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Heiga Zen

17 accepted papers

2025

SimulTron: On-Device Simultaneous Speech to Speech Translation

ICASSP 2025accepted

Simultaneous speech-to-speech translation (S2ST) holds the promise of breaking down communication barriers and enabling fluid conversations across languages. However, achieving accurate, real-time translation through mobile devices remains a major challenge. We introduce SimulTron, a novel S2ST arch…

Cited by 0SourceScholar
2024

Extending Multilingual Speech Synthesis to 100+ Languages without Transcribed Data

ICASSP 2024accepted

Collecting high-quality studio recordings of audio is challenging, which limits the language coverage of text-to-speech (TTS) systems. This paper proposes a framework for scaling a multilingual TTS model to 100+ languages using found data without supervision. The proposed framework combines speech-t…

Cited by 0SourceScholar
2024

Geometric-Averaged Preference Optimization for Soft Preference Labels

NeurIPS 2024poster

Many algorithms for aligning LLMs with human preferences assume that human preferences are binary and deterministic. However, human preferences can vary across individuals, and therefore should be represented distributionally. In this work, we introduce the distributional soft preference labels and…

Cited by 7SourcePDFScholar
2024

Translatotron 3: Speech to Speech Translation with Monolingual Data

ICASSP 2024accepted

This paper presents Translatotron 3, a novel approach to unsupervised direct speech-to-speech translation from monolingual speech-text datasets by combining masked autoencoder, unsupervised embedding mapping, and back-translation. Experimental results in speech-to-speech translation tasks between Sp…

Cited by 0SourceScholar
2023

Lightweight, Multi-Speaker, Multi-Lingual Indic Text-to-Speech

ICASSP 2023accepted

The Lightweight, Multi-speaker, Multi-lingual Indic Text-to-Speech (LIMMITS’23) challenge is organized as part of the ICASSP 2023 signal processing grand challenge. LIMMITS’23 aims at the development of a lightweight, multi-speaker, multi-lingual Text to Speech (TTS) model using datasets in Marathi,…

Cited by 0SourceScholar
2023

SayTap: Language to Quadrupedal Locomotion

CoRL 2023poster

Large language models (LLMs) have demonstrated the potential to perform high-level planning. Yet, it remains a challenge for LLMs to comprehend low-level commands, such as joint angle targets or motor torques. This paper proposes an approach to use foot contact patterns as an interface that bridges…

Cited by 45SourcecodeScholar
2023

Virtuoso: Massive Multilingual Speech-Text Joint Semi-Supervised Learning for Text-to-Speech

ICASSP 2023accepted

This paper proposes Virtuoso, a massively multilingual speech–text joint semi-supervised learning framework for text-to-speech synthesis (TTS) models. Existing multilingual TTS typically supports tens of languages, which are a small fraction of the thousands of languages in the world. One difficulty…

Cited by 0SourceScholar
2021

Parallel Tacotron: Non-Autoregressive and Controllable TTS

ICASSP 2021accepted

Although neural end-to-end text-to-speech models can synthesize highly natural speech, there is still room for improvements to its efficiency and naturalness. This paper proposes a non-autoregressive neural text-to-speech model augmented with a variational autoencoder-based residual encoder. This mo…

Cited by 0SourceScholar
2021

WaveGrad: Estimating Gradients for Waveform Generation

ICLR 2021poster

This paper introduces WaveGrad, a conditional model for waveform generation which estimates gradients of the data density. The model is built on prior work on score matching and diffusion probabilistic models. It starts from a Gaussian white noise signal and iteratively refines the signal via a grad…

2020

Fully-Hierarchical Fine-Grained Prosody Modeling For Interpretable Speech Synthesis

ICASSP 2020accepted

This paper proposes a hierarchical, fine-grained and interpretable latent variable model for prosody based on the Tacotron 2 text-to-speech model. It achieves multi-resolution modeling of prosody by conditioning finer level representations on coarser level ones. Additionally, it imposes hierarchical…

Cited by 0SourceScholar
2020

Generating Diverse and Natural Text-to-Speech Samples Using a Quantized Fine-Grained VAE and Autoregressive Prosody Prior

ICASSP 2020accepted

Recent neural text-to-speech (TTS) models with fine-grained latent features enable precise control of the prosody of synthesized speech. Such models typically incorporate a fine-grained variational autoencoder (VAE) structure, extracting latent features at each input token (e.g., phonemes). However,…

Cited by 0SourceScholar
2019

Hierarchical Generative Modeling for Controllable Speech Synthesis

ICLR 2019poster

This paper proposes a neural end-to-end text-to-speech (TTS) model which can control latent attributes in the generated speech that are rarely annotated in the training data, such as speaking style, accent, background noise, and recording conditions. The model is formulated as a conditional generati…

Cited by 297SourcePDFScholar
2019

Sample Efficient Adaptive Text-to-Speech

ICLR 2019poster

We present a meta-learning approach for adaptive text-to-speech (TTS) with few data. During training, we learn a multi-speaker model using a shared conditional WaveNet core and independent learned embeddings for each speaker. The aim of training is not to produce a neural network with fixed weights,…

Cited by 177SourcePDFScholar
2018

Parallel WaveNet: Fast High-Fidelity Speech Synthesis

ICML 2018oral

The recently-developed WaveNet architecture is the current state of the art in realistic speech synthesis, consistently rated as more natural sounding for many different languages than any previous system. However, because WaveNet relies on sequential generation of one audio sample at a time, it is…

Cited by 1053SourcePDFScholar
2015

Directly modeling speech waveforms by neural networks for statistical parametric speech synthesis

ICASSP 2015accepted

This paper proposes a novel approach for directly-modeling speech at the waveform level using a neural network. This approach uses the neural network-based statistical parametric speech synthesis framework with a specially designed output layer. As acoustic feature extraction is integrated to acoust…

Cited by 0SourceScholar
2015

Unidirectional long short-term memory recurrent neural network with recurrent output layer for low-latency speech synthesis

ICASSP 2015accepted

Long short-term memory recurrent neural networks (LSTM-RNNs) have been applied to various speech applications including acoustic modeling for statistical parametric speech synthesis. One of the concerns for applying them to text-to-speech applications is its effect on latency. To address this concer…

Cited by 0SourceScholar