Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic...

up impedance in Wiktionary, the free dictionary. Impedance is the complex-valued generalization of resistance. It may refer to: Acoustic impedance, a...

electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for...

(symbol Rayl) is one of two units of specific acoustic impedance and characteristic acoustic impedance; one an MKS unit, and the other a CGS unit. These...

Sound box Sound reproduction Sound measurement Acoustic impedance Acoustic velocity Characteristic impedance Mel scale Particle acceleration Particle amplitude...

{v} ,} where p is the sound pressure, v is the particle velocity. Acoustic impedance, denoted Z and measured in Pa·m−3·s in SI units, is defined by Z (...

The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current...

{\displaystyle {\frac {p}{c}}=z_{0},} where z0 is the characteristic specific acoustic impedance. Thus, I 0 = p 0 2 I p 2 = p 0 2 p c p 2 = p 0 2 z 0 . {\displaystyle...

point impedance; otherwise, transfer impedance. Resistance - the real part of an impedance. Reactance - the imaginary part of an impedance. Acoustic impedance...

An acoustic horn or waveguide is a tapered sound guide designed to provide an acoustic impedance match between a sound source and free air. This has the...

does not behave like an infinitesimal acoustic impedance; rather, it has a finite value, called radiation impedance, which is dependent on the diameter...

{\displaystyle \varphi _{v,0}=\varphi _{p,0}} , the amplitude of the specific acoustic impedance is given by z m ( r , s ) = | z ( r , s ) | = | p ^ ( r , s ) v ^...

– wire gauze, fabric or foam – is designed to have a significant acoustic impedance. The relatively low particle-velocity air pressure changes that constitute...

the system by compressing and expanding the springs, transmitting the acoustic energy to neighboring spheres. This helps transmit the energy in-turn to...

pockets of gas in the body, which reflect the sound due to mismatched acoustic impedance. Brown note Directional sound Electronic harassment – Delusion regarding...

such as acoustic impedance of a tube, which is not measurable because of its inherent interaction with the sound source and the load of the acoustic component...

acoustics Acoustic attenuation Acoustic emission Acoustic engineering Acoustic impedance Acoustic levitation Acoustic location Acoustic phonetics Acoustic streaming...

increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more...

Surface acoustic wave-based devices make use of the fact that the reflectivity of an acoustic wave at the crystal surface depends on the impedance (the stress-to-speed...

sounds, but will be insensitive because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster...

Effects of liner geometry on acoustic impedance. AIAA Paper, 2446, 2002. Dean, P. D.,An In-Situ Method of Wall Acoustic Impedance Measurement in Flow Duct...

the room. When a wave encounters a change in acoustic impedance, such as hitting a solid surface, acoustic reflections transpire. These reflections will...

how well their acoustical impedances match. Musical instruments are generally designed to radiate sound effectively. A high-impedance part of the instrument...

sound travels. The fraction of sound absorbed is governed by the acoustic impedances of both media and is a function of frequency and the incident angle...

increases the amplitude of the acoustic pressure that is generated in reaction, leading to the occlusion effect. The acoustic impedance of the ear canal cavity...

instrument, this small motion, but which is at a high acoustic pressure (thus a very high acoustic impedance), is partly converted into audible sound in air...

variation is required for acoustical systems; here pressure and voltage are made analogous (impedance analogy). In the impedance analogy, the ratio of the...

(the surface area of sphere) where z0 is the characteristic specific acoustic impedance. Consequently, I = p v = p 2 z 0 , {\displaystyle I=pv={\frac {p^{2}}{z_{0}}}...

critical to acoustic performance and tone, but there is no clear consensus on a particular shape amongst manufacturers. Acoustic impedance of the embouchure...

describe the combined measure of electrical or acoustic admittance and electrical or acoustic impedance. Immittance was initially coined by H. W. Bode...