These programs are used to code and decode data or signals from one format to another so that the end devices are able to interpret and play the signals.mp3, etc. 4/8/16/ 32 channels). These applications use compressor-decompressor software programs, commonly called CODEC.

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* Channels: Channels are individual lines of data that make up the signal.mov, . to code/encode the data. Common types are mp3, WMV, DTS, etc. They are also used in VoX systems for filtering and pulse code modulation, analog line termination, encoding of POTS subscriber lines, integrated access devices, SOHO/residential gateways etc. Media like audiotapes and VHS/Betamax tapes use analog signals to store the files while CODECs are meant to store digital files.

Selection:

The basic criteria are:

* Audio CODEC: Used to compresses/decompresses digital audio signals or data with reference to standard audio file format or streaming audio format. Movies use this kind of compression.g. Common video file formats are: mpeg, . These are used in digital signal processing applications where further data processing will be done. Some audio formats are mp3, DTS, WMA, etc.

* Other factors are the type of chip, voltage, etc.You must have played mp3 songs or seen movies on your computer using applications like Winamp, Windows Media Player, Real Player, Xing Player, etc. In video signals, the audio, video and metadata streams are combined or joined together using a video file format.

* Loss compression: Some loss in data quality occurs in this type of compression.

Applications:

CODEC allow you to enjoy digital movies and music. The higher the number of channels that the device can accommodate, the better the quality will be (e.

aluminum fabrication manufacturers * Lossless compression: The original signal quality is retained. This produces higher file sizes. They use digital signal processing, filtering, impedance synthesis, filters, etc.

How CODEC works:

CODEC devices, in addition to the appropriate software, also have analog-to-digital and digital-to-analog converters used for audio and video data.

* Video CODEC: Used to compress digital video. Common formats are: MPEG (part 1, 2, 3, 4), Windows Media Video, Real Video, DivX, etc