In environmental noise, air turbulence, rough surfaces, and obstacles such as trees may cause scattering. 4įurthermore, scattering occurs when sound waves propagates through atmosphere and meet a region of inhomogeneity therefore, some of their energy is redirected into many other directions. Precipitation, rain, snow, or fog has an insignificant effect on sound levels although the presence of precipitation will obviously affect the humidity and may affect wind and temperature gradients. When sound propagates in air, high frequencies are absorbed more than low because of the molecular relaxation phenomenon, and the amount of absorption depends on the temperature and humidity of the atmosphere. In addition, during propagation, waves may be reflected, refracted, or attenuated by the medium. The third factor is the viscosity: the average viscosity determines the speed at which the sound is attenuated, but for water or air the attenuation due to viscosity is negligible. The second is the motion of the medium: if the medium is moving, this movement may increase or decrease the absolute speed of the sound wave depending on the direction of the movement. The first is the relationship between the density and the pressure of the medium, which is influenced by temperature and determines the speed of sound within the medium. The behavior of sound propagation is generally influenced by three factors. The frequency bands of naturally audible sound are divided into: 3 The speed of propagation of sound depends on the characteristics of the medium in particular, it is directly proportional to elasticity and inversely proportional to density. Sound waves are characterized by frequency (Hz), intensity (dB) and timbre, which at the same frequency distinguishes one sound from another. In longitudinal waves particles oscillate along the direction of propagation, while in transversal ones the direction of particles oscillation is at right angle to the direction of propagation. Sound is transmitted through water and air with longitudinal waves, through solids with longitudinal and transverse waves.
While the sound source continues to vibrate the medium, vibrations propagate far from the source at the speed of sound, forming the sound wave. 1, 2 Sound waves are generated by a sound source that creates vibrations in the surrounding medium.
The unregistered version is free for non-commercial use and is limited to 8- and 16-bit wav and aif files it includes a 25-launch trial of the registered features.Sound is a vibration that propagates in the form of a sound wave through a medium that can be a liquid as water, a gas as air or a solid material. The registered version plays all sound file formats including wav, aif, mp3, mp4, m4a, flac, wma, alac, wv, ogg, even audio from video files like wmv, mov, avi, flv, and more.
Users love its rock-solid stability for live events, its simple 1 sound per 1 key metaphor which eliminates the complications of other software samplers, and its ultra-optimized use of the computer keyboard with lowest-possible latency requiring no external devices or MIDI.
Soundplant, now in its 11th year and winner of multiple awards, was designed to do one thing and do it well: to trigger sound files from the computer keyboard with maximum speed, efficiency, and ease of use. All playing sounds are displayed with a progress bar and track time, and you can turn on 'background key detection' to trigger sounds while using any other software with Soundplant hidden.
A simple graphic interface provides for drag-and-drop configuration of each key and several options which control the way each sound is triggered, with non-destructive pitch, offsets, looping, volume, fading, and panning. Because it is a standalone 'software sampler' that uses your own sounds, Soundplant is an infinitely flexible electronic instrument limited only by the variety of sounds that you feed it. Use it as a performance, presentation, or sound design tool, as a drum pad, to mix together tracks in realtime, to create music or loops, or to trigger sound effects or background tracks during a show. It can assign sound files of unlimited size and any format onto all keyboard keys, giving you hours of instantly-playing audio at your fingertips with no extra hardware needed. Soundplant is a digital audio performance program that turns your computer keyboard (yes, your QWERTY keyboard) into a versatile, low latency sample-triggering device and playable instrument.