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Cedar DNS3000 Manual Download Page 37

CEDAR DNS3000 dialogue noise suppressor 

33 

Firmware maintenance 

Upgrading 

The DNS3000 firmware can be upgraded over the Ethernet network. Please refer to the 
instructions received with the upgrade software. 

Special boot options 

Holding certain buttons as the unit is switched on triggers special boot behaviours as follows: 

CHAN2 

Disable DHCP and use the default IP address 192.168.0.1. This is useful if the Ethernet port is 
required for a reprogramming/upgrade operation, but the network in use does not have a DHCP 
server. 

BYPASS 

Boot into the bootloader. Do not boot the code proper. 

 HIGH + CHAN1 

Make an internal backup of the firmware. 

 MID + CHAN1 

Restore the firmware from the internal backup (if it exists). 

 LOW + CHAN1 

Erase the firmware (but not the backup, if any exists). 

Boot options which include BYPASS work only during a ‘cold’ reboot (i.e. switching on using the 
power switch on the back). When such an operation is complete the unit must be power-cycled 
using the power switch the back. The progress of any operations on the firmware is indicated by 
the Activity LEDs and operation is complete when only the right-most red Activity LED is left 
flashing. 

Summary of Contents for DNS3000

Page 1: ... 2008 Copyright CEDAR Audio Ltd 2008 CEDAR is a registered trademark of CEDAR Audio Ltd E OE Subject to revision at the Company s sole discretion interstage Phistersvej 31 2900 Hellerup Danmark Telefon 3946 0000 fax 3946 0040 www interstage dk pro audio with a smile ...

Page 2: ...CEDAR DNS3000 dialogue noise suppressor ...

Page 3: ... and tutorials 10 Case 1 Suppressing traffic noise 10 Case 2 Suppressing tape hiss 12 Case 3 Suppressing excessive reverberation 13 Advanced use 14 System pages 15 Using Scenes 18 Remote Control 23 Installing the DNS Software 24 Using the RCS 26 RCS Tutorial 28 Contact Information 31 Technical Support 32 Firmware maintenance 33 Specifications and CE Certificates 35 Licence and Limited Warranty 37 ...

Page 4: ...ii ...

Page 5: ... DNS1500 the Pro Tools integration of the DNS2000 plus an internal system of scenes memories and when slaved to timecode snapshot automation with moving faders Quality speed and simplicity are paramount considerations in the DNS range and all three models offer the following Near zero latency A group delay of less than 10 samples typically less than 1 200th of a frame so there is no loss of lip sy...

Page 6: ...CEDAR DNS3000 dialogue noise suppressor 2 ...

Page 7: ... audio devices such as amplifiers that produce large amounts of heat Power sources The DNS3000 features a universal power supply that will work safely on any mains supply in the ranges 85V to 260V 50Hz or 60Hz AC only The unit should always be grounded or earthed and power connectors should be routed so that they will not be walked on or pinched If the unit is not to be used for an extended period...

Page 8: ...To maintain reliability and prolong operating life observe the following environmental considerations the nominal temperature should be maintained between 5 and 35 Celsius relative humidity should be in the range 30 to 80 non condensing strong magnetic fields should not exist nearby Mains power inlet and switch Mains power is provided using the standard IEC power cord supplied with the DNS3000 Mai...

Page 9: ...cable terminated with an XLR plug The AES EBU output of the DNS3000 should be connected to the AES EBU input of a recording device or external DAC Locking The DNS3000 will automatically detect which input to use and will lock to any sample rate presented up to 96kHz If the sample rate is not one of the standard sample rates the filter table for the nearest standard will be used and scaled accordin...

Page 10: ...nal memory of the unit Channel Selection Channel Selectors The channel selection buttons select which processing channel s is are connected to the process controls When the CHAN1 button is lit the process controls affect the processing on channel 1 When the CHAN2 button is lit the process controls affect the processing on channel 2 You can apply the same settings to both channels by pressing CHAN1...

Page 11: ...osted Screen Softkeys In addition to the Power on off button there are nine small buttons in the upper section of the panel In general those that are active at any given moment are illuminated while those that are inactive are extinguished Soft buttons Use to select menu items as displayed on the screen Close button Takes you back to the previous screen if there is one and saves changes if applica...

Page 12: ...oose any one of six possible processing ranges Low 20Hz 400Hz Mid 200Hz 6kHz High 4kHz 18kHz Low Mid 20Hz 6kHz Mid High 200Hz 18kHz Full Range 20Hz 18kHz To select Low Mid or Mid High press the appropriate two buttons simultaneously or in quick succession To select Full Range press the Low and High buttons simultaneously or in quick succession Selecting a range concentrates all of the filters with...

Page 13: ...ty LEDs offer a visual indication of the activity in each of the six bands controlled by the Band Gain controls Both LEDs off Less than 0 5dB activity Green LED lit The signal is being attenuated Red LED lit The signal is being boosted The brightness of an LED offers an indication of the amount of attenuation or boost applied Each band controls numerous filters Therefore the Activity LEDs in a giv...

Page 14: ...elect Full Range Set all six Band Gain controls to 24dB Raise the Level control until the noise disappears At this point you have determined an approximate setting for the Level This is necessary for determining the Range but it is likely that you will refine this later in the procedure When the Level is close to the ideal setting you should see the Activity LEDs flicker in response to the signal ...

Page 15: ...in the lower ranges so you should not adjust it rapidly Third refine the Band Gain controls for optimum suppression Set all six Band Gain controls to 0dB Now increase and decrease the gain in each band separately while listening to the effect that each has on the noise This will identify the bands that contain the majority of the noise Do not be alarmed if all six bands contain significant noise T...

Page 16: ...e audio in the range Second optimise the Level control To determine the correct Level you should again follow the procedure described in case 1 Third refine the Band Gain controls for optimum suppression As in case 1 you should start with all six Band Gain controls at 0dB You should then increase and decrease each control individually to find the bands that contribute most hiss to the signal Becau...

Page 17: ...e and lower frequencies Even bare rooms with hard walls include these materials they are the actors Consequently you will find that Low Mid is almost always the most appropriate combination of ranges for suppressing reverberation Second set the Band Gain controls You should set all six Band Gain controls to 24dB This will ensure that provided the other controls are set correctly the DNS3000 proces...

Page 18: ...s using the CHAN1 and CHAN2 buttons The soft keys perform the following actions Preset opens the preset manager page Snpsht opens the snapshot manager page T Gain toggles the touch state of the gain control for the selected channel T Lvl toggles the touch state of the level controls for the selected channel System opens the system setup page When a parameter is touched it ignores any settings that...

Page 19: ...sary only after a firmware upgrade or after a faulty fader is replaced The procedure is as follows Move all the faders to the bottom of their travel and press 24dB Move all the faders to the top of their travel and press 6dB Move all the Gain faders to 0dB and the Level fader to 20dB i e in line with the others and press 0dB The Close button should now be lit Press this to save the calibration and...

Page 20: ...automatic the rest of the page shows the current settings for information only Manual If manual you may edit the network settings by scrolling to the wanted menu item and pressing Edit You may then use the Prev and Next buttons and the spinwheel to edit values in the usual fashion Settings are saved when you close the page Switching DHCP on or off takes effect at the next system boot Other changes...

Page 21: ... using the spinwheel when Mode is selected Auto If automatic the format field shows the current format for information only The format can only be detected while the timecode input is active and playing Manual Move to the Format menu item using the Prev and Next buttons and alter the value using the spinwheel Available settings are 24fps 25fps 30fps non drop 30fps drop frame ...

Page 22: ...ding of process parameters against an external timecode source This is done using the Snapshot Manager page When you create a snapshot the settings Level Gain Range On Off for both audio channels are stored along with the current frame number Those settings can then be automatically recalled whenever that frame number is subsequently encountered Note that a snapshot always stores the settings of b...

Page 23: ...ame Editor page for the selected preset Del All deletes all presets You will be asked to confirm this operation Name Editor Page Use the Next and Prev buttons to step through the character positions within the name If you press Next to move to an empty space the previous character will be inserted by default Use the spinwheel to rotate through the standard character set as desired Delete deletes t...

Page 24: ...s taken and any subsequent edit of the copy affects only the copy and not the original and vice versa Move moves the selected snapshot to the current time Delete opens the Delete Snapshot page reveals page 2 of the Snapshot Manager as below Play Stop toggles between the PLAY and STOP states Page 2 Recall recalls the selected snapshot Name allows you to name the selected snapshot see Name Editor pa...

Page 25: ...gs of the selected snapshot and the time at which it occurs Name Allows you to edit the name of a snapshot Time Done Allows you to edit the time of a snapshot Move Moves the snapshot to the current timecode as shown in the top right hand corner of the screen Ctrls Done Allows you to update the process settings held in the snapshot to the current settings as shown on screen Changes to the Time and ...

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Page 27: ...can control the DNS3000 s operation from within Pro Tools and automate the process settings of both channels System Requirements The DNS3000 should be used with Pro Tools version 7 or later Any Ethernet equipped Macintosh running OS X 10 4 x or later or PC running Windows XP SP2 and a suitable version of Pro Tools will support the RCS and processor unit Assumed knowledge This manual assumes that y...

Page 28: ...st be run in order to allocate which DNS3000 units on an Ethernet network are available to a given instance of the RCS Until it is run the RCS will only be able to see DNS2000 units connected by USB Allocating a unit to one PC Mac does not prevent it being allocated to another but is not recommended The Network Scanner may be run directly from the Device Selection list in the RCS see below Alterna...

Page 29: ...nd presets You may run it directly from Windows Start All Programs CEDAR Audio Ltd Pro Tools DNS OSX Applications CEDAR Backing up Select Backup settings Select the DNS3000 whose settings you wish to save Click on Next Choose a destination folder and filename Click on Next Choose whether you wish to save the unit s presets snapshots or both Click on Next Once the operation is complete the applicat...

Page 30: ...ct the DNS3000 to your Pro Tools system using an Ethernet cable but until you link it to the Remote Control Software it will do nothing The drop down list on the plug in displays all the units both DNS2000 and DNS3000 models that are currently connected to the system and in the case of the DNS3000 registered using the Network Scanner The list allows you to select which will be controlled by this i...

Page 31: ...allows you to monitor the processed or unprocessed signals It controls the DNS3000 s process on off button NOT its Bypass button Other controls The other controls provided within the Pro Tools header to the plug in window have generic operation and are described in the Pro Tools documentation Automation The Band Gain settings Level and Range Selectors appear in the Plug In Automation screen and to...

Page 32: ...n the previous case studies Level Control Your next job will be to identify the noise level of the audio With the appropriate range selected pull all six Band Gain controls and the Level control down fully Now increase the Level slowly At first you will hear very little happen but at some point determined by the noise content of the recording you will hear the noise disappear You should attempt to...

Page 33: ... reload this file when connected to a given DNS and the control parameters will be retrieved without changing the hardware selection The DNSQuickStart file shown selected below is an example of such a file and can be used to initialise the control settings of any DNS If a DNS is specified when you save a Settings file your system will attempt to reconnect to it when you reload that file ...

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Page 35: ...mail cedarusa cedaraudio com Asian Office Address CEDAR Asia David Robinson Tanglin Post Office PO Box 282 Singapore 912410 Telephone and Fax T 66 81 822 9227 F 66 2 619 1277 Email asia cedaraudio com German Office Address CEDAR Deutschland Rahestrasse 23 D 49525 Lengerich Germany Telephone and Fax T 49 5481 945087 F 49 5481 945088 Email info cedaraudio de Web English language www cedaraudio com G...

Page 36: ...g non CEDAR components This manual assumes that you are fully conversant with your Mac OS X and or PC Windows system s and that you know how to operate your Pro Tools host system If you encounter problems with your Macintosh MacOS X your PC Windows XP or Pro Tools please refer to the relevant manuals or contact the dealer that supplied these to you Unless appointed independently as authorised deal...

Page 37: ...work in use does not have a DHCP server BYPASS Boot into the bootloader Do not boot the code proper BYPASS HIGH CHAN1 Make an internal backup of the firmware BYPASS MID CHAN1 Restore the firmware from the internal backup if it exists BYPASS LOW CHAN1 Erase the firmware but not the backup if any exists Boot options which include BYPASS work only during a cold reboot i e switching on using the power...

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Page 39: ...ectors and good quality shielded cable suitable for digital audio Declaration of conformity Date of issue 1 April 2008 Equipment CEDAR DNS3000 dialogue noise suppressor Manufacturer CEDAR Audio Ltd Address 20 Home End Fulbourn Cambridge CB21 5BS UK This is to certify that the aforementioned equipment when used in accordance with the instructions in this manual fully conforms to the protection requ...

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Page 41: ...em contains confidential information of the Company and all copyright trade marks trade names styles and logos and other intellectual property rights in the System including all documentation and manuals relating thereto are the exclusive property of the Company The Licensee acknowledges that all such rights are the property of the Company and shall not question or dispute the ownership of any suc...

Page 42: ... is no longer produced or offered for supply by the Company or which the Company certifies has been superseded by a later version or has become obsolete 5 FORCE MAJEURE The Company shall not be liable for any breach of its obligations here under resulting from causes beyond its reasonable control including but not limited to fires strikes of its own or other employees insurrection or riots embargo...

Page 43: ...ocumentation or data provided by the Company or for any other indirect or consequential loss 11 ENTIRE AGREEMENT The Company shall not be liable to the Licensee for any loss arising in connection with any representations agreements statements or undertakings made prior to the date of supply of the System to the Licensee 12 TERMINATION This Licence may be terminated forthwith by the Company if the ...

Page 44: ...y Date Manufactured by CEDAR Audio Ltd 20 Home End Fulbourn Cambridge CB21 5BS UK Web www cedaraudio com Email info cedaraudio com Tel 44 1223 881771 interstage Phistersvej 31 2900 Hellerup Danmark Telefon 3946 0000 fax 3946 0040 www interstage dk pro audio with a smile ...

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