English

LLM supervised Pre-training for Multimodal Emotion Recognition in Conversations

Audio and Speech Processing 2025-01-22 v1 Sound

Abstract

Emotion recognition in conversations (ERC) is challenging due to the multimodal nature of the emotion expression. In this paper, we propose to pretrain a text-based recognition model from unsupervised speech transcripts with LLM guidance. These transcriptions are obtained from a raw speech dataset with a pre-trained ASR system. A text LLM model is queried to provide pseudo-labels for these transcripts, and these pseudo-labeled transcripts are subsequently used for learning an utterance level text-based emotion recognition model. We use the utterance level text embeddings for emotion recognition in conversations along with speech embeddings obtained from a recently proposed pre-trained model. A hierarchical way of training the speech-text model is proposed, keeping in mind the conversational nature of the dataset. We perform experiments on three established datasets, namely, IEMOCAP, MELD, and CMU- MOSI, where we illustrate that the proposed model improves over other benchmarks and achieves state-of-the-art results on two out of these three datasets.

Keywords

Cite

@article{arxiv.2501.11468,
  title  = {LLM supervised Pre-training for Multimodal Emotion Recognition in Conversations},
  author = {Soumya Dutta and Sriram Ganapathy},
  journal= {arXiv preprint arXiv:2501.11468},
  year   = {2025}
}

Comments

ICASSP 2025; 5 pages, 4 figures, 2 tables

R2 v1 2026-06-28T21:11:19.055Z