Home Theater and High Fidelity Stereo Audio
Ed's AV Handbook
Index by chapter and subject
with page links
Batting practice for the audio/video professional and a primer for the novice
Ed's AV Blog & NEWS
Chap 1 AV Terminology
Chap 2 AV Physics
Chap 3 Sound
Chap 4 Video
Chap 5 AV System Sequence
Chap 6 The Room, Speaker, & TV
Chap 7 Acoustical Strategy
Chap 8 Home Theater by Design
Chap 9 Sales Training
Chap 10 Business & Marketing
Chapter 1 AV Terminology
Properly presented stereo audio demonstrations still amaze customers and close sales.
However too many in our industry do not really know what stereo is. And too many do not understand other basic AV terms. Don't be one of them. That's why this chapter matters.
High Fidelity, Monophonic, Stereo, Multi-channel surround, NTSC, ATSC, High Definition & UltraHD.
Multi-channel Mini History
Surround Sound, Dolby, Dolby ProLogic, Digital Dolby & DTS, Multi-channel & BluRay, Dolby Atmos & DTS:X
Chapter 2 AV Physics
This is far from even a high school physics course. This is simply an outline of basic concepts that lay the foundation for the balance of the Handbook. So relax -- catch the wave.
The wave, wavelength, frequency, amplitude, subjective intensity
Acoustical Energy of Sound
Frequency range 20Hz to 20KHz, wavelength, sound pressure level, decibel, loudness
Magnetic fields & electric currents, light & radio, wavelength, brightness, lumen, luminance
The Ear & the Eye
Chapter 3 Sound Reproduction
Chart the path of sound as it is captured by a microphone, filed in a medium and/or wirelessly
transmitted, and reproduced by a speaker.
The Microphone & The Speaker
Recording media, Analog LP record, Analog tape recorder
16 bit 44.1 KHz digital storage.
Files & formats, lossy, lossless, DRM
AM & FM, Accurate Audio Standards and Specifications.
Chapter 4 Video Reproduction
Track light through the prismatic lens of a TV camera as it is converted to electric current
and ultimately re-illuminated on a TV screen.
The View From Our Minds Eye
RGB, The TV camera
Digital Broadcast, MPEG compression, 8VSB, QAM, Satellite distribution, The satellite dish, the LNBF
Home Video History
Networks, CableTV, VCR, Dolby, Laser Disc, Home theater, DVD, BluRay, HD BluRay, UltraHD, Internet streaming
CRT, Rear Projection CRT, Plasma, LCD, Fluorescent & LED back lighting, Quantum dot fix, rear projection LCD,
DLP, rear projection DLP, LYCOS, OLED, IOLED, the Diode, Electro luminescence, SMOLED/PMOLED,
AMOLED, Super AMOLED / WOLED, CLEDIS
Vertical & Horizontal, NTSC, SDTV, EDTV, HDTV, 720p,1080i, 1080p UltraHD, DCI 4K,
HDR (high dynamic range) UltraHD, UltraHD prerequisites HDMI, HDCP, & HEVC
Movie aspect ratios - 1.37:1, wide screen1.85:1, & anamorphic 2.35:1/2.39:1
TV aspect ratios - 4:3, 16:9 or 1.78:1
Anamorphic DVD, Anamorphic Blu-ray?, 3:2 pull down, Blur & judder, LCD 120Hz, 240Hz, & 480Hz,
Back-light scanning, 600Hz sub-field drive, 2500Hz focus-field drive,
Brightness & color, lumen, ANSI lumen, Foot-lambert, Nit, Contrast ratio, dynamic & static contrast,
a contrasting story, ANSI contrast ratio, Gray scale, C.I.E. color, Color space, Color gamut, Color volume,
Bit depth or color depth, x.v.color, Deep color, DCI P3, Gama
The HDR Page The last buzzword page
High Dynamic Range, the Nit, Frame rates, ETOF, HDR 10, Dolby Vision, Phillips Technicolor,
Hybrid Log Gamma, HDMI versions 1.4 thru 2.1
Chapter 5 The AV System Sequence
This chapter confronts the tangled nest of cables found behind a typical cabinet of AV components. It also confronts the controversial subject of high end AV cable and interconnects.
The AV system sequence
Source, preamp/processor, amplifier, speaker &/or TV
Record (tape monitor) Loop, tape loop processing options,multi-room/multi-source, video routes, transcoding.
Cable & interconnects
(confronting a controversial subject)
Noise, resonance, resistance, inductance, capacitance, reactance, and link to a relevant blog.
Plugs & jacks
Analog/digital, single ended, XLR, Toslink, composite, component, S-video, RGB, BNC, DVI, HDMI, USB
Chapter 6 The Room, the Speaker System, & the TV
This is an introduction to a dedicated discipline that can deliver mesmerizing, toe-tapping, wow-inducing, goose-bump, life enhancing experiences.
Digital dominates but analog rules
Digital is the buzz word. But three non-digital elements define AV performance.
Don't forget room aesthetics
Room dimensions, recommended ratios, room modes & their harmonics,
House of mirrors
First reflections, note for the smaller room, uninvited noise, remaining issues, shut the door.
The speaker system
Speaker facts, speaker & listener placement, calculating front left/right locations, the sweet spot.
Speaker & listener placement continued
The center speaker, the rear speakers, note for smaller room, the sub woofer
Define the TV, room lighting, ambient room lighting & color, seating distance, loose ends
Chapter 7 An Acoustical Strategy for the Small Room
A room with a dimension of 56.5 ft or less ... this includes ceiling height ... is an acoustical small room. Yes, it's your room. This chapter outlines how to minimize the compromises of small room acoustics with a mix of well known principles and practical solutions.
The acoustical small room
Acoustical distortion, the small room, room modes, specular reflections
The four acoustical regions of a small room
Region #1 long wavelengths, tactics for region #1,
Region #2 dominated by room modes, peaks and nulls, avoid swells.
The four regions continued
Tactics for 2nd region - recommended ratios, room mode analysis, speaker & listener placement
Region of short wavelengths
Region #3, tactics for region #3
Region #4 - the region of short wavelengths, tactics for region #4 - locate 1st points, absorb, experiment
Noisy loose end, concluding summary.
Chapter 8 Home Theater Sound by Design
There are three fundamental home theater sound designs: High Fidelity, THX, & Custom.
The High fidelity design sets the goal. Custom and THX offer compromising alternatives for uncompromising aesthetic situations.
Chapter 9 AV Sales Training
Take command of your professional life.
Survey the landscape, 4 Ps of marketing, Personal 4P tactical plan
A sale in 5 steps
Meet & greet, qualify, recommend, close, follow up, and implement your plan.
Assess & adjust
To do list, stat score card, stat sheet,
Sales stat dashboard
Stats to charts to conditional prescriptions.
Using the prescriptions
Chapter 10 Business & Marketing
You're an AV expert with the skills and tools to prove it. But taking this step requires another bag of tools. This chapter outlines the essentials of managing a business.
Business Game Plan
Compass heading, appraise the business landscape, forecasting sales.
The Marketing Plan
The Four P's - place, product, price, promote.
9 steps to place or how to choose a brick & mortar location.
A price strategy for AV dealers.
Implement Plan - strategy & tactics
Assess & adjust, The macro glance - profit & loss statement, the balance sheet
The Micro Exam
To Do List, stat counts, convert stats to charts, assess conditions, apply prescriptions
Using the prescriptions.
|Ed's AV Handbook.com
Batting Practice for the AV Pro and a Primer for the Novice.
Copyright 2007 Txu1-598-288 Revised 2018