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Guide to Installation and Operation
Copyright 2007 Miranda Technologies Inc.
Specifications may be subject to change
St-Laurent, Québec, Canada H4S 1Y6
imaging Series
DAP-781i
M767-9900-102
Printed in Canada
April 2007
Miranda
Technologies Inc.
3499 Douglas-B.-Floreani
Tel. 514-333-1772
Fax. 514-333-9828
www.miranda.com
8-Channel Digital
Audio Processor
with Dolby E
option
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Table of Contents
Related Manuals for Miranda DAP-781i
Summary of Contents for Miranda DAP-781i
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Page 1: Guide To Installation And Operation
8-Channel Digital DAP-781i Audio Processor Guide to Installation and Operation with Dolby E M767-9900-102 option Copyright 2007 Miranda Technologies Inc. Specifications may be subject to change Printed in Canada April 2007 Miranda Technologies Inc. 3499 Douglas-B.-Floreani St-Laurent, Québec, Canada H4S 1Y6 Tel. - Page 2 EN 61000-3-2 & -3-3, Disturbance in Supply Systems EN 61000-4-2, -3, -4, -5, -6, -8 & -11 Electromagnetic Immunity How to contact us: For technical assistance, please contact the Miranda Technical support centre nearest you: Europe, Middle East, Americas Asia...
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Page 3: Table Of Contents
2.5.1 Synchronization........................10 2.5.2 Remote analog controlled tracking delay................11 2.5.3 GPI Outputs........................... 11 Operation............................12 DAP-781i user interface ....................... 12 Configurations and adjustments ....................13 3.2.1 Adjustment ..........................13 3.2.2 Switch configurations ......................13 Control............................13 iControl Interface .......................... 14 3.4.1... - Page 4 Table of Figures Figure 1 : DAP-781i Functional Block Diagram ....................2 Figure 2 : Installing the DAP-781i and XVP-801i in a Quartet 2 housing frame ..........3 Figure 3 : Rear panel R-AX..........................4 Figure 4 : Rear panel R-A110 ..........................4 Figure 6 : Example of label installation......................
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Page 5: General
1.1 Introduction The DAP-781i is a high quality, 24 bit digital audio processor that can process up to 8 discrete channels of audio. Its I/O consists of 4 AES inputs and 4 AES outputs. The DAP-781i can be used as a stand-alone audio processor for discrete audio signals or can be combined with a wide range of digital frame synchronizer/proc amps, upconverters, cross converters, and the XVP-801i Cross / Up / Down converter. -
Page 6: Block Diagram
BYP. PHASE AES IN 3 AES OUT 3 DIR + Dolby 16 x Detect AES IN 4 AES OUT 4 SEL. DIR + FPGA 16->2 DOLBY E OPTION DAP-781i µ Controller UART DAP-781i Functional Block Diagram Figure 1 : DAP-781i... -
Page 7: Installation
DAP-781i card must be used to connect the 2 modules. When using a Quartet 2 housing frame, only one DAP-781i card may be used. The XVP-801i must be installed in the top slot and the DAP-781i in the lower slot (figure below) in either side of the frame. Use the ABUS cable supplied with the audio card to connect the 2 modules. -
Page 8: Symphonie Housing Frame
It may require a light pressure to compress the EMI gaskets on. Using a flat edge screwdriver, secure the top and bottom screws to the frame. Figure 3 : Rear panel R-AX Figure 4 : Rear panel R-A110 DAP-781i... - Page 9 DAP-781i card must be used to connect the modules. In a Symphonie frame, up to two DAP-781i cards may be used. The XVP-801i must always be installed to the left of the DAP cards (figure 5 below). Use the provided ABUS cable to connect the cards.
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Page 10: Rear Panel Label
2.3 Rear panel label 2.3.1 Quartet frame Two connector labels have been shipped with your DAP-781i. One label is to be installed on the Quartet frame rear panel in order to identify the module’s external connectors. To install the label, follow these steps Locate the rear panel connectors associated with the XVP-801i module. -
Page 11: Electrical Installation
GUIDE TO INSTALLATION AND OPERATION 2.4 Electrical installation When connecting the DAP-781i to external equipment, make sure that all digital connections are point-to-point. Refer to the figure below and to the following descriptions for a complete DAP-781i installation. This equipment is conform to the CEE 89 / 336 directive and operation is subject to the following two conditions: 1- This equipment may not cause harmful interference according to EN 50081-1 rules. -
Page 12: Figure 10 : Aes In / Gpi Pin Assignment
DELAY / META (RJ45-10 socket): METADATA output, DVP-101i tracking delay input Factory reserved (RS232 Tx Output) Factory reserved (RS232 Rx Input) DVP-101i tracking delay input (HI) DVP-101i tracking delay input (LO) RS422 METADATA Output (HI) RS422 METADATA Output (LO) Figure 11 : DELAY / META pin assignment DAP-781i... -
Page 13: Aes3-Id 75 Ω Rear Panel
GPI (9 pin D-SUB socket) GPI INPUT 1 GPI INPUT 2 GPI INPUT 3 GPI INPUT 4 GPI OUTPUT 1 GPI OUTPUT 2 GPI OUTPUT 3 GPI OUTPUT 4 Figure 13 : GPI Pin Assignment DAP-781i | 9... -
Page 14: Applications
When used in a Symphonie frame, the module’s 75 Ω r eference input can be connected to the global reference signal (video or Word Clock only) instead of the signal on the REF IN connector by setting switch LK1 to position 1-2 (GLOBAL) on the rear panel. DAP-781i... -
Page 15: Remote Analog Controlled Tracking Delay
For compatibility with previous video processors, like the DVP-101i and ASD-231i, the DAP-781i has an analog tracking delay input on the rear RJ45 jack. An ABUS connection at the front of the DAP-781i overrides this input. The module can delay the signal up to 2.73 sec (@48 kHz). A part (320 ms for 8 video frames) of the maximum delay is reserved for the tracking delay. -
Page 16: Operation
GUIDE TO INSTALLATION AND OPERATION Operation 3.1 DAP-781i user interface The Figure below illustrates the DAP-781i user interface situated at the front end of the card. For information on these controls, refer to the rest of this section. FRONT VIEW... -
Page 17: Configurations And Adjustments
As the graphical interface is the most intuitive and easy-to-use method, it will be used as the basis for describing the functionality of the DAP-781i is section 3.4. A full description of how to use the card edge controls and the RCP-100 to access the menus is given in sections 3.5 and 3.6. -
Page 18: Icontrol Interface
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;... - Page 19 Ref Status – green if OK, red if reference is absent. ABUS Multiple Card Configuration – green if configuration and card setup are OK, red if there is a mismatch between the configuration and actual card setup. The DAP-781i displays nine icons, which monitor these functions: Icon Function monitored...
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Page 20: Audio Processing
Figure 18 : 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 Level (slider and input box): Sets the audio gain from -96 to 12 dB in 0.5 dB steps. For non-PCM audio, the level value is overridden to 0 dB. Mute (speaker button): Mutes the selected audio channel Phase Invert: When checked, inverts the selected audio channel phase. This parameter is not available for non-PCM audio. DAP-781i | 17...
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Page 22: Figure 19 : Audio Processing Panel - Ch 1-4 Sub-Tab
Figure 19 : Audio Processing panel – CH 1-4 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. -
Page 23: Figure 20 : Audio Processing Panel - Fixed Delay Sub-Tab
GUIDE TO INSTALLATION AND OPERATION Figure 20 : Audio Processing panel - Fixed Delay sub-tab DAP-781i | 19... -
Page 24: Figure 21 : Audio Processing Panel - Config Tab
This enables the signal presence indicators to turn yellow when there is no signal present which activates the audio silence alarm. Otherwise, when checkboxes are not checked, the signal presence indicators turn grey. Audio Processing panel - Config Tab Figure 21 : DAP-781i... -
Page 25: Audio Output
XVP-801i HD/SD Universal Video Processor/Cross Converter and another DAP-781i for additional audio channel inputs to the mixers and for audio embedding and discrete AES outputs. The Audio Bus transports audio channels to and from the cards in the system. -
Page 26: Figure 23 : Output Mixer Block Diagram
48 x 1 AES 3 Tone Enable 48 x 1 CH 7 48 x 1 CH 7&8 48 x 1 AES 4 CH 8 48 x 1 AES 4 Tone Enable Test Tone Figure 23 : Output Mixer Block Diagram DAP-781i... -
Page 27: Figure 24 : Audio Output Panel - Ch1-2 Tab
ABUS Select: V, A1, A2, E1, E2: selects the source for this channel from either the embedded 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. -
Page 28: Audio Type
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 shows the 8 decoded channels originating from the optional Dolby decoder on this DAP-781i. These channels will always be of type PCM. DAP-781i... - Page 29 GUIDE TO INSTALLATION AND OPERATION The channels marked (Slave 2) refer to channels 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 –...
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Page 30: Dolby Decoder
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 selected, all outputs are muted for any type of input. Mute mode disables the Dolby decoder. DAP-781i... - Page 31 The Input Selection determines the Dolby decoder input channel pair. The Source can either be AES In for the DAP-781i AES inputs or V for Audio Bus In channels pairs from the video card, if present. The Delay Compensation tab allows frame adjustment of the audio vs. video delay, the default value is one frame for the Dolby Decoder board.
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Page 32: Figure 27 : Dolby Decoder Panel - Dolby E Tab
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 Profile, RF Mode Profile, Dolby Surround Mode, Dolby Surround EX Mode and Preferred Stereo Downmix Mode. The amount of programs depends on the Program Configuration. DAP-781i... -
Page 33: Figure 28 : Dolby Decoder Panel - Dolby Digital Tab
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 and Preferred Stereo Downmix Mode. DAP-781i | 29... -
Page 34: Figure 29 : Dolby Decoder Panel - Pcm Tab
GUIDE TO INSTALLATION AND OPERATION 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. DAP-781i... -
Page 35: Figure 30 : Dolby Decoder Panel - Pcm Control 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. DAP-781i | 31... -
Page 36: Reference Input
GUIDE TO INSTALLATION AND OPERATION 3.4.5 Reference Input The Reference Source section indicates the current reference used by the 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. -
Page 37: 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 DAP-781i | 33... -
Page 38: A-Bus
Dolby E Decoder Presence on Other card (E2): Monitors whether a Dolby E decoder is present on the other DAP-781i card, if attached (E2 is shown if this card is Slave1, otherwise E1 will be shown if this card is Slave2). -
Page 39: Figure 33 : A-Bus Panel
GUIDE TO INSTALLATION AND OPERATION Figure 33 : A-BUS panel DAP-781i | 35... -
Page 40: Info
Details…: 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. -
Page 41: Factory
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. -
Page 42: Menu Introduction
Most DAP-781i parameters can be accessed and changed via an easy-to-use menu, accessible using the push buttons and display on the front card edge (see section 3.1). The flow chart below outlines the entire DAP-781i menu path. Each menu item is described in this section. The following points should be remembered when accessing the menu. -
Page 43: Figure 36 : Dap-781I Menu 1/2
OFF, ON THRS -72, -66, -60, -54, -48 dBFS 3, 5, 7, 10, 15, 20, 30, 40, 50, 60, 90, 120, 180, 210, 240, 255 TONE CH12 OFF, EBU CH34 CH56 CH78 Figure 36 : DAP-781i Menu 1/2 DAP-781i | 39... -
Page 44: Figure 37 : Dap-781I Menu 2/2
OFF, MSTR, SLV1, SLV2 VERS Vxyz (x: major, y: minor, z: version) FPGA Vxyz (x: major, y: minor, z: version) FACT NO, YES Figure 37 : DAP-781i Menu 2/2 Main Menu STAT : Status CONF : User Configuration PROC : Input Processor OMIX... - Page 45 ALRM ABUS, CHAN : Alarm Activation on Stereo Channel 1&2 to 7&8 or on ABUS link ABUS : ABUS Mode configuration (Off, Master1, Slave1, Slave2) VERS : UC and FPGA Firmware Version FACT : Load Factory configuration DAP-781i | 41...
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Page 46: Technical Specifications
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 IMPEDANCE: ..................110 Ω balanced JITTER:.............. - Page 47 (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 115200 bauds DAP-781i | 43...
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