SoundBoost.ai

SoundBoost.ai offers AI-powered online audio mastering. Users upload a track (WAV or MP3), describe the sound they want with natural-language prompts, or select a Spotify reference track for loudness, width, and tone matching. The AI assembles a signal chain and returns each request as a new revision that can be compared via A/B. Six AI mastering engineer personas (Default, Sophia, Alex, Marcus, Luna, Kai) are described. The site also lists a free stem splitter and vocal remover, a music video generator, mobile iOS and Android apps, and free tools including a LUFS meter, loudness penalty tool, and metadata editor. The site states that it does not train its models on users' masters or share them with third parties.

Key features

• Text prompt-guided AI mastering
• Spotify link reference mastering matching loudness, width, and tone
• Revisions per request with A/B comparison against earlier versions
• Multiple AI mastering engineer personas
• Free stem splitter and vocal remover
• Music video generator
• iOS and Android app with sync across devices
• Export to MP3, WAV, FLAC, OGG, AAC, or M4A
• Browser-based LUFS meter and loudness penalty tools
• Metadata (ID3 tag) editor

Best suited for

• Independent musicians preparing releases
• Music studio users and professionals
• Bedroom producers seeking quick masters
• Remixers and musicians needing stems or acapellas

Pricing

Subscription plans described as weekly, monthly, and annual with unlimited mastering credits and stem splitter runs; specific prices not stated on the website