Auphonic

Automates professional audio enhancement, leveling, noise reduction, and mastering for spoken content. The automatic audio post production webservice. It supports common formats like WAV, MP3, AAC, FLAC, and others, including multitrack inputs for separate processing. New users get a monthly allowance of free processing hours to test features without payment. It handles music under speech well with ducking, though it focuses primarily on spoken-word optimization rather than full music mastering. Via watch folders, Zapier, API integrations, or direct deployment to platforms like YouTube and podcast hosts. It performs reliably in supported languages for common fillers like um or ah, though very fast or accented speech may occasionally miss some. Algorithms aim to preserve natural tone while fixing issues, and most users report clean, authentic-sounding output.