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Audio-overs
Video/audio monitoring
Machine control
Automation control
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Selecting the transition type and rate
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Table of Contents
Related Manuals for pro bel TX 520
Summary of Contents for pro bel TX 520
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Page 1: Table Of Contents
Typographical conventions Abbreviations Layout of the TX 520 Source selection busses Source names Video/audio breakaway The unity gain buttons The plasma display Downstream keyers Optional DVE Audio-overs 2.10 Video/audio monitoring 2.11 Machine control 2.12 Automation control 2.13 Bypass switcher control... - Page 2 Taking a transition to air Taking married video/audio with a pre-rolled machine Taking married video/audio with a manually rolled machine Leading in audio before video Manually holding an automated transition Manually taking an automated transition Switching on-air to black/silence Manually taking a DSK to air Taking a DSK from air Setting a DSK to follow the next transition Selecting a DVE sequence...
- Page 3 Taking an audio-over from air Setting the audio-over to follow the next transition Monitoring sources via AUX1 Monitoring sources via AUX2 Monitoring an audio source Monitoring in multi-level environment Controlling a dedicated machine Controlling a routed machine 11.1 Using the bypass switcher panel 12.1 Stop watch and timer modes 12.2...
- Page 4 15.1 Setting up the audio gain for a source 15.2 Temporarily restoring unity gain 16.1 Viewing the current audio routing 16.2 Editing the audio routing 17.1 Selecting multiple channels 17.2 Controlling multiple channels...
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Page 5: N T R O D U C T I O N
Certain conventions are used in this guide to indicate different types of information. Names of buttons and controls on the TX 520 are shown in this guide in bold capitals, within brackets, like this : <VIDEO ONLY> . -
Page 6: Abbreviations
Within this document the following abbreviations and acronyms are used: Preset Programme Real Time Clock Time Of Day Time Code Volume Meter Peak Program Meter dBFS Decibels at Full Scale Decibels Auxiliary Downstream Keyer Fade to Black Personal Identification Number... -
Page 7: O T X
· Defining and making audio-overs (see chapter 6). · Monitoring audio and video sources (see chapters 7 and 8). · Correcting audio levels (see chapter 15). The TX 520 can also be set up to support multi-level audio, allowing editing of the audio routing and selection of the audio level to monitor on the audio monitoring speakers (see chapter 16). -
Page 8: Layout Of The Tx 520
MONITOR 2 MACHINE CONTROL AUTOMATION AUX SELECT OVER OVER The above diagram of the TX 520, shows the buttons and controls that are grouped for various operations. The numbers in the diagram correspond to those included in the following explanations. -
Page 9: Source Selection Busses
(1) bypass switcher control and (13) buttons for selecting the audio level to monitor (if the TX 520 is configured for multi-level audio), (14) the buttons for multi-channel control (if connected), (2) the plasma display, and (3) audio monitoring control. -
Page 10: Source Names
The white keys (AUX) provide access to sources for either of two auxiliary busses (AUX1 or AUX2), depending on which AUX SELECT buttons are lit. The auxiliary busses are used for monitoring sources (see chapter 7). The red keys (PGM) are the selection buttons for programme, the sources that may be taken to air. -
Page 11: Video/Audio Breakaway
14). The plasma display, in the middle of the upper console, is used to: · Monitor audio levels of the source selection busses. · Define audio, DSK, wipe and DVE setups. · Configure the TX 520 for the site. - Page 12 The home screen (see chapter 12) is the top level screen. It shows the dual channel audio levels for the busses, a stop watch or timer, and station clock. It is possible to return directly to the home screen (regardless of the screen currently displayed) by using the <HOME>...
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Page 13: Optional Dve
All DSK's are fully linear and have separate control of clip and gain, as set up using the plasma display. An optional DVE is available for the TX 520 (see chapter 5). This provides up to 24 selectable DVE moves for on screen squeeze effects. - Page 14 Three buttons are used to elect the machine to be operated. The way this works depends on how the TX 520 is installed. The buttons can be dedicated to three directly connected machines or they can be connected to an external router,...
- Page 15 System), the following features of the TX 520 can be controlled automatically: PST source selection. Transition type and rate. DSK and audio-over. The TX 520 provides control of an external 8 x 1 bypass switcher independent from the panel and the control system.
- Page 16 This chapter describes how to set up the next transition manually and take it to air. If the TX 520 is connected to a presentation automation system, for example, Pro- Bel’s Compass system, the programme can be setup and taken to air automatically.
- Page 17 It is preferred practice to set up the transition on the preset (PST) bus. The selection can be either select married video/audio from the same source (see Step1 below), or video and audio from different sources (see Steps 2 and 3). At the bottom left of the lower console, the <VIDEO ONLY>...
- Page 18 The newly selected source button is lit at halfbrightness indicating audio only selection. The original source button is lit at full brightness, indicating video only. Note: The <AUDIO ONLY> and <VIDEO ONLY> buttons can be configured to be either manually or automatically cancelled after selection. Refer to the technical manual for details.
- Page 19 <WIPE> Use the currently set up wipe pattern, direction and softness. The current wipe pattern is shown in the top right of the home screen on the plasma display (see chapter 13). The audio will perform a mix if < WIPE > is pressed for the selected transition. Note: If a fade transition is selected (either <V FADE>, <TAKE/FADE UP>...
- Page 20 Used to start a machine (for example, a VTR) and take married video/audio to air after a pre-configured delay. The pre-roll countdown timer displays above this button. When the switcher is automated by Pro-Bel automation, processing the <PRE- ROLL & TAKE> button causes the next event to take.
- Page 21 Used for manually rolling a machine, for example, a VTR, independently of actually taking the transition to air. When the switcher is automated by Pro-Bel automation, processing the <PRE- ROLL & TAKE> button causes the next event to take.. <ABORT>...
- Page 22 Used to manually suspend a transition set by an automation system until the <HOLD> button is pressed again to release it. For example, if the current on-air programme overruns its scheduled duration it may be necessary to manually control when the next transition will be made. Select the required source to the PST bus.To take the transition in one step, including pre-rolling the machine, press <PRE-ROLL &...
- Page 23 Select the required source to the PST bus. Roll the machine manually by pressing <ROLL>. The machine is started, as shown on the PST monitor. Press <TAKE> to take the married video/audio to air. The red PGM source buttons light, corresponding to the sources pre- selected on PST.
- Page 24 Select the required source to the PST bus. If applicable, roll the machine (for example, a VTR) manually by pressing <ROLL>. The machine is started, as shown on the PST monitor. Press <LEAD AUDIO> to bring in the new audio source over the current video and audio.
- Page 25 If necessary, a transition that is scheduled and controlled by an automated presentation system can be delayed by pressing <HOLD>. The < HOLD> button lights. The on-air sources do not change (that is, the next transition is not taken) until < HOLD> is pressed again to release it. If necessary, a transition that is scheduled and controlled by an automated presentation system can be taken to air early by pressing <PRE-ROLL &...
- Page 26 The TX 520 transmission on-air can be replaced with black/silence at any time by pressing a single key. The black can be positioned before or after DSK 2 and the fade rate can be configured to be between 0 (cut) and 99 frames. Refer to the technical manual.
- Page 27 A downstream keyer (DSK) enables images such as captions and logos to be displayed on top of the programme. The TX 520 provides two DSKs. The DSK controls are located at the bottom right of the lower console. One or both DSKs can be taken to air at any time manually if a transition is not in progress.
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Page 28: Taking A Dsk From Air
One or both DSKs can be taken from air at any time manually if a transition is not in progress. The method of taking a DSK from air is independent of the way it was taken to air. If the <CUT> button is not lit, the DSK is already off-air. If the <FOLLOW>... - Page 29 Either or both DSKs can be set to activate at the time of the next video PST/PGM video or DVE transition. If a DSK has been manually taken to air it, it can be ‘followed’ off. If it has been ‘followed’ on, it can be manually taken off. The follow function cancels after it has been taken off air.
- Page 30 The DVE screen on the plasma display permits selection of the next DVE sequence to be controlled from the panel. Any changes which may occur from the main control system to the DVE configuration are actively updated on the page when it is visible.
- Page 31 Pressing the <DVE SEQ n> push button selects the corresponding sequence (numbered ‘n’) from the DVE. The selected sequence button remains highlighted. It is not possible to change a sequence once activated either on air or previewing. If either the <DVE> or <PRVW SEQ>...
- Page 32 To select the sequence to take to air refer to section 9.1. Press the red <DVE> button. The selected DVE move will be activated on air. The <DVE> button lights up as the DVE move is in action. The <DVE> button flashes when the move is complete until the move is taken off air.
- Page 33 Four audio-overs are provided on the TX 520 enabling sound to be added over the on air programme audio. The audio-over control section is in the lower right hand section of the panel. An audio-over can be cut or faded to and from air or can be set to follow the next audio or DVE transition.
- Page 34 <OVER rate> is used to select the fade rate for the over by pressing the button. The rate toggles between slow, medium and fast. The audio setup screen allows the over fade rate to be set. From the home screen, press the <AUDIO SETUP> button (see chapter 12). The audio setup screen is displayed.
- Page 35 Caution: If the <CUT> button is lit, audio-over is on-air and the audio- over level controls will affect the programme audio. Select an audio-over source by pressing one of the four white <OVER> buttons. The selected over button will light. AUX SELECT OVER OVER...
- Page 36 It is possible to pre-listen to an audio-over before taking it to air. Select <PST> to the loudspeakers ( see chapter 8). MONITOR 1 MONITOR 2 Press and hold down the required audio-over source. AUX SELECT OVER OVER The PST audio monitor will switch to a mix of the audio-over and the source selected on the PST bus.
- Page 37 It is possible to take an audio-over to air at any time, including when a transition is in progress. The over can be either cut or faded to air or set to follow the next audio or DVE transition, depending on which control is used. Press the <CUT>...
- Page 38 It is possible to take an audio-over from air at any time, including when a transition is in progress. If the <CUT> button is not lit, the audio-over is already off-air. Press the <CUT> or <FADE> button in the audio-over control section. The <CUT>...
- Page 39 An audio-over can be set to follow the next audio PST/PGM transition or DVE move. If an audio-over has been manually taken to air, it can be ‘followed’ off. If it has been ‘followed’ on, it can be manually taken off. The follow function cancels after it has been taken off air.
- Page 40 The TX 520 provides two auxiliary busses for monitoring sources without affecting the on-air sources or those that are pre-selected for the next transition. Sources for the auxiliary busses are selected from the top row of white buttons on the source selection panel in the lower console. The AUX SELECT panel buttons (on the right) let you choose whether sources selected apply to the AUX1 or AUX2 bus.
- Page 41 To monitor married sources on the AUX1 bus, ensure that both the <AUX1 VIDEO> and <AUX1 AUDIO> buttons are lit and then press the white button in the AUX row for the required source. The source button is lit at full brightness and the <AUX1 VIDEO> and <AUX1 AUDIO>...
- Page 42 Only married sources can be monitored via AUX2. To monitor married sources on the AUX2 bus, press the <AUX2> button in the AUX SELECT panel then press the white button in the AUX row for the required source. The source button is lit at full brightness and the <AUX2> button is lit. AUX SELECT OVER OVER...
- Page 43 PGM, PST, AUX1 and one off- air/external source. In addition, the TX 520 provides two dual channel audio monitor outputs for use at any time for monitoring a source selected on a bus or listening to the off- air/external input.
- Page 44 To monitor an audio source using either MONITOR 1 or MONITOR 2: Press either <PGM>, <PST>, <AUX1> or <AUX2> for monitoring a source, or press <TX> for return monitoring. If the audio for a different source is to be monitored on the selected bus, press a different source button.
- Page 45 The centre row of push buttons on the left in the upper console allow the selection of the audio level to be heard on the speaker outputs. To select the level for monitoring, press one of the first four buttons to select the required audio level to monitor 1or press one of the last four buttons to select the required audio level to monitor 2.
- Page 46 The TX 520 has a set of buttons for controlling devices, such as VTRs, directly from its console. The machine control panel can be used to preview material before it is taken to air. The machine control panel is located in the top left row on the lower console.
- Page 47 If the TX 520 is directly connected to devices, the machine to be controlled can be selected by pressing one button. Press either <1>, <2>, or <3> on the machine control panel to select the device to be controlled The button lights up to show which machine you are controlling.
- Page 48 If the devices are connected via a router, to select the machine first select an input bus. Then select the source on that bus corresponding to the machine to be controlled Select the input bus to control by pressing the <PST>, <AUX1> or <AUX2> button on the machine control panel.
- Page 49 The TX 520 is designed to facilitate simple integration with a wide range of station automation systems, like Pro-Bel’s Compass System. A single button on the TX 520 controls connection to the automation system. The automation control section is located in the top row of the lower providing full manual intervention with the automation system.
- Page 50 To turn on automation control of TX 520 functions, press the <AUTO ON> button in the automation panel. The <AUTO ON> button lights up, the automation system is now active. AUTOMATION To turn off automation control of TX 520 functions, press the <AUTO ON>...
- Page 51 It is recommended that the TX 520 is connected to an external bypass switcher so that some sources have alternative routes to air that bypass the TX 520. The bypass switcher panel is located in the upper console on the left.
- Page 52 Press a button on the bypass switcher panel to take that source to air immediately. If the old source was the TX 520 output, the TX 520 is switched from air, so any current audio settings, DSKs and audio-over on the TX 520 are no longer transmitted.
- Page 53 The home page is the default graphic plasma display screen for the system. The display consists of four stereo meters, real time clock, stop watch facilities and push buttons to select various setup screens. The diagram illustrates a multi-level monitoring screen display. CHANNEL1 A1 CHANNEL2 A2 DOWN...
- Page 55 In a single level system the page is titled with the first two channel names specified, for example ‘CHANNEL1 CHANNEL2’. Whilst in a multi-level system the page is titled with the page (level) number, channel names, the channels routed and the other page (level) numbers where these channels are also routed.
- Page 56 Four stereo meters are displayed for the PGM, PST, AUX1 and TX audio channels. Double markers on the sides of each bar indicate the line-up level for the meter. In stop watch mode the time of day display (HH:MM:SS) is provided in 24 hour format, as illustrated.
- Page 57 If stop watch mode is selected then the current count is displayed along with three push button controls for the stop watch, as illustrated. The stop watch can count up or down (from a preset value) and can be reset. The count down preset value is selected using Shaft Encoder one to set the MMM value.
- Page 58 In segment mode the timer value is displayed along with four push button controls. The segment mode timer counts independently to the stop watch and the remaining count and is always active, even if timer mode is never selected. It is always automatically started at the start of each transition and can be manually started and stopped once counting.
- Page 59 · The <WIPE PATTERN> button showing the currently selected wipe pattern graphic allows entry to the wipe pattern selection page. When control is by an automation system (e.g. Pro-Bel Compass) the displayed wipe pattern changes to reflect the currently selected setting by the automation system.
- Page 60 · <DSK> allows entry to the down stream keyer (DSK) setup page, from which both of the down stream keyers can be adjusted. · <AUDIO SETUP> allows entry to the audio gain setup page, from which levels to be adjusted for each of the audio sources, and the over fade rate can be set.
- Page 61 · wipe softness = 0% · wipe softness = OFF · wipe direction = normal (forward) When control is by an automation system (e.g. Pro-Bel Compass) the displayed wipe pattern changes to reflect the currently selected setting by the automation system.
- Page 62 If OFF is selected the wipe setup is complete. Press <HOME> to display the home screen. To change the amount of softness, turn the fourth shaft encoder clockwise to increase softness, or anti-clockwise to decrease softness. Softness of 0% has the same effect as turning the softness state to OFF. Press <HOME>...
- Page 63 The individual setup of the DSKs may be modified using the DSK page(s) on the plasma display. To access this from the home page, press the <DSK> button. The screen will display the current settings for each DSK. Percentage bars and buttons for setting DSK1 are shown in the left half of the screen.
- Page 64 The <SELF/EXT> push buttons toggle between self or external keying. Note: ‘EXT’ gives better quality therefore it is best to use this whenever possible. The DSK rate selection is providedby pressing one of the three push buttons labelled <SLOW>, <MED> or <FAST>. The value displayed is the current transition rate, in frames, set by the transition rates screen (refer to the technical manual).
- Page 65 If the DSK is to be controlled manually, press either <SLOW>, <MED>, or <FAST> to select the DSK fade rate. If the <FOLLOW> function has been selected on the panel (see chapter 4), the TX 520 ignores the DSK fade rate and uses the main transition rate.
- Page 66 If the TX 520 is set up for multi-level audio, similar adjustments can be made for each level. The top line of the screen displays the current page number (i.e., level) on the left, the channel and input source names above the audio meters, and the number of any other levels to which the channels are also routed.
- Page 67 CHANNEL1 A1 CHANNEL2 A2 AUX1 MONO MARRY SPLIT UNITY GAIN AUX1 OVER PHASE L +8.03 SLOW REV B R +5.83 BLCK Buttons on the audio (gain) setup screen include: <PGM>, <AUX1/PST> - used to select the bus to be adjusted <MARRY/SPLIT>...
- Page 68 When using the audio (gain) setup screen, select a bus by pressing one of the bus select buttons to the left of the screen. To select a source on that bus, press the source button in that bus row on the lower console. From the home screen, press the <AUDIO SETUP>...
- Page 69 To change the stereo/mono selection for the source, press <ST> (stereo), <MONO> (mono), <A>, or <B>. A routes audio channel A to both outputs. B routes audio channel B to both outputs. If <ST> for stereo or <MONO> for mono has been selected, <PHASE REV B > can also be added to reverse the phase of audio channel B.
- Page 70 If the TX 520 system has been set up for multi-level audio, the <AUDIO RTG> button appears on the home screen for displaying screens which allow viewing and editing of the audio routing. The view audio routing screen is accessed from the home screen (see chapter 12) by pressing the <AUDIO RTG>...
- Page 71 The view audio routing screen is displayed, with the AUX1 bus selected. The name of the currently selected source is shown in a box beneath the routing diagram. To view audio routing for a source on a different bus, press either <PST> or <PGM>, as required.
- Page 72 The edit audio routing screen is accessed from the view audio routing screen (see section 16.1) by pressing the <EDIT> button. It displays the following: · Bus selection button labels. · A diagram of the current routing for the selected bus and source. Inputs (tracks), listed on the left, are routed to outputs (channels), shown on the right.
- Page 73 From the view audio routing screen, press the <EDIT> button (see section 15.1). The edit audio routing screen is displayed with the AUX1 bus selected. The name of the currently selected source is shown in a box beneath the routing diagram. To view and change the audio routing for a different bus, press either <PST>...
- Page 74 The TX 520 has the ability to control up to six channels if required. This is achieved from one panel using the bottom row of buttons in the top left of the panel. BYPASS SWITCHER The <ASSIGN> button on the left is used to enable/disable channel selection buttons 1 to 6.
- Page 75 CAUTION: If the flashing channel button is pressed, the light will be extinguished even if communications with the controller have not been restored. It will not be possible to select this channel again until communications have been restored. Press <ASSIGN> to activate the selection controls. The <ASSIGN>...
- Page 76 off, operate the DVE and fade to black. These are all functions available in normal operation and are detailed in the previous chapters. Selecting the wipe pattern and DVE sequence via the plasma display is only active on the first ‘active’ chassis connected to the panel (i.e. the lowest number channel button lit).