Miranda DAP-781i Manual To Installation And Operation Download

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DAP-781i

Guide to Installation and Operation

M767-9900-102

8-Channel Digital
Audio Processor
with Dolby E
option

Specifications may be subject to change

Printed in Canada

April 2007

DAP

-781i

Miranda
Technologies

Inc

3499

Douglas-B.-Floreani

St-Laurent, Québec, Canada H4S 1Y6

Tel. 514-333-1772

Fax.

514-333-9828

www.miranda.com

imaging

Series

Summary of Contents for DAP-781i

Page 1: ...ssor with Dolby E option Copyright 2007 Miranda Technologies Inc Specifications may be subject to change Printed in Canada April 2007 DAP 781i Miranda Technologies Inc 3499 Douglas B Floreani St Laurent Québec Canada H4S 1Y6 Tel 514 333 1772 Fax 514 333 9828 www miranda com imaging Series ...

Page 2: ... do so Refer all servicing to qualified service personnel Servicing should be done in a static free environment Electromagnetic Compatibility This equipment has been tested for verification of compliance with FCC Part 15 Subpart B class A requirements for Digital Devices This equipment complies with the requirements of EN 55022 Class A Electromagnetic Emissions EN 61000 3 2 3 3 Disturbance in Supp...

Page 3: ...panel 7 2 4 2 AES3 id 75 Ω rear panel 9 2 5 Applications 10 2 5 1 Synchronization 10 2 5 2 Remote analog controlled tracking delay 11 2 5 3 GPI Outputs 11 3 Operation 12 3 1 DAP 781i user interface 12 3 2 Configurations and adjustments 13 3 2 1 Adjustment 13 3 2 2 Switch configurations 13 3 3 Control 13 3 4 iControl Interface 14 3 4 1 Audio Processing 16 3 4 2 Audio Output 21 3 4 3 Audio Type 24 3...

Page 4: ...iControl graphic interface window 14 Figure 18 Audio Processing group 16 Figure 19 Audio Processing panel CH 1 4 sub tab 18 Figure 20 Audio Processing panel Fixed Delay sub tab 19 Figure 21 Audio Processing panel Config Tab 20 Figure 22 XVP801i and two DAP 781i Audio Processing Flow Diagram 21 Figure 23 Output Mixer Block Diagram 22 Figure 24 Audio Output panel CH1 2 tab 23 Figure 25 Audio Output ...

Page 5: ...ard s Two audio processing cards can be combined together to process a total of 16 audio channels The audio processors feature two distinct processing blocks Input and Output The input processing includes delay level adjustments and phase correction Delay components include a fixed delay of up to 2 seconds as well as a video tracking delay that will automatically track the varying delay introduced...

Page 6: ...OUTPUT PROCESS DIR SRC 16Ch METADATA UART 1 8 9 16 SEL 16 x LEVELS 8 x MIXERS 8 x TONE MUTE 16 Ch 48 x 16 SHUFFLER 16 x NSD 16 x DELAY LEVEL PHASE 8 Ch METADATA BYP Dolby Detect SEL 16 2 16 DOLBY E OPTION 8 Ch 8 Ch 4 x SWAP 8 Ch 16Ch AES OUT 1 AES OUT 2 AES OUT 3 AES OUT 4 AES IN 1 AES IN 2 AES IN 3 AES IN 4 EXT REF METADATA DOWNMIX AUX OUTPUT Figure 1 DAP 781i Functional Block Diagram ...

Page 7: ... module needs to be in place prior to the DAP 781i installation 3 Carefully place the DAP 781i between a set of card guides and gently push the card towards the rear of the frame until the card edge connector is secured to the back plane The card s edge connector having 96 pins it may be necessary to push lightly when connecting the two connectors Pull lightly on the card verifying that it does no...

Page 8: ... must be at least 15 rear modules installed To install a module follow these steps 1 Locate an empty compartment 2 Make sure that the rear panel corresponds to the card to install the Reference switch LK1 is used to select the 75 Ω reference source for the imaging module Selecting LOCAL LK1 position 2 3 drives the reference signal connected to the rear module to the imaging module However sliding ...

Page 9: ...y on the module verifying that it does not move 4 Replace the bar 5 Replace the front panel door Note When pairing the DAP 781i 8 Channel Audio Processor with an XVP 801i HD SD Universal Video Processor Cross Converter to provide the XVP with external AES audio inputs and outputs the ABUS cable supplied with the DAP 781i card must be used to connect the modules In a Symphonie frame up to two DAP 7...

Page 10: ...ociated with the XVP 801i module Find the proper label according to your rear module type 2 Apply the label to the connectors and press down until it rests onto the BNC connectors shoulder Figure 6 Example of label installation 2 3 2 Symphonie Frame To install the Symphonie label follow these steps while referring to Figure 7 1 On Symphonie s rear panel locate the appropriate connectors 2 Carefull...

Page 11: ...hing any component or any other element of the card make sure to reduce any static electricity on your person One way to do this is to touch a surface connected to ground or to wear a wrist strap attached to ground 2 When handling card hold it by the edges avoiding touching the components 2 4 1 AES3 110 Ω rear panel Figure 8 Quartet A110 or Symphonie R A110 rear panel AES IN GPI 26 pin HD female s...

Page 12: ...S3 High 5 23 GND GPI INPUT 1 15 GPI INPUT 2 6 24 GPI OUTPUT 3 GPI INPUT 3 16 GPI INPUT 4 7 25 GPI OUTPUT 4 GPI OUTPUT 1 17 GPI OUTPUT 2 8 26 GND GND 18 N C 9 Figure 10 AES IN GPI Pin assignment DELAY META RJ45 10 socket METADATA output DVP 101i tracking delay input 1 GND 2 N C 3 Factory reserved RS232 Tx Output 4 Factory reserved RS232 Rx Input 5 GND 6 DVP 101i tracking delay input HI 7 DVP 101i t...

Page 13: ... Symphonie R AX rear panel AES IN GPI 26 pin HD female socket for Cable adapter GPI 9 pin DSUB female socket GPI inputs outputs AES IN1 2 3 4 BNC jacks AES3 id digital audio inputs REF IN BNC jack Reference input AES OUT1 2 3 4 BNC jacks AES3 id digital audio outputs DELAY META RJ45 10 socket METADATA output DVP 101i tracking delay input GPI 9 pin D SUB socket GPI INPUT 1 1 6 GPI INPUT 2 GPI INPUT...

Page 14: ...ernal sync signal and AES samples is respected for any case except for the Video NTSC mode For Video PAL mode output samples are aligned with the start of the first line RA 110 rear panel The AES 110 Ω Sync input is located on AES Sub D socket The switch SW16 REF110 must be set on the LOZ position to properly terminate the line Other syncs are connected on BNC REF IN The switch SW15 REF75 must be ...

Page 15: ...ing Module Audio Processing Module VPD signal VPD signal Figure 14 Tracking signal The signal period corresponds to the maximum delay reserved by the main module T and the positive pulse width tproc corresponds to the required delay For a sudden variation DAP 781i integrates this modification within 15 sec for a variation of 40 ms tPROC MIN T period tPROC MAX tLOW tPROC Figure 15 Timing chart The ...

Page 16: ...SC FRONT VIEW Figure 16 DAP 781i user interface Status leds INPUT 1 To INPUT 4 Bi color Green AES signal detected Orange Test tone Mute Validity Bit Channel Status CRCC Error Red No Lock Parity or Coding error Overload Input Dolby decoder option on error REF Bi color Green Valid reference signal detected Orange All outputs referenced on AES Input n 1 Red Card on mode Free Run Front panel pushbutto...

Page 17: ... 3 Control The DAP 781i can be controlled in three different ways The card edge push buttons 4 character display and status LEDs can be used to move through a menu of parameters and to adjust parameter values Miranda s RCP 100 remote control panel can be used to access the same menu structure from a remote location Miranda s iControl system can be used to access the card s operating parameters fro...

Page 18: ... 781i card The iControl graphic interface window The basic window structure for the DAP 781i is shown in figure 3 1 The window identification line gives the card type DAP 781i and the card ID 129 in the example The card ID identifies this specific card to iControl which may have access to multiple cards of the same type The text in square brackets is the slot number where the card is installed the...

Page 19: ...ard configuration 6 On board Dolby E Decoder presence 2 AES 1 input status 7 Dolby Decoder Bitstream status 3 AES 2 input status 8 Reference status mouse over shows source 4 AES 3 input status 9 ABUS Multiple card Config Presence 5 AES 4 input status Move the mouse over an icon and a detailed status message appears below the icon If the mouse is not held over an icon the message area below the ico...

Page 20: ...8 Audio Processing group Specific behavior with non PCM audio Dolby E audio is supported in the DAP 781i During frame sync mode when input video and reference signals are not synchronized Dolby E frames may be skipped or repeated In addition for non PCM audio all level parameters gain and attenuation input swapping and phase inversion are overridden to prevent any modification of the audio data ...

Page 21: ...details below the indicator is green when a signal is present and yellow when a silence is detected according to the Threshold and Delay settings Describes the type of audio signal at the AES inputs The options are identified by name and color coded for easy visual identification PCM orange AC 3 Dolby Digital pink DOLBY E blue N PCM other non PCM yellow CH 1 4 CH 5 8 CH 1 4 E and CH 5 8 E tabs Eac...

Page 22: ... sub tab Fixed Delay sub tab Although the DAP 781i automatically matches audio and video throughput timing provision is made for the user to insert an audio delay offset from the nominal value in order to deal with problems such as lip sync errors and audio phase alignment in the incoming feed For each channel two sliders allow to adjust the delay The Coarse slider adjusts the delay in millisecond...

Page 23: ...GUIDE TO INSTALLATION AND OPERATION DAP 781i 19 Figure 20 Audio Processing panel Fixed Delay sub tab ...

Page 24: ...t to a specific value 72 66 60 54 48 dBFS The default value is 60 dBFS Delay The signal absence period can be adjusted from 3 to 255 seconds in preset steps 3 5 7 10 15 20 30 40 50 60 90 120 180 210 240 255 sec The default value is set to 15 seconds Channel Presence Alarm Reporting select which audio input channels to monitor for audio silences by checking their boxes This enables the signal prese...

Page 25: ...s Each of these tabs provides all necessary controls for the output mixers See figure 23 Operation Mode Off A SUM A B Mix This section allows the source of each output channel to be selected as a single channel or the sum or mix of two channels Off The output channel is muted A The output channel is the channel source ABUS Select and Channel selected in sub menu SOURCE A SUM A B The output channel...

Page 26: ...put Shuffle Mix CH 1 CH 2 Test Tone Gen CH 1 2 48 x 1 48 x 1 48 x 1 48 x 1 Mix A B Mix A B 48 x 1 48 x 1 48 x 1 48 x 1 Mix A B Mix A B 48 x 1 48 x 1 48 x 1 48 x 1 Mix A B Mix A B 48 x 1 48 x 1 48 x 1 48 x 1 Mix A B Mix A B CH 3 CH 4 CH 5 CH 6 CH 7 CH 8 CH 3 4 CH 5 6 CH 7 8 0 1 0 1 0 1 0 1 AES 1 Tone Enable AES 2 Tone Enable AES 3 Tone Enable AES 4 Tone Enable AES 1 AES 2 AES 3 AES 4 Figure 23 Outp...

Page 27: ...d audio from the video card V one of two DAP 781i audio cards A1 or A2 or one of two Dolby decoding modules E1 or E2 installed on the DAP 781i cards The Audio Bus is configured in the A BUS panel see Sect 3 4 6 Channel Channel 1 Channel 8 for A1 A2 and E1 E2 Channel 16 for V selects the channel to be used from the selected audio source Level dB 96 to 0 dB in 0 5 dB steps sets an attenuation level ...

Page 28: ...ard System tab The Embedded Channels Video section corresponds to the A BUS Video In channels originating from the demuxed audio channels from the video card These channels are available for the optional Dolby decoder input The Input Channels Slave 1 section shows the 8 channels originating from the output of the input processor block on this DAP 781i The DLBY Decoded Channels Slave 1 section show...

Page 29: ...ls originating from a second DAP 781i card on the A BUS if installed Remark Slave1 is shown if this card is slave 1 otherwise Slave2 will be shown if this card is Slave2 see section 3 4 7 The Output Channel Status section indicates the audio type found on this DAP 781i after each output mixer ...

Page 30: ...itstream Detection Mode dictates the action taken by the decoder for each type of input bitstream In Auto mode the decoder automatically recognizes and decodes PCM Dolby Digital or Dolby E inputs bitstreams If Dolby E is selected the decoder recognizes and decodes only this type of bitstream otherwise the decoder outputs are muted The same applies for the Dolby Digital selection If Mute is selecte...

Page 31: ...nnel output listening mode If EX mode is selected it will be activated only if the Dolby Surround EX Mode in the Dolby Digital tab Dolby Digital Status section is indicated as Surround EX Encoded If not the mode will internally default to Full mode The Pro Logic Decode Mode parameter enables Pro Logic decode processing for Dolby Digital and PCM bitstreams The Downmix configures the Dolby decoder s...

Page 32: ...tput channel assignments The Main Output sub section shows channel assignments related to the Program Configuration The Aux Output sub section shows how the auxiliary 2 channel output is downmixed if activated The Prg 1 to Prg 8 sub tabs indicates status information proper to each Dolby E program Coding Mode Bitstream Mode Dialnorm dialog normalization value RF Overmodulation Protection Line Mode ...

Page 33: ...n shows channel assignments related to the Program Configuration The Aux Output sub section shows how the auxiliary 2 channel output is downmixed if activated The Dolby Digital Status section indicates status information for the Dolby Digital bitstream Coding Mode Bitstream Mode Dialnorm value RF Overmodulation Protection Line Mode Profile RF Mode Profile Dolby Surround Mode Dolby Surround EX Mode...

Page 34: ...GUIDE TO INSTALLATION AND OPERATION 30 DAP 781i The PCM tab Figure 29 Dolby Decoder panel PCM tab The PCM tab section indicates the PCM output audio assignment at the output of the Dolby Decoder board ...

Page 35: ... tab The PCM Control tab section gives access to a subset of parameters included in the metadata generated when the Dolby decoder card s input is a PCM signal The Bitstream Mode Coding Mode Dialnorm value Line Mode Profile RF Mode Profile and Dolby Surround Mode can be specified according to the audio content ...

Page 36: ...DAP 781i The reference sources are placed by order of priority where Abus has the highest priority This means that many reference sources may be present and valid but the highest priority valid reference will be selected When a valid reference is not present the DAP 781i is in Free Run this is an error condition Figure 31 Reference input panel ...

Page 37: ...OPERATION DAP 781i 33 3 4 6 Test The Test panel allows the user to assign the EBU R49 test tone generator output to any of the 4 AES outputs The insertion of the test tone is done just before the AES output Figure 32 Test panel ...

Page 38: ...S is disabled it is not possible to detect other attached cards in the system Note 2 Master mode is only available when no video card is attached to the A BUS If another audio card is attached it must be configured as Slave 2 Video Card Presence V Monitors the presence of a video card in the A BUS configuration Audio Card Presence A2 Monitors the presence of a another audio card in the A BUS confi...

Page 39: ...GUIDE TO INSTALLATION AND OPERATION DAP 781i 35 Figure 33 A BUS panel ...

Page 40: ...etails click on this button to get information about the manufacturing process and card version Advanced Click on this button to get the Miranda Long ID of this DAP 781i The Miranda Long ID is the address of this card in the iControl network and is required by some devices to access this card Remote System Administration Click on this button to open the Joining Locators DAP 781i data entry box ...

Page 41: ...ttings Select any one of the four presets using the pull down list The name of the currently selected User Preset is shown on the name bar User1 User2 User3 or User4 Click Load to load the contents of the selected User Preset into the DAP 781i All parameter settings and values will be replaced by the contents of the selected User Preset Click Save to store the current parameter settings and values...

Page 42: ...will scroll downwards through the selection I 1 Depressing during an adjustment will increase the parameter value at faster rate Press to move up in the menu or to decrease the parameter value For example if you are currently at PHSE pressing will scroll through the selections LVL SWAP DLAY and STAT Depressing during an adjustment will decrease the parameter value at faster rate SEL Changes to a m...

Page 43: ... OV E 8 MU E 1 MU E 8 E External MUTE lockable CS USE PCM EMPH FMOD FREQ CMOD USER AUX WORD REF S ID D ID Each item will be followed by it s status OK TO12 TO78 MUT1 MUT8 OV1 OV8 OFF E L R E External L R channels 1 to 8 CHNB A B MIX CHNA SRCB A B MIX 96 0 1 0 0 5 0 dB MUTE A MIX LVLA A B 1 2 8 for A1 E1 A2 E2 up to 16 for V MIX LVLB A B 6 3 0 dB CH1 CH2 CH3 CH4 CH6 CH5 CH7 CH8 REF SWAP L chan 1 8 ...

Page 44: ...ion DMIX PSEL Dolby E OFF ON OUT DLYC 0 1 2 SSEL Dolby D frame PCM COMPLETE MAIN MAIN M E VISUALLY IMP HEARING IMP DIALOGUE COMMENTARY EMERGENCY VOICE OVER BMOD CMOD SRND DIAL OVER LINE DIS ENA 1 1 1 0 2 0 N I OFF ON 1 27 31 dBFS NONE FILM STAND FILM LIGHT MUSIC STAND MUSIC LIGHT SPEECH RF NONE FILM STAND FILM LIGHT MUSIC STAND MUSIC LIGHT SPEECH Figure 37 DAP 781i Menu 2 2 Main Menu STAT Status C...

Page 45: ... Mute audio function NSD THRS No Audio Signal Detection Threshold DLY No Audio Signal Detection Delay TONE CH12 to CH78 EBU Tone generator on Stereo Channel 1 2 to Channel 7 8 DOLB MODE Dolby Decoder Input mode Auto Dolby E Dolby Digital Mute IN SRC CHAN Dolby Decoder Input source Selection Audio or Video Card Channel DLYC Dolby Encoder or decoder delay compensation SSEL Dolby Digital Stream Selec...

Page 46: ... 8281 RETURN LOSS 25 dB 6 144 MHz REFERENCE UNBALANCED SIGNAL NTSC PAL AES3 id Word Clock LEVEL 0 2 to 2V IMPEDANCE 75 Ω RETURN LOSS 30 dB 6M 144 MHz REFERENCE UNBALANCED SIGNAL AES3 LEVEL 0 2 to 4V IMPEDANCE 110 Ω EQUALISATION 200m 600 with DRAKA ref KFB PBG 110 REMOTE ANALOG TRACKING DELAY SIGNAL Miranda video audio tracking analog signal IMPEDANCE 600 Ω OUTPUTS DIGITAL AES3 LEVEL 3 8 V pp IMPED...

Page 47: ...n 140 dB 20 to 10kHz 0 dBFS Group propagation delay ISR OSR PCM 2 65 ms 48 KHz DATA 0 4 ms 48 kHz Miscellaneous Max fixed delay 2400 ms Max tracking delay 320 ms 8 Video Frames EBU tone generator 1 kHz sine wave interrupted on left channel 250 ms 3 s EBU R49 GPI inputs current 1 5 mA GPI outputs sink current 40 mA Power 1 5W Power with Dolby Decoder Board 3 4W Dolby Decoder Metadata output RS 422 ...

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