Audacity is one of the most feature rich, easy to use audio software applications. Also, Audacity is a free open-source and free for users. You can edit MP3 files with Audacity on a number of ways to reduce the white noise on acceleration or deceleration of the file.
1.
Download Audacity Audacity is on site Sourceforge. Audacity is for PC, Mac avaialbe platforms Linux. Whether you have the appropriate platform for your computer to download. Install Audacity on your computer.
2.
Decide what is exactly the way you edit your MP3 files with Audacity too. You can speed up, slow down, remove the white noise, placement and removal of documents, even flow. Make a list of tasks you want completed during the treatment.
3.
Open Audacity. On the File menu, select Open . Go to the first MP3 file you want to change. Select the file and click Open.
4.
Choose the area your MP3 file you want to change. If you edit the entire file, press Control and A on your keyboard.
5.
Edit the MP3, select the appropriate option under Edit or effect from the menu.
* Be sure to save the MP3 files before you edit them with Audacity for recording. As you edit, ave your changes frequently, so as not to lose your progress.