EnCodec

Meta AI

Structures found in this family (2)

Linear Direction, Circle

By model (1)

EnCodec

Linear Direction, Circle

Observations (4)

Audio-encoder cosine sensitivity diverges from probe decodability

A single transport vector between clean and degraded latent centroids of neural audio codecs matches large diffusion models on music bandwidth extension

Explicit unit-circle and neighbor losses impose a 2D timbre space

SAE probe directions decode a pitch>loudness>timbre hierarchy and steer audio

Papers

Probing Spatial Structure in Pretrained Audio Representations (2026), On the Geometry of Music Bandwidth Extension in Latent Spaces of Audio Codecs (2026), Pitch-Conditioned Instrument Sound Synthesis from an Interactive Timbre Latent Space (2025), Learning Interpretable Features in Audio Latent Spaces via Sparse Autoencoders (2025)