Larson Davis Spartan 821 - 3.9 Community Noise Settings

Spartan 821/721 Manual Community Noise Settings 33
3.9 Community Noise Settings
Among the parameters measured and displayed as part of data file sound level
measurement, G4 displays the community noise descriptors L
DN
and L
DEN
. The Community
Noise card defines the times and penalties to be used.
FIGURE 3-7 Custom Dosimeter
• Evening Penalty
The penalty applied to the level measured during the time from Evening Time
to Night Time.
• Night Penalty
The penalty applied to the level measured from Night Time to Day Time.
LEARN MORE For more information, see Community Noise Equivalent Level
(CNEL, LDEN) and Day-Night Average Sound Level (DNL, LDN)
• Day Time
The start of the day in hours:minutes using 24-
hour notation. This also marks the end of
penalties. Default 07:00.
• Evening Time
The time at which the evening penalty will begin.
Default 19:00.
• Night Time
The Night Penalty will be applied after this time.
Default 22:00.