AUDIO VISUAL SYSTEMS GENERAL STANDARDS & GUIDELINES
AUDIO VISUAL SYSTEMSGENERAL STANDARDS & GUIDELINESPrepared ForUniversity of Nebraska-LincolnPrepared By Information Technology Services Audio Visual Design BuildRevision 2Date Prepared 27Mar17Contact Greg.Carstens@unl.eduP. 402-472-0396
Table of ContentsSection 1 - Version Revision History . 6Section 2 - Introduction . 6Section 3 - Definitions . 6Section 4 - Compliance and References. 74.1 Industry standards, guidelines, and best practices (InfoComm): . 74.2 Quality Management is guided by The Association for Quality in Audio Visual Technology(AQAV, and that association’s standard) . 74.3 Acoustical guidelines for classrooms, consult: . 74.4 Intelligibility of sound systems and public address systems:. 74.5 Further Reference . 8Section 5 - Physical Requirements for AV Systems . 85.1 Equipment Racks . 85.2 Lecture Benches . 85.3 Ventilation. 95.4 Room Layout . 95.5 Projection Surfaces . 95.5.1 Single Screen Projection . 95.5.2 Dual Screen Projection . 95.5.3 Projectable Dry Erase Wall Coverings (No formal screen) . 105.6 Display Devices. 105.6.1 Multimedia Projectors . 105.6.2 Multimedia Projector Ceiling Mount . 105.6.3 Flat Panel Displays. 105.6.4 Flat Panel Display Mounts. 105.7 AV Control and Switching . 115.7.1 AV Control . 115.7.2 AV Switching . 115.8 Audio . 115.9 Source equipment . 125.10 Video Conferencing. 125.10.1 Hardware Video Conferencing Solutions . 125.10.2 Web Based Collaboration Solution . 125.11 Lighting. 13pg. 3March 27, 2017
5.12 Lecture Capture . 135.13 External AV Input Plates. 136 Network and Security Infrastructure Requirements . 137 Audio Visual Systems Cabling Installation Specifications . 137.1 Cabling. 137.2 Cable Labeling . 147.3 Cable specifications. 148 ADA Compliance and Integration. 158.1 Hearing Augmentation . 158.2 Mounting Heights for Visually interactive devices . 159 System Programming . 159.1 Manufacturer Specific . 159.1.1 AMX Programming . 159.1.2 AMX Resource Management Suite Enterprise (RMS) Connectivity . 169.1.3 AMX Web Configured Devices . 169.1.4 BSS Audio Architect. 169.1.5 ClearOne . 169.2 Hardware Administrative Rights . 169.3 AV Integrator Programming Bidder Qualifications . 1610 Audio Visual System Installation Process. 1710.1 General Guidelines . 1710.2 Commissioning . 1710.3 Inspection and Testing . 1710.4 Operator Training. 1810.5 Project Documentation . 1810.6 Warranty, Service Support . 1810.7 Additional Documentation. 1911 Recommended Hardware List. 1911.1 Display Options . 1911.1.1 Projector . 1912.1.2 Projector Mounts . 1912.1.3 Projection Screens Surface mounted. 1912.1.4 Projection Screens Recessed. 1912.1.5 Commercial Display. 2012.1.6 Commercial Touch Screen Display . 20pg. 4March 27, 2017
12.1.7 TV Display Options . 2012.1.9 Display Mount Options . 2012.2 AV Control & Switching Options . 2012.2.1 AV Controller. 2012.2.2 User Interfaces . 2012.2.3 Video Switching. 2012.3 Audio . 2112.3.1 Audio Processor . 2112.3.2 Amplifiers . 2112.3.3 Microphones . 2112.3.4 Speakers . 2112.3.5 Hearing Assistance . 2112.4 Video . 2112.4.1 Document Camera . 2112.4.2 Source Devices . 2212.5 Rack Cabinets/Frames. 2212.5.1 Free Standing Rack . 2212.5.2 Wall Mount Racks . 2212.5.3 Power Conditioner/Distribution . 2212.6 Network Devices . 2212.7 Video Conferencing. 2212.7.1 Video Conferencing Codecs . 2212.7.2 Video Camera HDMI/USB PTZ. 2312.7.3 Video Camera USB only . 2312.8 Other . 2312.8.1 Lecterns . 2312.8.2 Whiteboard or Whiteboard Material. 23pg. 5March 27, 2017
Section 1 - Version Revision HistoryVersion Details Date ByVersion012Change DescriptionDraft DocumentRevision with IPBaseT additionsApproved by ITS LeadershipDate01May1624Feb1727Mar17ByGCGCHTSection 2 - IntroductionThe purpose of this publication is to ensure that all audio visual facilities are designed and constructedto the standard as set out by UNL Information Technology Services, Audio Visual Design Build (ITS AV).These guidelines will be used as the standard to which the facilities will be designed or updated overtime. Where these standards cannot be met, consultation during the design stage, and prior to thecommencement of any construction works, with UNL Information Technology Services staff, must beundertaken.This publication details the physical, programming and security requirements for the audio visualequipment to be used in classrooms, meeting rooms, PC labs and lecture auditoriums. UNL ITS AVnotionally endorses the INFOCOMM, AV/IT Infrastructure Guidelines for Higher Education as acompanion document subject to the specifics of the UNL ITS Audio Visual Specifications.Section 3 - DefinitionsITS – UNL Information Technology Services, Audio Visual (AV) design staff or authorized representative.ADA – American’s with Disabilities ActAFF – Above Finished FloorANSI – American National Standards InstituteAudio Visual Integrator – Any person or company commissioned by UNL to perform work on UNL audiovisual systems other than UNL ITS AV staff.Dante – Digital Audio Network Through Ethernet is a combination of software, hardware, and networkprotocols that deliver uncompressed, multi-channel, low-latency digital audio over a standard Ethernetnetwork using Layer 3 IP packetsDSP – Digital Sound ProcessorEDID – Extended Display Identification Data is a data structure provided by a digital display to describeits capabilities to a video source (e.g. graphics card or set-top box). It is what enables a modern personalcomputer to know what kinds of monitors are connected to itHDBaseT – promoted and advanced by the HDBaseT Alliance, is a consumer electronic (CE) andcommercial connectivity standard for transmission of uncompressed high-definition video (HD), audio,power, home networking, Ethernet, USB, and some control signals, over a common category cable(Cat5e or above) using the same 8P8C modular connectors used by Ethernetpg. 6March 27, 2017
HDCP – High-bandwidth Digital Content Protection is a form of digital copy protection developed byIntel Corporation to prevent copying of digital audio and video content as it travels across connectionsHDMI – High-Definition Multimedia Interface is a proprietary audio/video interface for transmittinguncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliantsource device, such as a display controller, to a compatible computer monitor, video projector, digitaltelevision, or digital audio deviceInfoComm – Trade association representing the professional audiovisual and informationcommunication industries worldwide.IPBaseT – Internet Protocol based connectivity similar to HDBaseT but is able to connect devices overgigabit IP networks instead of dedicated connections.NFPA – National Fire Protection Association (National Fire and Electrical Code)POE – Power over EthernetRU – Rack unit equivalent to 1.75 inches of vertical space in an AV rackSANS – Institute for information security training and information security standardsSDVOE – Software Defined Video Over EthernetTIA – Telecommunications Industry AssociationSection 4 - Compliance and References4.1 Industry standards, guidelines, and best practices (InfoComm):1. INFOCOMM, AV/IT Infrastructure Guidelines for Higher Education2. ANSI/INFOCOMM 1M-2009, Audio Coverage Uniformity in Enclosed Listening Areas3. ANSI/INFOCOMM 2M-2010, Standard Guide for Audiovisual Systems Design and CoordinationProcess(Project Management process)4. ANSI/INFOCOMM 3M-2011 Projected Image System Contrast Ratio5. ANSI/INFOCOMM 4: 2012 Audiovisual Systems Energy Management6. ANSI/INFOCOMM V202.01:2016, Display Image Size for 2D Content in Audiovisual Systems7. AV Design Reference Manual, from INFOCOMM International.8. Audiovisual System Design and Coordination Components, from INFOCOMM International.4.2 Quality Management is guided by The Association for Quality in Audio Visual Technology(AQAV, and that association’s standard)1. AV 9000:2012 Quality Management System Conduit, pathway, and dedicated equipment roomconsiderations2. ANSI/TIA-569B Commercial Building Standard for Telecommunications Pathways and Spaces4.3 Acoustical guidelines for classrooms, consult:1. ANSI/ASA S12.60; Acoustical Performance Criteria, Design Requirements, and Guidelines forSchools4.4 Intelligibility of sound systems and public address systems:1. NFPA 72; National Fire Alarm and Signaling Codepg. 7March 27, 2017
4.5 Further Reference1.2.3.2010 Standards for Accessible Design, Americans with Disabilities ActDavis and Davis, 1987 “Sound System Engineering”Giddings, 1990, “Audio Systems Design and Installation”Section 5 - Physical Requirements for AV Systems5.1 Equipment RacksAudio visual equipment is typically mounted in standard 19-inch racks. Racks must be provided with aminimum clearance to the front, rear and one side of 36 inches unless wall mounted. All equipment,where possible, will have rack ears for mounting. If equipment is not suitable for rack mounting aminimum of a 1RU cantilevered shelf will be provided to appropriately support each piece of equipment.Rack design must allow for only a maximum of 75% fill to accommodate future growth. For example, ifit is a 10U rack, only 7U may be used for design fill.A suitable number of 120V AC rack mounted power conditioners with power overload switches will beprovided as required. Power conditioners will have no more than 80% of load designed so that a 15Aunit will have a maximum 12A load and so on. Load calculations are to be included in with all projectdesigns along with BTU calculations for each rack assembly.Where racks must be ins
7. AV Design Reference Manual, from INFOCOMM International. 8. Audiovisual System Design and Coordination Components, from INFOCOMM International. 4.2 Quality Management is guided by The Association for Quality in Audio Visual Technology (AQAV, and that association’s standard) 1.
765 S MEDIA TECHNOLOGY Designation Properties Page Audio Audio cables with braided shielding 766 Audio Audio cables, multicore with braided shielding 767 Audio Audio cables with foil shielding, single pair 768 Audio Audio cables, multipaired with foil shielding 769 Audio Audio cables, multipaired, spirally screened pairs and overall braided shielding 770 Audio Digital audio cables AES/EBU .
AVIXA, F501.01:2015 "Cable labeling for Audiovisual System (CLAS)" b. AVIXA, F502.01:2018 "Rack Building for Audiovisual Systems" We would also like to thank the University of Nebraska-Lincoln Information Technology Services Audio Visual Design Build team for letting UCCS use their "Audio Visual Systems General Standards &
Connect to the audio connector of a camera if the camera supports audio recording. Note: To make a video backup with audio, make sure the camera which supports the audio function is connected to the video-in channel and audio-in channel. For example, the audio data from audio CH1 will be recorded with the video data from video CH1. 3) AUDIO OUT
Audio-visual databases, along with their accompanying sub-jective scores, represent an essential ground truth for qual-ity assessment research. Over time, a number of audio-visual databases have been published and made available for researchers. Table 1 presents a list of the most impor-tant audio-visual quality databases currently available. For
of audio-visual database for audio-visual speech recognition system, some of most promising work have been summarized as Lee et al. [3] introduced the Audio-Visual speech In a Car (AVICAR) database. It was recorded in a moving car. The framework employed four cameras in a lateral array on the
In this paper we discuss the design, acquisition and preprocessing of a Czech audio-visual speech corpus. The corpus is intended for training and testing of existing audio-visual speech recognition system. The name of the database is UWB-07-ICAVR, where ICAVR stands for Impaired Condition Audio Visual speech Recognition.
Audio visual aids are important in education system. Audio visual aids are those devices which are used in classrooms to encourage teaching learning process and make it easier and interesting. Audio visual aids are the best tool for making teaching effective and the best dissemination of knowledge.
to speech recognition under less constrained environments. The use of visual features in audio-visual speech recognition (AVSR) is motivated by the speech formation mechanism and the natural ability of humans to reduce audio ambigu-ity using visual cues [1]. In addition, the visual information provides complementary features that cannot be .
