activity
20222026
most citedUniversal Score-based Speech Enhancement with High Content Preservation

2 citations · 3 across the 14 of their papers we have counts for

collaborators

14 papers

eess.AS2026

PASQA: Pitch-Accent-Focused Speech Quality Assessment Model Trained on Synthetic Speech with Accent Errors

Masaya Kawamura, Yuma Shirahata, Kentaro Mitsui +1

Existing mean opinion score (MOS) prediction models typically predict utterance-level naturalness MOS and can be insensitive to localized pitch-accent errors. We propose Pitch-Acce…

eess.AS2026

Investigating Human-Model Discrepancies in Speech Quality Assessment via Acoustic and Prosodic Perturbations

Masato Takagi, Masaya Kawamura, Reo Shimizu +1

Mean opinion score (MOS) prediction models are widely used as proxy metrics in text-to-speech (TTS) research, yet their ability to capture quality differences beyond acoustic fidel…

eess.AS2026

CC-G2PnP: Streaming Grapheme-to-Phoneme and prosody with Conformer-CTC for unsegmented languages

Yuma Shirahata, Ryuichi Yamamoto

We propose CC-G2PnP, a streaming grapheme-to-phoneme and prosody (G2PnP) model to connect large language model and text-to-speech in a streaming manner. CC-G2PnP is based on Confor…

eess.AS2026

Wave-Trainer-Fit: Neural Vocoder with Trainable Prior and Fixed-Point Iteration towards High-Quality Speech Generation from SSL features

Hien Ohnaka, Yuma Shirahata, Masaya Kawamura

We propose WaveTrainerFit, a neural vocoder that performs high-quality waveform generation from data-driven features such as SSL features. WaveTrainerFit builds upon the WaveFit vo…

cs.SD2025

Grapheme-Coherent Phonemic and Prosodic Annotation of Speech by Implicit and Explicit Grapheme Conditioning

Hien Ohnaka, Yuma Shirahata, Byeongseon Park +1

We propose a model to obtain phonemic and prosodic labels of speech that are coherent with graphemes. Unlike previous methods that simply fine-tune a pre-trained ASR model with the…

eess.AS2025

BitTTS: Highly Compact Text-to-Speech Using 1.58-bit Quantization and Weight Indexing

Masaya Kawamura, Takuya Hasumi, Yuma Shirahata +1

This paper proposes a highly compact, lightweight text-to-speech (TTS) model for on-device applications. To reduce the model size, the proposed model introduces two techniques. Fir…

eess.AS2024

Description-based Controllable Text-to-Speech with Cross-Lingual Voice Control

Ryuichi Yamamoto, Yuma Shirahata, Masaya Kawamura +1

We propose a novel description-based controllable text-to-speech (TTS) method with cross-lingual control capability. To address the lack of audio-description paired data in the tar…

eess.AS2024★ 2 cited

Universal Score-based Speech Enhancement with High Content Preservation

Robin Scheibler, Yusuke Fujita, Yuma Shirahata +1

We propose UNIVERSE++, a universal speech enhancement method based on score-based diffusion and adversarial training. Specifically, we improve the existing UNIVERSE model that deco…

eess.AS2024

Audio-conditioned phonemic and prosodic annotation for building text-to-speech models from unlabeled speech data

Yuma Shirahata, Byeongseon Park, Ryuichi Yamamoto +1

This paper proposes an audio-conditioned phonemic and prosodic annotation model for building text-to-speech (TTS) datasets from unlabeled speech samples. For creating a TTS dataset…

eess.AS2024

LibriTTS-P: A Corpus with Speaking Style and Speaker Identity Prompts for Text-to-Speech and Style Captioning

Masaya Kawamura, Ryuichi Yamamoto, Yuma Shirahata +2

We introduce LibriTTS-P, a new corpus based on LibriTTS-R that includes utterance-level descriptions (i.e., prompts) of speaking style and speaker-level prompts of speaker characte…

eess.AS2023★ 1 cited

PromptTTS++: Controlling Speaker Identity in Prompt-Based Text-to-Speech Using Natural Language Descriptions

Reo Shimizu, Ryuichi Yamamoto, Masaya Kawamura +4

We propose PromptTTS++, a prompt-based text-to-speech (TTS) synthesis system that allows control over speaker identity using natural language descriptions. To control speaker ident…

eess.AS2022

Lightweight and High-Fidelity End-to-End Text-to-Speech with Multi-Band Generation and Inverse Short-Time Fourier Transform

Masaya Kawamura, Yuma Shirahata, Ryuichi Yamamoto +1

We propose a lightweight end-to-end text-to-speech model using multi-band generation and inverse short-time Fourier transform. Our model is based on VITS, a high-quality end-to-end…

eess.AS2022

Period VITS: Variational Inference with Explicit Pitch Modeling for End-to-end Emotional Speech Synthesis

Yuma Shirahata, Ryuichi Yamamoto, Eunwoo Song +3

Several fully end-to-end text-to-speech (TTS) models have been proposed that have shown better performance compared to cascade models (i.e., training acoustic and vocoder models se…

eess.AS2022

Cross-Speaker Emotion Transfer for Low-Resource Text-to-Speech Using Non-Parallel Voice Conversion with Pitch-Shift Data Augmentation

Ryo Terashima, Ryuichi Yamamoto, Eunwoo Song +4

Data augmentation via voice conversion (VC) has been successfully applied to low-resource expressive text-to-speech (TTS) when only neutral data for the target speaker are availabl…