Freely-licensed media.

If your looking for media (images,video,sounds),Wikimedia Commons is a repository of educational media files that are public-domain or freely-licensed, and can be used by anyone. You can find high quality images to use them for your lessons or your projects.You can also upload your files to share them with other users. The content is categorized by topic, location, type, author, license and source.

Easy record, edit and enhance sounds!

If you want a freeware program to edit your audio files to record audio from a microphone or any other available input device, apply effects, tools to include text-to-speech , burn audio CDs from MP3, WMA, WAV, and OGG then get the "Free Audio Editor".

For any help see the Video Tutorial.