Audio-Visual and Paging Systems
Installing, configuring and tuning building audio-visual systems, followed through Cobalt Line Systems' Ottawa AV crew on a school, an office floor and a warehouse: sound and decibels, microphones and gain structure, 70 V and low-impedance loudspeaker systems, paging zones and priorities, life-safety interfaces, Dante and AV-over-IP networks, HDMI and HDBaseT, display sizing, meeting rooms for video calls, control, testing and tuning, and a school gym with assistive listening.
LVT-310 12 lessons · 4 h 19 min ▶ Video lessons coming soon
Offered by HSM University · Low Voltage Systems
This is the Canadian version of this course. See the American version.
What you'll learn
- Describe the building blocks of AV systems, the spaces they serve, and the roles of owner, designer, integrator and other trades on an AV project
- Use frequency, wavelength and decibels to add sound levels, predict level at distance and set speech targets above background noise
- Select and connect microphones, use balanced lines and correct grounding, and set a clean gain structure through mixers and DSPs
- Wire low-impedance and 70 V loudspeaker systems, sum taps, size amplifiers with headroom and check lines with an impedance meter
- Lay out ceiling speakers for even coverage and set up paging zones, priorities, schedules and ambient noise compensation
- Connect AV systems to life-safety systems at the demarcation point, carry emergency messages and verify intelligibility with STI
- Bring Dante, AVB and AES67 devices online on a network configured for audio, with correct clocking, routing and bandwidth
- Calculate video data rates and extend video with HDMI, HDBaseT and AV-over-IP, managing EDID and HDCP and testing every format
- Size displays with the DISCAS method, set mounting heights and projector throw and brightness, and mount displays safely
- Install and test meeting rooms for unified communications, with echo cancellation, automixing, suitable acoustics and camera framing
- Test control systems, size rack heat and power, and tune sound systems with pink noise, equalisation, delay and coverage measurements
- Fit out, tune, test and hand over classrooms and a gym, including assistive listening, life-safety interfaces, training and documentation
Course content
12 lessons · 4 h 19 min total · final exam
- 1 AV systems in buildings 21 min · quiz
- 2 Sound: frequency, level and decibels 21 min · quiz
- 3 Microphones, mixers and signal flow 22 min · quiz
- 4 Amplifiers and loudspeakers: 70 V and low-impedance systems 22 min · quiz
- 5 Paging, background music and zoning 21 min · quiz
- 6 Mass notification and life-safety interfaces 21 min · quiz
- 7 Digital audio networking: Dante, AVB and AES67 21 min · quiz
- 8 Video signals: HDMI, HDBaseT and AV-over-IP 21 min · quiz
- 9 Displays, projectors and viewing geometry 22 min · quiz
- 10 Conference rooms and unified communications 22 min · quiz
- 11 Control systems, testing and tuning 22 min · quiz
- 12 Capstone: fitting out a school gym and classrooms 23 min · quiz
- E Final exam 20 questions
Requirements
Recommended background. You can start any course at any time.
Description
Installing, configuring and tuning building audio-visual systems, followed through Cobalt Line Systems' Ottawa AV crew on a school, an office floor and a warehouse: sound and decibels, microphones and gain structure, 70 V and low-impedance loudspeaker systems, paging zones and priorities, life-safety interfaces, Dante and AV-over-IP networks, HDMI and HDBaseT, display sizing, meeting rooms for video calls, control, testing and tuning, and a school gym with assistive listening.