audacity-extra now provides a sleek dark themed version of the Audacity open source sound editor. The project experiments with Audacity variations. There's a vowel-sound target-practice display for language learners and an analog waveform data logger for embedded systems.
The SingIt Lyric Displayer is an XMMS plugin which displays formatted lyrics, including id3v2xx lyrics. It consists of the displayer and an integrated editor which allows one to easily insert time stamps, edit the text, and export & strip HTML.
Free Open Source VoiceXML editor programmed in Java (Swing). The VoiceXML document is regularly parsed, a tree view is built and syntax errors are reported in a specific table.
Audacity Policial (aka Audacity Police) is an extension of Audacity sound editor that was created to help police and justice investigations based on phone call and environmental recordings, supporting audio analysis and transcription.