Sound cleaning software analyzes the noise and hiss of an audio file and provides various options for cleaning the file. This is accomplished through low-pass and high-pass filters, re-equalization of the sound file and adjustment of the volume gain of the audio file.
The software consists of various programs bundled to improve the quality of the sound file. Programs included in most sound cleaning software range from audio mastering to bit rate conversion programs.
The best way to clean up an audio file is to convert the file to a .WAV format. The cost of sound cleaning software can range from $100 to $1,000. Most programs are used in conjunction with leveling of audio files through a pre-mastering process. Various freeware and shareware programs provide the basic tools to clean up audio files.