Larson Davis 824 - Any Data Read Commands

9/29/09 A-25
*If f=0 then all 33 filter levels will
be output in a comma delimited
string.
**If n=0 then all 6 percentages will
be output in a comma
“ANY DATA” READ COMMANDS
The 824 measures SPL data with
three frequency weightings and with
three time weighting detectors
simultaneously, as well as peak and
integrated levels with three
frequency weightings. To access this
additional data use these Read
Commands using the second
operand indicated:
R241,
n+1024
AUD, FFT Show noise floor influence indicator
for harmonic ‘n’, n=1 to 20 (valleys
have less than 10 dB from har-
monic)
“ “ if no influence
“*” if influence detected
R242 ISM, LOG,
SSA, AUD,
TAL
Live Leq detector sample
(Weight setting applies)
nnn.n dB
R243 ISM, LOG,
SSA, AUD,
TAL
Live Lmax detector sample
(Weight and Detector settings apply)
nnn.n dB
{SSA, ISM, LOG and ENV instruments only}
R 4,x SSA, ISM, LOG Current SPL (Any Wght/
Dect)
nnn.n dB
R 9,w SSA, ISM, LOG OVERALL TWA (Any Wght) nnn.n dB
R 11,w SSA, ISM, LOG CURRENT TWA (Any Wght) nnn.n dB
R 13,w SSA, ISM, LOG OVERALL SEL (Any Wght) nnn.n dB