VoiceInterop AudioMate AM360r User Manual - page 10
www.VoiceInterop.com
8000 N. Federal Highway, Suite 100, Boca Raton, FL, 33487 V: +1 561.939.3300
0
AM360r User Manual
revised 2009.05.25 for
Hardware Rev. B
Firmware Version 1.00.24
NSQ (Noise Squelch) [deprecated] is only useful when the receive audio input of the
AudioMate 360r is connected to the radio receiver’s unsquelched discriminator source in
a conventional radio. The AudioMate 360r will determine the presence of received signal
based on the reduction in white noise from the radio. If this setting is selected, then the
NSQ Gain setting must also be configured for proper operation.
COS+NSQ (AND Squelch) [deprecated] computes the Boolean logic value of the COS
AND NSQ. That is, if the COS digital input is asserted and the NSQ detector is also active,
then the AudioMate 360r will stream receive audio to the IP network. The most common
application for this setting would be to use the noise squelch detector to ascertain that
an intelligible signal is present at the radio receiver while the COS input is connected to a
coded squelch detector (PL or DPL) to block out all but the desired users on the channel.
This is commonly referred to as “AND Squelch”.
ON activates the receive audio stream at all times, even when there is no receive audio
to send. Note that this setting can interfere with proper operation of console channel
patches. Use this to establish an audio trunk for tone remote control.
VOX enables voice activation of packet streaming for radios that do not provide the far
superior hardware COS logic output to indicate that they are receiving a signal. When VOX
is selected the
Vox Threshold
and
Vox Hang Time
become active.
COS Polarity
sets the AudioMate 360r unit to begin streaming audio to the IP network when
the COS hardware logic input is held either low (approximately 0 Volts) or high (3-12 Volts).
Consult your radio documentation to determine the proper setting.
Receive De-Emphasis Enable
will apply a 6dB per octave roll-off of high frequencies; this is
effectively a low-pass filter using an industry standard curve in cases where the audio input
to the AudioMate 360r is connected to the discriminator output of a conventional radio.
Check this box to enable the de-emphasis low-pass filter or clear the check box to allow
the receive audio to pass through the AudioMate 360 with no equalization (flat audio).
Receive Gain
accepts a number from 0 to 63 representing 64 steps of gain or attenuation in
the audio line from the attached radio receiver. Level 0 represents the lowest audio level
while 63 represents the highest audio level. Default is 31.
NSQ Gain
sets the squelch level provided by the AudioMate 360r when the receive audio
input is connected to the discriminator output of a conventional radio. This setting is only
useful when NSQ or COS+NSQ is selected in
Analog Receiver to VoIP Mode
above. It is
also likely that you will want to check the box for
Receive De-Emphasis Enable
as well.
Default is 15.
VOX Threshold
sets the relative audio level that will trigger the transmission of packets to
the IP network. Note that this setting interacts with the
Receive Gain
setting. The best
practice is to set the
Receive Gain
properly, then adjust this
VOX Threshold
for best
performance. Default value is 0. To enable VOX, set
Receiver to VoIP Mode
to VOX.
VOX Hang Time
sets the period during which audio packets will be streamed to the IP
network after the input audio falls below the
VOX Threshold
level. Setting this value
between 1 to 2 seconds provides for smoothest operation. Default value is 1.0 seconds. To
enable VOX, set
Receiver to VoIP Mode
to VOX.
About VOX
VOX should be used only as
a last resort. VOX can cause
operational problems if not
configured carefully.
The VOX detector listens for
audio above the configured
threshold. ANY sound will
trigger the streaming of
packets.
It is always preferable to use
the hardware COS signal if
the radio provides it.
About VOX
VOX should be used only as
a last resort. VOX can cause
operational problems if not
configured carefully.
The VOX detector listens for
audio above the configured
threshold. ANY sound will
trigger the streaming of
packets.
It is always preferable to use
the hardware COS signal if
the radio provides it.