In my search for the right tools, I wanted to find a simple sound editing tool. For months I have been wanting to convert a radio interview that I had done (and had coverage from the entire event, but wanted to just use my section). I had tried Audacity (recommended by JISC), but it produced a 10+MB file, which was too big even for self-hosted WordPress, so I was pleased to find WavePad. The result can be found on this page, or go straight to the MP3.
“WavePad is a full featured professional audio editor for Windows. Create and edit music, voice and other audio recordings. When editing audio files you can cut, copy, and paste parts of recordings and, if required, add effects like echo, amplification, and noise reduction and more. WavePad is a freeware WAV / MP3 editor but it also supports a number of other file formats including VOX, GSM, RA, AU, AIF, FLAC, and OGG and many more in the Master’s Edition. Recording and editing Mp3 and WAV files are freeware features.”