Optimizing output gain structure | ClearOne comm PSR1212 instruction

System Configuration ~ Inputs and Outputs

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passing NOM information. Enable NOM if you want to place this output in a constant gain mode. Default is on. When enabled, the NOM button light illuminates green.

Gain

The Gain slider on the selected output in the Outputs 1–12 window is used to adjust output gain level.

•Use the Gain slider to adjust output volume level. You can also enter the level directly in the decibel box. If you select any level below -60dB, the signal will be muted. The Level meter, when enabled, shows the signal level when a signal is present.

Min/Max limits

Use the yellow and blue upper and lower limit arrows on the Gain scale to create minimum and maximum gain level limits. These limits apply only when using relative gain commands; absolute gain commands can exceed the min and max limits. Min/Max limits apply to all serially connected control devices and prevent users from adjusting levels beyond the min/max levels, provided relative gain commands are used.

Optimizing output gain structure

How you adjust an output’s gain directly affects sound quality. The optimal output gain setting is one which is adjusted as high as possible above the noise floor without introducing clipping. Clipping can cause distortion which can damage amplifiers and loudspeakers.

To adjust the output level properly, place a signal on the output at the maximum level it will generate. Adjust the output gain until the peak level of the input, as shown on the Level meter, just begins to enter the red (clipping) zone, then reduce the gain slightly until peaks no longer climb into the red zone. This setting will ensure that the PSR1212 maximizes the signal-to-noise ratio without clipping the signal.

Max adjust

Min adjust

Figure 3.42.

Output gain adjust

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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ClearOne comm PSR1212 operation manual Optimizing output gain structure

Contents

PSR1212 Digital Matrix Mixer PSR1212 Installation ClearOne Part No June 2002 Rev Table of Contents System Configuration Advanced Configuration Appendices Control Technical Services Group ~ 1-800-283-5936 USA ~ Product overview Introduction New Features ClearOne Communications EuMEA GmbH Professional Services GroupSales and Customer Service Technical Support Unpacking Controls and ConnectionsFront panel Introduction ~ Controls and Connections Rear panel Introduction ~ Controls and Connections Expansion bus Networking Environmental PowerEquipment placement Operational Requirements Hardware Setup Installation To connect the unit Installation ~ Hardware Setup To create an expansion bus network Installation ~ Networking UnitsNetworking Units Expansion bus connections To assign device IDs Mixer modeTo select a mixer mode Device IDs Pressing Esc at the top of the tree does nothing Installation ~ LCD ProgrammingLCD Programming LCD menu tree Run Macro To adjust a parameterSelect Preset System menu RS-232 menu Flow Control hardware Enable ModemClear Password Meter menu Inputs menu Gain Outputs menu Matrix Technical Services Group ~ 1-800-283-5936 USA ~ Ware Requirements System Configuration Installing G-Ware To install G-WareCreating Floppy Disk Copies Site Setup Creating a new siteTo create a new site Select the PSR1212 icon and click Add Adding a PSR1212To auto-detect units To manually add units To configure Unit Properties Configuring Unit Properties System Configuration ~ Site Setup System Configuration ~ G-Ware Screens Ware ScreensFlow Screen Copying and pasting settings Safety MuteStatus bar 20. G-Ware Matrix Screen Matrix Screen Cross point attenuation Audio RoutingExpansion bus O-Z routing Process A-H routing Matrix report System Configuration ~ Audio Routing Inputs Inputs and Outputs Type Pwr Phantom PowerFilters Active Filter Table View NOM count Manual Off deactivates the mic To configure filtersGate Activation Gate Ratio PA Adaptive ModeChairman Override Adaptive Ambient PA Adapt and AEC Reference Decay Rate Click Close to exit the window To create a virtual reference To configure gating group settings Gating Group SelectTo assign a gating group Min/Max limits Click the Gating Group label to change the group names Meters 38. Inputs 9-12 Configuration window 40. Gain meters NOM Outputs Optimizing output gain structure Expansion Buses From Expansion Bus O-ZTo Expansion Bus O-Z Processing A-H Processing Cmprs compressor CompressorsGroup 47. Processing Filters window Remove Filter PhaseBypass Add Filter Changes you make in the distance and temperature fields Delay Optimizing process gain structure 50. Process Gain adjust and meter Presets Creating PresetsOverview Preset Configuration pane Affected when the preset is runPreset password is set in the Unit Properties window see Advanced Configuration ~ Presets Assigning virtual references to the preset Storage space To create a preset To run a preset using front panel control Running presetsRunning multiple presets simultaneously To run a preset using G-Ware Room combining example All presets are ready to run again Four macros one for each configuration are set up as follows To create a macro using Macro Recorder MacrosCreating macros 16 Macro Name window To create a macro using Macro Editor To delete a macro To add or insert a command lineEditing macros To edit a macro Running macros To run a macro using G-WareTo run a macro using front panel control To run a macro using the Select panel or Gpio Select the PSR1212 Unit and Input Channel you want to use Signal GeneratorUtilities To use pink or white noise Document Compare Utility To use toneTo compare site files Open window Operation ~ Utilities Print Preview window Copying settings Print Reports window Print Reports Button To upgrade firmwareGFirm Firmware Utility Toolbar 13. Selecting baud rate Ware Switcher Copy and paste settingsTo use G-Ware Switcher Operation ~ Monitoring Views Message LogMonitoring Views Gate View Meter Views To configure Meter Views To program control/status pins Gpio BuilderControl/Status a Remote Builder XAP IR RemoteControl ~ Remote Builder Select IR Remote default from the Select Remote Type list ClearOne Control PanelsControl ~ Remote Builder To program the XAP IR Remote Control ~ Remote Builder To program the Volume panel Select Panel selected in the Remote Builder To program the Select panel Remote Modem Access Serial commandsRS-232 Port Control ~ RS-232 Port Command stringsTo create a command string To run a command string Technical Services Group ~ 1-800-283-5936 USA ~ Appendix a Specifications Pin Number Control All nine pins be connected toAppendix B Pinouts Pin Number Appendices ~ Appendix B Pinouts Control/Status connectorsPin Definable Type Default Description First 16 pins on Preset select bit Control/Status B port pinout+5VDC, 300mA Pin Description RS-485 Remote Panel a and B connectorsSet connector pinout Line connector pinout Appendix C Control Panel Connecting the Control Panel 800 ft/244 m Appendices ~ Appendix C Control Panel Figure C.6. Volume Control Panel Assembly Appendix D Accessories Appendices ~ Appendix D AccessoriesAccessory ClearOne Part Number Example Appendix E Serial CommandsCommand structure Conventions Unit type Appendices ~ Appendix E Serial CommandsGroups and channels Type and device IDs Serial command error codes Error number Text message Explanation/SolutionMeter type definitions Command Function PSR1212 Serial commands Channels Selects/reports NOM setting on outputSelects/reports off attenuation mode for Selects/reports signal generator activation Argument details Aamb Adaptive Ambient ModeAmblvl Ambient Level Adjust AGC Automatic Gain Control Chairo Chairman Override Mode Baud Baud RateCgroup Compressor Group Select Compress Compressor Adjust Compsel Compression SelectGain of 3dB 100 Decay Decay AdjustDelay Delay Adjust Delaysel Delay Select Channel Group Dfltm Default Meter101 Did Device ID Name Description Units Filter Filter Adjust102 Examples Flow Flow Control FMP First Mic Priority Mode103 Filtsel Filter Select Button assignment Gain Gain Adjustment104 FPP Front Panel Passcode Example GHOLD- Gate Hold Time Adjust105 Gate Gate Status Gover Gating Override Gmode Gating ModeGratio Gate Ratio Adjust 106 107 Greport Gate ReportGrpsel Gating Group Select Label Label LFP Lock Front Panel LMO Last Mic On ModeLock Preset and Macro Lock 108 LVL Level Lockprst Apply the lock to a preset or macroLockpwd Set preset/macro password 109 = Toggle 110Lvlreport Level Report Lvlrrate Level Report Rate Macro Macro Execution/Reporting Master Expansion Bus Master ModeMAX Maximum Gain Setting This setting will affect all relative gain adjustments Mdmode Modem Mode MIN Minimum Gain Setting112 Minmax Minimum and Maximum Gain Setting 113Minit Modem Initialization String Mmax Maximum Number of Microphones Mline Mic/Line AdjustMpass Modem Password 114 Mtrxlvl Matrix Attenuation Adjustment 115Mtrx Matrix Mute Mute NOM Number of Open Microphones ModeOffa Off Attenuation Mode 116 117 PAA PA Adaptive ModePP Phantom Power Preset Preset Execution/Reporting String location 118Prgstring Program String Supported special characters Name Description Unit Ramp Ramp Gain Adjustment119 Refsel PA/AEC Reference Select Serecho Serial Echo Refset Reference channel setupSermode Serial Mode 120 Sftymute Safety mute Siggen Signal Generator121 Tout Time Out Select Sigtout Signal Generator Time Out122 String String Execution VER Version Command Value Null to return value123 UID Unit ID 124 Appendix F Warranty 125 Appendices ~ Appendix F Warranty FCC Part 15 Compliance Safety Information126 Appendix G Compliance Glossary 127 Glossary 128 129 130 131 132 133 134 Signal Delay Used for 135 Index 136 Index 137 Phase 138Frequency response 139