IP column loudspeaker User Manual
8
Coding mode
Intercom or broadcast code, PCM means uncompressed data, ACPCM
means compressed data( Small amount of network data )
Line input volume
The volume of the audio line input
Line input sound source
IP column loudspeaker input audio source ( microphone, line input )
Intercom sampling rate
IP column loudspeaker sampling rate of intercom
（
8000Hz
，
22050Hz
）
Intercom output volume
IP column loudspeaker total output volume of intercom
（
0~15,6 grade is
0dB
）
Broadcast sampling rate
IP column loudspeaker sampling rate of broadcasting
（
8000Hz
，
22050Hz
）
Broadcast output volume
IP column loudspeaker total output volume of broadcasting0~15,6 grade is
0dB
）
Audio priority
It can select local and network priority, the default is network priority.
Network priority: IP broadcast>PTT broadcast>ling input
；
local priority
：
line
input>IP broadcast>PTT broadcast
Power amplifier normally
open
Power amplifier normally on-off or power amplifier open configuration, it
defaults to normally on-off.
Normally on-off: when receiving server broadcast or line input audio,
power amplifier open automatically.
Power amplifier normally open: no matter the audio can be received or
not, power amplifier will be open always.
Examination mode(only
for constant voltage
back-up device)
please select use the examination mode or not.
Use: Start using the examination mode, the system will shield line input
and 2.4G wireless handset function.
Prohibition: normal mode
Remarks: The user can batches setting on "WEB batches configuration
tools" starting or prohibiting examination mode.
Network monitoring time
Setting network monitoring time, it is available only in the examination
mode.
Configuration coverage is between 100ms-3000ms, it defaults to 500ms.
Audio automatic detection function
In order to avoid line noise and sound resource produced noise output from the loudspeaker, when line input audio range
less than a specific value (Line input threshold), the amplifier will be closed with 1 min. Line input threshold is set from audio
parameters in web page, The audio range lowest level requirements is grade one, the highest is grade five.
Wireless amplification sampling rate
（
select 2.4G wireless module is available)
In web page, audio parameters can select different wireless amplification sampling rate, select the remote distance can
acquire further transmission distance, select high quality can acquire higher tone quality, the distance is relatively shorter.
Password Setting
You can revise the web page logining account and password from the WEB management parameters.
Summary of Contents for NAS-8507B
Page 1: ......