There are many myths about being able to improve the sound quality of an MP3 loop. The most common misconception is that when the bit of the track is changed from 64 to 128kb, there is a marked improvement in the sound quality. This is unfortunately far from the truth. In the process of compressing to 64kb, the track will definitely lose a part of the volatile sound but there is no way the situation can improve once it is converted to 128kb. Worse still, the sound quality of the MP3 loop may suffer further.The only way to get a good sound quality is to convert the original track into MP3 format with a good resolution.
The sound quality of an MP3 file can be improved by changing the bit rate fro 64kb/s to 128kb/s. There is software available on the internet that claims to be able to improve the quality of your music files by doing this.
This is not true. Whenever a music file is compressed down to 64kb/s, a part of the volatile sound system which cannot be compressed is lost. Converting it back will not recover this part of the file. It will only double the size of the MP3. This means it will take up more hard disk space but you will not notice any real change in sound quality. In some cases, the quality may even deteriorate.
For this reason, it is recommended that you avoid unnecessary conversion of your MP3 files. The only way to improve the sound of your music is to rip the songs from the CD once again, this time choosing the higher bit rate from the start.