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Re-Bottleneck: Latent Re-Structuring for Neural Audio Autoencoders

Dimitrios Bralios, Jonah Casebeer, Paris Smaragdis

2025-07-11

Re-Bottleneck: Latent Re-Structuring for Neural Audio Autoencoders

Summary

This paper talks about Re-Bottleneck, a new way to improve neural audio autoencoders by changing the hidden compressed part so users can control its structure without breaking its ability to recreate the original sound.

What's the problem?

Autoencoders usually have a fixed way of compressing data which might not work well for all tasks, especially if you want the compressed data to follow certain rules or patterns to make it easier to use later.

What's the solution?

The researchers created the Re-Bottleneck framework that modifies pre-trained autoencoders by rearranging and structuring the hidden compressed information according to user needs, boosting performance in different audio tasks while keeping the quality of the recreated sound high.

Why it matters?

This matters because it makes audio AI models more adaptable and powerful for various applications like voice processing, music generation, or noise removal, without needing to train new models from scratch.

Abstract

A Re-Bottleneck framework modifies pre-trained autoencoders to introduce user-defined latent structure, enhancing performance in diverse downstream applications without sacrificing reconstruction quality.