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FM-531HD / May 2013

F M - 5 3 1 H D P R O G U I

Side Bar Region ........................................................................................................3-49

Presets ...................................................................................................................3-49

Save ........................................................................................................................3-49

Library ....................................................................................................................3-50

Locking Presets ..................................................................................................3-50

How to View Preset Changes .............................................................................3-51

Devices ...................................................................................................................3-51

Quick Save (QSave) ................................................................................................3-52

Title Bar Region .........................................................................................................3-53

Status .....................................................................................................................3-53

Device .....................................................................................................................3-53

Preset .....................................................................................................................3-54

Notes on Online and Offline Working

.....................................................................3-54

Accessing Menu Options ..........................................................................................3-55

View Menu Items ....................................................................................................3-55

Hardware Menu Items ............................................................................................3-55

FM-531HD Hardware Update ............................................................................3-56

Preset Menu Items .................................................................................................3-57

Содержание FM-531 HD

Страница 1: ...FM HD Digital Audio Processor FM 531hd 600 Industrial Drive New Bern North Carolina 28562 tel 252 638 7000 fax 252 637 1285 Technical Manual...

Страница 2: ...Technical Manual Wheatstone Corporation May 2013 FM HD Digital Audio Processor FM 531hd...

Страница 3: ...North Carolina 28562 tel 252 638 7000 fax 252 637 1285 FM 531HD FM HD Digital Augio Processor Technical Manual Software Version 2 0 0 and higher 2013 Wheatstone Corporation FM 531HD May 2013 Ultra Hig...

Страница 4: ...not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful in...

Страница 5: ...thing like this Now to the right of the System pane select the System 3rd Party Devices tab Click the Add button to bring up the Add 3rd Party Device dialog Type in a convenient Name and insert the IP...

Страница 6: ...Pre Emphasis Go 1 8 Arbitron People Meter PPM 1 9 AC Power Considerations 1 9 Front Panel Interface 1 10 FM 531HD Front Panel Navigation 1 10 Basic Setup 1 11 Rear Panel Connections 1 13 Audio Inputs...

Страница 7: ...der Menu 2 11 MPX Processor Style 2 11 MPX Process Control 2 12 BS412 MPX Power Controller 2 12 Pilot Injection 2 13 Emphasis 2 13 SCA 1 and SCA 2 Inputs 2 13 TX 1 and TX 2 Outputs 2 13 Presets Menu 2...

Страница 8: ...ssing Menu Options 2 30 Getting Started 3 5 Configuring The Pro GUI 3 5 Connecting Directly Without a LAN 3 6 PC System Requirements 3 6 The Really Remote Connection 3 6 VPN 3 6 The FM 531HD and Inter...

Страница 9: ...3 27 AGC Attack 3 27 AGC Release 3 27 Compressor Attack 3 27 Compressor Release 3 27 AGC Mixer 3 27 Stereo Enhance 3 27 HD Limiter Menu 3 28 31 Band Drive 3 28 31 Band Limiter Sidebar 3 28 Threshold 3...

Страница 10: ...ereo Mono 3 40 SCA 1 2 Gain 3 40 TX 1 Level 3 40 TX 2 Level 3 40 Analog Output Type 3 41 Composite MPX 3 41 Left Right 3 41 Left Right De Emphasized 3 41 Test Oscillator 3 41 System Menu 3 42 Input Ou...

Страница 11: ...A 9 Interpreting Common Audio Processing Terms A 12 Background A 12 Audio Terms and Wheatstone Processing A 13 Thump Rumble Bottom A 13 Punch Boom Tubby Warm A 14 Mud A 14 Honk A 15 Whack A 15 Fuzzy...

Страница 12: ...People Meter PPM 1 9 AC Power Considerations 1 9 Front Panel Interface 1 10 FM 531HD Front Panel Navigation 1 10 Basic Setup 1 11 Rear Panel Connections 1 13 Audio Inputs 1 14 Analog In 1 14 AES In 1...

Страница 13: ...processing during spectral balance and density corrections Remote control of the FM 531HD is via Windows based Graphical User Interface GUI software and can be accomplished via 100BaseT wired Ethernet...

Страница 14: ...he audio is presented to the codec The FM signal path is equipped with a state of the art distortion cancelling clipper as well as a selectable look ahead limiter that may be used in combination with...

Страница 15: ...ould be returned to Wheatstone Corporation under a Return Authorization should repair ever become necessary FM 531HD Installation Tips Grounding Establish a low impedance common ground in the facility...

Страница 16: ...tputconnectits outputtoprocessor s Hi XLR pin 2 input and connect the shield wire to the Lo XLR pin 3 input If the cable s shield is used recommended connect it at the hardware end only XLR pin 1 to p...

Страница 17: ...ask Digital Audio baseband192 Connections For digital audio connections always use a good quality digital audio cable or twisted pair Category 5E 6 Network cable having a characteristic impedance of 1...

Страница 18: ...d to send the program material to the transmitter site there are several issues to consider Analog Left Right STL Older analog discrete left right STL s can suffer from an inability to control audio p...

Страница 19: ...r this is because codecs do their work by examining the audio for opportunities to remove content that shouldn t be audible to the average human ear When densely processed audio is presented to a code...

Страница 20: ...Power consumption is under 100VA Although aggressive AC input filtering is utilized on the AC power input it is al ways advisable to use external surge protection and an uninterruptible power supply...

Страница 21: ...osts a dot matrix display that shows the current preset on the processor as well as a jog wheel take button and headphone jack The jog wheel allows the user to scroll and take presets as well as adjus...

Страница 22: ...alue that is appropriate for your region Note that if pre emphasis has been enabled in the Input menu all FM outputs will be pre emphasized unless De Emphasis for that output is explicitly selected No...

Страница 23: ...ation in your market and with your program material If you are in a region that requires the use of the BS412 limiter some European countries you may control the behavior of the limiter from the front...

Страница 24: ...531HD s output mode is set to Composite Multiplex the Analog left and right output XLR connec tors emit a balanced Composite Multiplex signal A balanced signal is preferred when interfacing with exci...

Страница 25: ...s being below 48dBFS for more than 30 seconds Failover from AES3 to WheatNet IP or vice versa is not available Analog In XLR F Pin 1 XLR LT SH LINE LT IN SH Pin 2 XLR LT HI LINE LT IN HI Pin 3 XLR LT...

Страница 26: ...BNC 2 SH TX 2 OUT SH HD Audio Outputs optional The optional HD audio output is available as AES on a male XLR connector on the rear of the FM 531HD HD AES Out XLR M Pin 1 XLR HD SH AES HD OUT SH Pin...

Страница 27: ...cting directly between the computer and the FM 531HD with no network in between it is normal to use a crossover cable Ethernet RJ 45 Pin 1 TXD Pin 2 TXD Pin 3 RXD Pin 4 N C Pin 5 N C Pin 6 RXD Pin 7 N...

Страница 28: ...lots are full An unlimited number of presets can be stored on the PC that hosts the Windows based remote control GUI software In order to prevent clicks and pops when presets are changed preset parame...

Страница 29: ...abled but has the Stereo Pilot turned off a Mono Preset Apreset that changes the input or output source or level calibrations note System Settings Change with Preset Takes must be enabled in the Syste...

Страница 30: ...F 2 1 3 PIN 1 XLR RT SH LINE RT IN SH PIN 2 XLR RT HI LINE RT IN HI PIN 3 XLR RT LO LINE RT IN LO XLR RT F Analog Out XLR M 1 2 3 PIN 1 XLR LT SH LINE FM LT OUT SH PIN 2 XLR LT HI LINE FM LT OUT HI P...

Страница 31: ...PIN 3 XLR LO AES IN LO XLR F Digital XLR Connections 1 2 3 PIN 1 XLR SH AES FM BASEBAND192 OUT SH PIN 2 XLR HI AES FM BASEBAND192 OUT HI PIN 3 XLR LO AES FM BASEBAND192 OUT LO XLR M PIN 1 XLR HD SH AE...

Страница 32: ...I SCA 1 IN HI CENTER PIN BNC SCA PIN 2 BNC 1 SH SCA 1 IN SH SHELL PIN 1 BNC 2 HI SCA 2 IN HI CENTER PIN PIN 2 BNC 2 SH SCA 2 IN SH SHELL 1 2 PIN 1 BNC 1 HI TX 1 OUT HI CENTER PIN BNC TX PIN 2 BNC 1 SH...

Страница 33: ...G E N E R A L I N F O R M A T I O N RJ 45 ETH Ethernet RJ 45 1 2 3 4 5 6 7 8 TXD TXD RXD RXD N C N C N C N C General Purpose Interface DB 9 GPI 7 IN GPI 5 IN GPI 1 IN GPI 8 IN GPI 6 IN GPI 4 IN GPI 2...

Страница 34: ...ource 2 9 Audio Input Signal Presence Indicators 2 9 Automatic Input Failover 2 9 Analog Gain 2 10 Digital Gain 2 10 L R Balance 2 10 Output Menu 2 10 Stereo Encoder Menu 2 11 MPX Processor Style 2 11...

Страница 35: ...heduled Event 2 20 Setting System Time 2 21 SNTP Simple Network Time Protocol 2 21 Sound Menu 2 22 FM Sound Adjust 2 22 AGC Depth 2 22 Compression 2 22 Density 2 23 Low Warm EQ 2 23 Mid High EQ 2 23 L...

Страница 36: ...1HD_Guru_x_x_x exe where x_x_x denotes the software version number Then Double click on this file and the installer will start followed by the welcome screen shown below Clickon IAgree andtheinstaller...

Страница 37: ...he controls are and right click A popup menu appears Mouse over the word Hardware on this menu and another popup appears with the item Devices at the top of the list Select Devices and the Devices dia...

Страница 38: ...bit Windows dependent and therefore dependent on the host PC be ing used After determining the IP address that you wish the FM 531HD to use enter that address in the FM 531HD s Hardware IP address fie...

Страница 39: ...ng PC and FM 531HD s network settings must be configured to place them both on the same subnet Although the network subnet can be any one that is valid both local and remote devices must be on the sam...

Страница 40: ...rts open too If the GUI Is Connected But the Meters and Analysis Displays Don t Work Occasionally a network or internet service provider will block UDP traffic When that happens the GUI will connect t...

Страница 41: ...desktop taken off the screen and or closed by way of the fa miliar Windows controls at the extreme top right Guru GUI may also be resized on the desktop as desired by dragging its borders Descriptions...

Страница 42: ...nalog input exceeds 48dBFS The Digital indicator lights if there is a valid AES signal present at the digital input above 48dBFS In this example Digital is the active input green indicator Automatic I...

Страница 43: ...ckground on the selection tab Note that the smallest increment of delay time adjustment is 100 microseconds COARSE ADJUST SLIDER FINE ADJUST SLIDER Slider only 500 mS Slider only 0 9 mS Slider plus Sh...

Страница 44: ...NC connectors are carrying the standard unbalanced composite stereo signal at the same time the XLR outputs are carrying balanced line level composite stereo This feature has distinct advantages when...

Страница 45: ...agencies The regulation governing this is commonly referred to as ITU R BS 412 7 and the primary aim of controlling maximum MPX power is to reduce adjacent channel interference by lowering the averag...

Страница 46: ...rear panel BNC and XLR connectors when the Output Mode is set to MPX in the Output Configuration screen The TX 1 and TX 2 controls also adjust the modulation levels of the Baseband192 output Currentl...

Страница 47: ...d preset name is satisfactory press the Save button to commit it to memory noting that unless chosen otherwise it will be stored in the FM 531HD s next available open preset slot Preset Library Functi...

Страница 48: ...then clicking the Edit option at the top of the Preset Library dialog box to reveal the Lock Preset Unlock Preset options Note that these are user level lock options and therefore cannot be used to o...

Страница 49: ...d If it is not press its button to highlight it Press the B A button This will copy the contents of QSave buffer A to QSave buffer B Now the contents of both A and B buffers are identical Change some...

Страница 50: ...d Input Output Settings Change With Preset is checked all of the system settings stored within a preset will be applied when that preset is taken In the above example two presets saved as identical ot...

Страница 51: ...e Control On the top right corner of Guru GUI is the headphone volume control slider To adjust the headphone volume slide the fader right to increase volume and left to decrease it Note The headphone...

Страница 52: ...e Remember This Password check box in the dialog is checked the GUI stores the password on the local PC If you do not check the check box you will be asked for the password each time you connect remot...

Страница 53: ...ent the Long Term Rotation routine should be used Creating a Long Term Rotation Schedule Adding a new event in the Long Term Rotation scheduler works in a similar manner The Long Term Rotation entry w...

Страница 54: ...Name Location 129 6 15 28 time a nist gov Maryland 129 6 15 29 time b nist gov Maryland 132 163 4 101 time a timefreq bldrdoc gov Colorado 132 163 4 102 time b timefreq bldrdoc gov Colorado 132 163 4...

Страница 55: ...and purpose of the controls The following is an explanation of what each FM Sound slider control does again keeping in mind that the AGC Depth and Compression slider are shared between the FM and HD...

Страница 56: ...the control either side of 0 increases or decreases the factory equalization settings In general setting the control to lower numbers reduces on air bass while moving it to higher numbers increases it...

Страница 57: ...es the factory equalization settings In general setting the control to lower numbers reduces on air bass while moving it to higher numbers increases it Mid High EQ The Mid High EQ control adjusts how...

Страница 58: ...ren t run so high as to cause them to run out of headroom Good engineering practice dictates that levels arriving from the studio or STL should be peaking between 20dB and 12dB on the input meters and...

Страница 59: ...all of the metering and analysis displays The check boxes allow you to pick the metering and analysis you want to view Also there is an option for which processing path you want the analysis to displ...

Страница 60: ...down menu FFT Displays the spectral output of the FM or HD processing paths after processing The FM display includes any pre emphasis being used in order to present an accurate view of the signal actu...

Страница 61: ...eal what the pre emphasized and clipped audio looks like E vs F This display represents the RMS Loudness generated in each band of the FM or HD path s 31 limiter bands The E vs F display has a submenu...

Страница 62: ...it managed the audio spectrum We made the SDR meter very easy to interpret the longer the blue bars the more dynamic range there is between the peak amplitude and its RMS loudness level inside each of...

Страница 63: ...tems Devices Displays the Devices dialog where the GUI is configured to communi cate with FM 531HD hardware On Line Mode Shows or changes the On Line status of the GUI Event Scheduler Opens the Event...

Страница 64: ...mic Displays Region 3 9 Frequency Domain Graph 3 9 The FM 531HD Graphical Interface Operation 3 9 Metering and Analysis 3 12 Control Area Region 3 14 Input Setup Menu 3 15 Input Source 3 15 Input Sign...

Страница 65: ...31 Band Drive 3 28 31 Band Limiter Sidebar 3 28 Threshold 3 29 Attack 3 29 Release 3 29 Lookahead Limiter 3 29 Limiter Enable 3 30 L R Linked 3 30 Final Limiter Drive 3 30 Limiter Threshold 3 30 Attac...

Страница 66: ...ontroller 3 39 Pilot Injection 3 40 Pilot Phase 3 40 Stereo Mono 3 40 SCA 1 2 Gain 3 40 TX 1 Level 3 40 TX 2 Level 3 40 Analog Output Type 3 41 Composite MPX 3 41 Left Right 3 41 Left Right De Emphasi...

Страница 67: ...cking Presets 3 50 How to View Preset Changes 3 51 Devices 3 51 Quick Save QSave 3 52 Title Bar Region 3 53 Status 3 53 Device 3 53 Preset 3 54 Notes on Online and Offline Working 3 54 Accessing Menu...

Страница 68: ...will be installed under Program Files Wheatstone FM531HD After installation select the shortcut in the Windows Start menu to start the Pro GUI program To configure the FM 531HD network connection a b...

Страница 69: ...of the graphics used You need about 15MB of space on the hard drive for the GUI software and presets The PC s LAN interface NIC should be 100baseT 100MHz capable for best performance The Really Remote...

Страница 70: ...of the way of the busiest DHCP addressing However it s always wise to check with your local friendly network administra tor to determine what static IP address is open and safe to use Sometimes the l...

Страница 71: ...e GUI may be minimized on the desktop taken off the screen and or closed by way of the familiar controls at the extreme top right Descriptions of the features and functions of the GUI will follow diff...

Страница 72: ...uitive friendly and easy to navigate and interpret in spite of the many number of controls the user has access to well over 350 Each of the processing section s screens has a graphical area where not...

Страница 73: ...oints between the first two that you highlighted will turn back to blue If you then grab the line between these points with the mouse again left click and drag you can move the entire line connecting...

Страница 74: ...ck to flat and you may move it up and down again with the mouse this time as a whole To review Group Adjusters Gangs the blue dots between two highlighted red points into a com monly behaving entity U...

Страница 75: ...en a new graphics window to access the analy sis features by clicking on the Analysis button in the sidebar region The analysis window is a separate window In true Windows fashion the analysis window...

Страница 76: ...o decide to minimize the display by choos ing which panels you want to monitor The default is the I O metering on top the analysis in the middle window and the gain reduction meters in the bottom wind...

Страница 77: ...osed to using the scroll wheel the resolution of the control variation can be increased made finer by holding down the keyboard s Ctrl key while adjusting the control as above OR In most cases you can...

Страница 78: ...audio input If enabled an option for WheatNet IP may also be selected The currently selected input is shown by a red check mark In the example above the input selected is DIGITAL with the AES EBU opt...

Страница 79: ...the right or left The Digital Input Gain can be adjusted over a range of 12dB to 36dB This knob controls both the AES and WheatNet IP input gain L R Balance Static level errors in Left Right channel b...

Страница 80: ...ble and unnecessary subsonic energy from the audio signal prior to it being processed By removing this energy processing is cleaner and modulation energy is not wasted by transmitting sounds that will...

Страница 81: ...boxes below the band that is being adjusted 2 The second method of adjusting the equalizers is by directly manipulating the actual curves on the graphical screen below using the mouse See the next pag...

Страница 82: ...right move as well as adjust the curve s level Boost or Cut above or below the 0dB reference line up or down move Clicking on the small tent underneath see red arrow and holding the left mouse button...

Страница 83: ...the medium and long term sound of the processor is quite stable as program elements and incoming audio levels wander about Without the contribution of the SST the AGC and Compressor sections would not...

Страница 84: ...in reduction display Note that there is no harm in generating more or less control depth as long as one understands that more control depth affords greater long term control of audio levels and less c...

Страница 85: ...ings can cause the SST to continuously try to correct for minute behavioral errors within the five band AGC Likewise very large Window Size settings will allow large AGC errors to go uncorrected Setti...

Страница 86: ...ost cases the need for the processor to be at the studio so it can be accessed is a thing of the past We also feel that if the levels in your plant are properly calibrated there should be no need for...

Страница 87: ...console A pre processor also sustains program audio somewhat to get the most out of the decay effect in a reverb unit Just like adding an AGC to enhance levels to a Ratings Encoder the same steps shou...

Страница 88: ...Ooze is selected and the audio input falls below the AGC Gate Threshold rather than the gains of the bands holding they will slowly return towards 0dB This setting may be useful for formats that cont...

Страница 89: ...Any further decoupling at the point allows the outer bands to wander around too much causing an unnatural spectral buildup on some material AGC Backoff The AGC Backoff adjusts the processing balance...

Страница 90: ...an make the audio sound constricted Conversely settings slower than 30 50ms can prove to be ineffective and can make the 31 band limiter work harder than it needs to Compressor Release This control de...

Страница 91: ...amount of input signal ap plied to the 31 band limiter less drive creates a more gentle sound while still controlling peaks Higher settings make the sound more aggressive by increasing short term den...

Страница 92: ...Because of the way the 31 band limiter works there is a lot of leeway with attack and release times and these controls have been set so that the end user doesn t drive the car off the cliff Basically...

Страница 93: ...eds to reduce the signal to control peak excursions Final Limiter Drive This control drives the output of the 31 band limiter into the final peak limiter Care should be taken to monitor the FINAL mete...

Страница 94: ...erating undesir able intermodulation artifacts Its primary purpose is to allow the thumps of kick drums and other percussion instruments to sound natural in their percussiveness The algorithm operates...

Страница 95: ...S Frequency The VBMS Freq control tunes the VBMS algorithm s frequency of operation from 80Hz to 300Hz with the program energy that is not passing through the algorithm time aligned for coincidence re...

Страница 96: ...grees to compensate for this anomaly FM LIMITER MENU The 31 band FM Limiter screen contains the controls necessary for fine tuning the sound of the FM output and adjusting its peak control method Thes...

Страница 97: ...ttack time settings are between 30 and 10ms Longer attack times are possible for frequencies below the VBMS frequency setting Overall longer attack times will cause the look ahead limiter to work hard...

Страница 98: ...e Hard setting has a transfer function occupying approximately 1dB of transition amplitude The waveform control is fairly abrupt and generates a fair amount of low order harmonics however we eliminate...

Страница 99: ...gnal AES3 Digital DeEmph When checked this option applies de emphasis to the FM digital outputs The type of de emphasis is determined by the pre emphasis selected If no pre emphasis is selected this b...

Страница 100: ...Ctrl key to achieve finer control STEREO ENCODER MENU TheStereoEncoderscreencontainsthecontrolsrequiredtoconfiguretheFM 531HD s internal DSP based precision stereo generator MPX Processor Style The FM...

Страница 101: ...n the listening environment When the L R signal goes away during a receiver blend the perceived audio level drops and the larger the amount of L R present when such a blend occurs the more noticeable...

Страница 102: ...y fooled we provided a small amount of tweaking near the 0dB reference level just in case To prevent accidental activation of the BS 412 Power Controller one must Enable the controller first even befo...

Страница 103: ...Mono by selecting the desired oper ating mode with this switch SCA 1 2 Gain Inputs applied to the SCA connectors are digitized at 192kHz Prior to being digitized the signals are high pass filtered at...

Страница 104: ...ating need in the field Left Right The male XLR outputs and the female BNC connectors assigned to TX 1 and TX 2 carry line level audio In the case of the XLR outputs the audio is electronically bal an...

Страница 105: ...rols and other system controls associated with those functions The following are considered to be FM 531HD SYSTEM or global parameters which are saved with presets but not restored when presets are ta...

Страница 106: ...e is no visible metering data Unless one can successfully convince the ISP to allow unsolicited UDP traffic on their network doubtful the solution is to utilize VPN Tunneling which en capsulates all p...

Страница 107: ...ypes are created through the generation of access codes for those user types Examples SupposeAccessCode0000iscreated with Preset Takes being the only box checked Thismeansthatauserwhich has been assig...

Страница 108: ...the Status window at the top of the Pro GUI Status Indicators Temp WhentheTempindicatorisgreen theoperatingtemperature inside the FM 531HD is satisfactory When it is red the temperature is too high Th...

Страница 109: ...tion area of the Event Scheduler window The Weekly Rotation window will open as shown on the right 2 On the left column select the days that the preset should be selected Any combination of check boxe...

Страница 110: ...e Network Time Protocol if desired Alternately time can be synchronized to the PC that is running the Windows based GUI In this instance time updates will occur upon successful connection to the GUI o...

Страница 111: ...ust the headphone volume slide the fader right to increase volume and left to decrease it Note The headphone outputs of the FM 531HD are driven by Na tional Semiconductor LM675 power operational ampli...

Страница 112: ...direct means of comparing presets It is important to remember to save the present settings as a preset before invok ing others or they will be lost Note also that you can only Take presets that are al...

Страница 113: ...Presets Presets stored on the FM 531HD may be locked by the user to prevent inadvertent overwriting renaming or deletion This is accomplished by opening the Preset Library by clicking on the Li brary...

Страница 114: ...ed with a RED background indicates a parameter that is different between the preset running on the hardware and the preset that has been highlighted Parameters which are not highlighted have the same...

Страница 115: ...ighlighted If it is not press its button to highlight it Press the B A button This will copy the contents of QSave buffer A to QSave buf fer B Now the contents of both A and B buffers are identical Ch...

Страница 116: ...nd directly reflects an FM 531HD Offline The GUI and FM 531HD are disconnected Trying The GUI is attempting to find the FM 531HD on the LAN and connect to it Pending The GUI has found the FM 531HD and...

Страница 117: ...en highlighted Parameters which are not highlighted have the same values between the two presets Notes on Online and Offline Working Often it will be required that the Pro GUI act directly and instant...

Страница 118: ...d That is done under the Hardware option covered in a moment Choose Skin Brings up the Choose Skin dialog box In some GUIs there are multiple skins available which allow the user to pick different col...

Страница 119: ...forming updates to the FM 531HD make sure an auxiliary processor is available for when FM 531HD needs to be rebooted after the upgrade as there will be 15 20 seconds of silence until FM 531HD reboots...

Страница 120: ...unningonthemotherboard Presets Menu Items The Presets menu tree may be accessed by right clicking anywhere on the main FM 531HD Control Panel Take Brings up the Take Preset dialog box Save Brings up t...

Страница 121: ...ng A 13 Thump Rumble Bottom A 13 Punch Boom Tubby Warm A 14 Mud A 14 Honk A 15 Whack A 15 Fuzzy Tinny A 15 Crunchy Edgy A 15 Sibilance A 16 Treble Bright Open A 16 Finally A 17 Using The Factory Lock...

Страница 122: ...page A 2 FM 531HD May 2013 A P P E N D I C E S Appendix A General Specifications A 3 Contents...

Страница 123: ...djustment Ranges Gain Adjustment 12dB to 36dB Gain Adjustment Resolution 0 5dB Gain Calibration Again control setting of 0 0 aligns an external 0dBFS signal with the FM 531HD s 0dBFS internal referenc...

Страница 124: ...00ms AGC Band Coupling 0dB to 6 0dB in 0 5dB steps mid to high 0dB to 12 0dB in 0 5dB steps mid to low Compressor Attack 3mS 100mS Compressor Release 50mS 1000mS 1 second AGC Mixer 6dB Boost Cut at 50...

Страница 125: ...z 300Hz Multiband Threshold 6dB relative to Drive Multiband Attack 10ms to 100ms Multiband Release 3ms 100ms Pre Emphasis Flat 50 S 75 S FM Diversity Delay OFF to 10 seconds Diversity Delay Coarse Res...

Страница 126: ...or EMI suppressed IEC male Operating Temperature 0 to 50 degrees C 32 to 122 degrees F Alarm sensor activates at 50 degrees C All specifications subject to improvement or change without notice Presets...

Страница 127: ...iated GPI port to create a Logic High and may be either momentary or latching as desired Voltages are applied between the appropriate GPI pin and Common with the GPI pin being the most positive voltag...

Страница 128: ...page A 8 FM 531HD May 2013 A P P E N D I C E S Appendix B FM 531HD GPI Interface A 9 Contents...

Страница 129: ...p issues when connected to external equipment Each of the GPI inputs is current limited by a 475 ohm internal resistance The LED device inside the optoisolators is rated at a maximum forward current o...

Страница 130: ...sons a voltage in excess of 48VDC is NOT recommended to be applied to the GPI interface Applied Voltage to GPI External Resistance 3 3 Volts None 5 0 Volts 330 Ohms 6 0 Volts 470 Ohms 7 5 Volts 820 Oh...

Страница 131: ...Common Audio Processing Terms A 12 Background A 12 Audio Terms and Wheatstone Processing A 13 Thump Rumble Bottom A 13 Punch Boom Tubby Warm A 14 Mud A 14 Honk A 15 Whack A 15 Fuzzy Tinny A 15 Crunchy...

Страница 132: ...s muddy is not usu ally used in a positive sense while warm on the other hand often means the sound has a pleasing low end See the confusion here The terms themselves the ones that we use to describe...

Страница 133: ...s allows the sound to be very open there s a term and loud and clean and without the harsh unnatural re equalization generated by limiters with fewer bands the ones found in conventional processors Th...

Страница 134: ...rol being left in the On position PUNCH BOOM TUBBY WARM The sound of bass punch and boom usually fall in the range of 70Hz to 150Hz Tubby on the other hand usually falls between 150Hz and 300Hz Band 2...

Страница 135: ...mething happening higher up in the audio spectrum Both fuzzy and tinny live between about 1 200Hz and 2 000Hz One of the best ways to manage either is to broadly and slightly reduce equalization in th...

Страница 136: ...ds so unnatural it tends to stick out like a sore thumb Excessive sibilance can be the result of too much high end boost or too much final clipper drive Sibilance tends to be most prevalent in the 4 0...

Страница 137: ...HD while still being quite clean and open Operating the AGC and Compressor with slower attack and release times and making some minor tradeoffs in loudness will push perceived quality off the charts w...

Страница 138: ...P P E N D I C E S Appendix D Using The Factory Lock Utility A 19 Background A 19 Installation A 19 Using the Utility A 20 Confirming Factory Lock Unlock Is Operational A 21 Removing The Factory Lock...

Страница 139: ...her hand when presets are Factory Locked the GUI is not normally allowed to overwrite or delete those presets from the processor s hardware because the GUI s preset library utility does not have permi...

Страница 140: ...speed of the host computer Using The Utility STOP ALL WHEATSTONE PROCESSING GUI S MUST BE CLOSED BEFORE RUNNING THIS UTILITY There are four files installed into the Factory Lock utility s folder Theo...

Страница 141: ...will open as before Highlight ing a preset in the list and right clicking on it should reveal that there is a new option in the list Factory Lock Preset Whenever Factory Lock Preset is visible the GU...

Страница 142: ...remove the Factory preset permissions from the GUI To do this run the utility again pointing it to the same GUI installation folder used previously and instead of clicking on UN LOCK click on LOCK ins...

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