Auphonic

Auphonic is an automated audio post-production service. You upload a recording, and it adjusts levels between speakers, reduces noise and hum, balances loudness to broadcast standards and exports in the formats you need. It also offers transcription, chapter marks and publishing to platforms, which makes it a one-stop step for podcast workflows. Presets and an API let you process many files in the same way. Auphonic provides a free monthly allowance of processing and paid credits or subscriptions beyond that. It suits podcasters and radio makers who want consistent sound without manual mixing.