

This algorithm further reduces file size by finding reoccurring bits of data and encoding them to take up less file space. It can tell your computer that "it contains ten bits of this type of data," taking up one bit, rather than repeating that same data ten times, which amounts to 10 bits. This method effectively reduces file size by reducing the number of reoccurring bits of data. The algorithm then uses pointers to point back to where the reoccurring data has been seen before in your files. It enables the creation of a version of one or more files with the same data at a size substantially smaller than the original file. To put it simply, LZ77 will look for sequences of data in your files that reoccur, which often is a lot. File compression plays a big part in connecting us, letting us send less data down the line so we can have faster downloads and fit more connections onto busy networks. File compression is a data compression method in which the logical size of a file is reduced to save disk space for easier and faster transmission over a network or the Internet. The most common is the "DEFLATE" algorithm, a combination of LZ77 and Huffman codes. The most common compressed lossy audio formats are AAC. One way to store more data when you are low on hard drive space is by using compression to make the files and folders you already have on the drive take up.

As a result, most audio file formats strive for a balance between audio quality and file size. Lossy compression can be adjusted to compress audio a lot, or to compress audio very little. When you compress a folder to zip, it works by applying certain compression algorithms to the files within the folder. Compressed lossy audio files are made by removing certain types of audio data to shrink the file size.
