DENSITÉ series AAP-1741 Four Channel Analog Audio Processor Guide to Installation and Operation M768-8200-100 6 Jun 2007 Miranda Technologies Inc. 3499 Douglas-B.-Floreani St-Laurent, Québec, Canada H4S 1Y6 Tel. 514-333-1772 Fax. 514-333-9828 www.miranda.com © 2007 Miranda Technologies Inc..
GUIDE TO INSTALLATION AND OPERATION Safety Compliance Information Safety Compliance This equipment complies with: - CSA C22.2 No. 60950-1-03 / Safety of Information Technology Equipment, Including Electrical Business Equipment. UL 60950-1 (1st Edition) / Safety of Information Technology Equipment, Including Electrical Business Equipment. st IEC 60950-1 (1 Edition) / Safety of Information Technology Equipment, Including Electrical Business Equipment.
GUIDE TO INSTALLATION AND OPERATION Table of Contents 1 AAP-1741 Four Channel Analog Audio Processor..................................................................1 1.1 1.2 1.3 1.4 1.5 2 Installation ..................................................................................................................................4 2.1 2.2 3 Unpacking ...........................................................................................................................................
GUIDE TO INSTALLATION AND OPERATION AAP-1741
GUIDE TO INSTALLATION AND OPERATION 1 AAP-1741 Four Channel Analog Audio Processor 1.1 Introduction The AAP-1741 is a four-channel high quality audio processor designed to work alone or with a wide range of video converters, frame synchronizer proc/amps of the Densité series. The card features two distinct processing blocks: Input and Output. The input processing includes Dolby detection, Tone generator, delay adjustments, level controls and phase correction.
GUIDE TO INSTALLATION AND OPERATION • Internal digital EBU tone generator • Absence signal delay and threshold adjustable /channel • Overload detection • All settings through frame control panel or remotely • Status LED and alarms remote reporting 1.3 • With a DEC-1xxx in Incoming feeds applications as A to D converter and audio processor. • Companion to an ENC-1xxx as an audio proc and a final D to A converter.
GUIDE TO INSTALLATION AND OPERATION D1 SELECT Card front-edge layout STATUS 1.
GUIDE TO INSTALLATION AND OPERATION 2 Installation 2.1 Unpacking Make sure you have ordered and received the AAP-1741 and its associated rear panel. If any of the following items are missing, contact your distributor or Miranda Technologies Inc. • AAP-1741 4-Channel Analog Audio Processor • One of the AAP-1741 Rear Panels (see figure) • An ABUS flat cable 2.2 Installation in the Densité frame The AAP-1741 must be mounted in a DENSITÉ frame.
GUIDE TO INSTALLATION AND OPERATION 3 Operation 3.1 Control options The AAP-1741 has two primary control interfaces: • • The local control panel attached to the Densité frame’s controller Remote control using Miranda’s iControl system These will be explained in detail in the following sections. 3.2 Local control using the Densité frame control panel Push the SELECT button on AAP-1741 card edge (see Section 1.5) to assign the local control panel to operate the AAP-1741.
GUIDE TO INSTALLATION AND OPERATION 3.2.1 Status LED The status monitor LED is located on the front card-edge of the AAP-1741, and is visible through the front access door of the DENSITÉ frame. This multi-color LED indicates module status by color, and by flashing/steady illumination, according to the chart. The chart also indicates fault reporting for this card on the DENSITÉ frame’s serial and GPI interfaces.
GUIDE TO INSTALLATION AND OPERATION 3.2.2 Menu for local control The AAP-1741 has operating parameters which may be adjusted locally at the controller card interface. After pressing the SELECT button on the AAP-1741 module, use the keys on the local control panel (described in the Controller card manual) to step through the displayed menu and adjust the parameters. The menus are shown below.
GUIDE TO INSTALLATION AND OPERATION UPMIX/DOWNMIX OPERATION MODE or OFF, UPMIX, DOWNMIX OPERATION MODE UPMIX SOURCE OFF, UPMIX, DOWNMIX LEFT INPUT CH1, CH2, …, CH16 RIGHT INPUT CH1, CH2, …, CH16 UPMIX TYPE SPEECH, MUSIC, MOVIE, CUSTOM EFFECT INTENSITY CUSTOM SETTINGS available if custom type is selected or CUT, -24, -23, ..., 0, ..., +5, +6 CENTER LEVEL CUT, -24, -23, ..., 0, ..., +5, +6 dB LFE LEVEL CUT, -24, -23, ..., 0, ..., +5, +6 dB SRND LEVEL CUT, -24, -23, ..., 0, ...
GUIDE TO INSTALLATION AND OPERATION CONFIGURE ALARMS CARD SYSTEM ALARM MODE OFF, ON (default depends on alarm) REFERENCE ALARM LEVEL YELLOW, RED, FLASH RED (default depends on alarm) ALARM REPORT NONE, GPI NSD PROC CH1 ... PROC CH4 PROC CH9 [EXT CH1/9] ... PROC CH 16 [EXT CH8/16] TEST OVERLOAD ANALOG IN1 (A/D) ... ANALOG IN4 (A/D) PROC CH1 ... PROC CH4 PROC CH9 [EXT CH1/9] ... PROC CH 16 [EXT CH8/16] OUT MIXER 1, IN A OUT MIXER 1, IN B ... OUT MIXER 4, IN A OUT MIXER 4, IN B ANALOG OUT 1L ...
GUIDE TO INSTALLATION AND OPERATION 3.3 Remote control using iControl The operation of the AAP-1741 may be controlled using Miranda’s iControl system. • • This manual describes the control panels associated with the AAP-1741 and their use. Please consult the iControl User’s Guide for information about setting up and operating iControl. In iControl Navigator or iControl Websites, double-click on the AAP-1741 icon to open the control panel.
GUIDE TO INSTALLATION AND OPERATION Status Icons At the top, to the left of the Miranda logo, are ten status icons that report various aspects of the card’s operation. Icon # Indicates appearance interpretation 1 Card control status Green if the card is controlled remotely Yellow when locally controlled 2-9 Input status Green if OK, Yellow if warning detected.
GUIDE TO INSTALLATION AND OPERATION 3.3.1 Audio Processing 3.3.1.1 Audio Processing - CH 1-4 to CH 13-16 tabs The channels 1 to 4 are the analog inputs. When a video card is present, eight extracted audio channels are available as Channel 9 to Channel 16, see ABUS Input Section (page 23). Each of these tabs controls the input processing: Levels, Fixed Delays and configuration for the absence signal detection for two pairs of channels; each channel is provided with a set of controls.
GUIDE TO INSTALLATION AND OPERATION Config sub-tab: this tab sets the card’s behaviour in the event of a loss or absence of audio signal. • A signal absence is declared when the signal level is lower than the signal threshold during the selected period. The threshold can be set through the pull-down box to –72, -66, -60, -54 or -48 dBFS, the default value is –60 dBFS.
GUIDE TO INSTALLATION AND OPERATION 3.3.2 Dynamic Processing This process is part of the input processor, refer to the block diagram. 3.3.2.1 CH 1 to CH 4 tabs: Each of these tabs controls the dynamic processing for one channel. The available functions are Limiter, Compressor, and Downward Expander. A Gain trim allows compensation of the loudness attenuation that follows compression.
GUIDE TO INSTALLATION AND OPERATION 3.3.2.2 CH 9 to CH 16 tabs: The functions are same as above but for channels 9 to 16.
GUIDE TO INSTALLATION AND OPERATION 3.3.3 Audio Output 3.3.3.1 Audio Output - CH 1-2 to CH 3-4 tabs: Each of these tabs controls the output processing for two output channels – source selectors, level controls and mixers for each output. A coloured box indicates the audio type for each output of the card. • Detected audio types can be PCM, AC3 (Dolby Digital), Dolby E or N-PCM (other non-PCM). The Operation Mode pulldown establishes the configuration of the controls for an output channel.
GUIDE TO INSTALLATION AND OPERATION Mix (see CH 3 in the figure on the right) Two sources are selected using the Source A and Source B ABUS Select and Channel pulldowns. The two sources are mixed, with the level of each source adjusted using its slider or data entry box. • • The ABUS select options are: oV selects one of the 16 channels from the video card. o A1 selects one of the 16 channels from an audio card.
GUIDE TO INSTALLATION AND OPERATION 3.3.3.2 Audio Output - Config tab: The Output 0 dBFS pulldown box sets the analog outputs conversion ratio: the default value for 0 dBFS will be +24 dBu, and it can be adjusted down to 0 dBu. 3.3.4 UP/DOWN MIX 3.3.4.1 UP/DOWN MIX – Config tab With the UP/DOWN MIX option enabled (see section 3.3.
GUIDE TO INSTALLATION AND OPERATION 3.3.4.2 UP/DOWN-MIX – UP-MIX tab: This feature is used to create from a stereo source a multi channel compatible audio signal with up to six channels: Left, Right, Center, Left Surround, Right Surround and the Low Frequency Effect. The selection of the stereo source is done with the two pull down boxes Left Source and Right Source. The pull down box Type offers three different standard mixes and a custom position.
GUIDE TO INSTALLATION AND OPERATION Type: • Auto the down-mix levels are taken from the Dolby metadata attached to the selected discrete channels. If no Dolby metadata is present, down-mix levels default to those currently set by the user in the L/R, Center, Surround and LFE pull-downs.
GUIDE TO INSTALLATION AND OPERATION 3.3.5 Audio Type This Windows indicates the audio type of each channel at the input of the card, and at the ABUS inputs and outputs. Detected audio types can be PCM, AC3 (Dolby Digital), Dolby E or NPCM (other non-PCM). Card Input Channels For Channels 1 to 4, which are the card analog inputs, the indicators display always PCM.
GUIDE TO INSTALLATION AND OPERATION 3.3.6 RALM tab: This Remote Audio Level Meters feature allows distant supervision of the audio levels present at the four outputs of the AAP-1741. 3.3.6.1 RALM Connections tab CH1&2, CH3&4 – each radio button turns the player ON or OFF for the pair of channels. Reset Counter – reset the overload counter to zero. The counters are located on top of each meter. See Overload Cursor in the Meter Ballistics section for more information.
GUIDE TO INSTALLATION AND OPERATION Color samples – the three samples show the currently-selected color for the upper, middle and lower zones of the meter. Overload Counter - The overload cursor appears on the meter as an arrowhead in the meter scale. The two pulldown boxes set the position of the overload cursor on the left and right meters. If the audio level on that channel goes above the cursor, the Overload Counter at the top of the meter is incremented.
GUIDE TO INSTALLATION AND OPERATION 3.3.8 Reference Input Reference – Desired: Use a radio button to select a reference signal for the AAP-1741. The reference sources are placed by order of priority where ABUS has the highest priority. The absence of the selected reference is an error condition. • Select Auto in the header bar to automatically select the highest-priority reference present and valid. Reference – Current: This section indicates the current reference used by the AAP-1741.
GUIDE TO INSTALLATION AND OPERATION 3.3.9 Rear Type This tab shows the type of the rear panel: single or dual width. AAP-1741-I-SRP: 4 analog inputs AAP-1741-O-SRP: 4 analog outputs AAP-1741-SRP: 2 analog inputs and 2 analog outputs AAP-1741-DRP: 4 analog inputs and 4 analog outputs 3.3.10 Factory / Presets Load Factory - The Factory profile is a read-only set of factory-selected values that can be used to return the AAP-1741 to a standard operating condition without affecting the User Presets.
GUIDE TO INSTALLATION AND OPERATION 3.3.10.1 Profiles Click the Profiles button at the bottom of the Factory/Presets panel to open a window allowing parameter settings to be copied from this AAP-1741 card to other AAP-1741 cards. • The Copy Profile From line shows the current AAP-1741.
GUIDE TO INSTALLATION AND OPERATION 3.3.11 Options Two options are available for the AAP-1741: • UP/DOWN MIXING option (AAP-1741-OPTMIX) • DYNAMIC PROCESSING option (AAP-1741OPT-DYN) Activate either option on the AAP-1741 card by entering the activation key into the Enter Key data box in its tab, and clicking the Enable Option button. • The current status of the option is shown in the status box below the Enter Key data box.
GUIDE TO INSTALLATION AND OPERATION GSM is a dynamic register of all the system alarms, and is also an alarm provider for external applications. 3.3.13 Info The Info panel provides the user information about the AAP--1741. The boxes titled Label, Short Label, Source ID and Comments are editable – the user can enter their own information.
GUIDE TO INSTALLATION AND OPERATION 4 Specifications Analog Inputs (4) Signal Input impedance Maximum level analog audio > 10 kΩ +24 dBu Analog Outputs (4) Signal Output impedance Max. Level Min. Load balanced analog audio 50 Ω +24 dBu 600 Ω Processing Sampling frequency Quantization 48 kHz 24 bits Analog to Analog Freq. response SNR THD+N Crosstalk Group delay ± 0.3 dB (20 Hz to 20 kHz) 114 dB (A weighted) -95 dB (20 Hz to 10 kHz) -100 dB (20 Hz to 20 kHz) 1.
