What causes that howling sound in PA systems?

FromBrainStuff

Start listening View podcast show

What causes that howling sound in PA systems?

FromBrainStuff

ratings:

Length:

2 minutes

Released:

Jan 13, 2016

Format:

Podcast episode

Description

A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com.A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

Released:

Jan 13, 2016

Format:

Podcast episode

Titles in the series (100)

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

Skip carousel

How does SETI at home work?: SETI -- the Search for Extraterrestrial Intelligence -- is an enormous, global undertaking meant to detect signs of life beyond our solar system. Learn how you can help from home in this podcast from HowStuffWorks. by BrainStuff
4 min listen
How Uninterruptible Power Supplies Work: An uninterruptible power supply protects computers against surges, spikes, sags, and total power failure. Check out this HowStuffWorks podcast to learn more about uninterruptible power supplies. by BrainStuff
2 min listen
How Breathing in a Submarine Work: For air in a submarine to remain usable, three things must happen: The oxygen must be replenished as it is consumed, the carbon dioxide must be removed from the air, and the moisture in human breath must also be removed. by BrainStuff
2 min listen
How Maple Syrup Works: The clear, thin sap of Maple trees must be boiled down to create maple syrup -- it takes about 30 to 40 gallons of sap to create one gallon of syrup. Check out this HowStuffWorks podcast to learn more about Maple syrup. by BrainStuff
2 min listen
Do the humps on camels hold water?: The camel's hump is a giant deposit of fat that lets the camel survive up to 2 weeks without food. Learn more about camels in this HowStuffWorks podcast. by BrainStuff
2 min listen
How the Corvette ZR1 Works: The 2009 Corvette ZR1 combines several technical innovations to produce a turbo-charged, eight-cylinder engine. Learn more about the Corvette ZR1 in this HowStuffWorks podcast. by BrainStuff
2 min listen
How does the Nobel Prize work?: Nobel Prizes are highly prestigious, valuable awards that have been given out to visionaries and pioneers in select fields since 1901. Tune in to find out more about the Nobel Prize in this episode of BrainStuff. by BrainStuff
2 min listen
How Gun Silencers Work: The sound of gunfire is incredibly loud, and it is amazing that anything is able to silence a firearm. However, the principle behind a gun silencer is surprisingly simple. Check out our HowStuffWorks article to learn more about silencers. by BrainStuff
2 min listen
What is the Difference Between a Carat and a Karat?: Carats are used for diamonds, while karats are used for gold. Learn more about the difference between carats and karats in this HowStuffWorks podcast. by BrainStuff
2 min listen
How Catapults Works: There are three different technologies that fall into the catapult category: the ballista, the trebuchet and the catapult. Check out this HowStuffWorks podcast to learn more about the differences between catapult technologies. by BrainStuff
2 min listen
How Fever Works: In this podcast, learn what causes a fever and what actually happens to the body when a fever occurs. by BrainStuff
2 min listen
How do British royal titles work?: In this episode of BrainStuff, Marshall Brain gives a detailed explanation of how British royal titles work. by BrainStuff
5 min listen
What causes the banging noise in my home's pipes?: The problem of pipes banging on a wall is often called "water hammer." Check out this HowStuffWorks podcast to learn more about this phenomenon. by BrainStuff
2 min listen
How Perceiving Earth as a Sphere Works: Is there any way that people could know the world is sphere while standing on the earth? Learn more about perceiving earth as a sphere in this HowStuffWorks podcast. by BrainStuff
2 min listen
Marshall Brain's News Roundup: March 18th, 2011: As the nuclear situation in Japan continues to deteriorate, Marshall explores how a similar earthquake could affect the United States. And that's not all: Tune in and catch up on the latest, most fascinating news of the past week in this podcast. by BrainStuff
14 min listen
How Fountains in Rome Work: Built before the invention of electric pumps, fountains in Rome were powered through an ingenious system of gravity, cisterns, and aqueducts. Learn more about fountains in Rome in this HowStuffWorks podcast. by BrainStuff
1 min listen
Why the Sky is Blue?: As sunlight passes through the atmosphere, particles in the air scatter blue light more efficiently than any other color in the light spectrum, creating a blue sky. Learn more about the sky and light in this Brainstuff podcast. by BrainStuff
2 min listen
How long can a germ live in a room?: How long can a germ last outside the body? It depends. Tune in to this podcast from HowStuffWorks.com to find out how different germs fare outside the body. by BrainStuff
2 min listen
How Car Thermostats Work: Any liquid-cooled car engine has a thermostat that blocks the flow of coolant to the radiator. Learn how the thermostat works to reduce wear, deposits and emissions in this podcast from HowStuffWorks.com. by BrainStuff
2 min listen
What is an MRE?: An MRE -- or meal ready to eat -- contains precooked, sterilized food originally made to nourish soldiers. Check out this HowStuffWorks podcast to learn more about the retort packaging that makes MREs possible. by BrainStuff
1 min listen
When I pay for groceries by check, where does that check go?: When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode. by BrainStuff
5 min listen
Is it possible to get free land and free houses in the U.S.?: In the 1860s, the Homestead Act provided free land to settlers. Is there anything like that in 2010? In this episode, Marshall explains why and how it's possible to acquire land and houses for free -- or really cheaply -- in the United States today. by BrainStuff
6 min listen
Anti-reflective Coatings: Anti-reflective coatings are used to eliminate any light reflective off the back of the lenses. Learn about anti-reflective coatings in this BrainStuff episode. by BrainStuff
4 min listen
How gas pumps work: Next time you're filling up your tank at a gas station, ask yourself this: how does the nozzle know when the tank is full? Learn more about gas pumps in this HowStuffWorks podcast. by BrainStuff
2 min listen
How a GFCI outlet works: A normal 120 volt outlet in the US has two vertical slots and a role hole centered below the slots -- the outlets with a pair of red and black 'test' and 'reset' buttons are known as GCFI outlets. Check out this HowStuffWorks podcast to learn more. by BrainStuff
1 min listen
How the Virtual First-Down Line Works: Virtual first down lines are used to indicate where play resumes in football -- but how do they work? Listen in as Marshall Brain explains how the technology superimposes a virtual line in this podcast on HowStuffWorks.com. by BrainStuff
3 min listen
Are florescent bulbs really more efficient?: Customers are increasingly choosing long-lasting alternatives to traditional incandescent lights. But are florescent lightbulbs really more efficient than traditional lightbulbs? Listen in and find out in this podcast from HowStuffWorks.com. by BrainStuff
1 min listen
Marshall Brain's News Roundup: April 15th, 2011: With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. by BrainStuff
17 min listen
How Activated Charcoal Works: If you look on the label of a water filter, you'll often see the filter contains activated charcoal -- but what exactly is this stuff? Tune in as Marshall Brain explains the nature of activated charcoal in this podcast from HowStuffWorks.com. by BrainStuff
2 min listen
How do they measure sea level?: Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff. by BrainStuff
4 min listen

More Episodes from BrainStuff

Skip carousel

BrainStuff Classics: Do Dogs Get Embarrassed When We Put Them in Costumes? by BrainStuff
5 min listen
If a Stop Light Is Stuck on Red, What Can You Do? by BrainStuff
4 min listen
How Did Benedict Arnold Become So Infamous? by BrainStuff
11 min listen
How Do Pallas's Cats Work? by BrainStuff
6 min listen
What's the Difference Between Sociopathy and Psychopathy? by BrainStuff
10 min listen
Are Humans Built to Drink Milk After Childhood? by BrainStuff
4 min listen
How Should You Escape a Sinking Car? by BrainStuff
6 min listen
How Do Cherry Blossom Trees Work? by BrainStuff
10 min listen
How Did Bessie Stringfield Shape Motorcycle History? by BrainStuff
7 min listen
How Do Squirrels Organize Their Hoards? by BrainStuff
7 min listen
BrainStuff Classics: What Makes Some Lakes Explode? by BrainStuff
6 min listen
BrainStuff Classics: Why Is Palm Oil in So Many Things? by BrainStuff
6 min listen
Where Did the Word 'OK' Come From? by BrainStuff
9 min listen
Should You Beware the Ides of March? by BrainStuff
8 min listen
How Do Fruit Bats Work? by BrainStuff
7 min listen
What Are Meat Sweats? by BrainStuff
4 min listen
How Did Susan B. Anthony Work? by BrainStuff
7 min listen
BrainStuff Classics: What Happens When Elevator Cables Break? by BrainStuff
5 min listen
BrainStuff Classics: How Can I Donate My Brain to Science? by BrainStuff
3 min listen
Why Is the Ocean Different Colors? by BrainStuff
7 min listen
Are You Picturing the Right Brachiosaurus? by BrainStuff
9 min listen
How Does Critical Race Theory Work? by BrainStuff
12 min listen
Is Oxytocin Really A Love Drug? by BrainStuff
7 min listen
How Do Pistol Shrimp Work? by BrainStuff
7 min listen
BrainStuff Classics: Why Did London Once Have a Train for the Dead? by BrainStuff
5 min listen
BrainStuff Classics: Why Does Beer Foam Last Longer Than Soda Foam? by BrainStuff
4 min listen
How Did Maya Angelou Work? by BrainStuff
9 min listen
How Does Scurvy Work? by BrainStuff
9 min listen
Do Cows Really Pollute As Much As Cars? by BrainStuff
7 min listen
Where Does Earth's Water Come From? by BrainStuff
7 min listen

Related podcast episodes

Skip carousel

Talkin' Husker wideouts and The Wheel of Topics returns: Reviewing Husker wide receivers and hitting on a variety of Husker questions with The Wheel of Topics by Husker247: A Nebraska athletics podcast
43 min listen
Episode 00: Introduction by Super High Yield Anesthesia!
5 min listen
EP145: How To Repurpose Content For More Impact and Revenue with CEO of Repurpose House Shaina Weisinger by The DigitalMarketer Podcast
31 min listen
Minisode - The Anatomy of Voice and Singing by The Anatomy Nerd Podcast
10 min listen
Ep16 Building a FOH Mix Pt 1: Gain Staging and Routing by Live Sound Bootcamp
76 min listen
We used AI to clone the voice of one of the Music Ally team – and used it to create an AI-powered podcast version of our Daily Bulletin newsletter: here's the result by Music Ally Focus
13 min listen
Podcast Support System by The Sunday Night Army
22 min listen
PES 212: Chris’s Goody Bag: I overview 9 recent ‘s from Oct. 23 - Nov. 11 (see list below). You can sign up to receive Daily Goody’s in your email every day or a weekly roundup. . Daily Goody posts that I discussed in this episode: Be sure to... by The Podcast Engineering Show
26 min listen
Metaphors Matter: Mechanics or Doctors, part 1: "Metaphors are how we make sense of the world." - Shaun Hotchkiss In this week's episode we discuss the usage of metaphor in our world...we typically default to "mechanical" metaphors when referencing our organizations, but would we be better... by Agile Uprising Podcast
64 min listen
034 - Filters: As the name implies, a filter will either allow or reject frequencies from passing through and onto your radio In this session, we discuss: High Pass & Low Pass Filters Band Pass & Band Reject Filters Common filter terms Why we use filters... by Scanner School - Everything you wanted to know about the Scanner Radio Hobby
22 min listen
FULLY LOADED by BEYOND THE TRYLINE
87 min listen
ROUTINE TASK - R.T. by BEYOND THE TRYLINE
12 min listen
The Buzzsprout Affiliate Marketplace + Targeted Ads in Podcasting (Good or Bad?) by Buzzcast
44 min listen
226. David Scorteccia, Founder Of Sonnect & Inventor Of The Sound Bullet by Signal To Noise Podcast
67 min listen
3 IN, 3 OUT: What if…? It's time for a position group checkup (Offense): Clinton, Phil and Brandan assess the current health of the Seahawks offensive roster by Seahawks Forever w/ Dan Viens
38 min listen
349: Steal My Podcast Promo Strategy To Grow Your Podcast Fast: This week we’re wrapping up the solo series on how to regroup and get unstuck in your side hustle for quarter two, this time we’re talking podcast promo. In this episode I share: How to grow your brand awareness to a wider audience The... by Side Hustle Pro
15 min listen
165. Bob McCarthy and Josh Dorn-Fehrmann, Meyer Sound by Signal To Noise Podcast
93 min listen
Hifi On YouTube: Our Take: In this week's episode, Darren and Duncan discuss a new trend in hifi audio: videos of hifi systems playing music on YouTube. Now, if that sounds preposterous to you, you might not be alone. The guys explain why it's an interesting development in this hobby, and imagine where it could go in the future. by The Hifi Podcast with Darren and Duncan
98 min listen
#98 | 3 Ways To Turn Podcast Guesting Rejections In Opportunities For Massive Podcasting Growth by Why Your Podcast Isn't Growing: A Get More Listeners Podcast For Podcasters
11 min listen
What makes a successful podcast? by Podcasting Q&A
6 min listen
Meltwater Unveils Podcast Monitoring: The Jason Falls Show - A Marketing Podcast by Winfluence - The Influence Marketing Podcast
9 min listen
What is a Startup Ecosystem? by Startup Hustle
49 min listen
Introducing Reset: Host Arielle Duhaime-Ross explores why–and how–tech is changing everything. by The Weeds
47 min listen
Are florescent bulbs really more efficient?: Customers are increasingly choosing long-lasting alternatives to traditional incandescent lights. But are florescent lightbulbs really more efficient than traditional lightbulbs? Listen in and find out in this podcast from HowStuffWorks.com. by BrainStuff
1 min listen
Ep11 Building a Monitor Mix Pt3: Sends on Faders and The PAs Affect on the Mix by Live Sound Bootcamp
27 min listen
244 - A Warning About Trunk Systems: This is a warning about trunk systems. There are issues that can arise when trying to setup your scanner to monitor trunked radio traffic. Today’s podcast contains some hints to help you keep your sanity when programming your scanner for large... by Scanner School - Everything you wanted to know about the Scanner Radio Hobby
33 min listen
Audiophiles and the Perfect Sound by TechStuff
40 min listen
Design and Collaboration by On-Chain Experiments
14 min listen
The Myth Of The Genre-Agnostic Hifi System: Have you noticed that your system shines on some genres of music and not others? Have you noticed that the albums that sound best on your setup don’t jump out as clearly on your friend’s system? Because of so many variables and system synergies going on, the idea of one setup being perfect for all kinds of music is questionable, if not nearly impossible. In this episode, the guys tackle the notion of genre-specific stereo setups. by The Hifi Podcast with Darren and Duncan
84 min listen
S39E20 - Regenerative Development, Permaculture, and Ecovillage Design, with Zola Rose by Human Capital Innovations (HCI) Podcast, with Jonathan H. Westover, PhD
38 min listen

Discover this podcast and so much more

What causes that howling sound in PA systems?

What causes that howling sound in PA systems?

Description

Titles in the series (100)

More Episodes from BrainStuff

Related podcast episodes