CODEC IP Core
The term “codec” is actually a portmanteau that is meant to be a combination of the words coding and decoding. This means that a CODEC IP core is capable of acting as a coder as well as a decoder, or in more relevant terms, it can act as an analog to digital converter as well as a digital to analog converter. The job of a codec circuit is to convert signals for the sake of transmission or encode them for storage and later use. Then it is responsible for decompressing and converting the signals back into their original form as needed.
Considering a CODEC IP Core is capable of performing both kinds of conversions, it contains both, an analog to digital converter as well as a digital to analog converter.
Audio CODEC IP Core
One of the two most common applications of codec circuits is in audio devices and audio editing applications. The audio codec is responsible for taking analog audio signals received from the environment detected by the microphone, and converting them into digital signals- a stream of binary 1s and 0s- so that the data can be safely stored on the audio device. Then a decoder, which is part of a receiving device, converts these stored or transmitted digital signals back into analog audio signals so that you can listen to the playback. The same kind of audio codecs are also used in sound cards or computer systems and many other audio devices.
Video CODEC
The other of the frequently seen applications of codec circuits is video codec, as seen in video streaming, conferencing, and editing devices. Similar to how audio is encoded and then decoded by an audio codec, a video codec performed the conversion for video content. The video signals are encoded from analog to digital and then digital to analog for video streaming purposes. Not only that, but the video signals are also compressed and decompressed in the process.
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