Audio, IT/AV

No UC And Collaboration Without Good Audio

The laws of physics break for no one.0 87
Audio

Audio In Today’s Commercial AV Applications

The time has come for a loudspeaker revolution.0 211
Audio, Business

Finding The RF Sweet Spot For Wireless Intercoms

Can wireless equipment be migrated outside the UHF band?0 235
Audio, Installations, Video

Mission Accomplished

Denver’s new Mission Ballroom brings events and hospitality to a new level.0 1565
Audio, IT/AV

Making Milan Together

An update on the networking protocol.0 457
Audio, IT/AV

IoT Devices And Pro Audio

The next big thing is happening now.0 509
Audio, Video

Auditorium AV: Networked And Immersive

An overview of modern applications for presentation.0 570
Audio

Using Microphones In Theatrical Environments

A primer on key considerations for effective stage mic’ing.0 872
Audio, Video

The Journey Toward A Distraction-Free Open Office

Expect to hear a lot more about biophilia in the coming years.0 739
Audio, House Of Worship, Installations

Visual Wonder, Audio Challenge

Church of the Presentation’s expansion is a great success, despite acoustical obstacles.0 1115
Audio, Digital Signage

High Flyin’

Austin-Bergstrom International Airport undergoes extensive upgrades.0 1489
Milan
Audio, IT/AV

An Introduction To Milan

The new AV network protocol for the industry, by the industry.0 2720
Audio

Quieter Is Healthier

Sound absorption can be a critical component of promoting wellness.0 850
Audio

Audio Networking In Smaller Spaces

You don't need a huge venue to realize big benefits.0 1004
Audio

Maintaining Masking

Looking after the equipment...and the effect.0 1233
Audio

The Next Two Years Under The New Wireless Spectrum

Looking at potential effects on wireless microphones and communications devices. 0 2496
Audio

A Word In Your Ear

Although I already have something along the lines of 200 technical audio and acoustics books, I am always on the … 0 1364
Audio

Sound In Space

Taking inspiration from the arts.0 1956
Audio

Playing Zone

The reality is that, to compete in the hospitality space, integrators have to “play zone.” 0 1717
Audio

Auctioned-Off 600MHz Spectrum Already Being Occupied

As a result of the FCC's incentive auction in April 2017, wireless microphone systems that operate in the auctioned spectrum (617MHz to 652MHz and 663MHz to 698MHz) must cease operation in the auctioned-off spectrum.0 1327
Audio

Louder Isn’t Necessarily Better

The needs of hard-of-hearing people are complex and multifaceted.0 1820
Audio

Considerations For Critical Wireless Communications

Technologies, applications and the RF landscape are all evolving.0 777
Audio, Business

Voice Control Capabilities Enter The Workplace

Once-fantastical dreams are coming closer and closer to reality.0 1619
Audio

The Case Of The Distorted Audio

Trust your instincts…and your established procedures!0 1966
Figure 1. Projected coverage cones for ceiling loudspeaker system.
Audio

Under Cover

There’s more to obtaining even loudspeaker coverage than meets the eye. Part 10 1853
Audio

Occupational Hazards

The effect that audiences and people can have on sound system performance. Part 20 1838
Figure 1.
Audio

No Time For Complacency

Reserved channel for wireless microphones is pending before the FCC.0 1032
Audio

Reversing The ABCs Of Acoustics

Using sound masking as a design platform.0 2856
Audio

The Evolution Of Sound Masking

From a “necessary evil” to a critical, but challenging, solution.0 2415
Audio

Look Who Finally Showed Up!

A look at acoustically delayed audio.0 1494
Audio

Occupational Hazards

Exploring the effects audiences can have on sound-system performance. Part 10 2707
assistive-listening
Audio

‘Invisible’ No Longer

Staying current on assistive-listening legislation and hearing-loop installation standards.0 1540
Audio

Scaling The Wall Of Sound

The legendary sound system is one stop on a long, strange road.0 5643
Audio

Train Crash: Has Audio Training Come Off The Rails?

Education is the art of drawing out information, not ramming it in!0 2165
Audio

Minority Interests

Are we designing our sound systems for all of our listeners?0 1510
Audio

Latency In Sound System Design

Keeping latency to a minimum can help you avoid common pitfalls.0 1446
Audio

Consistent Conference Commissioning

Calibrated calls can champion confabulation.0 1275
Audio

Interesting Times (For Wireless Audio)

The incredible shrinking spectrum.0 1496
Figure 1. STI plot and statistics for a platform sound system.
Audio

Where’s The Point? Part 7

Averages and statistics: What was the number you wanted?0 1443
Audio

Sounds Bad? Sounds Good? Who Knows The Difference Anymore?

Sound has been trivialized for convenience. That is a Disaster, with a capital “D,” for our industry.0 2533
Audio

Objective Analysis: Determining The Causes Of A Sound System’s Poor Performance

During my work, I am often asked to look at systems and advise why they are not performing as well … 0 786
Audio

Battle Of The (Frequency) Bands

The recently concluded auction will have a profound effect on wireless users.0 1794
One Powell AT&T Store in San Francisco
Audio, Installations

Psychology Of Sound

Diving deeper into sound strategy for retail.0 3712
Audio

Sound Absorption: The Material Facts

Where’s The Point? Part 60 2521
Audio

Bluetooth For Assistive Listening In Theaters

Piece of cake? Not quite.0 4637
Audio

Signal-To-Noise Ratio: When It Really Counts

AV9000 Checklist Item Under Test: 6.2.7: The electrical noise levels for all audio channels are “xx”dB (“55dB” recommended for most … 0 2420
Audio

Reverberation Time: Where’s The Point? – Part 4

<a href="https://www.soundandcommunications.com/accurate-audio-acoustic-measurements/">Part 1</a><br/><a href="https://www.soundandcommunications.com/accuracy-wheres-point-part-2/">Part 2</a><br/><a href="https://www.soundandcommunications.com/sound-decay-wheres-point-part-3/">Part 3</a>0 1753
Bluetooth For Commercial AV
Audio

Bluetooth For Commercial AV

Fulfilling growing demand for the de facto consumer audio connectivity solution.0 3115
Audio

InfoComm’s First Audio Standard Gets A Facelift

Any day now (if it hasn’t already happened by the time you read this), InfoComm will be releasing a new … 0 2485
assistive-listening
Audio, House Of Worship

Assistive Listening For Houses Of Worship

WiFi audio, loops, RF and IR are options.0 3928
Audio

Commissioning Theme Parks & Attractions

Can you hear me now?0 1580
Figure 1. Family of RT curves for a large reverberant auditorium; note the lower times of the EDT curve.
Audio

Sound Decay: Where’s The Point? – Part 3

“Sound decay” sounds like a disease that decrepit concert halls might suffer from, but that’s not what I mean. The … 0 3372
Audio, Installations

NCAA’s Coors Center Upgrades Audio

PA system replaced after 35-year run.0 3794
Audio

Software Problems: A Glitch In The Matrix?

Troubleshooting decentralized, open-architecture DSP mixers.0 1769
induction loop
Audio

Induction Loop Technology: Gotcha!

You're not going to get away with brute forcing this technology.0 2881
Figure 1. Analog linear voltage and non-linear dB scales.
Audio

Accuracy: Where’s The Point? – Part 2

Last month, I discussed the differences between accuracy, precision and resolution when making some voltage/frequency measurements. In audio, however, we … 0 1857
Figure 1. Digital meter readout.
Audio

How Accurate Are Audio & Acoustic Measurements?

Where’s The Point? Part 10 2176
Audio

Zoning In On Sound Masking

Need trumps cost.0 2255
Audio

Cutting Through The Noise

The architectural trend toward open offices provides a unique opportunity for integrators.0 1793
Figure 1
Audio, Video

HDBaseT 101 – Part 1

Nearly 40% of integrators are already deploying or working with HDBaseT technology, and that number is expected to grow.0 4812
Audio

STIPA & Intelligibility

The ‘Do you understand the words that are coming out of my mouth?!’ test. 0 2555
fcc
Audio

Wireless Mics & The FCC Incentive Auction

Important facts on the FCC Incentive Auction for AV integrators.0 3725
Figure 1. TV set with rear-facing loudspeakers; furniture mounted in room corner.
Audio

Nice Picture. Pity About The Sound!

Why TV sound is so poor.0 2688
Figure 1. Measured RT and EDT using a dodecahedron loudspeaker compared with RT and EDT with the new sound system as the source.
Audio

Chesapeake Energy Arena Measurements & Analysis

Marsh/PMK International was initially engaged to study the existing acoustical conditions and sound system performance at Chesapeake Energy Arena as … 0 1839
listen-technologies-assistive-listening-man-at-stadium
Audio

The Assistive Listening Playoffs

Which system is best suited to stadiums and arenas?0 2120
Audio

Hearing Loops Get The Vote

Hearing-impaired individuals prefer this assistance system.1 3096
Energy Masking
Audio

Energy Masking: Reducing Distraction & Achieving Privacy

Improving methods for reducing distraction and achieving privacy.0 2067
Audio

Lobbies Getting Louder

Hotel lobbies have become hipster hangouts and alternative music venues. Properties like the Ace Hotel locations in New York, Pittsburgh, … 0 1959
Figure 1. Two very different sounds with identical dBA values.
Audio

Single-Number Metrics

What’s Their Value?0 2270
Audio

How Loud Should A System Be?

Most clients are not comfortable speaking in terms of “dBs.”0 2410
pag-nag feedback solution
Audio, AV Police Squad

Stop Feedback At Its Source!

PAG-NAGs and why they rule.0 3110
Figure 1. Unbalanced auditorium RT characteristic and target curve.
Audio

A Question Of Balance: Good Acoustics Need A Balanced Approach

Part of my job is to review the work of others or proposals from contractors and installers. This can be … 0 2289
Audio, AV Police Squad

Setting Mic Levels To Combat The ‘Yelling Crawler’

I had the privilege of watching an IT guy setting microphone levels the other day. It was a difficult room … 0 2987
Average threshold of hearing at 20kHz versus listener age.
Audio

Sound: It’s Not Just About Listening

All day, every day, and all night, every night, we are surrounded by and exposed to sound. Unlike our sense … 0 2208
Audio

The Role Of Audio In Themed Entertainment

Many of you know that famous George Lucas quote that “Sound is 50% of the movie-going experience.” For those of … 0 2233
Audio

Good Reference Materials For Acoustics & Audio System Design Are Key

Over the years, I have collected a technical library of around 200 books about audio and acoustics, and it’s my … 0 3602
Figure 2. Sub response shaped by applied DSP where each pair has increasing delay applied from the inside pair on the C/L to pairs 2, 3 and 4, moving toward the outsides of the horizontal array.
Audio

For The Love Of Mic…Put That Subwoofer Somewhere Else!

Using prediction software can put subwoofers where they should be. Subwoofers are the red-headed stepchildren of audio integration. They’re always … 0 3577
Hannah Boyd Photography 
Audio

Subs Are Key To Church Audio Installation

A challenging installation took place recently at the 800-seat Dan River Church in Danville VA, where a subwoofer solution resulted … 0 2407
Audio, Industry Pioneers

Industry Pioneers #3: Dr. Harvey Fletcher And The Rise Of Applied Physics

This article was originally published in the October 2000 issue of Sound & Communications. By the end of the 19th Century, … 0 2384
1) basic mixer, (2) DSP with matrix mixer, (3) zone processor, (4) production mixer.
Audio

Same Name, Different Purpose: The Apples And Oranges Of Audio Mixers

“You’re selling me a digital mixer for my conference room that is several times more expensive than the one I … 0 3278
Audio

Acoustic Echo Cancellation (AEC) Explained

One of the key features on DSP units is Acoustic Echo Cancellation (AEC). This feature is not usually found in … 0 7868
Audio

Silence Of The Cams

Whereas I often wear a set of noise-canceling headphones on a plane, I have always wondered how effective they are. … 0 1840
mixer slider - house of worship
Audio

RS232 Overload

Checklist Item Under Test: 3.4.17: The port and processor are of an adequate size and buffer given their intended function. … 0 1841
Club Neo in Zurich is a dazzling new club/bar/restaurant on the ground floor of an upscale high rise.
Audio

Acoustic Design: Beautiful, Effective & Invisible

Dramatic leaps in acoustic design and technology have enabled acousticians to provide clients with a myriad of options for tuning … 0 3903
Audio, AV Police Squad

Audio: It always depends.

I always teach my colleagues, my students…heck, even my 2 and 5 year olds, that you should set the microphone … 0 2722
The Heathkit CR-1
Audio

What Were You Doing In The 1950s?

I’m going to take a journey off the usual beaten path this time. There won’t be any discussions about wireless, … 0 2605
Headphone-Frequency-Response
Audio

Ear Peace

In last month’s column (“Sex & Audio”), I mentioned how there are distinct differences between male and female sound preferences … 0 2237
audio feedback
Audio

The Figure-Eight Feedback: Why ceiling mics and mix-minus shouldn’t mix.

Checklist Item Under Test: 6.31: Confirm that the speech reinforcement system is stable (no feedback) for the entire talker and … 0 4097
Audio

Sex & Audio: A Clear Case Of Discrimination!

Various studies have been carried out over the years that show clear differences between how males and females listen and … 0 3421
The Albuquerque City Council Chamber. Photo: Stephen Frazier
Audio

Hearing Loops: Assistive Listening Systems That Are Actually Used

After years of neglect, the federal government recognized the special auditory needs of the hard of hearing in the Americans … 0 2892
Audio

Gymnatorium Absorption: The Sweet Spot

Although acoustic absorption is not usually the focal point of an install, it should not be discounted. You may not … 0 2698
Audio

Aid Memoire! A Follow up to ‘Loop Gain’

It would seem that my September and October 2015 discussions have sparked more interest than almost any other I have … 0 1815
Audio

Condenser/Dynamic Mics

“When I look at the proposal for this system, I see there are multiple mic options available. Some of it … 0 2360
Audio

Trust: Building it is Hard and Keeping it is Harder

Checklist Item Under Test: Report Signature: “I hereby certify that, in accordance with specification in product, practice and performance, this … 0 1954
Audio

Sound Advice: On The Level Part 2: Peak Demand

Last month, I discussed the various sound level meter frequency weightings and integration times, and how these can affect the … 0 1935
Audio

Achieving An Effective Sound Masking Curve

Recent design trends make today’s facilities ever more dependent on sound masking for speech privacy and noise control. Because a … 0 4854
Audio, Industry Pioneers

Industry Pioneers #2: Bell, Edison And The Dawn of Telephony

This article was originally published in the June 2000 issue of Sound & Communications. It should come as no surprise that … 0 2179
Audio

The A, B, C To Z Of Sound Level Measurement

The other day, I was discussing signal-to-noise ratio (SNR) with a colleague and bemoaning the fact that many research papers/articles … 0 4573
Audio, House Of Worship, IT/AV, Video

Producing Mega Experiences With Scott Mirkin

Forty large LED screens brought Pope Francis closer to audiences in Philadelphia. Although event producers have successfully used digital media … 0 3316

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