Oscillations where particles are displaced perpendicular to the wave direction

Oscillations where particles are displaced parallel to the wave direction.

Refers to how fast the disturbance is passed from particle to particle.

Sound pressure level is measured in units of decibels (dB).

The amount of energy that is transported past a given area of the medium per unit of time is known as the ____________ of the sound wave.

one of the most commonly used parameters in linear acoustics.

The effectiveness of a sound absorbing materials can be expressed by its ____________________ .

WHEN THE SOUND HIT THE SURFACE IN DIFFERENT DIRECTION.

A scalar representation of the amount of sound energy absorbed upon striking a particular surface.

_________ is an absolute unit, which does not depend on

external factors.

a schematic representation of sound absorption and reflection of an insulating wall.

the sound wave that hits a surface and gets reflected back towards the source.

the term we use to refer to the absorption and diffusion technology that is applied to treat the energy within our room.

A SHORT REVERBERATION TIME CAN MAKE A ROOM SOUND LOUD AND NOISY AND CAUSES SPEECH TO SOUND MUFFLED AND MUDDY.

only used when you need to combat sound in a narrow, yet defined frequency range.

air impervious, non-rigid, non-porous material that's placed over an airspace. they are particularly effective against

low-range frequencies, such as bass.

persistence of sound after the cause of sound has stopped – a result of repeated reflections.

the field of acoustics that describes how sound propagates in a closed or semi-closed space. Each space has its own sound ‘fingerprint’ which affects the quality of a sound, whether this is speech, music or any kind of noise.

an unobstructed line of sight (or view) extending from a viewer to some object or landscape in the distance

an algebraic equation to determine the quality of view, known as the ________ .

occur when sound hits a surface that is neither predominantly absorptive nor sound transparent at the specific frequency.

a design procedure for analyzing reflected sound distribution throughout a hall, using the first reflection only.

A clear echo is caused when reflected sound at sufficient intensity reaches a listener approximately 7 msec or more after hears the direct sound.

perceived as a buzZing or clicking sound, and it is comprised of repeated echoes traversing back and forth between two non-absorbing parallel (flat or concave; surfaces

This describes the reflection of sound along a curved surface from a source near the surface. Although the sound can be heard at points along the surface, it is inaudible away from the surface.

Given a distance of 500 meters and time recorded of 2 seconds, compute the Speed/Velocity of sound.

The inverse square law can predict the Frequency at a given distance from the sound source.

create natural or artificial harmonics of a sound source to shine through and can give the sound additional warmth and stereoscopic space.

consist of an acoustical oscillation system, where there is a solid plate on the front end with tight air space behind it.