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Sound is the periodic pressure changes that can be perceived by the hearing organs of living things in the atmosphere. Sound at the physical dimension, air is a simple mechanical disorder that occurs in solid liquid or gaseous media. It occurs as a result of vibrating molecules in a substance. Sound is a kind of energy, free mp3 download, Sound is made up of vibrations, vibrating converts to energy, song indir Voice is called strength. Measured in decibels (dB).
The tone of voice is that if the sources are the same, the sounds are perceived differently. The color difference between the voices. This color, which is peculiar to the sound, is won as a consequence of the complex vibrations that occur by riding the side vibrations (harmonics) as "proportional" to a carrier vibration (prime wave). The higher the number of periods in the cycle that make up the frequency, the sharper the sound; the less it is, the more it becomes bass.
Sound does not radiate outside the atmosphere because air is necessary for sound to propagate. For example, launch missile, listen to free music, produces 120 decibel sound. The loud, free music download program produces 90 decibels of music. Normal person's speech is equal to 50-60 decibels.
Material dissemination is needed to spread the voice. So download music download program in the space sound is not spread. Sound is spread in waves. Download free song from audio source vibrate particles of sound material. For this reason the sound spreads mp3 download. The sound wave has a series of jamming and rarity at every full cycle of the song download program. The sound is spread in particles, myth music, myt music, the faster the particles are so fast. The speed of sound propagation decreases gradually from solid to liquid, from liquid to liquid. Free music, in the form of speed (V) = distance (D) / duration (T), is not actually a theoretical value qualification. Because external factors, which are not considered in this formula, create a number of effects on the speed of the music download program of sound waves. For example, wind noise pops away from the free mp3 download, temperature differences in the night and day affect the sound waves. Sound waves propagate at about 5000 m / s in solids. It travels at 1453 m / s in water. It takes 340 m / s in the air. Sound sources are divided into two, natural sound sources and artificial sound sources..