# Encoder-Side Neuron Identification and Amplification for Acoustic Perception in Large Audio-Language Models

Source: [arXiv](https://arxiv.org/abs/2607.11801v1)  
Feed7 permalink: https://feed7.dev/p/2607-11801v1-0m0m7wj  
Published: Unknown  
Trust: Needs Review (needs_review)

## Why Included

IAAN boosts selected audio-encoder neurons at inference, improving fine-grained speech perception across three models without retraining or labels.

## Source Summary

IAAN scores audio-encoder neurons by contrasting responses to a real waveform and a noise reference, then amplifies a small selected set during inference. It requires **no training or labels**.

## Practical Implication

Across ten non-semantic speech attributes, average accuracy rose by **25.7 points on Audio-Flamingo-3**, **21.4 on Qwen2.5-Omni**, and **9.7 on Kimi-Audio**. Builders with encoder access could test targeted activation changes before committing to fine-tuning.

## Agent-Ready Context

IAAN scores audio-encoder neurons by contrasting responses to a real waveform and a noise reference, then amplifies a small selected set during inference. It requires **no training or labels**.

Across ten non-semantic speech attributes, average accuracy rose by **25.7 points on Audio-Flamingo-3**, **21.4 on Qwen2.5-Omni**, and **9.7 on Kimi-Audio**. Builders with encoder access could test targeted activation changes before committing to fine-tuning.

The gains depended on intervening inside the encoder and choosing the right neurons. Post-encoder or language-model interventions offered little benefit or reduced accuracy, and the material does not establish results beyond the tested models and attributes.

## Context Map

- Layer: model
- Domains: audio
- Topics: generative-media

## Uncertainty

- The gains depended on intervening inside the encoder and choosing the right neurons. Post-encoder or language-model interventions offered little benefit or reduced accuracy, and the material does not establish results beyond the tested models and attributes.

## Agent Instruction

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