Title: Audio authoring software
Course: How to Use Multimedia in Courses

A digital audio editor is a computer application for audio editing, i.e. manipulating digital audio. Digital audio editors are the main software component of a digital audio workstation.

Editors designed for use with music typically allow the user to do the following:

- Record audio from one or more inputs and store recordings in the computer's memory as digital audio

- Edit the start time, stop time, and duration of any sound on the audio timeline

- Fade into or out of a clip (e.g. an S-fade out during applause after a performance), or between clips (e.g. crossfading between takes)

- Mix multiple sound sources/tracks, combine them at various volume levels and pan from channel to channel to one or more output tracks

- Apply simple or advanced effects or filters, including compression, expansion, flanging, reverb, audio noise reduction and equalization to change the audio

- Playback sound (often after being mixed) that can be sent to one or more outputs, such as speakers, additional processors, or a recording medium

- Conversion between different audio file formats, or between different sound quality levels

Typically these tasks can be performed in a manner that is both non-linear and non-destructive.

(from the Wikipedia term Digital audio editing)

We reccommand Audacity for its simplicity multi platform openess and extensive feature list:

Audacity is a free, easy-to-use and multilingual audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. You can use Audacity to:

- Record live audio.
- Convert tapes and records into digital recordings or CDs.
- Edit Ogg Vorbis, MP3, WAV or AIFF sound files.
- Cut, copy, splice or mix sounds together.
- Change the speed or pitch of a recording.
- And more! See the complete list of features.