Question: Can you recommend an online audio mastering service that uses AI to produce high-quality sound?

If you're looking for an online audio mastering service that uses AI to produce high-quality sound, Maastr is a good option. The service lets you upload audio files and then automatically process them with AI for a professionally mastered sound in a matter of minutes. It's easy to use, even if you're not a tech whiz, and comes with features like detailed mix notes for feedback and the ability to store and compare versions of your tracks.

Another option is the Diktatorial Suite, geared for pros and musicians. It offers instant mastering with text prompts to get hi-fi sound and includes an option to optimize for streaming services like Spotify and Apple Music. The suite also offers genre-specific sound options, as well as more advanced options like stereo width, analog warmth and saturation, so you can get the sound you need for your audio.

If you prefer a stem-based approach, eMastered could be the way to go. The service uses AI to analyze audio and improve sound quality fast, and it includes Stemify, which breaks tracks down into high-quality stems for instrumentals or a cappellas. It has a variety of plans to accommodate different levels of production, from beginners to serious producers.

You might also be interested in LANDR, an all-in-one music production service that includes AI-powered mastering. LANDR has tools for creating music, distributing it and collaborating with others, so it's a good option for musicians and producers. Its big AI engine is good at mastering, and it can distribute music to more than 150 streaming services.