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On the recordRead 9 Oct 202616 facts
Fire Lit AI Mastering
Saiwai-ku, Kawasaki, Kanagawa, Japan
Plans and prices
Free online automatic mastering
Free
No sign-up · WAV or AIFF · mono or stereo · runs in browser
Read 9 Oct 2026 · firelitai.com
On the record
- Company location and founding
- Subcontroller LLC lists its location as Kawasaki, Kanagawa, and says it was established on April 8, 2024.subcontroller.co.jp · read 9 Oct 2026
- Compare and export
- Users can A/B compare the original and mastered versions, then download the mastered file.firelitai.com · read 9 Oct 2026
- Glue compression
- Glue compression applies light bus compression to make elements in the stereo mix feel cohesive.firelitai.com · read 9 Oct 2026
- High-pass filter
- The high-pass filter cuts frequencies below a specified cutoff, with 80–120 Hz recommended for most tracks.firelitai.com · read 9 Oct 2026
- Input formats
- The tool accepts WAV or AIFF files and supports both stereo and mono audio.firelitai.com · read 9 Oct 2026
- Installation and account
- The tool requires no software installation or account, and is described as completely free.firelitai.com · read 9 Oct 2026
- Integrations
- The page mentions Spotify and Apple Music as streaming platforms whose loudness normalization and codec conversion are relevant to its release mastering settings.firelitai.com · read 9 Oct 2026
- Local processing
- Audio processing runs locally in the browser, and the page says files are not uploaded to a server.firelitai.com · read 9 Oct 2026
- Loudness-only mode
- Loudness Only Mode bypasses the EQ and glue compression stages and raises loudness with a True Peak limiter.firelitai.com · read 9 Oct 2026
- Operator
- Fire Lit AI identifies SubController LLC as its operator.firelitai.com · read 9 Oct 2026
- Purpose
- Fire Lit AI Mastering automatically adjusts loudness, EQ, and compression for audio files.firelitai.com · read 9 Oct 2026
- Release mastering
- The Master for Release option normalizes integrated loudness to –9 LUFS and sets a True Peak ceiling of –1.0 dB.firelitai.com · read 9 Oct 2026
- Tone cleanup
- Tone cleanup applies subtle cuts around 320 Hz and 3.2 kHz to reduce muddiness and harshness.firelitai.com · read 9 Oct 2026
- Use case
- The page describes mastering as a final step before music distribution to help finished mixes sound consistent across listening environments.firelitai.com · read 9 Oct 2026
