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:fire: Sound :fire: (Analogue sound vs digital sound (1, Analog sound
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:fire: Sound :fire:
Sound is a type of energy made by vibrations. When any object vibrates, it causes movement in the air particles. This movement, called sound waves, keeps going until the particles run out of energy.
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Audio file formats
The Audio Files category includes compressed and uncompressed audio formats, which contain waveform data that can be played with audio playback software. This category also includes MIDI files, musical scores, and audio project files, which typically do not contain audio data.
Common audio file
Waveform Audio (.wav)
Waveform Audio (.wav) is a common file format. Created by Microsoft and IBM, WAV was one of the first audio file types developed for the PC. WAV files are defined as lossless, meaning that files are large and complete
MPEG-1 Audio Layer 3 (.mp3)
MPEG-1 Audio Layer 3 (.mp3) is a common, compressed WAV file. MPEG-1 files are about one-twelfth the size of WAV files. This is why MP3 players can accommodate hundreds of songs on a tiny chunk of storage space.
Windows Media Audio (.wma)
Windows Media Audio (.wma) was developed to compete with the MP3 format for Windows Media Player. Microsoft claims that the WMA files are compressed three times more than MP3s yet retain their original sound quality.
Ogg Vorbis (.ogg)
Ogg Vorbis (.ogg) is another compressed source code similar to MP3, but like WMA, more compressed. Ogg Vorbis is also open source.
Other Audio File Types
Musical Instrument Digital Interface (.midi)
Musical Instrument Digital Interface (.midi) is commonly used for computer keyboards and other computer-based musical tools. MIDI files contain musical notes, rhythm notation and other information often needed by a composer.
Audio Interchange File (.aif, .aifc or .aiff.)
Audio Interchange File (.aif, .aifc or .aiff.) was developed for the Macintosh computer to store audio files.
Sun Audio (.au)
Sun Audio (.au) or Audio/Basic was developed by Sun Microsystems for use on UNIX systems.
Emblaze Audio (.ea)
Emblaze Audio (.ea) was created by Geo and offers compression similar to MP3 formats, but its purpose is to be played with a JAVA applet-a miniature Internet program. Online greeting cards often use JAVA applet programs for motion and .ea sound files to play music.
Sound editing software
A digital audio editor is defined as a computer application for manipulating digital audio. As a multimedia creator, we normally use audio editor for recording audio, edit the duration and timeline, mix multiple sound tracks, apply simple effects for audio enhancement and create conversion between different audio file formats.
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