You will need
  • - personal computer with access to a global network;
  • microphone;
  • mixer.
Use expensive high-quality microphone. Typically cheap microphones sound cheap. Ideally, this should be a professional Studio microphone that should be connected to the digital mixer. And the mixer via the USB interface connect to your personal computer.
Open the program, which will make subsequent editing a recorded musical composition. This may be one of the special programs, for example Audacity, featuring simple usage and a wide range of functional of tools available to a PC user. Open the program, go to its menu and select "File" and then "Open". Then, specify the program directory to the recorded musical composition and hit OK.
With the aim of improving the quality of the sound of music use all the available tools for this program. To start go to menu – item "Edit", and then perform additional processing of the audio file. Then do the filtering of a musical composition, using the option "noise Reduction". At the end of processing of music file, save this song in mp3 format or wav.
If you want to improve the quality of the audio file that has been compressed, use the same program Audacity. Take advantage of the available effects, which can be found in the Effects tab, Noise Removal and Equalization. Then save all changes.