There are two types of loudspeakers, Electrostatic and Electromagnetic these two loudspeakers have different aspects and qualities. The use of which on is based on the buyer but if not knowing what each ones pros and cons are buying one may be difficult.
Electrostatic speakers use a thin flat diaphragm usually consisting of a plastic sheet coated with a conductive material such as graphite sandwiched between two electrically conductive grids, with a small air gap between the diaphragm and grids. For this speaker to operate without distortion there needs to be a constant charge running through the speaker rather than a constant voltage. The grids must be able to generate a stable electric field, while still allowing for sound to pass through the stator plates (Grids). To generate sufficient field strength, the audio signal on the grids must be of high voltage. The electrostatic construction is in effect a capacitor, and current is only needed to charge the capacitance created by the diaphragm and the stator plates. This type of speaker is therefore a high-impedance device. In contrast to the modern electromagnetic cone speaker is a low-impedance device, with higher current requirements.
Advantages of electrostatic loudspeakers include levels of distortion one to two orders of magnitude lower than conventional cone drivers in a box, the extremely light weight of the diaphragm which is driven across its whole surface. Since many electrostatic speakers are tall and thin designs without an enclosure, they act as a vertical dipole line source. This makes for rather different acoustic behaviour in rooms compared to conventional electromagnetic loudspeakers.
Generally speaking, a large-panel dipole ra...
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...other distorting the sound and in worst case scenario can sound like skipping in the song/sound.
The best loudspeaker that have been compared, out of the two the best loudspeaker would have to be the electromagnetic speaker. This is because not only because the cost is cheaper to replace and buy this speaker but also based on the sound quality that it produces compared to the electrostatic. The electrostatic loses in sound production because if there is too much vibration the outer casing can easily brake and show the electric plates which if touched can cause harmful damage.
The electromagnetic loudspeakers are better compared to the electrostatics appeal. The magnetic loudspeakers look very nice and produce a massive amount of sound and bass! These speakers can be put anywhere to produce the sound quality you want any where they are needed to be placed.
Lucio Proni is an engineer and cofounded of the company with his high school buddy Jim Birch. During the mid-1970’s when they were on their summer break from the University of Florida, Lucio and Jim decided to mess around with component speakers and wound up building home loudspeakers for fun. They worked out of a garage in Lucios home and showed some of their speakers to their friends and some. Later on, a few of them even bought some, so they built a couple more to sell on the flea market. Lucio’s early success inspired him to start a speaker business so he could make a living from his work. In 1975, he joined fellow business partner and friend, Jim Birch and founded JL Audio; their company name being an amalgamation of the first letters of their names. They didn’t really start out their business with a solid business plan, their early days were instead marked by a lot of trial and error. At first they tried to sell JL Audio products to local audio shops. They found some success doing this since a couple of the loca shops were interested in selling their home speaker systems and kits. In 1977, business became scarce and they encountered financial difficulties as a result. In troubling times like this, it was Jims’s business skills, Lucio’s quality workmanship, and their combined tenacity that got them through it all. As a child, Lucio was given some valuable advice from his father; he said that “if you’re not willing to put your heart into something, then don’t bother doing it”. This work philos...
The purpose of this experiment was to determine whether if the sound is affected when it travels through different length pipes. The method used to do this experiment was created by using 5 different PVC pipes in the lengths of 10, 20, 30, 40, and 50 centimeters. Then, using a tuning fork, sound will be produced on one end of the PVC pipe and measured with a decimeter on the other end. This experiment was recorded using 5 trials for each independent level and the average decibels (dB) for each pipe length were recorded.
Before 1925 recordings were made with an acoustical horn that would capture the sound of the musicians in front of it and transferred the vibration to a cutting stylus. No electricity was used. This process was called the acoustical process. In 1925, microphones were introduced to transfer the acoustical energy to an electric signal, which fed the cutting stylus. This electrical process ameliorated recordings sound.
Electric guitars are devices that generate sound from a set of pickups that convert string vibration into electrical signals for amplification. The sound starts out as vibrations the musician creates while playing. These vibrations are picked up by the pickups of the guitar. What are pickups? Pickups are permanent magnets wrapped around in a coil. Since the strings are made with a special material called ferromagnetic, they interact with the magnetic fields in the pickups and force electrons to move in the loop. Moving electrons can generate a signal that can be read by the amplifier.
and sounds that this can create are put to good use to add to the
We can draw to a close that the effect of using sound to levitate medicines and liquids can be more a more effective form of giving and creating medicine, because when the amorphous state of medicine touches an object it starts to turn into crystalline state which doesn’t supply as much effectiveness, not only for effectiveness but also in the speed of disbursement. so inturn using acoustic levitation takes out the step that causes it to turn into crystalline state, in turn increasing effectiveness.
A transducer is a mechanism that changes one form of energy to another form. A toaster is a transducer that turns electricity into heat; a loudspeaker is a transducer that changes electricity into sound. Likewise, an ultrasound transducer changes electricity voltage into ultrasound waves, and vice versa. This is possible because of the principle of piezoelectricity, which states that some materials (ceramics, quartz, and others) produce a voltage when deformed by an applied pressure. Conversely, piezoelectricity also results in production of a pressure whe...
The instrument that will be analysed in this report is the acoustic guitar. An acoustic guitar is any guitar that uses acoustics as a means to transmit the strings vibrational energy to the air to produce a sound. The sound from an acoustic guitar is initiated by the strings. When plucked with the fingers or a plectrum it creates vibrational energy which is then transferred to the soundboard or soundbox. Without the soundboard the string alone would not be able to produce much sound as it would just cut through the air without causing much disturbance, but since the soundboard is large and flat it moves the air easier, this process is called mechanical impedance matching. This increases the systems energy transfer efficiency and produces a much louder sound.
...om 4 inches to 12 inches. Car speakers have two different types component and coaxial. Component speakers are part of a set of speakers. Component speakers depend on each other to for complete sound range. Most times that would include a subwoofer for bass and tweeters for added clarity. Coaxial speakers are known as two-way speakers. In 1954, The Acoustic Research Company released the Ar-1W, which was a high excursion woofer. They included their sub woofers into compacted sealed speaker boxes. The speakers’ bass went down to levels of 20 Hz without being hooked to an equalizer.
Transducers used in a clinical setting are quiet complicated. “However, they share many of their design characteristics with simple, single crystal, unfocused probes.” Describing the components of a simple probe often helps people understand transducer characteristics as well as function. A basic ultrasound transducer has a case, a cylindrical tube that protects the internal components of the transducer. The electrical shield is a barrier which lines the inside of the case. This shield aids in prevention of electrical noise from interfering with diagnostic images. The acoustic insulator is also a barrier. However the insulator isolates the components of the transducer from the case. One of the most important parts of the transducer is the piezoelectric crystal itself which is involved in energy conversion. One of the more obvious components of a simple probe is the wire. The wire provides an electrical connection between PZT or active element and the actual ultrasound system. The last two components that I am going to talk about are the more important ones, the matching layer and the backing layer. The matching layer is at the face of the transducer in front of the PZT. “The matching layer is designed with impedance between that of the active element in the skin.” The ideal mat...
... of the carbon microphone that make is so distinct from all other electronic sender tones. With the combination of the real sound of a voice passing through the carbon microphone fused with the technology we have today, the model that is created by Oksanen and Valimaki and used by a range of producers “incorporates a filtered noise source to model the self-induced noise generated by the carbon microphones” (Oksanen, Valimaki 27). With the scientific ability our world has today, we are able to recreate a sound that was first discovered over a century ago. The development of the carbon button microphone definitely makes a statement about our ever-changing technological society. Although it was an object invented many years ago during the Second Industrial Revolution, it has been altered and improved and has therefore left an everlasting impact on our society.
... middle of paper ... ... Designs, C. & B. 2013. ProSonic Acoustic Cubes -. [online] Available at: http://www.customaudiodesigns.co.uk/acoustic-cubes.htm [Accessed: 1 Dec 2013].
From Kiss screaming “I Love it Loud, I wanna hear it loud,” to the Black Eyed Peas belting out “play it loud, baby play it loud,” loud music has spanned generations. For most people it is always been seen simply as fun entertainment. However as time goes on it is becoming more and more obvious just how dangerous “playing it loud” actually is. Musicians, music venue workers, DJs, and now even people listening to a personal music players, such as an iPod are in danger. Since music is such a large part of American culture, our society should educate those at risk on music-induced hearing loss so that music can continue to be enjoyed throughout life. Listening to loud music for an extended amount of time presents the risk of music-induced hearing loss or the loss of sensitivity to sound because of overexposure to loud music. With music overexposure and music-induced hearing loss it is important to realize the risks for musicians, other people in the music business, and people listening to portable music players (PMPs) and start looking for ways to protect and prevent music-induced hearing loss.
Medical ultrasound mechanisms produce ultrasound waves and accord the imitated echoes. Brightness mode (B mode) is the frank mode that is normally used.[2] The B mode gives a two dimensional (2D) black and white picture that depends on the anatomical locale of the slice. The body can be imaged in disparate planes reliant on the locale of the probe. These slender slices are of less than 1 mm every single and can be sagittal, coronal, transverse, or oblique. Sound waves are emitted from piezoelectric crystals from the ultrasound transducer. Piezoelectric crystals are fabricated from physical that adjustments mechanical signals to mechanical vibrations and adjustments mechanical vibrations to mechanical signals.[2] As ultrasound waves bypass across assorted body tissues, they are imitated back to the transducer crafting an picture on the ultrasound screen.[3] Aural impedance is described as the confrontation for propagation of ultrasound waves. This varies according to the density of the physical ultrasound passes through. After the physical is extra solid, nex...
Nature of wave: It is an electromagnetic wave as it does not necessarily require a medium for p...