Speech-to-LaTeX: New Models and Datasets for Converting Spoken Equations
  and Sentences
Authors: name: Dmitrii Korzh; name: Dmitrii Tarasov; name: Artyom Iudin; name: Elvir Karimov; name: Matvey Skripkin; name: Nikita Kuzmin; name: Andrey Kuznetsov; name: Oleg Y. Rogov; name: Ivan Oseledets
Published: 2025-08-05 15:11:37

Abstract: Conversion of spoken mathematical expressions is a challenging task that
involves transcribing speech into a strictly structured symbolic representation
while addressing the ambiguity inherent in the pronunciation of equations.
Although significant progress has been achieved in automatic speech recognition
(ASR) and language models (LM), the problem of converting spoken mathematics
into LaTeX remains underexplored. This task directly applies to educational and
research domains, such as lecture transcription or note creation. Based on ASR
post-correction, prior work requires 2 transcriptions, focuses only on isolated
equations, has a limited test set, and provides neither training data nor
multilingual coverage. To address these issues, we present the first fully
open-source large-scale dataset, comprising over 66,000 human-annotated audio
samples of mathematical equations and sentences in both English and Russian,
drawn from diverse scientific domains. In addition to the ASR post-correction
models and few-shot prompting, we apply audio language models, demonstrating
comparable character error rate (CER) results on the MathSpeech benchmark (28%
vs. 30%) for the equations conversion. In contrast, on the proposed
S2L-equations benchmark, our models outperform the MathSpeech model by a
substantial margin of more than 40 percentage points, even after accounting for
LaTeX formatting artifacts (27% vs. 64%). We establish the first benchmark for
mathematical sentence recognition (S2L-sentences) and achieve an equation CER
of 40%. This work lays the groundwork for future advances in multimodal AI,
with a particular focus on mathematical content recognition.