Mirelo AI · Audio Processing

Mirelo Audio-to-MIDI

Decoder-only transformer that transcribes a full musical mix into per-instrument MIDI tracks by treating transcription as language modeling over 5-second mel-spectrogram chunks. Trained via synthetic pre-training (~1.45M MIDI files), fine-tuning on 11,000+ hours of real audio, then RL, with automatic instrument/chord/key detection and DAW export.