The mp3 format is based on a technique called perceptual encoding. Its algorithm consists in the initial determination of the frequency characteristics of the original file and the subsequent removal of those fragments that are not distinguishable by the human ear. Then, based on mathematical methods, information is compressed and packed at regular intervals into separate data areas. The compression ratio may vary. The value that characterizes the degree of compression is called the bit rate. Thus, decreasing the size of an mp3 file is carried out by decreasing the bitrate.
It is necessary
Computer, audio transcoding software, or music editor
Instructions
Step 1
First of all, you need to find a program to encode your music files. For this purpose, any music editor (Adobe Audition, Cubase, Sound Forge and others) can be suitable, in addition, there are special programs designed to transcode music files into various formats. The popular AIMP audio player has a special Audio Converter utility that is perfect for this purpose.
Step 2
The principle of working with special programs for converting music files is easy to understand. In the window of such a program there is an item in which you need to specify the source file (the mp3 file, the size of which you want to reduce), and an item in which you will be asked to specify the location to save the new file (reduced). And there must be a point in which you need to specify the format of the new file (mp3 in your case) and bitrate.
Your task is to choose a new bitrate value that is less than the original one. You can try several options for bitrate values to choose the one that suits you best in the end.
Step 3
After that, press the button with the name "Convert" (in different programs it can be called "Start", "Start", "Start", "Go", "Convert", etc.). After completing the process, you can listen to your new file, determine its size. Repeat the operation if necessary.
Step 4
If you use a music editor to convert an mp3 file, then your task is to open your file in the editor, and then, when saving it, select the desired format and bit rate.
