Open Audacity found in the applications folder.
File > Import > Audio navigate to the audio files that you want to import.
Save your project
(preferrably after every edit) File > Save navigate to your hard drive and create a folder with your name and save it to that folder. This folder will contain all your audio files and edit information so you can continue to work on different computers so keep this folder and it's information contained.
Tools Toolbar - chooses various tools for selection, volume adjustment, zooming, time-shifting of audio and a multi-function tool
Meter Toolbar - displays levels for playback and recording
Mixer Toolbar - controls the mixer settings of the sound card
Transcription Toolbar - plays audio at a slower or faster speed, affecting the pitch
Edit Toolbar - cut, copy, paste, trim, silence, undo, redo, sync-lock, zoom
Tracks > Add new > Audio track, Stereo track, Label track, or Time track
Track Control Panel: allows you to rename the track, provides sample information, mute or solo the track, increase volume and pan left-right function.
Label tracks: Listen to your audio and make labels.
Go to Tracks > Label Tracks
Zooming In/Out Zoom In to make accurate selections of your waveform.
Highlight a portion of audio then
Tracks > Add Label at Selection
Name your label.
Use Tab on your keyboard to select forwards to the next label, and SHIFT+Tab to select backwards to the previous label.
Open a blank track Tracks > Mono track or Stereo Track
Highlight your audio then Edit menu > copy
Select a point in your empty track then Edit menu > paste
File > Save Project
Equalization Allows you to increase or decrease desired frequencies.
Noise Removal Removes unwanted background noise.
Normalize Increases the overall volume of your waveform equally.
Select the envelope tool. Click a beginning, end, and middle point on your audio waveform. Click and hold on a point to increase or decrease the volume.
File > Export this command exports the entire project except muted tracks. File > Export Selection this command exports only selected tracks.
Select .wav for a high quality uncompressed file but bigger file size.
Select .mp3 for a lower quality, compressed, but small file size.