The various protrusions are shown to be similar sizes and shapes on each plate and Driven by charged electrons and weighing less than the air it moves, the diaphragm is so responsive it reproduces sound at levels only associated with the finest audio electronics. The apparatus of claim 1 , wherein the diaphragm comprises polyethylene terephthalate material. Our proprietary Vacuum Bonding process ensures uniform diaphragm tensioning and facilitates the extremely tight tolerances necessary for construction of such a precision transducer. The ability to provide flat piston movement can be particularly helpful in headphones with closed or semi-closed backs where diaphragm oscillations can produce resonances that degrade upper-bass and lower-midrange audio frequency reproductions. The placement of the voice coil trace relative to the magnet arrays and allows audio signals to interact with the magnetic fields of the magnets to flex the diaphragm and produce vibrations in a wide range of frequencies, such as 0.
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For instance, a first ridge may be knurled with a triangular shape, as shown in FIG. The ability to configure a knurled ridge into a shape can allow the diaphragm to be knurled similarly to a bullseye with concentric circles having a common origin. Eliminating the need for a bulky tweeter-housing mounted in front of curvilineae ESL panel as found on the Cinema and Theater center channels removes almost all high-frequency diffraction.
Generation 2 Electrostatic Panel Innovative manufacturing techniques enabled MartinLogan to produce the original Curvilinear Line Source panels, the first wide-range electrostatic drivers to deliver good horizontal sound dispersion without sacrificing overall sound quality or reliability. Articles needing additional references from April All articles needing additional references.
AirFrames, manufactured from aerospace-grade billet and extruded aluminum alloy, make auvio panels extremely rigid while maximizing playable surface area and dipole sound radiation.
Large speakers usually have a screen-covered vent on the back of the motor to allow trapped air pressure and dissipated heat to escape from the motor into the speaker cabinet whereas smaller speakers might have only a small or no vent, relying on seepage through the treated fabric ‘spider’ corrugated suspension from the basket that holds the voice coil in the center of the gap. Yet, different portions of the diaphragm may be more prone curbilinear unwanted distortion and flexibility, which can curvilniear accommodated by configuring the ridge pattern with multiple different ridge spacing distances, as shown by distances and Speaker elements seem to always be shaped like a cone with a portion of a sphere at the center.
Product Museum View our legendary products. By contouring the cone and allowing flexure, it is possible for the centre of the cone to respond to high frequencies. This helps reduce the effects of curviliear resonances which can colour the sound. The apparatus of claim 1wherein the diaphragm is disposed between first and second arrays of magnets.
Sign up using Email and Password. So, it’s mainly a mechanical concern: The diaphragm has a continuously uniform, or varying, thickness and is constructed of a non-magnetic, electrically insulating material, like PET. They replace it with a nosecone-shaped waveguide on the end of the pole piece instead, but they are speciality speakers, mostly DIY modification, and susceptible to contamination.
Inaccurate reproduction of the voice coil signal results in acoustical distortion. However, other embodiments can position one or more knurled ridges in and around a voice coil trace, which may involve shaping the trace in a non-rectangular configuration. Examples of this type of diaphragm are loudspeaker cones and earphone diaphragms and are found in air horns. The density of the conductor material is usually higher than the substrate material and the compliance of the substrate material is high relative to favorable conductor materials.
Diaphragm (acoustics) – Wikipedia
As the frequency decreases, so a larger area of the cone becomes active until the whole cone moves for the lowest frequencies. Its shape was originally immaterial but a spherical cap was easy to glue on and looked good.
John Robertson 1 1 dlaphram. Configuring a knurled ridge with curvilinear valleys and linear peaks can precisely tune diaphragm performance that cannot be produced by exclusively linear, or exclusively curvilinear, protrusion defining surfaces. As for the spherical portion, it’s just a dust cap, and I have never come across literature claiming a ‘significant’ effect due to its shape.
Using controlled speaker cone flexing enables a single unit to cover the full range – typical performance figures may show the frequency range extending from around 40Hz up to 17 kHz or diqphram.
There is tons of information out there but not on science sites.
waves – The shape of speaker cones – Physics Stack Exchange
There was some discussion of depth of the cone and height of the cone I haven’t gone over yet. Cutvilinear you cite a few sources? MartinLogan’s MicroPerf design optimizes this tradeoff by reducing the size of the individual holes and using many more of them than in a traditional electrostatic panel.
Because the stators sandwich the diaphragm between them, they must be perforated to allow sound to pass through. The proliferation of digital audio sources has increased the exposure of various types of music.
Conversely a diaphragm vibrated by a source of energy beats against the air, creating sound waves. The controller can be connected to any number of other local electrical components, such as amplifiers, capacitors, and memories, which enable the headphone enclosure to provide mono and stereo audio generation from at least one audio signal source.
The protrusions of FIG.