Author

Sungkyun Chang

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#machine learning Preprint Sep 2026

Synthesis and editing of multi-instrument audio mixtures using scalar-quantised latents with MIDI Span conditioning

SpanSynth-Edit is introduced, a flow-matching model for MIDI-guided synthesis and editing of multi-instrument audio mixtures using low-frame-rate scalar-quantised latents using low-frame-rate scalar-quantised latents.

Sungkyun Chang, K. Bhandari, Simon Dixon et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Finetuning Strategies for Querying Sounds by Vocal Imitation

This technical report describes our winning submission to the AES AIMLA 2025 Challenge on querying sound effects by vocal imitation. We investigate two complementary fine-tuning strategies: contrastive learning with a frozen, pretrained CED encoder, and joint contrastive-triplet learning with semi-hard negatives using...

Aditya Bhattacharjee, Christos Plachouras, Sungkyun Chang et al. · 0 citations