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Device Window – Output Tab 

Output Section 

Description 

The DX1208 has eight balanced, line-level Analog Output Channels having a max peak output 
level of +24 dBu.  All Output Channels have digital 

Gain

Meter

Solo

, and 

Mute

 controls which 

appear in the Channel Strip at the bottom of all Device Window tabs except the Automix tab. 

Parameters 

• 

Channel Select

 

Selects the Output Channel that is controlled by the Output tab. 

• 

Channel Name

 

Output Channels can be given a 

Channel

 

Name

 of up to 32 

characters in length. 

• 

Meter

 

Displays the instantaneous peak signal level of the Output 
channel immediately prior to the output D/A converter. 

• 

Fader / Gain

 

Controls the gain of the Output Channel after the Crossover and 

Mute

 switch, but prior to the Limiter and Delay.  Gain can be 

applied from [-99] to [+20 dB] in [0.1 dB] steps using the 

Gain

 

textbox, or from [-38] to [+20 dB] by dragging the 

Fader

 handle; 

dragging the 

Fader

 handle all the way to the bottom sets the 

Gain

 

to [-99 dB].  <

CTRL+CLICK>

 in the channel Meter to reset 

Gain

 

to unity. 

• 

Mute 

Mutes

 the Output Channel.  The 

Mute

 is applied between the 

Crossover and the 

Fader

• 

Solo 

Soloing

 an Output Channel mutes all Outputs that are not 

Soloed

Soloing

 an Input Channel mutes all Inputs that are not 

Soloed

.  

However, 

Solos

 do not override existing 

Mutes

, so any channel 

that is both 

Muted

 and 

Soloed

 will not be heard.  If both Input and 

Output Channels are 

Soled

 at the same time, make sure that all 

Input Channels routed to the 

Soloed

 Outputs are also 

Soloed

, or 

they will not be heard. 

EQ 

Description 

Each of the eight DX1208 Output Channels is equipped with a fully-configurable eight-band 
EQ, which occurs in between the Matrix Mixer Output and the Channel Crossover Filters in the 
DX1208 signal chain.  Each EQ band can configured as a Parametric, High/Low Pass, or 
Shelving Filter, and can be individually enabled or disabled. 

These Filters are functionally identical to the Input Channel Filters described in the 

Input EQ

 

section of this helpfile.  Those Output Channel EQ controls that differ from their Input Channel 
EQ counterparts are described below. 

Parameters 

• 

Parametric EQ Bypassed

 Bypasses all eight Filter bands at the same time without 

changing any Filter’s settings. , disabling the entire EQ while 

 

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Summary of Contents for DX1208

Page 1: ......

Page 2: ...ol A user interface or hardware item that provides the means to control or view a parameter For example the equalizer frequency gain handle in the EQ graph allows you to control both the equalizer fre...

Page 3: ...DX series hardware devices can communicate simultaneously over all supported communications interfaces For example a DX1208 can simultaneously communicate with one local instance of DX Navigator via...

Page 4: ...ab allow the user direct control over every parameter of the selected hardware device as well as visibility to real time meter data Device Windows opened from the Design tab on the other hand cannot c...

Page 5: ...see EAWC DX Family USB Serial Port followed by a COM port number Select this COM port number for USB communications or the appropriate Communications Port number for RS 232 communications Selecting th...

Page 6: ...this mode DX Navigator polls the network for only those units specified in the Target IP Addresses list All other DX units present on the network are excluded from polling Using Specify Target IP Add...

Page 7: ...not appear in the Found Devices list Add Adds the IP Address specified in the IP Address text box to the Target IP Addresses list Remove Removes the selected IP Address from the Target IP Addresses li...

Page 8: ...instances of DX Navigator Therefore if there are 4 or more concurrent instances of DX Navigator running on the network the device will appear in the Found Devices list of only the first three instance...

Page 9: ...ertain time period then DX Navigator deems that the unit has gone offline and drops the communication connection The connection can be dropped for obvious reasons such as a faulty comms cable or a dev...

Page 10: ...ut Output Channel Strip through a highly abridged version of the Settings tab Password Admin and User Passwords may be up to 16 characters in length contain any combination alphanumeric characters and...

Page 11: ...a hardware device from the Found devices tab or a device design from the Design tab Names can be up to 32 alphanumeric characters double quote and question mark characters are disallowed Device Names...

Page 12: ...dow for the design Because Permissions are hardware based the Password dialog doesn t appear The Permissions and Event Log controls are disabled in designs for the same reason The Design tab can hold...

Page 13: ...n the Devices tab They can be created saved and opened without affecting the operation of online hardware devices Like Device Names Site File names are reflected in the Title Bar of the Main Window Si...

Page 14: ...o another they cannot be cut or deleted as they can in the Design tab To copy the settings from one device to another 1 CLICK the Found Devices tab to select it 2 With DX Navigator online CLICK on the...

Page 15: ...sign tab settings can be copied from one design to another and devices can be both created and deleted The method for copying one design onto another is identical to that described in the previous exa...

Page 16: ...ns whereas using the Delete command simply removes the design without affecting the contents of the clipboard Found Devices Design Tabs Between the two tabs design settings can be uploaded to online h...

Page 17: ...written to the design EXCEPT for Permissions Event Log data and Presets 7 A new design is created with the name Copy of Device Name Repeat steps three through six for every device you wish to archive...

Page 18: ...you wish to restore 5 Select Copy from the Edit menu 6 In the Found Devices tab CLICK on the device you want to restore the copied settings to and select Paste from the Edit menu OR 7 From the Design...

Page 19: ...devices the first time Device Windows are opened in a session Cut Deletes the selected design and places the design settings into the Windows Clipboard for subsequent use in Paste operations Cut is av...

Page 20: ...playing parametric EQ bandwidth Q Displays bandwidth in Q quality factor BW Displays bandwidth in fractional octaves BW log F2 F1 log2 Help About Lists the installed version of DX Navigator software S...

Page 21: ...X Link Output Channels Unmute All Unmutes all Input Output DX Link Input and DX Link Output Channels Online Status When a unit is online the indicator in the upper right corner of the Device Window is...

Page 22: ...Channels can be given a Channel Name of up to 32 characters in length Mic Pre Controls the gain of the analog microphone preamplifier for balanced Inputs 1 8 Mic Pre gain can be set to 0 20 40 50 and...

Page 23: ...ack of the system Gates accomplish this task by effectively acting as volume dependent mute switches when the signal volume exceeds a defined threshold then the gate opens is unmuted and the signal pa...

Page 24: ...greater than the system can allowably reproduce This is primarily because there are limits to both the minimum and maximum acceptable SPL level of the system defined exclusively by the acoustical envi...

Page 25: ...knee transfer curve to reduce the pumping sound often heard with hard knee compression With soft knee compression gain reduction actually begins 3 dB below the Threshold The figure below illustrates...

Page 26: ...aurant or bar The program level of the different TV stations programs and songs will vary widely but all need to be sent to the speakers at a relatively constant volume so that quiet material will not...

Page 27: ...eds and CD music sources set the Threshold approximately 10 to 15 dB below the Target Attack Attack controls the rate of volume change both increase and decrease when the source volume exceeds the Thr...

Page 28: ...the Compressor and the Ducker in the DX1208 signal chain Each EQ band can configured as a parametric high low pass or shelving filter and can be individually enabled or disabled Parameters Selected D...

Page 29: ...ut changing any Filter s settings Reset Channel EQ Resets all Filter parameters to their factory default settings EQ Graph The response of the Input Channel EQ is plotted graphically shown below The o...

Page 30: ...s in yellow with a yellow Freq Handle 2 For Low High Pass Filters shown above DRAG the yellow Freq Handle left right to adjust the Frequency for Shelving Filters DRAG the handle up down to adjust the...

Page 31: ...ecified Threshold The rate at which the Ducker changes the volume during and after a priority trigger can also be adjusted As an example of how a ducker might be used in practice a typical airport may...

Page 32: ...at the same time then all channels assigned to Priority 2 and 3 will be lowered in gain in dB by the Depth 1 setting and all channels assigned to Priority 4 and 5 would be lowered in gain by the large...

Page 33: ...detected signal crosses and remains above the Threshold for 300 ms and the Attack is set to 200 ms the Release to 600 ms the Hold to 600 ms and the Depth to 30 dB then gain is reduced by only 22 5 dB...

Page 34: ...nclude creating independent mixes of the same source material for different areas or zones within a facility When combined with automixing a matrix mixer may be used to setup mixes for clusters of spe...

Page 35: ...g it harder in larger systems to apply sufficient gain to make the on mic sources audible The fast pace of unscripted dialog exchange also makes it exceedingly difficult to anticipate when gain change...

Page 36: ...s and automix gain is applied to it Enable Automix Enable Automix enables automixing for the selected Matrix Output Channel When Disabled then no automix gain reduction is applied to any channel assig...

Page 37: ...tes the Output Channel The Mute is applied between the Crossover and the Fader Solo Soloing an Output Channel mutes all Outputs that are not Soloed Soloing an Input Channel mutes all Inputs that are n...

Page 38: ...h controls are disabled Type When a Crossover Filter is Selected Type sets the Filter type from amongst the following choices 6 dB 12 dB Butterworth 12 dB Bessel 12 dB Linkwitz Riley 18 dB Butterworth...

Page 39: ...on Each of the eight DX1208 Output Channels is equipped with a Limiter that occurs between the Output Fader and the Delay in the DX1208 signal chain The Output Channel Limiter is in all respects ident...

Page 40: ...ess transient overloads They also use hard knee compression so that signals can get as close to the threshold as possible before gain reduction is applied which adds THD when very fast attack and rele...

Page 41: ...ed together in the Matrix From the ODX Matrix Outputs the signals are routed to the Fader and Mute controls in the DX Link tab where they are labeled ODX 1 through ODX 16 They are then routed directly...

Page 42: ...activated directly by switch or relay closure or driven by a TTL CMOS open collector Logic Output capable of sinking at least 0 35 mA of current Momentary contact switches are preferred as latching sw...

Page 43: ...The Action setting determines whether the input remains active after the trigger signal becomes FALSE Momentary With Momentary inputs the Function is activated when the input is TRUE and deactivated w...

Page 44: ...ulled high internally to 5V through a 340 ohm resistor They can sink up to 12 mA of current and drive an LED directly Logic Outputs can be set active high 4 8V unloaded or active low 0 4V unloaded Whe...

Page 45: ...ess of whether the Logic Inputis Enabled and regardless of which Function and Active states are defined Comm Remote This output is active whenever communication is received from an Enabled remote cont...

Page 46: ...n unique addresses across multiple DX1208 units in a system since each DX1208 is aware only of the Remotes connected to its own Remote Bus When the DX1208 powers up it queries the Remote Bus for the p...

Page 47: ...Remote Controls themselves do not store any configuration information If a Remote Control is moved to a different DX1208 it must be reconfigured from the Remotes tab of the new DX1208 Remotes Paramet...

Page 48: ...unused ID Up to 100 Remotes can be added to the Remotes list inclusive of all Remotes present at power up Clear Removes the selected Remote from the Remotes list Clearing a Present Remote clears the N...

Page 49: ...ed only as long as the button is pressed and held Latching The Button Function is activated when the button is first pressed and remains activated when released it is deactivated when pressed and rele...

Page 50: ...Selects which of the four buttons to which the Button Action Function and Select controls apply Device Window Settings Tab Presets Description The DX1208 allocates 24 namable Preset memories for stori...

Page 51: ...e parameters are updated to the new values Store Stores the current values of all device parameters except where noted above as well as the Preset Name into the Selected Preset Clear Erases the Select...

Page 52: ...oth blank If the Password for either Permission Level is blank then simply clicking the Login button gives the user de facto permission for the selected Permission Level Once a Password is set the cha...

Page 53: ...ith the logical configuration and topology of the network Failure to adhere to the administrator s IP assignment conventions may cause communications failures not only with the DX device but also with...

Page 54: ...fferent subnets see Communications Setup An example of this would be where you have a computer running DX navigator at your office and want to connect to the devices at a client s site over the intern...

Page 55: ...ices placed on the same subnet MUST use the same subnet mask The largest subnet masks corresponding to the private IP address ranges listed above are as follows Name Subnet Mask 24 bit block 255 0 0 0...

Page 56: ...r purposes of this example let each Windows computer configure its own IP address Because DX devices do not support zeroconf link local addressing their IP address will need to be manually configured...

Page 57: ...is having trouble discovering one or more units on the network then you can use Windows built in IP communications verification applet to determine whether your computer is able to send and receive I...

Page 58: ...IP settings of the computer you are using type ipconfig all at the prompt The computer returns both the IP settings of the device as well as other useful information such as the NIC card s MAC addres...

Page 59: ...til the Event Log fills up again Event types include administrator and user logins power ons and error messages Contents of the event log are displayed in the UI in a tabular format Each log of the li...

Page 60: ...th hardware troubleshooting Current Time The Current Time display mirrors your computer s date and time settings The Event Log time stamps all events relative to the Current Time Setting up your compu...

Page 61: ...Properties window Select Start on the Windows Taskbar and then choose Control Panel Date Time or DOUBLE CLICK on the Time Display in the lower right corner of your computer s screen 2 Select the Time...

Page 62: ...ternet Time tab and choose one of the time servers listed in the Server drop down menu CLICK the Automatically synchronize with an Internet time server checkbox and press the Update Now button CLICK O...

Page 63: ...is not then the signal is either not valid or the signal is asynchronous with respect to the unit s internal sample clock When this condition occurs verify that the DX Link Master Slave settings for a...

Page 64: ...the Settings tab appears All other tabs are hidden From this window users may load Presets refresh and save the Event Log and view the DX Link Status They can also view the Input Output Channel Strip...

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