70 NexLog Recorder User Manual v2.2.0
All boards also have an "Enable" checkbox to enable or disable a board. By
default when boards are added to the system they are enabled. Note that if you
disable a board it will not record. It may be necessary to disable a board if you’re
upgrading to a board with a higher channel capacity or if the board is
malfunctioning and needs to be replaced. In some installations it’s a good idea
to disable a board before making settings as to not make recordings before, for
example, naming your channels.
The remainder of the informational and editable fields on the 'Edit Boards" page
are dependent on the board type:
Digital PBX Tapping Board
(Audio codes NGX) 8-channel, 16-channel, and 24 channel versions
Firmware Version: The version of the firmware loaded onto the PBX card, for
diagnostic purposes only.
PBX Type: For a NGX Board to be able to record from a PBX, the PBX Type
configured must be set to the model of the connected PBX. For PBX Model,
version, and phone set compatibility, please contact Eventide.
Telco Encoding: This is the companding used on the digital voice sent between
the PBX and the Phone. This is the format of the voice actually sent across the
wire and is unrelated to any companding or compression codecs used to store
the data on the recorder itself. If this is set incorrectly for your PBX, the
recorded audio will sound scratchy and overdriven. MULAW is generally much
more common than ALAW.
Eventide Analog Boards
8-channel, 16-channel, and 24 channel versions
Encoding: With the Analog board, all channels on the board must be set to the
same Compression format. This setting is configured here. GSM 13Kbps will
produce recordings that use the least amount of disk space, while Mulaw
64kbps will provide the best audio quality at the expense of using approximately
five times as much storage space. Note that Mulaw recording is only supported
on systems with four or less Analog boards. 16kbps and 32kbps ADPCM will
provide intermediate compression options.
Notch Frequency: The Analog Board provides a Notch Filter to Notch out tones
in the input signal. The frequency to notch must be configured on a board wide
basis. In addition, the Notch Filter needs to be enabled for each channel on the
board, so you configure the frequency here, and then which channels on the
board it should be applied to.
Enable MDC1200: If enabled, this board will process MDC1200 Radio tones
which provide RadioID information (who is talking) on some Analog Radio
systems. In addition, an add-on license key must be installed to allow the
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