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What is an Acoustic Transducer

Now then ladies and gentlemen, i have a different excellent headset piece of writing for you to read, i know, you do not have to thank me all, just add a social like to the short article to illustrate your appreciation.
An acoustic transducer is an electrical device that coverts sound wave vibrations into mechanical or electrical energy. They have various practical applications, including sound recording and sound playback. A specialized model, called an ultrasonic acoustic transducer, can be used to measure distance to, as well as the mass of, an object.

headphonesCommon types of acoustic transducers used in sound recording include microphones, headset, and guitar pickups. These create electrical energy when moving parts inside the transducer, such as electrical plates or ribbons, are exposed to sound vibrations. The electrical energy produced inside the transducer is sent first to an amplifier.

The amplifier then sends this energy to its final destination, usually a loudspeaker or recording device. The loudspeaker reproduces the sound at a level that the human ear can hear. A recording device will retain the electrical signal information. The recorder will send the stored signal to a loudspeaker during playback.

An ultrasonic acoustic transducer can be used to measure distance or the mass of an object. The most common type is the piezoelectric acoustic transducer. These include a piezoelectric ceramic element that creates and distributes ultrasonic sound waves.

Sound waves travel to an object from a piezoelectric transducer through material called a couplant. The couplant is usually water. Sound waves bounce off the object and return to the transducer in the form of an echo. The time it takes for these echoes to return to the transducer is used to calculate the distance to the object.

Underwater sound navigation and ranging (SONAR) is a common use of an ultrasonic acoustic transducer. SONAR uses directional beams of sound waves. This enables the SONAR operator to determine the direction and distance to an object.

SONAR systems can be active or passive. An active system sends out sound waves and listens for echoes. A passive system listens for noises made by ships, fish, and landmasses.

An electromagnetic acoustic transducer (EMAT) is another form of ultrasonic transducer. Instead of a ceramic element, an electro magnet is the main component of an EMAT. This is a type of non-contact, or non-destructive transducer. Unlike piezoelectric transducers, EMATs do not need a couplant to carry sound waves. Instead, two electromagnetic fields are generated to disburse ultrasonic waves.

EMATs can easily be used almost anywhere since no liquid is needed. For example, EMATs can be used to check for flaws in underground pipes. A downside to EMATs, compared to piezoelectric transducers, is that EMATs create weaker sound fields.

I Believe

Without giving too much about this earpiece piece of writing, but I found it remarkable and appropriate to what I’m currently doing.

earpieceThe legend of my father started long before I was born.

He died when I was six years old, and even now, 14 years later, his notes remain embedded in the memories and hearts of the musicians and fans he touched.
I was born with the music in me, it was almost like I instinctually sang. I remember being with my dad and watching him play his guitar and closing my eyes, dreaming that one day I, too, would be on the stage singing to the music. Shortly after his death, I became desperate to learn to play the guitar.

I don’t know if it was because it reminded me of him, or I wanted to be like him. All I know is the guitar seemed incredibly important to me, then.
It was Christmas season, and like all families do, my mother and I went to the mall to meet Santa. I told Santa the only thing I wanted for Christmas was to have my daddy back and, looking back, can only imagine how he and my mom felt. At six years old, I had lost so much, so tragically, yet had all the faith in the world that everything was going to be fine.

My mother tried to explain to me that Santa could not make my dad come back, but trying to get a six year old to grasp the concept of death is impossible, and I told her that if I believe in God and Santa, that anything can happen and they could just do CPR on him.
Which may be how I lost all my faith in medicine and God.

My mom finally convinced me to look around the mall for something else Santa could bring me, and we ended up in a music store. The second we walked in I spotted a “my-size” guitar, hanging up high. It was perfect, it had pretty black and blue butterflies around the sound hole.
My mother informed me that she was unable to afford it and I would have to ask Santa. Somehow, Santa managed to bring me that exact guitar, maybe thanks to a short visit with my mom.

Just days after getting the guitar, I had a friend over, playing. Another Christmas present I received that year was a gold vanity set. Freshly built and empty, I returned to the vanity set and spotted a small white thing. I reached back and grabbed it, observing it closely to find its purpose.
It was a guitar pick and on the front it read, “Ball Busters.” I asked my mom about it, and she showed a sense of shock.

“Where did you get this?” She stood before me, shocked and confused. This pick had never been in our home, we moved their before my dad died and there’s no way it could have just showed up.
“I found it on my vanity, did you put it there?”
Learning the pick belonged to my dad made it even more special to me and I always felt a sense of connectedness with him, because of it. Every time I misplace it, it comes back again.

We moved to a new house, I was sure it had been lost. As a nine year old, I wasn’t very responsible and had misplaced it. Months after moving in, I found the pick laying mysteriously on my bed. Over eight years it was lost and found again, which could have been a miraculous accident.

Before moving across the country, I purposely placed the precious pick inside an old jewelry box. Once I arrived at my new home, I realized I had left that jewelry box behind, at it was gone. I grieved for a short time, finally coming to terms with the fact that the pick was gone.

Months after getting settled in, when all was unpacked and undisturbed, I got the urge to download some country music songs. You’d be surprised how you miss something, even country music, in today’s form, and need a reminder of home. So, I downloaded an assortment of songs by a group called Diamond Rio, because I knew I liked a few of their songs.

Deciding to sweep and mop, I put the songs on a play list and clicked “random”.
Within minutes, I was struck by a song I was unfamiliar with.
Every now and then, soft as breath upon my skin –
At this exact moment the pick, out of nowhere – 800 miles away from where it had been lost, once again appeared there to let me know my father was with me.

I feel you come back again, and it’s like you haven’t been
Gone a moment from my side, like the tears were never cried.
There are more than angels watching over me
I believe, I believe
And, I believe.
First half of the story: /viewArticle.jsp?articleId=281474976784875
Song: I Believe
Artist: Diamond Rio

The SIA – Security Industry Authority

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headset. earphonesIf you want to work in security in the UK you will probably need a license from the SIA, or Security Industry Authority, a non departmental government body, established in 2003 under the terms of the Private Security Industry Act 2001 which reports to the home secretary. Some security roles do not require an SIA licenese but the most common security jobs; Manned guarding, which includes: Cash and Valuables in Transit, Close Protection, Security Guards and Door Supervision as well as Public Space Surveillance (CCTV), Key Holding and the Immobilisation, restriction and removal of vehicles all require a compulsory SIA licence.

What is less commonly known is that managers and directors of security companies who might not perform the actual security tasks also need a different kind of SIA license.

Licenses curretnyl cost £245 (Oct 2011) and last for 3 years (except for “clampers” which need to be renewed every year). The current penalty for being unlicensed while performing any of the listed duties above is a maximum of £5000 fin and upto 6 months in prison. You can also face penalties for not having an SIA licence on display when working door supervision for example.

The SIA also runs the approved contractor scheme which is a voluntary quality assurance scheme that measures private security suppliers against independently assessed operational and performance standards. Organisations that meet these standards are awarded ‘Approved Contractor’ status. The penalties for claiming approval when you are not approved are harsher than that for not having an personal license whilst working security, and can be an unlimited fine.

Four Winds Resort and Casino using mototrbo

Without giving too much about this earpiece article, but I thought it interesting and related to what I’m now doing.

headset. earphonesFour Winds Resort and Casino needed a communications system that would enable employees to deliver premium service to guests while ensuring casino security.
MOTOTRBO exceeded these critical requirements, radically expanding capabilities and opening up a range of new opportunities for enhancing security and service levels.

Everything Is Riding on Security and Service

Paying homage to the heritage of the Pokagon Band of the Potawatomi Tribe, the Four Winds Resort and Casino is situated near their ancestral homeland on 52 acres of beautiful terrain in New Buffalo, Michigan. This full-service, around-the-clock leisure complex comprises 135,000 square feet of gaming space, 3,000 slot machines, 110 table games, six restaurants, a hotel, and a 10,000 square foot child care center.

Security is imperative in any gaming environment where unscrupulous individuals may scan wireless communications in an effort to “improve their edge” at the tables and throughout the casino. John Walker, VP of Security at Four Winds, explained that this entertainment center required “a system that could provide security personnel with a separate and secure talk-group as well as capabilities to enable all staff to always be in contact with one another.”

High levels of service are also demanded in this sophisticated gaming environment, and an efficient two-way communications system would enable individual teams within the casino to communicate quickly and efficiently with one another, responding to customer needs and delivering the high-quality service that casino patrons expect. Of particular concern was the need for technicians to monitor the operation of thousands of slot machines and respond to technical problems immediately.

Four Winds required a cost-effective solution that would enable the casino to grow in response to increasing nationwide enthusiasm for gaming.

After considering the options, it was clear that the right solution for Four Winds would be MOTOTRBO, Motorola’s professional digital system that is reshaping the way users think about two-way communications.

With this innovative two-way digital solution, the Four Winds security team has their own talk group, as do IT, maintenance, slot supervision, and many other work teams throughout the casino. Four Winds had originally asked for only four talk groups; however, within months of implementation, the value of talk groups became so dramatically clear that there were soon 15 talk groups divided by department, with the promise of more in the very near future. MOTOTRBO software provides 23 talk-group templates, separated by users, making it possible to cut and paste individual groups as needed.

To ensure consistent, fault-free communications among security staff, the MOTOTRBO system at Four Winds has base station battery back-up as well as critical redundancy built into the system:
if the security repeater needs to be reprogrammed, another repeater immediately moves in to handle the load. Because MOTOTRBO utilizes highly efficient TDMA, four repeaters have the capacity to do the work of eight repeaters, ensuring consistently smooth and cost-efficient communication.

MOTOTRBO seamlessly enhances service. Clearer audio quality provided by digital technology means that all casino and resort personnel are able
to connect with one another and communicate more efficiently, ensuring that customer service issues are resolved on-the spot.

In support of higher service levels, digital radios provide improved battery life: casino and resort personnel receive 12 hours of operation with a standard nickel metal hydride battery – that’s about 40% more operating time than with analog radios. Because batteries are used more efficiently, talk-time is extended, so personnel spend more time serving guests and less time returning to base to recharge their units or pick up fresh batteries.

Unobtrusive service is always preferred, and MOTOTRBO supports discreet communications through such functions as text messaging, which enables personnel to communicate silently with one another. Any phone or computer can send an email to a MOTOTRBO host server application,
which then forwards the text message to designated MOTOTRBO subscriber units, supporting tighter, more coordinated communications management.

In addition, as Walker explains, because security personnel have earpieces that attach to microphones “we can walk and discuss all kinds of issues without disturbing our guests, who don’t get blasted by a loud noise when someone with a traditional radio walks past.”

In emergencies, MOTOTRBO’s emergency signaling capability enables users to pull the whole team together, immediately, to respond to the situation and maintain the comfort and safety of casino guests.

In a resort area, aesthetics are always a consideration, and through a multi-coupler and combiner, it was possible to mount just two antennas on the roof of the casino, minimizing visual interference with the natural beauty of this Lake Michigan property.
Staying Ahead for the Long Run

Four Winds Resort and Casino selected MOTOTRBO, in part, because it was flexible enough to grow with their business. Within months of installation, the system was already growing, with additional repeaters and talk groups being added to meet demand by staff for radios that helped improve customer service and increase casino security.

Walker is confident that this is just the beginning: “I’ve talked to each of the vice presidents that have received these radios, and they’re just ecstatic. MOTOTRBO has helped them handle their departments and their staffing, dispatching people to the right locations whenever they’re needed. Now, we’re up to about 335 radios, and several departments would like more. MOTOTRBO has done so much for us, increasing our efficiency and decreasing response time. The whole system has been a boon for us, and now every department is talking about getting a MOTOTRBO.”

MOTOTRBO – The Gaming Industry’s Ace-in-the Hole
Digital technology enables MOTOTRBO to adapt to a number of different work environments,
seamlessly supporting industry-specific applications, and it has proven to be an exceptionally productive communications tool for gaming and hospitality.
In addition to the applications deployed by Four Winds Resort and Casino, the digital platform enables location tracking via built-in GPS so that the location of field units can be displayed on the dispatcher’s computer screen for more efficient operations and tighter asset management. GPS-based Location Services is just one of MOTOTRBO’s continuing series of remarkable applications – made possible through digital technology – that extend the power of MOTOTRBO, enabling it to be customized to work at maximum efficiency in any environment, in any industry.

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What are Earbuds

I don’t know how you came here because you read it on social media, twitter, facebook, google +, stumble upon or anywhere else. thankyou for coming and I hope you enjoy reading this as much as I did.
Earbuds are headphones, typically made out of a hard plastic material, that fit inside the ear, just outside of the ear canal. These arent the same thing as ear canal walkie Talkie Earpiece, which have a rubber tip and seal within a listeners ear canal.

Several portable music devices, like mp3s and Personal Digital Assistants (PDAs), come with earbuds when the device is purchased. Earbuds are a less expensive alternative to ear canal headphones or other listening devices. Consumers tend to purchase earbuds for their convenience, as they are easier to carry around than other headphones because of their small size.

This style of headphone also tends to be more inexpensive than other kinds, like ear canal headphones, circumaural headphones that fit outside the ears, or the supra-aural headphones that have pads that are placed on top of the ears, rather than around or inside them. Circumaural headphones are typically used in recording studios and supra-aural headphones can still be purchased at some stores, though these kinds of devices have given way to headphones that fit within the ear.

Because of the design of earbuds, there can be a few drawbacks to owning them as opposed to owning another style of headphone. First, the rigid design of earbuds can sometimes make it difficult for them to fit comfortably inside a listeners ear. If theyre too large or too small, they can either slip out of the ear or wont fit inside it at all. Another problem reported by consumers is that because earbuds dont seal the ear canal, the sound quality is muddled through other ambient noises.

Essentially, most earbuds work the same as other headphones and the set-up is relatively simple. Wires move up from the electronic device that is putting out sound, such as an mp3 player. These wires connect to a voice coil. The coil is attached to a cone, which is flexible and plastic. A magnet is attached to the back of the earbuds. When sound passes up through the wires and to the magnet, the voice coil becomes electromagnetic and moves up and down with the sound. The cone then pushes the sound out through the earbud and into the listeners ear.

When listening to earbuds or any other type of headphones, physicians recommend to keep the volume at a reasonable level, as research had proven that prolonged exposure to high noise levels can lead to permanent hearing loss. Prolonged listening to loud noises, including music, puts unnecessary stress on the hairs in the cochlea. This causes permanent damage to the hairs and can eventually lead to hearing loss.

iHome iB75 Earpiece

My basic review of this new earpiece it begins well, looks pretty cool, is simple to run and actually energy efficient, the earpiece is a top quality product. Im pleased I purchased it, read more beneath.

earpieceIt seems silly to hold exercise-focused earphones to a different set of standards than regular earphonesafter all, if the pair sounds good, it could be your all-the-time pair, not just the one you take to the gym. That said, the iHome iB75, a $99.99 (direct) Bluetooth in-ear option, seems particularly suited for the gym, not only because of its water-resistant design, but because its sound signature seems to be purposefully sculpted to bring out the bass and the beats of your exercise playlist. The iB75 could use more treble to balance out the mix, but it offers a secure fit and plenty of controls to manage your mobile device wirelessly during your workout.

The iB75’s design is intended for exercise, and is thus ruggedized to a certain extent, while remaining lightweight. The black earpieces house multiple controls, and if there’s any complaint, it would be that the controls are very tiny, and not the easiest to memorizebut the upside is, of course, the flexibility to control music and take calls with ease, and wirelessly. A red cable runs behind the head, connecting the earpieces to each other, and silicon eartips and fin combinations ensure an extremely secure fit while you’re moving around.

All of the controls are situated on the right earpiece. It has dedicated Volume up/down and Track forward/backward buttons, as well as a Bluetooth pairing button that’s also the Play/Pause and Call answer/end control. The volume controls on the iB75 work independently of the controls on your sound source. It’s unfortunately pretty easy to accidentally press one control when you meant to press anotherskip a track when attempting to adjust the volume, for instance. This is both because you’re blindly navigating the controls, as with any in-ear Bluetooth pair, but also because there are controls on both the top and bottom of the right earpiece. You might accidentally press a control on the bottom panel when placing your thumb and forefinger on the earpieces to make a selection. So, it takes a bit of getting used to, but the inclusion of more controls is always a plusit’s just too bad that some of them couldn’t have been placed on the left earpiece.iHome iB75 inline

The microphone and the micro-USB connection (which has a rubber cover) are also located on the right earpiece. The iB75 ships with a USB charging cable, three pairs of silicon eartips, three pairs of ear fins for a stabilized fit, and a drawstring carrying pouch. iHome estimates a battery life of about 8 hours talk time, 7 hours for music playback, and 100 hours for standby power, but your results will vary depending on how loudly you listen to your tunes.

The pairing process with an iPhone 5s was straightforward and easy. Like most Bluetooth earphones, the annoyance of a flashing blue light will be invisible to you, but in full view for anyone near you whenever you’re paired.

Performance
On tracks with intense sub-bass content, like The Knife’s “Silent Shout,” the iB75 doesn’t distort, even at top (and unsafe) listening levels on both the earphones and the sound source. Lovers of massive, booming bass might be thrilled by the sound signature hereit’s quite powerfulbut if you like some crispness with your booming lows, or you’re seeking a more flat-response pair, you’ll want to look elsewhere. This is clearly an earphone pair meant to accentuate the lows in songs to motivate your workout, not a pair intended for critical listening.

This is immediately apparent when listening to Bill Callahan’s “Drover.” His baritone vocals on this track are given plenty of extra low-end presence, but they lack any real high-mid edge, and the track sounds muddy as a result. The drums on this track also receive a heavy extra helping of bass, and the result is a very unnatural sounding mix. As I said, however, this isn’t a pair designed for analyzing the finer points of the Callahan catalogueit’s designed to bring out the thumping bass lines and beats in music you’re likely to listen to when working out. So if you happen to listen to classical music or folk while you exercise, you’re going to want to find a different pair.

On Jay-Z and Kanye West’s “No Church in the Wild,” the kick drum loop gets a huge dollop of added bass, and the sub-bass synth hits that accentuate the beat are also quite intense through the iB75. Even bass lovers might wish the beat had a bit more high-mid, treble-focused presence to it, howeverthe track sounds powerful, for sure, but a bit muffled.

If you’re seeking a brighter or more balanced mix for your Bluetooth workout experience, consider the Sennheiser MM 100$118.05 at Amazonit’s on-ear rather than in-ear, but ideal for the gym. If you need to stick with an in-ear option, the JayBird BlueBuds X$149.60 at Amazon is a more balanced in-ear option. If you’re primary concern is the exercise-friendly aspect of the design, and you don’t need Bluetooth, the Sennheiser CX 685 SPORTS$54.18 at Amazon is a great option in this price range. And finally, if you’re just looking for a cheap Bluetooth set, the Outdoor Technology DJ Slims is another on-ear pair (in-ears tend to be pricier), but it delivers laudable audio for its low price. For $100, the iHome iB75 delivers thunderous lows without distorting, and allows for full playback control and track navigation. There’s nothing it gets wrong, really, except that it could use more treble in its mix, but certain bass lovers will find exactly what they’re looking for in this water-resistant option.

The PD782, PD785 & PD702 Hytera Radios are starting to take some of the digital market from.

Wow. The brand new radio accessory is magnificent. I mean it’s just so stunning and so advanced. I pity those who grew up without the radio accessory.

The PD782, PD785 and PD702 Hytera radios are affordable, as well as being easy to use and providing high quality audio. This is a good combination when it comes to two-way radios, a technology that, by definition, needs to be durable, easily replaceable and effortlessly useable in case of emergency.

The parent company, Hytera, have been operating since 1993 and in that time they have developed a strong reputation as an industry leader. In short, they are in the process of cultivating a trusted international brand. Hytera are an emerging brand with a considerable track record for producing quality technology at premium prices.

Another likely source of Hytera’s recent success is the effectiveness of the Hytera earpiece. The Hytera multi-pin earpiece is designed for use with the PD702 and PD782 radio models. It features excellent playback, as well as being solid and durable. This Hytera earpiece is available for around £40.00 and is a professional level model, proving highly effective for many modern surveillance exercises.

Returning to the two-way radio discussion, Hytera radios include a number of advanced features, including a robust design, as well as a full colour LCD display, something that is a rarity in today’s market. There are also a high number of messaging options.

The PD785 is IP57 rated. This means that it can even be completely submerged for up to 30 minutes without obtaining any significant damage. It can also switch between analogue and digital mode and features full digital encryption.

Hytera have received a boost in sales because they have created a series of products that are up-to-date, hardwearing and professional. Two-way radios need to be reliable as a matter of fact, which is why these products are selling so well.

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