audio
audioThis article is about compression waves. For other meanings, see sound (disambiguation).Sound is a disturbance of mechanical energy that propagates through matter as a wave. Sound is characterized by the properties of sound waves which are frequency, wavelength, period, amplitude and velocity or speed. ExplanationNoise and sound often mean the same thing; when they differ, a noise is an unwanted sound. Yahoo! Search - Audio Search. In science and engineering, noise is an undesirable component that obscures a signal. Humans perceive sound by the sense of hearing. By sound, we commonly mean the vibrations that travel through air and can be heard by humans. However, scientists and engineers use a wider definition of sound that includes low and high frequency vibrations in air that cannot be heard by humans, and vibrations that travel through all forms of matter, gases, liquids and solids. The matter that supports the sound is called the medium. CHL - Acquisti online di Informatica, Audio Video, Telefonia. Sound propagates as waves of alternating pressure, causing local regions of compression and rarefaction. Particles in the medium are displaced by the wave and oscillate. The scientific study of sound is called acoustics. Perception of soundA schematic representation of hearing. (Blue: sound waves. TNT-Audio - rivista settimanale di HiFi, Musica ed Audio ad alta qualità. Red: eardrum. Yellow: cochlea. Green: auditory receptor cells. Purple: frequency spectrum of hearing response. Home Confronta Kn Mobile KN 500 Confronta Kn Mobile KN 400 Kn Mobile KN 310 Confronta Kn Mobile KN 310 Confronta Kn Mobile KN 300 Tel.me T919i audio Fotocamera VGA Prezzo Alcatel One Touch C552 e opinioni sul cellulare Alcatel ELLE Confronta Alcatel ELLE Confronta Siemens C72 Prezzo Palmare Samsung SGH D730 e opinioni sul cellulare Prezzo Siemens ST60 e opinioni sul cellulare Confronta Siemens ST60 Prezzo Pantech GB200 e opinioni sul cellulare Confronta Nec N750 Confronta Pantech GF500 Prezzo Samsung SGH S500i e opinioni sul cellulare Prezzo Motorola V878 e opinioni sul cellulare Nec N150 Prezzo Nec N150 e opinioni sul cellulare Nec N610 Confronta Samsung i500 Confronta Maxon MX-C180 SAMSUNG SGH X660 - Scheda prodotto Fotodigit.it Prezzo Sagem myZ-5 e opinioni sul cellulare Confronta Pantech PG-3600 Manuale Siemens C62 Motorola C350 Manuale Nokia 5210 Confronta Acer n20 Prezzo Telit NEO e opinioni sul cellulare Manuale Nokia 7280 LG L3100 Manuale LG L3100 Confronta RIM Blackberry 7230 Prezzo Motorola V 235 e opinioni sul cellulare ePRICE - MOTOROLA - V235 - V235 SILVER TRIB.65K+FOTOCAMERA Manuale Acer v750 Prezzo Palmare Acer v755 e opinioni sul cellulare Confronta Haier V2000 Prezzo Palmare Palmone Visor Deluxe e opinioni sul cellulare Palmare Palmone Visor Edge |