PS-8810 Digital Signal Processor User Manual Connect here first...
PS-8810 DIGITAL SIGNAL PROCESSOR Issue 1.1 DN1101 Software version IQ Win 5.0 IMPORTANT SAFETY INFORMATION DO NOT REMOVE COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. THIS EQUIPMENT MUST BE EARTHED. IT SHOULD NOT BE NECESSARY TO REMOVE ANY PROTECTIVE EARTH OR SIGNAL CABLE SHIELD CONNECTIONS TO PREVENT GROUND LOOPS. ANY SUCH DISCONNECTIONS ARE OUTSIDE THE RECOMMENDED PRACTISE OF BSS AUDIO AND WILL RENDER ANY EMC OR SAFETY CERTIFICATION VOID.
PS-8810 DIGITAL SIGNAL PROCESSOR Important Safety Instructions 1 Read these instructions. 2 Keep these instructions. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. 6 Clean only with a soft dry cloth. 7 Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
PS-8810 DIGITAL SIGNAL PROCESSOR Contents Important Safety Instructions ....................................................................... 2 1.0 Primary Checks ...................................................................................... 9 2.0 Installation ............................................................................................... 9 3.0 Warranty Information ........................................................................... 10 4.0 Introduction ....................
PS-8810 DIGITAL SIGNAL PROCESSOR Contents Balanced Input Wiring ........................................................................................................ 35 Unbalanced Input Wiring ................................................................................................... 36 About the Audio Outputs .................................................................................................. 37 Balanced Output Wiring ..............................................................
PS-8810 DIGITAL SIGNAL PROCESSOR Contents Inputs Window Link .............................................................................................................. 55 Input/Output Matrix Link .................................................................................................... 55 Input Filters .................................................................................................................. 56 Type ....................................................................
PS-8810 DIGITAL SIGNAL PROCESSOR Contents Mode ........................................................................................................................... 68 Step Size ...................................................................................................................... 68 Enable ......................................................................................................................... 68 Ambient Level Meter ....................................................
PS-8810 DIGITAL SIGNAL PROCESSOR Contents 15.0 CobraNet® ..........................................................................................89 Setup ..................................................................................................................................... 91 System Name ............................................................................................................. 91 System Description .........................................................................
PS-8810 DIGITAL SIGNAL PROCESSOR 1.0 ✓ Primary Checks As part of BSS' system of quality control, this product is carefully inspected before packing to ensure flawless appearance. After unpacking the unit, please inspect for any physical damage and retain the shipping carton and ALL relevant packing materials for use should the unit need returning. In the event that damage has occurred, please notify your dealer immediately, so that a written claim to cover the damages can be initiated.
PS-8810 DIGITAL SIGNAL PROCESSOR 3.0 Warranty Information IMPORTANT We recommend that you record your purchase information here for future reference. Noting the serial number here may be invaluable in the event of theft of the unit and, the other details will all be helpful if a warranty repair becomes necessary.
PS-8810 DIGITAL SIGNAL PROCESSOR Warranty Information Worldwide Warranty terms: When sold to an end user by BSS Audio or a BSS Audio Authorised Reseller, this unit is warranted by the seller to the purchaser against defects in workmanship and the materials used in its manufacture for a period of one year from the date of sale. Faults arising from misuse, unauthorised modifications or accidents are not covered under this warranty. No other warranty is expressed or implied.
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PS-8810 DIGITAL SIGNAL PROCESSOR 4.0 Introduction The BSS PS-8810 is a virtual 24x10 routing mixer that also provides unique dual input processing paths, making it two complete eight-channel mixers in one chassis. In addition, every input and output channel includes a full complement of signal processing as well as automixing features to offer a complete 'system-in-a-box' solution.
PS-8810 DIGITAL SIGNAL PROCESSOR Introduction The unit is controllable and programmable using IQ for Windows software (version 5.0 or later) via IQ Loop, or standard RS-232 serial port. As an IQ® component, it can be controlled by an IQ System®, and with its distributed intelligence™ capability, can continue to operate even when an IQ System is not connected. The BSS PS-8810 can also act as a system interface to other IQ components.
PS-8810 DIGITAL SIGNAL PROCESSOR 5.
PS-8810 DIGITAL SIGNAL PROCESSOR Controls, Connectors & Indicators - 16 -
PS-8810 DIGITAL SIGNAL PROCESSOR 6.0 Front Panel c f e g d h b a i a: Power Indicator A green front panel 'Power' indicator lights to show that AC power is being supplied. In addition, the light will blink when an input IR command has been received. b: DATA Indicator An amber front panel data signal presence indicator ('DATA') flashes whenever commands addressed to the BSS PS-8810 are received.
PS-8810 DIGITAL SIGNAL PROCESSOR Front Panel Selector Buttons and Digital Display A B When a parameter is changed, a small indicator (A) momentarily lights to show the parameter has been stored in FLASH memory. Another small indicator (B) is illuminated whenever any parameter is varied from its value within the currently selected Preset. Front panel control may be 'locked out' via IQ for Windows software.
PS-8810 DIGITAL SIGNAL PROCESSOR 7.0 Rear panel F E D B C G A: Audio Inputs A Three-terminal removable barrier block connectors are provided on the rear panel for balanced analogue audio input. Input Selector Each input has a three-position “M L P” selector switch for mic level, line level, or mic level with phantom power. • • • Select the M position for microphone signal levels up to +7dBu (0dbu=0.775 volts).
PS-8810 DIGITAL SIGNAL PROCESSOR Rear panel C: CobraNet® CobraNet Connections and Indicators Connectors These two RJ-45 connections provide CobraNet access to and from the PS-8810C. This feature is not available on the standard PS8810 and this area is covered by a blank plate. The PRIMARY and SECONDARY connectors provide 100Mbit CAT-5 connection to the primary and redundant (secondary) CobraNet networks.
PS-8810 DIGITAL SIGNAL PROCESSOR Rear panel F: Control Port A male DB37 connector is provided on the rear panel for external monitoring and control of objects within the BSS PS-8810. There are eight digital outputs, eight analogue outputs, eight digital inputs and eight analogue inputs available as well as +5V and +10V for powering external circuits. G: Mains Power Inlet AC Line Connector , A rear panel IEC320 connector is provided for attaching the power cord.
PS-8810 DIGITAL SIGNAL PROCESSOR Using the PS-8810 The following sections describe the BSS PS8810’s features and their operation. Where specified, some features are accessed via controls located on the unit itself however, most of the features are configured and controlled using IQ for Windows software. If you are unfamiliar with IQ for Windows software, please refer to the IQ for Windows Help files, visit the BSS Audio website, www.bss.co.uk or the IQ website, www.iqaudiosystems.
PS-8810 DIGITAL SIGNAL PROCESSOR 8.0 Quick Install Procedure This procedure is provided for those who are already familiar with the IQ System and would like to install the BSS PS-8810 in the shortest time possible. Less experienced installers or those wishing a full explanation of the installation procedure are encouraged to refer to the hardware installation section. Installation: 1 Mount the unit into a standard 19-inch (48.3-cm) equipment rack or cabinet.
PS-8810 DIGITAL SIGNAL PROCESSOR Quick Install Procedure connector to a 100Mbit dedicated switch. The SECONDARY connector should be wired if a second ‘redundant backup system’ is to be setup. If using just two units then the primaries and secondaries can be connected directly between the units. To conform to the regulatory agencies, the clamp-on ferrites that are shipped with the unit must be attached to the CAT-5 cables.
PS-8810 DIGITAL SIGNAL PROCESSOR 9.0 Hardware Installation & Connections An IQ System with a Host Computer and a BSS PS-8810 The installation of a BSS PS-8810 consists of installing the hardware and configuring the unit via IQ for Windows (IQ Win) software. An overview of this software starts from section 10.0 of this manual. Refer also to the IQ for Windows on-line Help files for instructions in setting up and operating your IQ software.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Computer Connecting to a Host Computer An IQ host computer is a PC running Microsoft Windows 95, 98, ME, 2000 or NT that is used to configure, control or monitor an IQ System. Depending upon the design of your IQ System, it may or may not require a host computer during normal operation. Third party control systems such as AMX can also be used but, need some fundamental programming before they are able to access the PS-8810’s features.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Computer PC (RS-232) PS-8810 (RS-232) RS232 Cable Wiring Important: Do not use twisted pair wire for RS232 because it increases crosstalk. Instead, use an untwisted cable or ribbon cable. Set the Baud Rate Baud rate for RS232 serial communication is set using the front panel buttons.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Computer 4 When the parameter is adjusted to the desired value, press the RECALL button again to store the setting. The communication parameters of the host computer are set within IQ for Windows software. Please refer to the IQ for Windows Help files for information about setting up communication parameters.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections IQ Loop Connecting the IQ The ‘IQ Loop’ is a serial communication loop for transmitting IQ Loop commands and data between multiple IQ compatible units. It provides excellent flexibility, allowing a IQ Loop ‘loop’ to be wired with either fibre optic cabling or with inexpensive twisted-pair wire. A single IQ System can have more than one IQ Loop. To function properly, a IQ Loop must be unbroken.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections IQ Loop One of the units must be set as the ‘Master’ for the IQ Loop, this is done by setting its ‘IQ interface’ LED to light using the IQWin software. In order to use more than one PC with the IQ loop the IQNET server software must be used, please refer to the IQNET Server help for more information. PS-8810 in an IQ The IQ components in a IQ Loop are wired sequentially. The loop Loop system begins and ends with the IQ interface.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections IQ Component Connections IQ Loop Three different types of connectors are used for IQ Loop wiring on IQ components. These include DIN connectors, RJ-45 connectors, and removable barrier strip plugs. Connection details for these differing types of connectors are found in the following pages. The BSS PS-8810 uses RJ-45 connectors that accept plugs like the one shown below.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections IQ Loop RJ-45 Output to Din Input Barrier Block Output to RJ-45 Input Din Output to RJ-45 Input RJ-45 Output to RJ-45 Input - 32 -
PS-8810 DIGITAL SIGNAL PROCESSOR Connections IQ Loop Wiring IQ Loop As implemented in the BSS PS-8810 the IQ Loop is a 20-mA current loop operating at a baud rate of 38.4kbps. The IQ Loop must be unbroken. The IQ Loop connection can use inexpensive twisted-pair wiring (shielded or unshielded). Here are some guidelines for twistedpair wiring: • When interference is a problem, use shielded twisted-pair wire at least 26 AWG in size.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Audio Audio Wiring The BSS PS-8810 has eight mic/line inputs, two main outputs and eight AUX outputs Three-terminal removable barrier block connectors are provided for the mic/line inputs and main and AUX outputs. About the Audio Inputs Three-terminal removable barrier block connectors are provided for the audio inputs. Each input has an input selector switch. • Slide it to the left (M) for microphone signal levels up to 5dBu (0dBu = 0.775 volts).
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Audio Suggested Audio Input Gain Control Settings 0 dBm = 0.775 VRMS with a 600-ohm load, 0 dBV = 1 VRMS, 0 dBu = 0.775 VRMS Balanced Input Wiring Balanced sources should be wired as shown below. Notice that the shield is not connected to the chassis ground of the source if the source is also connected to the AC ground (that is, it has a grounded AC plug). This prevents unwanted ground loops.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Unbalanced Input Wiring Audio Unbalanced sources should be wired as shown below. The examples are grouped according to whether twin lead shielded wire or single conductor coax (or twisted pair) wire is used.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Audio About the Audio Outputs Three-terminal removable barrier block connectors are provided for audio output (Figure 6.5). Both main and AUX Audio Outputs are balanced and can drive 1200 ohms or more to +20 dBu. The two Main outputs and the eight AUX outputs allow the BSS PS-8810 to act as a 24x10 matrix mixer.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Audio Unbalanced Output Wiring Unbalanced Audio Output Connections - 38 -
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Connections CobraNet® The CobraNet network carries 8 channels of audio bidirectionally Connections via a single cable. Connect the PS-8810C to the CobraNet network using RJ45 terminated standard CAT-5 cable from the PRIMARY connector on the rear of the unit. The PRIMARY connection can either be connected to another PS8810 unit or other CobraNet compatible component’s PRIMARY port.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Connections In order for the system to conform to the stated regulatory requirements, clamp-on ferrites that are shipped with the unit must be attached to the PRIMARY and SECONDARY CobraNet cables. Be sure to double loop the cable in the ferrite.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Control Port Connections Control Port Connect any external circuits you plan to use to control and/or monitor the BSS PS-8810 via the Control Port. The diagram below shows pin assignments for the Control Port. See the Control Port (Section 16.0) for information on the operation of the Control Port, and for examples of wiring circuits to the Control Port connector.
PS-8810 DIGITAL SIGNAL PROCESSOR Connections Modem Connection Modem The BSS PS-8810 is also modem compatible. The BSS PS-8810 Connection periodically sends out an “AT” command string {ATS0=1} that automatically initializes a connected Hayes compatible modem to its max baud rate and auto-answer mode. The link is non handshaking. A standard null modem cable should be used between the interface and modem with the exception of pin 4.
PS-8810 DIGITAL SIGNAL PROCESSOR F o r W i n d o w s This section describes how to set up the PS-8810 from within IQ Win software and includes an overview of the various processing functions and associated windows.
PS-8810 DIGITAL SIGNAL PROCESSOR 10.0 IQ Win Overview The PS-8810 is configured using IQ Win software. This application enables the setup of all the parameters available to the DSP of the ProSys unit. PC Requirements To run IQ Win successfully a 200Mhz Pentium II (preferably 400Mhz or better) machine with an absolute minimum of 32MB RAM (64MB or more is better) is recommended.
PS-8810 DIGITAL SIGNAL PROCESSOR IQ Win Overview versions of these files that pertain to the same hardware setups can then be scheduled to change using the Schedule function in the File menu and this can even be linked to MIDI Time Code using the MTC Scheduler in the Setup menu. A further level of control is also available using IQ Win Scenes, these are not the same as the Unit Scenes that can be set up for the PS-8810 alone.
PS-8810 DIGITAL SIGNAL PROCESSOR IQ Win Overview installations. Error reporting can be suppressed if necessary - this is useful in larger systems where there may be too much generation of data. A security system is implemented using a set of passwords to protect almost any aspect of the software’s functionality from unauthorised access or alteration.
PS-8810 DIGITAL SIGNAL PROCESSOR PS-8810 & IQ Win Quick Set Up IQ Win software is used to configure the PS-8810. This is a free download from the IQ Audio Systems web site at www.iqaudiosystems.com. At the time of writing this software is at version 5 and some elements of the interface and functionality may change if a newer version is released. The following Quick Set Up guide assumes that you have installed a copy of the IQ Win software on the PC that you wish to use to configure the PS-8810.
PS-8810 DIGITAL SIGNAL PROCESSOR 11.0 Processing Functions Metering & Status Metering b c h d IQ Win Input Path Control Window e gf 1 Output Level Meters Audio level meters are provided for each output. The meters sense the audio signal immediately after the audio output processing block. Meter range is from –60 to +20dBu with 0.5dB resolution.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions 4 Metering & Status Input Dynamic Cut/Boost Meters Meters are provided for each Input Processing Section to indicate the overall cut or boost being applied from all signal processing features that affect input gain, including Auto-leveler, Input Compressor, and Automixing. Meter range is from -60 to +20dBu with 0.5dB resolution.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions DSP DSP The DSP processing is divided between four individual DSP’s; two for the input processing and two for the mixing and output processing. • • • • DSP 0 does the processing for input channels 1 through 4 DSP 1 takes care of 5 through 8. DSP 2 is responsible for output processing of Main 1 and AUX 1 through 4 DSP3 has Main 2 and AUX 5 through 8.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions General General b c d e g f h f i 1 Real Time Clock The onboard Real Time Clock tracks day, date, hour, minute and second, and may be set to any date and time desired, or to match that of the computer running IQ for Windows software. The clock is used as a time reference for the Events Scheduling feature. Internal capacitor storage allows the clock to run for up to 45 days without power being applied to the BSS PS-8810.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions 4 General Interface When activated the PS-8810 acts as the IQ interface ‘master’, allowing itself and other components on the unit’s IQ loop to communicate to a host computer connected via its RS232 port. Note that only one PS-8810 can be the interface on a loop and that each type of IQ component must have a unique IQ address. 5 LED Display Mode The sixteen front panel ‘STATUS’ LED’s can be used to display a variety of information.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Signal Path Signal Path The PS-8810 is an 8 analogue input/10 analogue output digital signal processor and matrix mixer that also has the capability of routing 8 digital inputs and 8 digital outputs from a CobraNet network when the PS8810C or CobraNet card is used. The 8 rear panel analogue inputs and the 8 CobraNet inputs are available to each of the 16 Input Processing Sections through a switch.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Path Input Path b c e g i f d h This panel is accessed by clicking on either the input select buttons or the first object (Input Level/Polarity/Mute) in the Signal Path for the required channel. 1 Input Selector Choose which input channel to view by either pressing the blue or green input channel required or, pick an input from the drop down box. 2 Input Meter The switched input signal is sampled and displayed.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Path process box in order to edit its parameters. 5 Input Signal Fader, Muter, and Inverter The output of each of the Input Processing Sections has a fader associated with it prior to the Matrix Mixer. In addition, the Input Processing Section has a muter and inverter. 6 Output Overview This area enables routing of the selected input to the 10 analogue output channels. A fader and meter is provided for each routing.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Filters Input Filters Type The Input Filters provide an array of filter types for any processing need: Low-pass High-pass Low-pass Shelf High-pass Shelf Low-pass EQ High-pass EQ Parametric EQ Frequency Gain All filters are frequency adjustable from 20-20KHz Gain is adjustable from +24dB to –24dB.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Filters Each DSP is capable of 64 filters that must be shared between Input Processing Sections. In addition to preprocessing filtering , there is post-processing filtering and side-chain filtering associated with each gate. Each individual filter can be switched off or the entire processing filter section can be turned on or bypassed.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Filters High Q filters with gain greater than unity can cause unwanted ringing. This is true for both digital and analogue filters and should be used with great care. Each filter is shown graphically in the larger window and can be controlled by clicking on the filter ‘nodes’ and moving them.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Delay Input Delay A delay can be added to any of the Input Processing Sections in order to time-equalize the various input signals. Delay is displayed in IQ for Windows software in time, feet, and meters. Control range is from 0 to 100 milliseconds in 20 microsecond steps. Delay time can be adjusted up to a maximum of 2 seconds for each channel.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Gate Input Gate j b c e d f g h i The Input Gate feature allows signals above a certain level to pass and attenuates lower level signals. When 'open', the Input Gate passes the input signal un-attenuated. When 'closed', it attenuates the input signal by an amount specified with the Depth control. There are eight parameters which control this feature: 1 Enable Gate Switches the gate on or off. 2 Depth Sets the 'closed' gain of the Gate.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Gate open. Once opened the input must reach a level below the Threshold minus Hysteresis to close. Control range is from 0dB to 12dB in 0.5dB steps 5 Signal Delay Additional delay applied to the input signal, but not to the control key signal. Provided to allow the Input Gate to 'look ahead' in time. Control range is from 0 milliseconds to 10 milliseconds 6 Attack Time Sets the time required for the Input Gate to increase its gain by 20dB.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-leveler Auto-Leveler g b c d e f h i The Auto-leveler works in tandem with the Input Gate to compensate for long-term average input levels that vary over time. When the Auto-leveler is enabled, the open state gain of the corresponding Input Gate, normally 0dB, is adjusted dynamically to achieve a desired average output level. The Auto-Leveller’s affect on input gain is metered by the Input Dynamic Cut/Boost Meter.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-leveler 2 Target Level Sets the desired average output level. The Auto-leveler will expand input signals below this level and compress input signals above this level. Control range is from -100 to +20dB in 0.5dB steps. 3 Max Gain Sets the maximum gain through the Auto-Leveler. This feature can prevent 'runaway' from occurring during periods of very low signal level. Control range is from -100 to +20dB in 0.5dB steps.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Compressor Input Compressor b h c d e f g The input compressor provides a means for controlling the dynamic range of input signals. It is a feed-forward type, which performs the compression after the Input Level Meter. The Input Compressor’s effect on input gain is metered by the Input Dynamic Cut/Boost Meter.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input Compressor 4 Soft Knee (Width) Sets a range in dB around the actual threshold through which the compressor gain is gradually modified from unity to the final compressed gain. Control range is from 0 dB to +20dB in 0.5dB steps. 5 Attack Time Sets the time required for the Compressor to decrease its gain by 20 dB. Control range is from 1.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-Mixer Automixer Automatic mixers allow 'hands-free' mixing that minimises many of the undesirable effects of using multiple microphones. Applications such as conference rooms, training rooms and boardrooms typically implement many microphones for individual speakers. Simultaneously mixing all microphones with acceptable gain before feedback manually is not possible.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-Mixer Automixing Group Controls c g d e f b j i . h There are two group controls and two group indicators for this feature: 1 Priority Mix Enable Turns Ducking Priority Mix on and off for the automix group 2 Max Number of Open Mics Sets the max number of open mics within the automix group.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-Mixer NOM NOM (Number of Open Mics) Attenuation reduces overall system Attenuation gain as the number of open mics increases beyond one for improved gain before feedback. There are three group controls for this feature: 5 Enable Turns NOM Attenuation on and off within an automix group 6 Mode Sets the attenuation algorithm to linear or logarithmic.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions 9 . / Auto-Mixer Ambient Level Meter Indicates the calculated ambient level for the automix group. Group Gate Threshold Ambient Offset Sets the amount above the calculated ambient level for the gate threshold for all inputs participating in the automix group. • For inputs with ambient weighting factors equal to zero or one, the actual gate threshold will be offset from the calculated ambient level by this amount.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-Mixer Automix Matrix Accessed by pressing the Auto-mix Martian button in the Signal Path window. This window is an interactive overview of all the possible automix routings assignments and priorities. There are three main automix functions; Ducking, NOM and Adaptive Gating and these work as a group.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Auto-Mixer Automixing Individual Controls c d / b e There are four individual Input controls: 1 Priority Assigns a relative priority to each channel. Control range is 1 to 8; where 1 is the highest priority and 8 is the lowest priority 2 Depth of Cut Sets the ‘ducked’ mic gain. Control range is from -100 to 0 in 0.5dB steps 3 Attack Time Sets the time required for Priority Ducking to attenuate the mic gain by 20dB.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Solo/Mute Solo/Mute The status of the Input and Output channel mutes and solos can all be monitored by pressing the “Solo/Mute” button above the main Signal Path window. From here individual channels can be soloed for preview purposes and muted equally, all solos and mutes can be switched in or out for the Inputs and Outputs separately.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input/Output Matrix Input/Output Matrix The matrix allows routing, soloing, muting, gain adjustment and polarity inversion of the available audio channels through the PS8810. This panel is accessed by clicking on the grey area of the 24x10 block in the middle of the Signal Path window.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input/Output Matrix system and the signal from Input Processing Section B for recording. This panel at top left of the window has two functions; firstly it acts as the overall mute cancel control, the top speaker icon unmuting all the outputs, the bottom all the inputs and the middle both the inputs and outputs simultaneously. Note that this clears any solo assignments made for the selected channels.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Input/Output Matrix The CobraNet input channels have the CobraNet logo and are coloured pink. There are no overall channel controls available to these inputs. The crosspoint controls in the Matrix itself enable an amount of signal to be routed using the black level control - control range is from “Off” to +20dB. Exclusive assignment of a particular input to output is attained by pressing the button at the crosspoint between the required channels.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Output Path Output Path This panel is either accessed by clicking on one of the numbers written in the 24x10 area or by clicking on the Output fader/mute/ polarity icon at the end of the Output processing section. In addition to the output of each of the sixteen Input Processing Sections, the eight CobraNet Inputs are fed to the Matrix Mixer, providing a 24 Input by 10 Output fully independent crosspoint mix as controlled by the Input/Output Matrix.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Output Section Output Section Output Processing Sections Each of the ten Outputs, (two 'Main' and eight 'AUX)', have independent Output Processing Sections to allow control of the mixed output. Output Processing functions include delay, filters, ambient leveler, limiter, fader, mute, and polarity inverter. Output Delay Output Signal Delay can be set for each Output Processing Section.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Ambient Leveler Ambient Leveler c b e f d i j g h The Ambient-Leveler expands the output channel gain to compensate for a sensed ambient level. The ambient level can be sensed from any of the sixteen Input Processing Sections, or the computed ambient level from one of the 32 auto-mix groups. This feature allows the BSS PS-8810 to maintain optimum signal to noise and intelligibility in environments with varying background noise.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Ambient Leveler Added Gain, prevent excessive system gain. Control range is from -80 dB to +20 dB in 0.5dB steps 4 Expansion Ratio Determines how much the gain of the output channel will increase for every increase in the ambient signal level above the Threshold setting. A 4:1 Expansion Ratio setting will raise the output gain 4dB for every 1dB that the ambient signal increases. Control range is from 0.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Output Limiter Output Limiter b c d e The Output Limiter function provides a means of directly monitoring and controlling peak output level. It is especially valuable for the protection of amplifiers, loudspeakers and other audio equipment. The Output Limiter operates similar to a compressor with an infinite compression ratio, preventing the output level from exceeding the specified Threshold.
PS-8810 DIGITAL SIGNAL PROCESSOR Processing Functions Output Select Output Select Each AUX output is individually switchable via the AUX Output Select switches, accessed by clicking on the black Aux boxes in the Signal Path window. The eight rear panel AUX outputs can either be the output of an Output Processing Section or they can be fed from a CobraNet Output.
PS-8810 DIGITAL SIGNAL PROCESSOR 12.0 Presets d b c The BSS PS-8810 has the ability to reconfigure itself with a single command. Thirty-two 'Presets' can be stored and recalled via a variety of means including the front panel, via a Control Port Input, an IR command, or a scheduled 'Event'. 1 For a Preset to be stored, all of the individual controls needs to be set up using IQ Win whilst on-line to the PS-8810, then the 'Store' button pressed and a Preset selected.
PS-8810 DIGITAL SIGNAL PROCESSOR 13.0 Scenes There are times when only a few objects’ settings need to be changed and this is the function of 'Scenes'. PS-8810 Scenes allow up to 50 objects to be grouped together and changed to a specific state with a single command. Like Presets, Scenes can be changed from the front panel, a Control Port Input, an IR command, or a scheduled 'Event'.
PS-8810 DIGITAL SIGNAL PROCESSOR Scenes Scene Editor b c d h e f g the Scene to be edited in the ‘Scene’ box at top, or click on 1 Select one of the 32 buttons located at the right of the screen. 2 The ‘Controls’ selector allows the type of parameters to be chosen to be narrowed down by selecting either ‘dB’ or ‘Logical’. 3 Use the ‘Named’ box to type in all, or part of, the name of the control you wish to add to the Scene.
PS-8810 DIGITAL SIGNAL PROCESSOR 14.0 Events Scheduler Different configurations can be triggered at particular times. The BSS PS-8810 has an internal real time clock that can be used to setup a schedule for recalling Presets or Scenes. By using the 'Event Scheduler' to recall unit settings at certain times, the unit can be used in a variety of different ways. The internal clock has a ‘keep alive’ capacitor that allows the unit to be unpowered for up to 45 days without losing the current date and time.
PS-8810 DIGITAL SIGNAL PROCESSOR Events Scheduler One Time Events An Event can be scheduled to occur only once, and the time of the Event can be programmed by choosing 'once'. The exact time of the Event can then be set. Periodic Events If an Event is required at a set rate, the Event editor allows the programming the Event at periodic intervals. Each Event can have its own repetition rate and starting time, independent of any other. The Event schedule window shows the next 10 occurrences of the Event.
PS-8810 DIGITAL SIGNAL PROCESSOR Events Scheduler Schedule The main Event 'View Schedule' button allows viewing of all of the enabled Events for a defined period of time. This ensures that the desired sequence of periodic Events are occurring at the desired times.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet ® - 88 -
PS-8810 DIGITAL SIGNAL PROCESSOR 15.0 CobraNet® Explanation CobraNet is a technology developed by Peak Audio, Inc. that allows real time digital audio to be distributed over standard Fast (100Mb) Ethernet hardware. CobraNet allows the PS-8810C to not only have analogue inputs and outputs, but also to provide 8 digital Inputs and 8 digital Outputs from a CobraNet network.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® The Conductor recognizes each device on the network and assigns a transmission position for each bundle of each device. In addition the Conductor sends master clock to each device to ensure that all audio is synchronous. Like a conductor of an orchestra, the Conductor signals the beginning of a synchronous transmission cycle, and then each device sends its bundle(s) in lock step.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Setup Setup b c d e f g h i j The CobraNet Setup tab allows an overall control of the PS-8810C’s CobraNet functions.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Setup 7 8 9 IP Address The Internet Protocol address that is assigned by the system integrator. Used as a standard part of ethernet networking transmission protocols and works much like a zip/postal code for the unit on the network. Conductor The CobraNet 'Setup' tab indicates information about the status of the Conductor.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Input Input The PS-8810C can accept four Bundles from the CobraNet network and route the audio Slots of those Bundles into the processing and mixing of the unit. These four Bundles (RxA, RxB, RxC, and RxD), are assigned Bundle numbers by the Bundle window. If a transmitter is supplying audio on that Bundle, the Active lamp will light.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Output Output The PS-8810’s eight CobraNet Outputs can be assigned to be transmitted on Slots in one of four CobraNet Bundles. The CobraNet Outputs can accept audio from either the corresponding ‘B’ Input Processing Section or the corresponding AUX Output Processing Section. Each of the eight CobraNet Outputs is then assigned a Bundle and Slot position. Unlike the CobraNet Inputs, the same CobraNet Output can go to more than one Bundle/Slot position.
PS-8810 DIGITAL SIGNAL PROCESSOR CobraNet® Output The transmit Bundle is assigned in the window and a unique priority can also be assigned for each Bundle. This Bundle Priority is used by the Conductor to assign a transmit position on the CobraNet network. Audio Bundles are sent on the network in a synchronous fashion dictated by the Conductor. The Conductor assigns a position to each transmitting Bundle in the network based upon that Bundle’s Priority.
PS-8810 DIGITAL SIGNAL PROCESSOR External Control - 96 -
PS-8810 DIGITAL SIGNAL PROCESSOR 16.0 Infrared Remote Control The BSS PS-8810 has the ability to use an IR remote control such as a programmable remote control device like the Philips Pronto to remotely control the unit. The front panel of the PS-8810 has an IR receiver that can detect IR signals and switch objects based upon a particular received code. 64 available IR commands allow a variety of objects to be selected.
PS-8810 DIGITAL SIGNAL PROCESSOR Infrared Remote Control IR Code Editor IR Code Editor When a particular IR code’s Edit button is pushed, the IR Code Editor window allows selection of objects for inclusion in that IR code. Each selected object can be edited for particular usage. The IR code can also be configured to recall a 'Preset' or a 'Scene'. As a setup tool, the 'Try' button allows the IR code configuration to be simulated to ensure that it acts as expected.
PS-8810 DIGITAL SIGNAL PROCESSOR Infrared Remote Control Philips Pronto Philips Pronto The Philips Pronto IR Remote Controls, TS1000 and TSU2000, allow access to the PS8810’s IR commands. The Philips Pronto runs configuration programs that may be created on the remote itself or by using the software package ProntoEdit. ProntoEdit documentation and software comes standard with the TSU200 or is available for download from the Philips Web site at http://www.pronto.philips.com/prontoedit4.htm.
PS-8810 DIGITAL SIGNAL PROCESSOR Infrared Remote Control Philips Pronto Each page contains 8 buttons. There are a total of 64 buttons (0These buttons correspond to the 64 different code # buttons on the IQ Win control page. These buttons will only work if the IQ address of the PS-8810 is set to 1. Similarly, there are 64 buttons under the device IQ ADDR 2. These buttons will only work if the IQ address of the PS-8810 is set to 2.
PS-8810 DIGITAL SIGNAL PROCESSOR Infrared Remote Control • • • • Philips Pronto Select the button for RC5x. Enter in 19 for System (19 defines a PS-8810). Enter the IQ address (0-63) for Command. Enter the code # (0-63) for Data. Once all of the buttons and windows are set up, save the program as a *.ccf file type. Download the program into the pronto and try it out.
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PS-8810 DIGITAL SIGNAL PROCESSOR 17.0 Control Port The Control Port provides a means for external monitoring and control of ‘objects’ within the BSS PS-8810. It can be used to turn peripherals on and off, send signals to other system components, receive digital and/or analogue signals from other components, and indicate status of the input gates. The Control Port implements sixteen outputs and sixteen inputs along with power supply outputs and common grounds.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Digital Inputs (DIN 1-8) Digital Inputs These inputs are digital (high or low) only. The inputs are current driven and will accept voltages up to +25VDC. They switch at approximately +1VDC. They can be used to control one or more objects within the BSS PS-8810. The Pin State Indicator shows the actual status of the hardware input as it comes into the rear panel connector.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Digital Inputs (DIN 1-8) inverted logic. Multi-valued objects (e.g. gains, thresholds, etc.) can be set to different settings for input transitions from low-to-high and high-to-low. 2 Bump Object(s) Similar to Set Object mode except that rather than setting the object to an absolute value, the specified values are added to the current object values. Upper and lower limits can be set to limit the range of the control.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Digital Inputs (DIN 1-8) are to participate in the room combining, individual closure patterns can be programmed to trigger particular Presets. Each combination can be programmed to its own Preset. The example screen shot shows three digital inputs participating in an 8 option room combining scheme. All three inputs off selects Preset 1, while input 1 on while inputs 2&3 are off select 2, and so forth.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Digital Outputs Digital Outputs There are eight digital outputs. Each output may be controlled manually, configured to indicate the state of a binary object or, configured to indicate whether a particular Preset is loaded.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Digital Outputs There are many possible uses for the Control Port outputs. For example, they can be used to turn on auxiliary cooling fans. To do this the output signal might be used to close a relay. The relay would then turn the fans on or off. A Sample Control Port Output Circuit By monitoring the operating condition of amplifiers (with the IQ System software), the need for additional cooling would be apparent.
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Analogue Inputs Analogue Inputs The Control Port analogue inputs allow a 0 to +10VDC signal to (AIN 1-8) be input to allow remote control of continuously variable objects such as faders or filter frequencies. They can also be used to control switched objects (just like the Digital Inputs).
PS-8810 DIGITAL SIGNAL PROCESSOR Control Port Analogue Outputs Analogue Outputs In addition to the eight Digital Outputs, there are eight Analogue Outputs that can be used to provide an output voltage (0 to +10VDC for control). These outputs can reflect a particular analogue object such as a fader, or a switched object and, can be used to provide drive for such things as lighting controls or for a standard digital type output.
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PS-8810 DIGITAL SIGNAL PROCESSOR 18.0 Technical Information Technical Description Following is a technical description of the operation of the BSS PS8810. Audio Input Section Each audio input signal first passes through a balanced filter designed to eliminate RF interference. The RF filters are a balanced network of chokes, ferrite beads, and capacitors that attenuate both common-mode and differential-mode signals above 500 kHz. Optional input isolation transformers are available.
PS-8810 DIGITAL SIGNAL PROCESSOR Technical Information audio as a 'brick' of data. After the input DSPs have processed the data, they transfer the audio bricks to shared memory. The two output DSPs then retrieve the audio from memory and do the required output processing. The audio is then sent serially from the DSPs serial ports either to the Output board or the CobraNet outputs.
PS-8810 DIGITAL SIGNAL PROCESSOR Technical Information • . • Flash Memory Storage: In addition to storing program code for the control and DSP processors, flash memory provides storage for all nonvolatile data including Presets and setting IQ Loop: The dual RJ-45 connector allows IN/OUT connection to an IQ loop. The BSS PS-8810 can act as either an ordinary component or an interface.
PS-8810 DIGITAL SIGNAL PROCESSOR Technical Information • Control Port: External events can be either generated or monitored via this port and used to control or signal some function within the unit. Sixteen digital outputs, eight digital inputs, and eight analogue inputs provide access to the unit. current-limited voltages (+5V and +10V) are provided to power external circuits Digital Outputs: These eight outputs provide +10V at 10mA as configured by IQ software.
PS-8810 DIGITAL SIGNAL PROCESSOR 19.
PS-8810 DIGITAL SIGNAL PROCESSOR 20.
PS-8810 DIGITAL SIGNAL PROCESSOR Specifications Power Requirements: Protection: 100VAC to 240VAC, 24W nominal If communication is lost, the unit will continue to function with the last commands received RS232 Data Communication: Baud Rate: Selectable to 19.2K, 38.4K, 57.6K, or 115.2K BAUD Data Format: Serial, binary, asynchronous; 1 start bit; 1 stop bit; 8 data bits; no parity Data Rate: 38.
PS-8810 DIGITAL SIGNAL PROCESSOR Specifications Control Port: Power Supply: Outputs: Logic Low: Logic High: +5VDC and +10VDC outputs are provided. The total output current is limited to 1A less than 0.1V 10V (via internal pull-up) Output Current is limited to 10mA max per pin Inputs: Input Impedance: Logic Low: Logic High: Analogue Range: Max Input Voltage: Mechanical: Weight: Dimensions: greater than 50kOhm less than 0.5V greater than 5V 0 to 10V (for inputs 9-16 only) 25V 13 pounds, 4 ounces (6.
PS-8810 DIGITAL SIGNAL PROCESSOR 21.
PS-8810 DIGITAL SIGNAL PROCESSOR User Notes - 121 -
