Question: Can I find an online audio mastering tool that uses AI to optimize my tracks for streaming services like Spotify and Apple Music?

If you want an AI-powered online audio mastering tool that will prepare your tracks for Spotify and Apple Music, the Diktatorial Suite is a good option. The suite offers one-click mastering with text prompts for high-quality audio tailored for Spotify and Apple Music. It's got more advanced controls like stereo width, analog warmth and saturation, and genre-specific settings. You can buy an annual suite subscription with 10 one-click mastering credits or month-by-month subscription plans.

Another option is Cryo Mix, which offers a suite of tools for both mixing and mastering. It's got features like pitch correction, final mix preparation and an AI Audio Separator to isolate individual stems from a single audio file. The mastering tool adjusts dynamics and EQ balance for industry-standard sound, so you can get good-sounding audio even if you're not a pro.

If you prefer a more automated approach, Songmastr lets you upload a song and a reference track and apply mastering based on the settings of the reference song. It's good for musicians and producers who want to automate their song mastering without having to install software. Songmastr accepts WAV and MP3 files, and you can keep full rights to your uploaded files, though you can buy credits for more mastering work.