oTranscribe - A free web app to take the pain out of transcribing recorded media
Meludia - Listening exercises and to sharpen your ear and music theory skills
Listen N Write - Listen N Write can be used to play and transcribe ordinary audio and video recordings (WAV, MP3...
GNU Solfege - GNU Solfege is free music education software.
Speechnotes - Dictation Notepad - Free Online Speech Recognition Text Editor Web App for Chrome
Perfect Ear - A simple yet advanced application for improving your solfege skills.