Audacity is a free audio editor. You can record sounds, play sounds, import and export WAV, AIFF, and MP3 files, and more. Use it to edit your sounds using Cut, Copy and Paste (with unlimited Undo), mix tracks together, or apply effects to your recordings. It also has a built-in amplitude envelope editor, a customizable spectrogram mode and a frequency analysis window for audio analysis applications. Built-in effects include Bass Boost, Wahwah, and Noise Removal, and it also supports VST plug-in effects.

Danish:
Med dette program kan du samle, dele og redigere i dine lyd-filer - Et virkelig godt og brugervenligt program.

MP3 Splitter is an MP3 audio editing utility that is used to split an MP3 into multiple files (tracks). It is handy for dividing long radio shows or mixes. The program is easy to use, just load the MP3 file, and set the breakpoints while you listen to the audio playback. No further documentation provided though.

Danish:
Hvis du har en stor MP3 fil (f.eks. et radioshow eller et monster-megamix), har du måske brug for at splitte filen op i mindre stykker ? - Det kan du gøre med dette program. Let at bruge og lige ud af landevejen ...

mp3DirectCut is a small and efficient tool for cutting MP3 directly. That means you don't have to decompress your MP3 files into a PCM format to remove parts or copy regions out of it. This saves work, encoding time and disk space. And there is no quality loss through any re-compressions! Trim your CD grabbings or your directly to MP3 recorded vinyls or tapes. Cut favourit songs from long MP3 radio or live recordings. Make multiple cuts and remove everything you want in frame resolution from MP3 files.

Danish:
Her er programmet som du har brug for når du skal redigere, cutte osv i dine MP3 filer, uden først at skulle konvertere etc. Du kan f.eks. lynhurtigt adskille store MP3-filer hvor ét eller flere numre er indspillet i én samlet fil.

Pocket Voice Recorder is a small sound recorder that can record up to 10 minutes of audio from your microphone or any other input line available with your sound card. The recordings are automatically organized as messages and can be easily exported to standard WAV sound file format.

Danish:
Lille handy program som kan optage lyde fra dine udgange i PC´en.