From TOWER to SPIRE: Adding the Speech Modality to a Translation-Specialist LLM

Fuente: arXiv
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Main Authors: Ambilduke, Kshitij, Peters, Ben, Sannigrahi, Sonal, Keshwani, Anil, Lam, Tsz Kin, Martins, Bruno, Martins, André F. T., Boito, Marcely Zanon
Format: Preprint
Published: 2025
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author Ambilduke, Kshitij
Peters, Ben
Sannigrahi, Sonal
Keshwani, Anil
Lam, Tsz Kin
Martins, Bruno
Martins, André F. T.
Boito, Marcely Zanon
author_facet Ambilduke, Kshitij
Peters, Ben
Sannigrahi, Sonal
Keshwani, Anil
Lam, Tsz Kin
Martins, Bruno
Martins, André F. T.
Boito, Marcely Zanon
contents We introduce Spire, a speech-augmented language model (LM) capable of both translating and transcribing speech input from English into 10 other languages as well as translating text input in both language directions. Spire integrates the speech modality into an existing multilingual LM via speech discretization and continued pre-training using only 42.5K hours of speech. In particular, we adopt the pretraining framework of multilingual LMs and treat discretized speech input as an additional translation language. This approach not only equips the model with speech capabilities, but also preserves its strong text-based performance. We achieve this using significantly less data than existing speech LMs, demonstrating that discretized speech input integration as an additional language is feasible during LM adaptation. We make our code and models available to the community.
format Preprint
id arxiv_https___arxiv_org_abs_2503_10620
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle From TOWER to SPIRE: Adding the Speech Modality to a Translation-Specialist LLM
Ambilduke, Kshitij
Peters, Ben
Sannigrahi, Sonal
Keshwani, Anil
Lam, Tsz Kin
Martins, Bruno
Martins, André F. T.
Boito, Marcely Zanon
Computation and Language
We introduce Spire, a speech-augmented language model (LM) capable of both translating and transcribing speech input from English into 10 other languages as well as translating text input in both language directions. Spire integrates the speech modality into an existing multilingual LM via speech discretization and continued pre-training using only 42.5K hours of speech. In particular, we adopt the pretraining framework of multilingual LMs and treat discretized speech input as an additional translation language. This approach not only equips the model with speech capabilities, but also preserves its strong text-based performance. We achieve this using significantly less data than existing speech LMs, demonstrating that discretized speech input integration as an additional language is feasible during LM adaptation. We make our code and models available to the community.
title From TOWER to SPIRE: Adding the Speech Modality to a Translation-Specialist LLM
topic Computation and Language
url https://arxiv.org/abs/2503.10620