User Manual

31
During recording, the number of record channels and sample rate are displayed, along with the Record speed
rating. This gives you the exact performance capabilities of the specific microSD card. “100 / 100” is the
best performance rating, and “1 / 100” is the worst and any microSD card showing this poor of performance
will be unable to keep up with recording at the selected number of channels and sample rate. If “1 / 100” is
displayed, the SD card dropout counter will start to count the number of dropouts or “glitches” in the
recording. If this occurs, you should either decrease the number of channels, decrease the sample rate, or
select a higher performance microSD card. microSD cards that are labeled “High Endurance” usually
perform the best over long periods of time. Lynx recommends testing your microSD card for the length of
recording you normally perform to ensure that it can keep up with the demands of streaming high-
performance multichannel audio.
6.2.10 SD Record Setup
The “SD Record Setup” page is where parameters can be established for recording to the SD card. Aurora
(n)
is
capable of recording interleaved files of 2, 4, 8, 16, or 32 channels of audio. The source can be the line inputs,
digital inputs, preamp inputs and/or streams played from the computer or through Dante (when applicable).
Individual channels can be selected, and the Aurora
(n)
will show how many channels have been selected and
the number of recording channels that will be included in the file in the top right corner of the display. For
instance, if two channels are selected, “2 of 2 channels” will be displayed. When a third channel is selected,
the Aurora
(n)
will switch to 4 channel recording mode and “3 of 4 channels” will be displayed. The “extra”
channel will simply contain silence. If no channels are selected, the Record button backlight LED will turn off
and pressing the Record button will do nothing, effectively disabling recording.
Aurora
(n)
will automatically record in 24-bit PCM broadcast wave format using a WAV file extension.
Normally, broadcast wave files have a 32-bit header (RIFF). Since 32-bit header files have a maximum size