What is audio encoding and decoding technology?

Audio coding refers to the process of transforming digital audio into a transportable, smaller and more efficient format, and processing Audio signal processing into a data stream suitable for storage and transmission. Audio encoding can make digital audio more bandwidth and storage capacity efficient. Audio decoding is the process of restoring audio data to the original digital audio signal, enabling it to be played or used for other purposes. Common audio encoding and decoding techniques include two methods: lossy compression and lossless compression. Among them, lossy compression is the most common, which can reduce the amount of data by removing irrelevant parts from the audio signal, preserve the information that can express the original audio as much as possible, and enable more efficient transmission and storage of audio data. Common lossy compression audio encoding and decoding technologies include AAC, MP3, AC3, etc. Lossless compression, on the other hand, does not destroy the original information of the audio and preserves the original audio data. Therefore, it takes up a lot of space and has a low compression rate. Common lossless compression audio encoding and decoding technologies include FLAC, ALAC, and so on.