B&K 2250 Light, User Manual, Page: 155 / 208

APPENDIX A
Setup Parameters
145
A.10 Signal Recording
Table A.11 Signal Recording parameters
a
Parameter Values Comment
Recording Control Off
Automatic
Manual Event
Exclude Event
b
External Event
All Events
b
Determines how recording of the measured signal is
controlled
Set to Automatic to start the recording when the measurement
is started and record throughout the measurement, only
limited by the
Maximum Duration
Set to Manual Event to start recording manually while
measuring when the Manual Event pushbutton is pressed,
and record until pressing the pushbutton again, however, take
Maximum and Minimum Duration into account
Set to Exclude Event to start recording manually while
measuring when the Back-erase pushbutton is pressed, and
record until pressing the pushbutton again, however, take
Maximum and Minimum Duration into account
Set to External Event to start recording using external
equipment connected to the Trigger Input Socket
Set to All Events to record while any of the events above are
active, however, take Maximum and Minimum Duration into
account
If you do not want to record the input signal, then set
Recording Control to Off , to economise on power
Recording Quality Low
Fair
Medium
High
This setup determines the quality of the recording by adjusting
the sampling rate.
The amount of space required for the recording will depend on
the selected quality and resolution:
Quality Sampling Upper
Memory Memory
freq. freq. 16-bit 24-bit
Low 8 kHz 3 kHz 16 KB/s 24 KB/s
Fair 16 kHz 6 kHz 32 KB/s 48 KB/s
Medium 24 kHz 10 kHz 48 KB/s 72 KB/s
High 48 kHz 20 kHz 96 KB/s 144 KB/s
Recorded Signal
b
Input X-weighted
Input C-weighted
Input Z-weighted
Use this parameter to select the frequency weighting of the
recorded signal
Note 1: The frequency weighting of the recorded signal can
be selected independently of the frequency weighting of the
measurement and the signal at the earphone socket
Note 2: X = frequency weighting A or B. ‘A’ requires that the
Broadband (excl. Peak) parameter is set to AC or AZ. ‘ B’
requires that the Broadband (excl. Peak) parameter is set to
BC or BZ