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Ngara
User Manual
4.5.4 Change Disk
This menu item allows the flushing of the current logging session, without stopping the session. This allows the
change over of storage devices without any loss of data.
Upon selection of this menu item, a
Session Flushing
message will appear on the display to indicate flushing of
data to disk is taking place. Once this is completed, the user will be prompted to
Swap Disk
.
To swap a USB storage device using the LCD, the following steps must be carried out -
1. Activate menu item by pressing ENTER
2. Ngara will indicate the internal buffers are being flushed to disk by displaying “Session Flushing”
3. A Swap Disk message appears once the internal buffers have all been written to disk.
• The user then has 10 seconds to swap the USB storage device.
4. Ngara then checks the new USB storage device to determine if it is useable.
• A session error will be displayed on the LCD if the USB storage device is not useable.

This menu item is only accessible when a USB session is running.
4.5.5 WAV Setup
This menu item toggles the recording and format of raw PCM data. Allowable options are listed in Section 3.1.3.3.2.
To change the wav file recording setup, the following steps must be carried out -
1. Activate menu item by pressing ENTER
2. Ngara will display current setting
3. Toggle setting using
SELECT
4. Confirm selection by pressing
ENTER

All results are derived using
48kHz
setting

This menu item is not accessible when a USB session is running.
4.5.6 Time Weighting Setup
This menu item toggles the time weighting used during the exponential averaging. Allowable options are listed on
Table 17.
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