Cited by 754Speech Recognition and SynthesisSpeech and Audio ProcessingVoice and Speech Disorders

Neural Speech Synthesis with Transformer Network

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Li, Naihan, Liu, Shujie, Liu, Yanqing, Zhao, Sheng, Liu, Ming·2019·Proceedings of the AAAI Conference on Artificial Intelligence

Abstract

Although end-to-end neural text-to-speech (TTS) methods (such as Tacotron2) are proposed and achieve state-of-theart performance, they still suffer from two problems: 1) low efficiency during training and inference; 2) hard to model long dependency using current recurrent neural networks (RNNs). Inspired by the success of Transformer network in neural machine translation (NMT), in this paper, we introduce and adapt the multi-head attention mechanism to replace the RNN structures and also the original attention mechanism in Tacotron2. With the help of multi-head self-attention, the hidden states in the encoder and decoder are constructed in parallel, which improves training efficiency. Meanwhile, any two inputs at different times are connected directly by a self-attention mechanism, which solves the long range dependency problem effectively. Using phoneme sequences as input, our Transformer TTS network generates mel spectrograms, followed by a WaveNet vocoder to output the final audio results. Experiments are conducted to test the efficiency and performance of our new network. For the efficiency, our Transformer TTS network can speed up the training about 4.25 times faster compared with Tacotron2. For the performance, rigorous human tests show that our proposed model achieves state-of-the-art performance (outperforms Tacotron2 with a gap of 0.048) and is very close to human quality (4.39 vs 4.44 in MOS).

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Authors
Li, N., Liu, S., Liu, Y., Zhao, S., & Liu, M.
Affiliations
  • University of Electronic Science and Technology of China (CN)
  • Microsoft Research Asia (China) (CN)
  • Microsoft (United States) (US)
Venue
Proceedings of the AAAI Conference on Artificial Intelligence
Published
2019-07-17
Volume
33
Issue
01
Pages
6706-6713
ISSN
  • 2159-5399 (ISSN-L)
  • 2374-3468
OpenAlex
W2903739847
Cited by
754
References
31
Citations by year
2026: 28 · 2025: 88 · 2024: 103 · 2023: 131 · 2022: 138 · 2021: 165 · 2020: 89 · 2019: 11 · 2018: 1
FWCI
38.55
Type
conference paper
Language
en
Open access
Locations
  • Proceedings of the AAAI Conference on Artificial Intelligence (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • AAAI Publications (The Association for the Advancement of Artificial Intelligence (AAAI)) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Natural Science Foundation of China (61572113)
  • Fundamental Research Funds for the Central Universities (ZYGX2016J084, ZYGX2016J195, ZYGX2015J155, 61572113)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech Recognition and Synthesis
  • Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
  • Health Sciences › Medicine › Physiology › Voice and Speech Disorders
Keywords
neural text-to-speech, transformer models, multi-head self-attention, Tacotron2, long-range dependencies, mel-spectrogram generation, training efficiency, phoneme sequences

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