78 Bedrock SMxx operating manual © Bedrock Audio BV, 2019
RT60 module
Press button to arm the instrument. The measurement is then
automatically triggered once the energy level drops.
Press to accept the current individual measurement, and to
incorporate data from this measurement into the overall mean.
Select which reverberation metric to display (EDT, T20 or
T30). Press multiple times to cycle through the options.
The reverberation time measured in this frequency band is
consistent and reliable. Measurement error <= 0.1s
The reverberation time measured in this frequency band
may not be fully reliable; the signal-to-noise ratio is less than
required, or the energy decay curve is not be sufficiently linear.
The result will be indicative of the true reverberation time, but
the measurement accuracy is not guaranteed.
On theoretical grounds, or based on the measurement data,
the reverberation time measured in this frequency band is
considered unreliable.
LAEQ logging module
The A-weighted equivalent-continuous sound level (LAEQ)
is below the preset limit. This is true when considering the
current (short) period (<1min) as well as when considering the
running average (typically 15 minutes).
The running average is still below the limit, but the current level
exceeds the limit. The running average will soon exceed the
limit as well, unless the sound level is reduced in the upcoming
period.
The running LAEQ average exceeds the limit.
NOTE: this table does not describe all buttons and functions. Generally, buttons will be
marked with captions that explain their function.
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