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6.9

Signal Present

You can set parameters for when a channel accepts a signal. You can

set specific parameters for each input channel and for the output

channel.

To adjust the Signal Present settings for a channel:

Step 1

On the appliance Web UI’s main page, select

DSP

Step 2

Select the

Menu

button for the channel.

Step 3

From the drop-down menu, select

Signal Present

Figure 14, Signal Present Parameters

Note:

If you want to return to the factory settings, select the

Reset

icon that appears in the right corner.

Содержание NYQUIST NQ-GA20P2

Страница 2: ......

Страница 3: ...ters 6 4 Setting Configuration Tab Parameters 8 5 Accessing Log Files 11 6 Setting DSP Parameters 15 6 1 Setting the Channel Level 16 6 2 Muting a Channel 17 6 3 Adjusting Compression Settings 17 6 4 Setting High Pass Low Pass Parameters 19 6 5 Adjusting the Limiter 22 6 6 Adjusting Outputs 23 6 7 Adjusting Parametric Equalizer Settings 24 6 8 Settings 26 6 9 Signal Present 27 ...

Страница 4: ...iv ...

Страница 5: ...Figure 5 Appliance Configuration Settings 10 Figure 6 Logs 12 Figure 7 DSP Page with Channel Drop Down Menu 15 Figure 8 Compressor Settings 17 Figure 9 High Low Pass Parameters 19 Figure 10 Limiter Settings 22 Figure 11 Outputs 23 Figure 12 Parametric Equalizer Settings 24 Figure 13 Settings Parameters 26 Figure 14 Signal Present Parameters 27 ...

Страница 6: ...vi ...

Страница 7: ...ble 2 Appliance Dashboard Buttons 4 Table 3 Network Settings 7 Table 4 Configuration Settings 11 Table 5 Logs 13 Table 6 DSP Page 16 Table 7 Compressor Settings 18 Table 8 High Pass Low Pass Parameters 20 Table 9 Limiter Settings 22 Table 10 Signal Present Parameters 28 ...

Страница 8: ...viii ...

Страница 9: ...permit standalone PoE opera tion over the local network You can let the Nyquist server or system controller automatically dis cover and configure the NG GA20P2 or you can manually configure it through the appliance s web based user interface web UI A short press of the appliance s Reset button reboots the device If you press the Reset button for 10 seconds the appliance returns to the factory defa...

Страница 10: ...he IP address for the appliance as the URL b From the Nyquist web UI navigation bar select Sta tions select Stations Status navigate to the device that you want to configure and then select the Link icon Step 2 At the Nyquist Appliance Login page enter username and password and then select Login Figure 1 Nyquist Appliance Login ...

Страница 11: ...rd Read Only Fields Device Type Identifies the physical device used by the station Serial Number Identifies the serial number for the device MAC Address Specifies the Media Access Control MAC address which is a unique identifier assigned to network interfaces for commu nications on the physical network segment Firmware Version Provides the firmware version installed on the station ...

Страница 12: ... configuration settings from the server Network Settings Accesses the Network Settings page where you can view and set network settings such as the static IP address Firmware Update Accesses the Firmware Update page where you can view the current Nyquist version check for updates restore factory settings and reboot the appliance Logs Accesses log files which record either events or messages that o...

Страница 13: ... navigate to the file s location After you select the file select Upload If Nyquist discovers a new firm ware version the Firmware Update page displays an Update Firmware button Select this button if you Note A Nyquist appliance connected to the Nyquist network receives a config uration file from the Nyquist server that includes the latest firmware available from the server If the firmware is late...

Страница 14: ...ttings Step 4 Select Reboot Appliance to restart your appliance 3 Setting Network Tab Parameters Network settings can be configured dynamically by the Nyquist server or manually by using the appliance s web UI To manually configure network settings Step 1 On the appliance web UI s main page select Network Settings Step 2 Select your desired network settings Step 3 Select Save ...

Страница 15: ...IP Identifies the fixed IP address assigned to the appliance by a system administra tor Netmask Identifies the subnetwork subdivision of an IP network Gateway Identifies the address or route for the default gateway VLAN ID Identifies the Virtual Local Area Network VLAN for this appliance Values range from 0 to 4094 ...

Страница 16: ... VoIP phone and appli ance provisioning A TFTP server runs on the Nyquist server on port 69 the stan dard TFTP port Device provisioning files are stored on the Nyquist server in directory srv tftp This is the only directory exposed by the TFTP server DHCP Server Over ride Indicates if you want to override the TFTP server information provided by the Dynamic Host Configuration Protocol DHCP via opti...

Страница 17: ...I To manually configure your Nyquist appliance Step 1 On the appliance Web UI s main page select Configu ration Settings Step 2 Select your desired settings Step 3 Select Save Note Manual configuration will be overwritten by the server once the appli ance is connected and discovered by the server ...

Страница 18: ...10 The following table describes the Configuration tab settings Figure 5 Appliance Configuration Settings ...

Страница 19: ...og into the appliance SIP Username Provide the username used for Session Initiation Protocol SIP device registra tion SIP Password Provide the password used for SIP device registration SIP Confirm Pass word Re enter the password used for SIP device registration Server Identifies the IP address of the Nyquist server Local Port Identifies the local port Emergency All Call Identifies the IP address p...

Страница 20: ...On the appliance Web UI s main page select Logs Step 2 From the drop down menu select the log that you want to view Multiple versions of the same log and zipped copies of the log may be available Step 3 To export the file select Export A link to a txt file appears in the screen s lower left Available logs are described in the following table Figure 6 Logs ...

Страница 21: ...d debug information dmesg Contains kernel ring buffer information When the sys tem boots up the screen displays information about the hardware devices that the kernel detects during the boot process These messages are available in the ker nel ring buffer and whenever a new message comes the old message gets overwritten dpkg log Contains information that is logged when a package is installed or rem...

Страница 22: ...s at which ter minals logouts system events and current status of the system and system boot time wvdialconf log Contains basic information about the modem port speed init string and Internet Service Provider ISP Table 5 Logs Continued Log Description ...

Страница 23: ...u can adjust settings in the DSP The appliance uses traditional processors for example Compressor Limiter for audio signals in the digital domain The DSP page shows Mute and Level selections for the input channel and allows you to set the input and output channel level Figure 7 DSP Page with Channel Drop Down Menu ...

Страница 24: ...he level for the selected channel Table 6 DSP Page Mute Silences the audio Level Adjusts the channel volume leve in 1 dB increments Compressor Lessens the dynamic range between the loudest and quietest parts of an audio signal High Low Pass Sets the band of frequencies that will pass through the high pass and low pass filters and selects the type of filter that is used Limiter Prevents a signal fr...

Страница 25: ...channel 6 3 Adjusting Compression Settings A compressor slightly reduces the dynamic range of a signal This effect is perceived to quiet loud sounds and boost quiet sounds A compressor smooths transients Compressor parameters are set per channel The Compressor dialog box has LEDs for the input and output signals To adjust the compressor settings for a channel Step 1 On the appliance Web UI s main ...

Страница 26: ...udio signal passes the threshold level The range is 1 to 500 ms Hold Sets how long the compressor is on after the signal has fallen below the threshold The range is 1 to 500 ms Decay Sets the rate of turn off of the compressor after the signal is below the threshold he range is 0 to 2000 ms Knee Sets how the compressor reacts to signals once the threshold is reached Increasing the knee level decre...

Страница 27: ...p down menu option To adjust the high low pass parameters for a channel Step 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel Step 3 From the drop down menu select High Low Pass Step 4 Set the parameters described in the following table Figure 9 High Low Pass Parameters Note If you want to return to the factory settings select the Reset icon that appea...

Страница 28: ...y You can adjust the frequencies by moving the knob or by dou ble clicking the knob and typing the fre quency When typing the frequency only numeric values from 20 Hz to 20 000 Hz can be entered The high pass filter attenuates content below this frequency and lets frequencies above this cutoff frequency to pass through the fil ter Type Available filter types are Linkwitz Riley 12 24 and 36 dB per ...

Страница 29: ...larly effective when hand held microphones are used Frequency Set the cutoff frequency You can adjust the frequencies by moving the knob or by dou ble clicking the knob and typing the fre quency When typing the frequency only numeric values from 20 to 20 000 can be entered The low pass filter attenuates content above this frequency and lets frequencies below this cutoff level to pass through the f...

Страница 30: ...tep 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel or select the Menu button for the Output Step 3 From the drop down menu select Limiter Step 4 Adjust the following settings as needed Figure 10 Limiter Settings Note If you want to return to the factory settings select the Reset icon that appears in the right corner Table 9 Limiter Settings Threshold...

Страница 31: ...the Menu button Step 3 From the drop down menu select Outputs Step 4 To enable outputs for a speaker or line select Enable for the corresponding output Decay Sets the rate for turn off of the limiter after the signal is below the threshold Decay range is 5 to 2300 milliseconds RMSTC Sets how fast the limiter reacts to the above threshold signal RMSTC range is 50 to 10000 Figure 11 Outputs Table 9 ...

Страница 32: ... bandwidth or Q The parameter equalizer settings for your device allows you to adjust the Q and gain for seven separate frequencies which then become plot points on the screen s graph To adjust the parametric equalizer settings for a channel Step 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel Step 3 From the drop down menu select Parametric EQ Figure...

Страница 33: ... sets how wide to either side of the selected frequency the adjacent frequencies are affected Q is the Quality or Quality Factor which refers to the bandwidth of one band of a parametric equalizer Q is calculated by dividing the center frequency in Hz by the width of the boost or cut zone 3 dB or 3 dB above or below 0 dB Step 6 For each frequency use the Gain knob or double click the knob and type...

Страница 34: ...ep 2 Select the Menu button for the channel Step 3 From the drop down menu select Settings Step 4 Type the name that you want to display for the channel Step 5 Select a color that will be used to highlight the channel Step 6 Select Save Figure 13 Settings Parameters Note If you want to return to the factory settings select the Reset icon that appears in the right corner ...

Страница 35: ... channel To adjust the Signal Present settings for a channel Step 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel Step 3 From the drop down menu select Signal Present Figure 14 Signal Present Parameters Note If you want to return to the factory settings select the Reset icon that appears in the right corner ...

Страница 36: ...ngs as needed Table 10 Signal Present Parameters Threshold Sets the threshold level or at what level the Signal LED is illuminated Hold Sets the number of milliseconds that the sig nal light stays on after the signal is no longer present ...

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