It is always best to turn off cell phones and pagers before the concert begins. Noises such as pagers going off or a cell phone ringing are very distracting to the conductor, the musicians and your fellow audience members, and are considered to be quite rude.

Below is a list of noise levels for sounds and equipment that you may be familiar with. Many of the examples are from the NIOSH website, but other references have also been used. It is important to keep in mind that you should really be concerned with the noise level at the ear, instead of the noise that is actually produced by the equipment. Therefore many of the examples have to be used with thought.

Vocalizations may serve several purposes. Some animals, particularly young ones, vocalize to get attention when they want food. Other vocalizations are signs of aggression and warn other animals (or animal care volunteers) to be careful. Large male California sea lions bark to advertise their dominance; their voice is part of their display. Some animals may vocalize at The Center when they are stressed.

With MRI, the patient stays in one position while the machine captures images from different directions using three small magnets inside the larger magnet. The banging noises are the small magnets altering the magnetic field to focus on a specific body part.

If you've ever seen the TV show "Skippy" you may have heard Skippy going "tch tch tch". I have never heard a kangaroo make that sound. A male will cluck at a female to reassure her when he's trying to mate with her and kangaroos of either gender will growl preparatory to fighting. I've tried to get sound recordings of this, but so far without any luck, but note the movies of a common wallaroo and the Whiptail Wallabies mating I have on my movies page.

Probably not, but it's possible a sonic boom may be heard somewhere along the descent path from Oregon to Utah. The capsule probably will not make any visible streaks in the sky as it descends through the atmosphere but it might. The capsule itself is less than five feet in diameter, probably too small to be seen, though its parachute will be visible to the retrieval helicopter pilots and possibly to nearby viewers at the test range. For more information, see http://genesismission.jpl.nasa.

Beardies have been known for their sensitivity to loud noises. This includes noises caused by vacuum cleaners, kitchen devices, motorcycles, and the like. They have exceptionally good hearing, thus the noise seems many times louder to them than to you. But certain types of noises seem to irritate some more than others. The best thing to do is ignore them and let them seek out their own methods for avoiding the situation. Take the time to put them outside if you are going to vacuum for example.

Coughing can be an unavoidable problem, but there are ways to avoid coughing during the music. If you feel a cold coming on, please bring lozenges with you, or feel free to take complimentary cough drops located in the main lobby. Please unwrap the cough drop ahead of time. Unwrapping a cough drop during the music makes more noise than you might think. If there are no lozenges in hand and you need to cough once or twice, please try to wait for the end of the movement.

quot;Noise" is a general term referring to any sound a speaker system makes that is not part of the original source material. There are many different types and sources of noise, each with its own solutions. Below is an explanation of the most common types of noise, what causes them, and how to minimize their occurrence and effects. Sound card If the humming or buzzing gets louder or softer with changes in the volume setting, this is an indication of noise coming from the sound card.

First, define the nature of the noise. With the engine running apply the brakes and listen for irregular noises. A whine usually indicates low fluid (power steering). A gurgling or rumbling noise indicates air in the system. A pulse thump indicates trapped air in the hydroboost circuit. Check the service manual as procedures differ by year of manufacture date. Adjustment procedures require the vehicle to be raised on a frame engaging lift.

Define the "source" and conditions from where noise occurs. Excessive noise can indicate potential brake system problems such as lining wear limit. Noises such as squeaks, squeals, grinds and growls are related to brake hardware needing replacement and proper rotor finishing and break in. . Operation of ABS and its related component noise such as clicks, motor/pump cycling and pulsing are normal.

The answer is no, your AC/USB Boostaroo isn't defective. What you are hearing is the transient noise that your PC produces naturally through oscillation of your power supply and the hard drive whine caused by its mechanical spin. These noises are much more common in older PC's, but a lot of newer PC's have noise filters built into the PC's USB ports, which eliminates these noises. If this problem is occurring, we recommend using the AC power supply for your Boostaroo instead of the USB cable.

Opossums are very quiet creatures. You are far more likely to see one long before hearing any noises from it. When threatened they often will hiss, much like a cat, and can make a low growling sound. Some have reported hearing opossums softly purring to their young, though I have never been so privileged. One person wrote me to say they'd once heard a young opossum mewing like a kitten, but it is the only such report I've received.

These noises are common during the first few days after surgery. Air in the pocket causes these types of noises, but they will dissipate anywhere from a few days to a few weeks post-op. Sloshing may also be the result of an under-filled implant. For example, if you have a Mentor 300cc implant, Mentor recommends that the implant be filled to at least 300cc, and no more than 325cc. If the implant is filled to, say, 275cc, you may get a sloshing effect.

We do not censor our clients as far as what sounds they may make. It is not unusual for a client to groan or make sounds while being worked on by us.

Ringing (tinnitus is the technical term) in the absence of stimulating sound from outside the ear can be caused by many things, from fatigue to certain doses of medications such as aspirin. It is believed that the ringing is due to spontaneous activity in the cochlea. The most common cause of tinnitus is hearing loss, and in particular sensorineural hearing loss.