Audio MM UNIT-III PDF

Unit - III AUDIO  Sound sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.  Acoustics Acoustics is the interdisciplinary science that deals with the study of mechanical waves in g...

Unit - III AUDIO  Sound sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.  Acoustics Acoustics is the interdisciplinary science that deals with the study of mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound, and infrasound.  Physics of sound Sound can propagate through a medium such as air, water and solids as longitudinal waves and a transverse wave in solids Longitudinal and transverse waves Longitudinal sound Transverse waves Types of acoustician Types of acoustician Types of acoustician Types of acoustician Types of acoustician  Nature of Waves Vibrations, Waves and Energy ⮚A vibration is a back and forth disturbance in a medium. ⮚A wave is a vibration that transfers energy through matter or space. Characteristics of Waves Amplitude Wavelength Wavelength Frequency Frequency Period Basic Characteristics of Sound Pitch Pitch Duration Duration Quality Intensity Five Elements of a Great Sounding System Sound card Sound card Audio file format Audio file format Lossless compressed audio formats Free and open file formats Free and open file formats Free and open file formats Proprietary formats Proprietary formats Codec Codec Audio and Multimedia Professional sound editing software for PC & Mac  Audio Editing Applications ⮚ Software audio editing for studios and professional journalists. ⮚ Edit sound files to broadcast over the internet with the BroadWave. ⮚ Streaming Audio Server Normalizing the level of audio files during mastering before burning to CD. ⮚ Editing mp3 files for your iPod, PSP or other portable device. As a music editor (includes ringtones creator formats).  System Requirements ⮚ Works on Windows XP 2000/2003/Vista/2008 and Windows 7 For earlier Windows versions (98, ME) ⮚ Mac OS X 10.2 or later; ⮚ Pocket PC 2003, Smartphone 2003 (Windows CE 4), Windows Mobile 5 Pocket PC / Smartphone, Windows Mobile 6 ⮚ To run under Linux use WINE.