Studio Technologies StudioComm 760-01 User Manual
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Studio Technologies StudioComm 760-01 User Manual

Central controller and control console
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for Surround
Model 760-01 Central Controller and
Model 77 Control Console
User Guide
Issue 5, December 2020
This User Guide is applicable for systems consisting of:
Model 760-01: serial number M760-01-00151 and later with
software version 4.20 and higher and FPGA version 4.15 and higher;
Model 77: serial number M77-00151 and later with software version 4.20 and higher
© 2020 by Studio Technologies, Inc., all rights reserved
www.studio-tech.com
50245-1220, Issue 5

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Summary of Contents for Studio Technologies StudioComm 760-01

  • Page 1 Model 760-01: serial number M760-01-00151 and later with software version 4.20 and higher and FPGA version 4.15 and higher; Model 77: serial number M77-00151 and later with software version 4.20 and higher © 2020 by Studio Technologies, Inc., all rights reserved www.studio-tech.com 50245-1220, Issue 5...
  • Page 2 This page intentionally left blank.

  • Page 3: Table Of Contents

    Installation ..............9 Configuration ..............16 Operation ..............37 Technical Notes ............44 Specifications ...............48 Appendix A—Connection Pin-Out Charts ..... 50 Appendix B—Sync Input Sources ........ 51 Appendix C—Downmix Formulas ........ 52 Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 3...

  • Page 4: Revision History

    Revised specifications to reflect final audio performance measurements. Issue 2, January 2015: • Text clarifications. • Reflects final product nomenclature (Model 760-01/Model 77). Issue 1, May 2014: • Initial release (as Model 76D-110/Model 77). Issue 5, December 2020 Model 760-01/77 User Guide Page 4 Studio Technologies, Inc.

  • Page 5: Introduction

    And to Studio Technologies has addressed these make installation simple, the Model 760-01 needs with the StudioComm for Surround provides power for all connected Model 77 Model 760-01 Central Controller and the or Model 71 units.
  • Page 6 AC mains To/from Digital Sync input Models 77 & monitor outputs input input C and digital stereo inputs A & B 71 Control Consoles Remote control inputs Issue 5, December 2020 Model 760-01/77 User Guide Page 6 Studio Technologies, Inc.
  • Page 7 LFE content before routing the sum to the rectly to the Model 760-01, with an accept- subwoofer output. able range of 100 to 240 V, 50/60 Hz. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 7...
  • Page 8 This helps to emphasize the fader surround and stereo monitor outputs. Issue 5, December 2020 Model 760-01/77 User Guide Page 8 Studio Technologies, Inc.

  • Page 9: Installation

    (or only) Model pability, allowing virtually any digital audio 77 Control Console. A cable is supplied to signal to be connected. A signal connected Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 9...
  • Page 10 BNC connector on their input and a 3-pin connected to stereo input C. However, the male XLR connector on their output. signal does pass through the sample rate Issue 5, December 2020 Model 760-01/77 User Guide Page 10 Studio Technologies, Inc.
  • Page 11 3-pin male XLR connector will be used. digital audio signal source that is post-SRC In this case the + terminal would go to and input delay in the signal chain. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 11...
  • Page 12 Word clock is a digital signal using a sync signal. that is locked in phase and frequency to the sample rate of the associated digital Issue 5, December 2020 Model 760-01/77 User Guide Page 12 Studio Technologies, Inc.
  • Page 13 D-subminiature (DE-9F). Connector uses 4-40 threaded inserts for locking with mating plug. Figure 7. Connections between Model 760-01 and Model 77 and Model 71 Figure 6. Connections for Remote Control Inputs Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 13...
  • Page 14 Model 77’s required current in amperes). installing multiple Model 77 units. Remember to include the resistance in both the DC + and DC – wires when Issue 5, December 2020 Model 760-01/77 User Guide Page 14 Studio Technologies, Inc.
  • Page 15 Refer ware loads into the Model 760-01’s main to the Technical Notes section of this user logic device. After just a few seconds initial guide for details. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 15...

  • Page 16: Configuration

    • Sync Input Termination reflect configuration changes as they are • Audio-Synced-to-Video Sample Rate made. Issue 5, December 2020 Model 760-01/77 User Guide Page 16 Studio Technologies, Inc.
  • Page 17 Model 71. All other configuration param- might be special cases where this resource eters are stored in the Model 760-01. isn’t desired and it can be disabled. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 17...
  • Page 18 The slope of the low-pass and high-pass fil- channel has been selected for soloing will ters associated with bass management can the subwoofer output remain active. Typi- cally the only reason why the post-bass Issue 5, December 2020 Model 760-01/77 User Guide Page 18 Studio Technologies, Inc.
  • Page 19 48 kHz will be appropriate, holding the configuration button locat- but rates from 32 to 192 kHz are available. ed on the Model 77’s back panel. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 19...
  • Page 20 SPL can be configured Overall Display Mode over a range of 70.0 to 100.0 dB in 1.0-dB The Model 77’s 4-digit numeric display steps. In many applications selecting a Issue 5, December 2020 Model 760-01/77 User Guide Page 20 Studio Technologies, Inc.
  • Page 21 The exact technical formula for how signals, allowing compensation for delays the Model 760-01 handles the surround to that may be present on associated video stereo downmix function can be selected Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 21...
  • Page 22 C signal routed to L and R will al-purpose function that’s effectively used be reduced (attenuated) by 6 dB. An alter- by numerous users of Studio Technologies’ nate setting allows the attenuation level to StudioComm for Surround products. But there are application-specific situations 3 dB.
  • Page 23 A that don’t offer a means of “trimming” the small button is located on the back of each input sensitivity of individual channels. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 23...
  • Page 24 LEDs will respond accordingly. The device address must be selected so as not to con- flict with the device address of any other Issue 5, December 2020 Model 760-01/77 User Guide Page 24 Studio Technologies, Inc.
  • Page 25  Press and hold the configuration button for 2 seconds to enter or exit the configuration mode. These LEDs will light alternately when configuration mode is ac- Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 25...
  • Page 26 Post-fader stereo monitor output can be enabled. Note: The Model 77’s device address is the only parameter stored in the Model 77. All other parameters are stored in the Model 760-01. Issue 5, December 2020 Model 760-01/77 User Guide Page 26 Studio Technologies, Inc.
  • Page 27 Bass management high-pass filter slope 24 dB-per-octave. Bass management crossover frequency 80 Hz. Mute/solo pre-bass management mode. Note: Bass management capability only available at sample rates of 44.1, 48, 88.2, and 96 kHz. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 27...
  • Page 28 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz. Default: Sync source is L/R of currently selected input. Sync input terminated. Audio-synced-to-video sample rate 48 kHz. Issue 5, December 2020 Model 760-01/77 User Guide Page 28 Studio Technologies, Inc.
  • Page 29 The 5-second button-press delay is a safety feature ensuring that the reference level will not be accidently changed. To permanently store the new value, you must still exit the configuration mode. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 29...
  • Page 30 SPL. the reference level in dB SPL, and auto reference level off. Default: Attenuation display mode selected. 85.0 dB SPL reference level. Auto ref level off disabled. Issue 5, December 2020 Model 760-01/77 User Guide Page 30 Studio Technologies, Inc.
  • Page 31 Press and hold the Dim button to display and select the dim level, remote mute all, and remote dim. Default: 20 dB dim level. Remote mute all enabled. Remote dim enabled. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 31...
  • Page 32 C channel level change –6 dB when surround to stereo downmix function active. LFE level change full attenuation when surround to stereo downmix function active. Pre-fader surround monitor outputs pre-downmix. Issue 5, December 2020 Model 760-01/77 User Guide Page 32 Studio Technologies, Inc.
  • Page 33 –12.0, at which point the display will show – – – –. Default: 6.0 dB channel pop solo up offset level. –6.0 dB channel pop solo down offset level. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 33...
  • Page 34 48 kHz sampling rate. The value is scaled up or down for other sample rates. Default: Input delay 0 ms for both A and B. Issue 5, December 2020 Model 760-01/77 User Guide Page 34 Studio Technologies, Inc.
  • Page 35 The range is –12.0 to 12.0 in 0.5-dB steps. Default: 0.0 dB post-fader surround monitor output level offsets. 0.0 dB post-fader stereo monitor output level offsets. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 35...
  • Page 36 Model 77 to device address A1. If another connected unit is already configured for address A1, normal system operation will stop. Note: The 5-second button-press delay is a safety feature ensuring that the factory defaults will not be accidently restored. Issue 5, December 2020 Model 760-01/77 User Guide Page 36 Studio Technologies, Inc.

  • Page 37: Operation

    Model 71 Control Consoles that have been to have a sample rate of 44.1, 48, 88.2, or connected. Two system functions can also Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 37...
  • Page 38 Four buttons and one rotary control are refer to Appendix C at the end of this user associated with the post-fader surround guide. and stereo monitor output functions. The Issue 5, December 2020 Model 760-01/77 User Guide Page 38 Studio Technologies, Inc.
  • Page 39 Whatever path the post-fader operation will resume. surround and stereo monitor outputs take to reach the reference level value, it will cause the reference level LED to flash! Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 39...
  • Page 40 (reference level mode is not active), level. Whenever the rotary level control Issue 5, December 2020 Model 760-01/77 User Guide Page 40 Studio Technologies, Inc.
  • Page 41 Multiple channels can be muted display systems. During normal operation or soloed at the same time. The LED of the StudioComm system the active input Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 41...
  • Page 42 B is selected. Press the button to change the setting. The display shows the currently selected input delay in milliseconds. Figure 10. Solo mode and input delay settings Issue 5, December 2020 Model 760-01/77 User Guide Page 42 Studio Technologies, Inc.
  • Page 43 A con- control signals can be connected to the figuration parameter, previously described Model 760-01 and then configured for Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 43...

  • Page 44: Technical Notes

    If during normal operation the sync source function as selected by other Model 77 and changes from one valid rate to another a Model 71 units. Issue 5, December 2020 Model 760-01/77 User Guide Page 44 Studio Technologies, Inc.
  • Page 45 Model 77 and tinues to be displayed the Model 760-01 connected Model 760-01 software versions: must be returned to the factory for service. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 45...
  • Page 46 (sync) signal and, Issue 5, December 2020 Model 760-01/77 User Guide Page 46 Studio Technologies, Inc.
  • Page 47 Model 77 or Model 71 units are again connected. The control consoles will go through their standard power-up sequence and then normal operation will resume. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 47...

  • Page 48: Specifications

    Type: balanced AES3 (110 ohms, 5 Vpp) Mounting: one space (1U) in a standard 19-inch Connector: 25-pin female D-subminiature rack (DB-25F), AES59-2012 compliant Weight: 3.6 pounds (1.6 kg) Issue 5, December 2020 Model 760-01/77 User Guide Page 48 Studio Technologies, Inc.
  • Page 49 4.10 inches deep (10.4 cm) Weight: 1.7 pounds (0.8 kg) Weight: 0.8 pounds (0.4 kg) Specifications and information contained in this User Guide subject to change without notice. Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 49...

  • Page 50: Appendix A-Connection Pin-Out Charts

    D-subminiature (DE-9F). Connector uses 4-40 threaded inserts for locking with mating plug. Connections between Model 760-01 and Connections for Remote Control Inputs Model 77 and Model 71 Issue 5, December 2020 Model 760-01/77 User Guide Page 50 Studio Technologies, Inc.

  • Page 51: Appendix B-Sync Input Sources

    720p/23.98 Hz 1080p/24 Hz 720p/24 Hz 1080p/25 Hz 720p/25 Hz 1080p/29.97 Hz 720p/29.97 Hz 1080p/30 Hz 720p/30 Hz 1080psf/24 Hz 720p/50 Hz 1080psf/23.98 Hz 720p/59.94 Hz 720p/60 Hz Model 760-01/77 User Guide Issue 5, December 2020 Studio Technologies, Inc. Page 51...

  • Page 52: Appendix C-Downmix Formulas

    C = (0.707 or 0.5)L + (0.707 or 0.5)R + (0.707 or 0.5)C + (0.5 or 0.35)LS + (0.5 or 0.35)RS + (0 or 0.5)LFE Issue 5, December 2020 Model 760-01/77 User Guide Page 52 Studio Technologies, Inc.

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Studiocomm 77

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