espnet-tts-sample

ljspeech.transformer.v2

Creator

• Tomoki Hayashi (Nagoya University) <kan-bayashi>

Abstract

This is tts demo of The LJ Speech Dataset [0].

tts1 recipe

tts1 recipe is based on Tacotron2 [1] (spectrogram prediction network) w/o WaveNet. Tacotron2 generates log mel-filter bank from text and then converts it to linear spectrogram using inverse mel-basis. Finally, phase components are recovered with Griffin-Lim.

(2019/06/16) we also support TTS-Transformer [3].
(2019/06/17) we also support Feed-forward Transformer [4].

tts2 recipe

tts2 recipe is based on Tacotron2’s spectrogram prediction network [1] and Tacotron’s CBHG module [2]. Instead of using inverse mel-basis, CBHG module is used to convert log mel-filter bank to linear spectrogram. The recovery of the phase components is the same as tts1.

Model

v.0.4.0: transformer.v2

• 1024 pt window
• 256 pt shift
• GL 1000 iters
• R=3
• Small

Environments

• date: Sun Jun 16 10:03:47 JST 2019
• python version: Python 3.7.3
• espnet version: espnet 0.3.1
• chainer version: chainer 5.0.0
• pytorch version: pytorch 1.0.1.post2
• Git hash: 267da3161cefeae72e9a44bd15e74c0d18591fb6

Model files

• model link: https://drive.google.com/open?id=1xxAwPuUph23RnlC5gym7qDM02ZCW9Unp
• training config file: conf/tuning/train_pytorch_transformer.v2.yaml
• decoding config file: conf/decode.yaml
• cmvn file: data/train_no_dev/cmvn.ark
• e2e file: exp/train_no_dev_pytorch_train_pytorch_transformer.v2/results/model.last1.avg.best
• e2e JSON file: exp/train_no_dev_pytorch_train_pytorch_transformer.v2/results/model.json
• dict file: data/lang_1char/train_no_dev_units.txt

Audio samples

1. ground_truth: Recorded speech
2. transformer.v2_GL: Synthesized speech (Feature generetion:transformer.v2, Waveform synthesis: Griffin-Lim algorithm)

* The recommended browser for Audio player: Google Chrome

Sample1

LJ050-0029 “THAT IS REFLECTED IN DEFINITE AND COMPREHENSIVE OPERATING PROCEDURES. “

ground_truth	transformer.v2_GL

Attention wight	Probility

Sample2

LJ050-0030 “THE COMMISSION ALSO RECOMMENDS “

ground_truth	transformer.v2_GL

Attention wight	Probility

Sample3

LJ050-0031 “THAT THE SECRET SERVICE CONSCIOUSLY SET ABOUT THE TASK OF INCULCATING AND MAINTAINING THE HIGHEST STANDARD OF EXCELLENCE AND ESPRIT, FOR ALL OF ITS PERSONNEL. “

ground_truth	transformer.v2_GL

Attention wight	Probility

Sample4

LJ050-0032 “THIS INVOLVES TIGHT AND UNSWERVING DISCIPLINE AS WELL AS THE PROMOTION OF AN OUTSTANDING DEGREE OF DEDICATION AND LOYALTY TO DUTY. “

ground_truth	transformer.v2_GL

Attention wight	Probility

Sample5

LJ050-0033 “THE COMMISSION EMPHASIZES THAT IT FINDS NO CAUSAL CONNECTION BETWEEN THE ASSASSINATION “

ground_truth	transformer.v2_GL

Attention wight	Probility

Other samples

https://drive.google.com/open?id=1TqY5cvA2azhl7Xi3E1LFRpsTajlHxO_P

Synthesize speech by arbitrary text

1. Go to Google colab (created by Github)
2. Run “0. Installation”
3. Run “3. Demonstration of the use of pretrained models”

* The recommended browser for Google colab: Google Chrome

Please modify the option about tts model
Before: !../../../utils/synth_wav.sh --models ljspeech.fastspeech.v1 example.txt
After: !../../../utils/synth_wav.sh --models ljspeech.transformer.v2 example.txt

References

• [0] “The LJ Speech Dataset,” https://keithito.com/LJ-Speech-Dataset/.
• [1] Shen, Jonathan, et al. “Natural TTS synthesis by conditioning wavenet on mel spectrogram predictions.” arXiv preprint arXiv:1712.05884 (2017).
• [2] Wang, Yuxuan, et al. “Tacotron: Towards end-to-end speech synthesis.” arXiv preprint arXiv:1703.10135 (2017).
• [3] Li, Naihan, et al. “Close to human quality TTS with transformer.” arXiv preprint arXiv:1809.08895 (2018).
• [4] Ren, Yi, et al. “FastSpeech: Fast, Robust and Controllable Text to Speech.” arXiv preprint arXiv:1905.09263 (2019).