Algorithms for Automatic Accentuation and Transcription of Russian Texts in Speech Recognition Systems

Olga Yakovenko, Ivan Bondarenko, Mariya Borovikova, Daniil Vodolazsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2 Citations (Scopus)


This paper presents an overview of rule-based system for automatic accentuation and phonemic transcription of Russian texts for speech connected tasks, such as Automatic Speech Recognition (ASR). Two parts of the developed system, accentuation and transcription, use different approaches to achieve correct phonemic representations of input phrases. Accentuation is based on “Grammatical dictionary of the Russian language” of A.A. Zaliznyak and wiktionary corpus. To distinguish homographs, the accentuation system also utilises morphological information of the sentences based on Recurrent Neural Networks (RNN). Transcription algorithms apply the rules presented in the monograph of B.M. Lobanov and L.I. Tsirulnik “Computer Synthesis and Voice Cloning”. The rules described in the present paper are implemented in an open-source module, which can be of use to any scientific study connected to ASR or Speech To Text (STT) tasks. Automatically marked up text annotations of the Russian Voxforge database were used as training data for an acoustic model in CMU Sphinx. The resulting acoustic model was evaluated on cross-validation, mean Word Accuracy being 71.2%. The developed toolkit is written in the Python language and is accessible on GitHub for any researcher interested.

Original languageEnglish
Title of host publicationSpeech and Computer - 20th International Conference, SPECOM 2018, Proceedings
EditorsA Karpov, O Jokisch, R Potapova
PublisherSpringer-Verlag GmbH and Co. KG
Number of pages10
ISBN (Print)9783319995786
Publication statusPublished - 1 Jan 2018
Event20th International Conference on Speech and Computer, SPECOM 2018 - Leipzig, Germany
Duration: 18 Sep 201822 Sep 2018

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume11096 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference20th International Conference on Speech and Computer, SPECOM 2018


  • Accentuation
  • Automatic speech recognition
  • Corpora
  • Rule-based phonemic transcription

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