
copied to a PC using the supplied USB cable. The SMxx simply presents itself as a mass
storage device; see chapter 11 of this manual for the details. A word of warning: if your
computer is set up to display hidden files, be careful not to change, move or delete any files
from the SYSTEM folder.
Use a USB power bank for lengthy measuring sessions. Depending on the type and in-
tensity of use, most users get between 6 and 8 hours of use out of a single battery charge.
The battery is designed to last through the day during a typical measuring campaign. The
battery is drained most quickly during the actual measurements, when all pre-amplifiers
and the phantom power are fired up. When measuring continuously, expect the battery to
last 3 to 3.5 hours. If this is not enough, we recommend using a (generic) USB power bank,
connected via the USB port of the device. These devices are effective and inexpensive, and
will last you multiple days. To save power, set the display to a low brightness setting and
turn it off in between measurements.
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