Auphonic

Auphonic is an automatic AI audio post-production service that acts as a one-click sound engineer for podcasters, video creators, broadcasters, and audiobook producers. Founded in 2013 in Graz, Austria, Auphonic has grown to over 2 million users including production teams at BBC Radio, iHeartRadio, and MSNBC. It processes your audio or video file automatically — applying noise reduction, adaptive loudness leveling, EQ, de-essing, filler word removal, and broadcast loudness normalization without requiring any audio engineering expertise.

Auphonic's processing pipeline covers all the steps a professional sound engineer would handle in post-production: its adaptive leveler balances volume between speakers, music, and speech throughout the recording; AutoEQ and bandwidth extension improve voice clarity; CryptoGuard-style noise and reverb reduction cleans up room noise and background interference; and automatic silence and filler word detection removes hesitations in multiple languages. For podcast interviews with multiple guests recorded on separate tracks, Auphonic's multitrack engine handles per-track denoising, noise gating, automatic ducking of music under speech, and mic bleed removal — producing a clean, broadcast-ready mixdown from raw multitrack recordings. Loudness output is normalized to your target standard: EBU R128, ATSC A/85, Apple Podcasts, Spotify, YouTube, Netflix, or ACX audiobooks.

Beyond audio cleanup, Auphonic includes multilingual speech-to-text transcription powered by a self-hosted Whisper model, generating shareable transcripts, automatic shownotes, and chapter markers. Workflow automation connects via watch folders, Zapier, Dropbox, Google Drive, and direct publishing to YouTube, Libsyn, Soundcloud, Spreaker, and PodBean. A free REST API and CLI enable integration into production pipelines and DAWs. Pricing starts with a genuinely generous free plan of 2 hours per month (all core algorithms, no credit card needed), scaling to paid plans from $11/month (annual) for 9 hours through to custom Business contracts for 1,000+ hours monthly.

Auphonic is best suited for solo podcasters who want one-click professional audio without learning a DAW, broadcast and radio teams needing EBU R128 compliance, audiobook narrators requiring ACX-compliant masters, video creators processing lecture or interview recordings, and production operations that need API-driven automated audio workflows at scale.

Free plan: 2 hours of processed audio per month, all basic algorithms included, but output files carry an Auphonic jingle. Recurring Credits (Monthly & One-Time tier, cheaper when billed yearly): Auphonic S at roughly $13/month (about $11/month billed annually) for 9 hours/month; Auphonic M at roughly $27/month ($23/month annually) for 21 hours/month; Auphonic L at roughly $53/month ($45/month annually) for 45 hours/month; Auphonic XL at roughly $105/month ($89/month annually) for 100 hours/month; an XXL tier covers 250 hours/month, and custom Business contracts exist beyond 1000 hours/month. One-Time Credits are also sold in blocks from 5 hours up to 3000+ hours, never expire, and can auto-renew when the balance runs low. Paid tiers unlock multilingual speech-to-text, automatic shownotes/chapters, watch folders, and batch productions; yearly and Business plans add priority processing, team accounts, and priority support. Billing is based on processed audio duration with a 3-minute minimum per production.