File Formats

It is very important to note that when you are using audacity you are creating a file called an AUP.
The AUP acts similar to an HTML file in that the data within the file is not necessarily it's content, but more importantly links to the content.
You will notice a folder created after you save the aup file called a data folder ie.
You will note that the file folder is "Sample_PSA_data" and the file is "Sample PSA.aup. Within the "Sample_PSA_data" folder you will find AU files. These are the wave files you have created as part of the process of capturing audio within audacity and they link to the timeline within Audacity. ALERT - here is where people run into problems. If you save part of your project on the N: drive and the another on the H: drive, the link in the timeline is broken and an erroor message will appear on the audacity screen saying that it cannot find an AU file. While these files can usually be recovered and reimported, it is a timely process and frustrating.
Soloution: Establish a folder on the N:drive as your working folder. It should contain both the aup file and the data folder for your project. At the end of the period, back up this folder to your jump drive. Upon completion of your project export the MP3 file and save it to both the handin folder and to your personal H:drive account.

What is an MP3? MP3's are compressed audio files. They contain all of the completed / mixed audio you have created as part of the process of mixing within audacity. MP3's are commonly used in the industry as a standard for music distribution ie. Itunes uses MP3's. An MP3 player can interprit these files and play them back.

What is a WAV file. WAV is an uncompressed audio file. See more at Microsoft Wave Soundfile format
What is an AIF- AIF is an uncompressed audio file. See more at
For a complete list of Audio file formats see this line: Audio File Formats