Working Class Audio is an interview-format podcast hosted by audio engineer Matt Boudreaux, who talks one-on-one with a different recording professional most episodes, typically running 60 to 80 minutes. Guests are working engineers, producers, mixers, and mastering engineers spanning music production, film and game audio, and archival restoration, rather than celebrity musicians. A consistent arc across episodes is career origin: guests describe unpaid internships, cold-calling studios, self-taught home recording setups, and manual labor jobs before landing steady studio work. From there conversations move into practical craft, including drum sound replacement on metal records, tape baking and cleaning for archival reissues, signal-path philosophy, and choices between tube gear, modeling plugins, and AI tools. Several episodes center on studio business decisions, such as financing a multi-room facility, setting rates, and avoiding debt tied to gear acquisition. The show also carries a recurring historical thread, with guests who worked on notable records or with well-known studios and labels. Sponsor mentions for audio gear and services (Grace Design, Audioscape, SoundCredit, DistroKid, ADK Mics, Kali Audio) appear in most episodes but are not the focus of the conversations. The show benefits working and aspiring audio engineers, home studio owners, and musicians curious about the production side of recorded music. Matt Boudreaux keeps the tone collegial and shop-floor rather than promotional, treating guests as working professionals rather than success-story figures.