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Sound editing:Audio devices , formats and Codecs.
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Sound Editing:Audio devices, Formats and
CodecsBy:Moad Hilaly & Roberto Cardoza
Sound Editing
FormatsWav, Midi, Aiff,
Cada, Mp3, Wma and Aup.
Audio Devices
Microphones,Loudspeakers,Soundcards,
Soundports and headphones
CodecsLoss codecs and Lossless
codecs
Index
Introduction: - Audio Devices: Audio devices allow you
to play or record audio, which can be sounds and music. There are two types: Input and Output.
-Audio Formats: An audio format is a file format for storing digital audio data on a computer system or electronic device.
-Codec:A codec is a device or computer program capable of encoding or decoding a digital data stream or signal. There are two types loss codecs and lossless codecs.
Sound Editing
-Input devices: they are devices that recive sound, and convert it into digital signals in the soundcard through the soundports.
Examples: Microphones.
Audio Devices
-Output Devices: They are the devices that emit digital signal transformed to sound by the soundcard by plugin it into the soundports.
Examples:Loudspeakers and Headphones.
Mp3: Is an encoding format for digital audio which uses a form of lossy data compression. It is the most common audio format for consumer audio streaming or storage.
Midi: Is a technical standard that describes the relation between and instrument and a computer.
Formats
WMA:Is an audio data compression technology developed by Microsoft.
WAV:Is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs.
Loss codecs:Many of the more popular codecs in the software world are lossy, meaning that they reduce quality by some amount in order to achieve compression.
Lossless codecs: There are also many lossless codecs which are typically used for archiving data in a compressed form while retaining all of the information present in the original stream.
Codecs