Muzaic.ai is a browser-based tool that scores video automatically. You give it a cut (or a folder of cuts); it returns a finished audio mix — music, SFX, ambience and voiceover as separate layers — mastered to broadcast spec, in roughly 30 seconds per clip.
What it actually does
The pipeline runs in four stages. First it analyses the video: scenes, objects, pacing, colour and sentiment. From that it builds an audio plan and commits each concept to a clear direction (the site's example: a string quartet under a battle scene) rather than averaging toward something inoffensive. Then it composes every layer to fit the picture and the other layers — SFX land on the action, ambience ducks under speech, the voiceover is drafted from your brief rather than read out. Finally it mixes and masters the result. Existing audio in the source can be kept, replaced or mixed under.
Output is three concepts per clip, exported as MP3 or WAV. Layer balance is adjusted inside Muzaic before export; the deliverable is the finished mix, not separate stems.
The commercial angle
Pricing is metered in minutes of finished audio, not per track or per download; downloads are unlimited. Personal is free for 10 minutes a month, non-commercial only. Creator ($45/month) covers your own brand and paid ads. Studio ($249/month) is for agencies: the licence travels to the client and the legal cover extends to them too. Enterprise adds TV, radio, cinema and OOH, plus a custom contract, DPA and SLA.
What it is not
It is not a music-generation toy. The free tier exists to test the workflow on your own footage; nothing from it may be published. The target user is a team producing hundreds of ad variants a month, where the audio step is the bottleneck.
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LuvLang.studio
LuvLang.studio offers a web-based audio mastering solution tailored for independent artists, producers, and podcasters. Users can upload their mixes to be processed through a comprehensive mastering chain with as many as 16 distinct stages, including EQ, multiband compression, harmonic enhancement, and more, ensuring a professional finish. Before any payment is made, a full A/B preview allows users to hear the differences between the original and mastered versions. Each master is evaluated with a real-time score across ten categories, providing insights on mix improvements, along with loudness metering and other essential metrics. Users can select their preferred loudness targets suitable for various platforms like Spotify, Apple Music, and vinyl, and export their projects in formats such as WAV, FLAC, AAC, or MP3, up to an impressive 32-bit/192 kHz. The platform also includes advanced features like stem separation, reference track matching, and ensuring album cohesion. With a straightforward pricing model starting at $14.99 per track and no subscription fees required, an option for hand-mastered releases by a professional mastering engineer is also offered. This combination of features makes LuvLang.studio an invaluable tool for those looking to elevate their audio productions.
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Euphona
Euphona is an AI audio production platform that runs in the browser. Producers, engineers, musicians, podcasters and studios upload a mix, stems or a raw recording, and Euphona analyses it a single time: loudness and dynamics across the track, spectral balance, key and tempo, transients and any damage. Every tool then works from that shared analysis. AI mastering returns a measured loudness report and keeps a -1.0 dBTP true-peak ceiling by default. Stem separation splits a finished track into up to six stems. Restoration removes hum, clicks, noise, clipping and room sound. Vocal tuning, mixing from your own stems and binaural spatial audio for headphones complete the set. Each result plays back level-matched against the original, so you compare sound rather than volume. Developers can call the same engine through a REST API, with free test-mode keys. Free browser tools that need no account include a loudness checker, BPM and key finder, spectrum and stereo width analysers, a clipping detector and a vocal remover. Audio you upload is never used to train models. Plans start free with 10 minutes of processing; paid plans are $15, $29 and $79 per month.
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