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DNS2000 

Dialogue noise suppressor 

 

 

 

 

 

 

 

CEDAR Audio Limited 

www.cedaraudio.com 

 

 

 

Manual v1.7 – 31 October 2012

 

Содержание dns2000

Страница 1: ...DNS2000 Dialogue noise suppressor CEDAR Audio Limited www cedaraudio com Manual v1 7 31 October 2012 ...

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Страница 3: ...DNS2000 hardware 7 Installing the DNS Control System Mac 8 Installing the DNS Control System PC 9 DNS Control System 12 Hardware indicators 15 Use 16 Suppressing traffic noise and other ambient sound 18 Suppressing tape hiss 20 Suppressing excessive reverberation 21 Specifications 22 EMC regulations 23 Licence and Limited Warranty 24 ...

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Страница 5: ... and quick to install Once you have loaded the DNS Control System software and if using the DNS2000 with a PC the hardware driver you can control all aspects of its operation from within Pro Tools and automate all its operating parameters Quality speed and simplicity are paramount considerations in the DNS2000 design and its features include the following Near zero latency The DNS2000 has a group ...

Страница 6: ...er Run this programme and then follow the on screen instructions to upgrade the firmware PC users The DNS2000 should be used with Pro Tools version 8 or later Any PC with a free USB port running Windows XP Vista or 7 and a suitable version of Pro Tools will support the DNS Control System and DNS2000 processor unit DNS2000 firmware To run the DNS2000 software under Windows the DNS2000 hardware will...

Страница 7: ...hanical vibration or periodic shocks The unit is not susceptible to excessive heat build up but should be installed away from heat sources such as radiators and audio devices that produce large amounts of heat Power sources The DNS2000 features a universal power supply that will work safely on any mains supply in the range 85V to 260V 50Hz or 60Hz AC only The unit should always be grounded earthed...

Страница 8: ...g Non CEDAR Components If you encounter problems with your Macintosh OSX your PC Microsoft Windows or Pro Tools please refer to the relevant manuals or contact the dealer that supplied these to you Unless appointed independently as authorised dealers for the following products CEDAR Audio s dealers will not attempt to provide technical support for Macintosh computers Mac OSX PCs of any description...

Страница 9: ...SA Telephone and Fax T 1 207 828 0024 F 1 207 773 2422 Email cedarusa cedaraudio com German Office Address CEDAR Deutschland Görlitzer Str 3 D 49525 Lengerich Deutschland Telephone and Fax T 49 5481 945087 F 49 5481 945088 Email info cedaraudio de Web English language www cedaraudio com German language www cedaraudio de Worldwide Dealer List For an up to date dealer list please visit www cedaraudi...

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Страница 11: ...nsiderations the temperature should be maintained between 5 and 30 Celsius relative humidity should be in the range 30 to 80 non condensing strong magnetic fields should not exist nearby Rear Panel Connections Audio The DNS2000 offers two audio connection standards It passes its signal to both outputs irrespective of the input used The standards are Digital SPDIF format Digital AES EBU format The ...

Страница 12: ...e plug in folder Double click on the installer package CEDARStudioInstaller mpkg Follow the instructions offered by the installer Ensure that you have sufficient space on your drive Press the Continue button when prompted and the software will be installed A message will appear to tell you that the operation has been completed successfully ...

Страница 13: ...ear to tell you that the operation has been completed successfully When the installation is complete click on Close DNS2000 driver Before connecting and using a DNS2000 for the first time on a given PC you will need to install the hardware driver Locate the appropriate driver installation software in the Win Driver folder on the CD that came with your DNS2000 If you are running a 32 bit version of...

Страница 14: ... 10 When the wizard has completed installation the following screen will appear to confirm that the software has been successfully installed ...

Страница 15: ...he wizard will ask whether you trust software from CEDAR Audio Ltd The exact message will differ according to which version of Windows you are running Click on the appropriate button to proceed Windows XP security message Windows 7 security message ...

Страница 16: ...ting any of these ranges concentrates all of the filters within the DNS2000 s filter bank across that part of the audio spectrum Level Control The Level Control tells the DNS2000 how much noise is present in the input Range Frequencies covered Low 20Hz 400Hz Mid 200Hz 6kHz High 4kHz 18kHz Low Mid 20Hz 6kHz Mid High 200Hz 18kHz Full Range 20Hz 18kHz ...

Страница 17: ...rs that are currently available and it allows you to select which processing engine will be controlled by this instance of the DNS Control System The DNS Network Scanner If you have DNS3000s on the same network as the Pro Tools system supporting your DNS2000 you can use the Scan Network option to detect these and assign them for local use Status If no processing engine is connected and or selected...

Страница 18: ...her error has occurred Further investigation will be required Generic Pro Tools Plug in Controls The standard Pro Tools plug in facilities are provided These have generic operation and are described in the Pro Tools documentation Automation The Band Gain settings the Level and the Range Selectors appear in the Plug In Automation screen and together with the Pro Tools bypass control may be automate...

Страница 19: ...s not guarantee the absence of output clipping Off On LEDs Channel 1 Channel 2 These LEDs indicate whether the channel is selected to process Range LEDs Channel 1 Channel 2 The three LEDs Low Mid and High indicate which range s is are selected for processing Gain LEDs Channel 1 Channel 2 The twelve Activity LEDs for each channel offer a visual indication of the activity in each of the six bands co...

Страница 20: ...wn in the list it is available for use on your system OS X users The following error message or similar indicates that perhaps because of a power failure or because the USB connection has been severed there is an error communicating with the DNS2000 processor that you have requested PC Users The following error message or similar indicates that perhaps because of a power failure or because the USB...

Страница 21: ...cted range You will use the Band Gain controls to control the amount of noise attenuation performed in each band adjusting them to suppress as much noise as possible without introducing unwanted artefacts into the desired signal Noise suppression occurs in a given band when the fader is below 0dB However there are occasions when you might wish to boost the signal in a given band and you can do thi...

Страница 22: ...ls to 0dB no processing occurs Adjust the Band Gain controls to suppress the noise You should always attempt to suppress the noise with the minimum of damage to the desired signal In all likelihood you will find that the leftmost Band Gain controls are pulled down significantly whereas the central and rightmost are close to 0dB This tells you that the problem does not lie in the upper frequencies ...

Страница 23: ...tain significant noise This is not unusual Let s assume that the greatest improvement occurs when you reduce the gain in bands 3 and 4 This suggests that the noise is concentrated in an approximate range of 200Hz to 1kHz You should now find the optimum positions for all six faders The greatest cuts will lie in bands 3 and 4 whereas bands 1 2 5 and 6 should remain as close to 0dB as possible to ens...

Страница 24: ...d optimise the Level control To determine the correct Level you should again follow the procedure described previously Third refine the Band Gain controls for optimum suppression As in the first tutorial example 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 Because ta...

Страница 25: ... rapidly than middle and lower frequencies Even bare rooms with hard walls include these soft materials they are the people who are speaking 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 if the Level is set cor...

Страница 26: ...upply 85 260VAC 50 60Hz Dimensions 1U rackmount 20cm depth Audio I O type Digital PCM Sample rates 44 1 48 kHz I O resolution 24 bits Data formats SPDIF or AES EBU Processor power 198MFLOPS Process resolution 40 bits Latency 10 samples ...

Страница 27: ...bridge 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 requirements of the following EC Council Directives on the approximation of the laws of the member states relating to 89 336 EEC Electromagnetic Compatibility Applicable standards EN 55103 1 1996 EN 55103 2 1996 73 23 EEC Low Voltage ...

Страница 28: ...section of its accompanying product manual for a period of one year from the date of supply to the Company s immediate customers 4 2 The Company will make good at its own expenses by repair or replacement any defect or failure that develops in the System within one year of supply to the Company s immediate customer 4 3 The Company shall have no liability to remedy any defect failure error or malfu...

Страница 29: ...one year write off period or b repair or replacement of those components of the System that do not meet the warranties contained within this Document The foregoing states the entire liability of the Company to the Licensee 10 CONSEQUENTIAL LOSS Even if the Company has been advised of the possibility of such damages and notwithstanding anything else contained herein the Company shall under no event...

Страница 30: ...dom t 44 1223 881771 e info cedaraudio com w www cedaraudio com Copyright CEDAR Audio Ltd 2011 CEDAR is a registered trademark of CEDAR Audio Ltd DNS One DNS1000 DNS1500 DNS2000 and DNS3000 are trademarks of CEDAR Audio Ltd E OE subject to revision at the Company s sole discretion ...

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