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We propose a novel method for generating high-resolution videos of talking-heads from speech audio and a single 'identity' image. Our method is based on a convolutional neural network model that incorporates a pre-trained StyleGAN…

Computer Vision and Pattern Recognition · Computer Science 2022-09-12 Mohammed M. Alghamdi , He Wang , Andrew J. Bulpitt , David C. Hogg

Many speech enhancement (SE) methods rely on continuous representations. Recently, discrete audio tokens have been explored to enable autoregressive generation for SE. However, it remains unclear whether discretization itself consistently…

Sound · Computer Science 2026-03-24 Jingyi Li , Luca Della Libera , Mirco Ravanelli , Cem Subakan

Speech signals, typically sampled at rates in the tens of thousands per second, contain redundancies, evoking inefficiencies in sequence modeling. High-dimensional speech features such as spectrograms are often used as the input for the…

This work adapts two recent architectures of generative models and evaluates their effectiveness for the conversion of whispered speech to normal speech. We incorporate the normal target speech into the training criterion of…

Discrete audio tokens have recently gained considerable attention for their potential to bridge audio and language processing, enabling multimodal language models that can both generate and understand audio. However, preserving key…

A good language model starts with a good tokenizer. Tokenization is especially important for speech modeling, which must handle continuous signals that mix linguistic and non-linguistic information. A speech tokenizer should extract…

Computation and Language · Computer Science 2026-05-06 Zhijie Huang , Stephen McIntosh , Daisuke Saito , Nobuaki Minematsu

Current large speech language models are mainly based on semantic tokens from discretization of self-supervised learned representations and acoustic tokens from a neural codec, following a semantic-modeling and acoustic-synthesis paradigm.…

Sound · Computer Science 2025-10-16 Xue Jiang , Xiulian Peng , Yuan Zhang , Yan Lu

Neural audio codecs, leveraging quantization algorithms, have significantly impacted various speech/audio tasks. While high-fidelity reconstruction is paramount for human perception, audio coding for machines (ACoM) prioritizes efficient…

Sound · Computer Science 2025-08-06 Anastasia Kuznetsova , Inseon Jang , Wootaek Lim , Minje Kim

Speech Language Models (SpeechLMs) model tokenized speech to capture both semantic and acoustic information. When neural audio codecs based on Residual Vector Quantization (RVQ) are used as audio tokenizers, they produce multiple discrete…

Computation and Language · Computer Science 2026-03-06 Issa Sugiura , Shuhei Kurita , Yusuke Oda , Ryuichiro Higashinaka

Recent advancements in speech-language models have yielded significant improvements in speech tokenization and synthesis. However, effectively mapping the complex, multidimensional attributes of speech into discrete tokens remains…

Language model (LM) based audio generation frameworks, e.g., AudioLM, have recently achieved new state-of-the-art performance in zero-shot audio generation. In this paper, we explore the feasibility of LMs for zero-shot voice conversion. An…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-22 Zhichao Wang , Yuanzhe Chen , Lei Xie , Qiao Tian , Yuping Wang

Although speech recognition algorithms have developed quickly in recent years, achieving high transcription accuracy across diverse audio formats and acoustic environments remains a major challenge. This work explores how incorporating…

Sound · Computer Science 2025-03-31 Aniket Abhishek Soni

The rapid advancement of speech generation technologies in the era of large language models (LLMs) has established discrete speech tokens as a foundational paradigm for speech representation. These tokens, characterized by their discrete,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-15 Yiwei Guo , Zhihan Li , Hankun Wang , Bohan Li , Chongtian Shao , Hanglei Zhang , Chenpeng Du , Xie Chen , Shujie Liu , Kai Yu

With recent research advancements, deep learning models are becoming attractive and powerful choices for speech enhancement in real-time applications. While state-of-the-art models can achieve outstanding results in terms of speech quality…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-20 Sebastian Braun , Hannes Gamper , Chandan K. A. Reddy , Ivan Tashev

Large-scale text-to-speech (TTS) systems are limited by the scarcity of clean, multilingual recordings. We introduce Sidon, a fast, open-source speech restoration model that converts noisy in-the-wild speech into studio-quality speech and…

Sound · Computer Science 2026-01-27 Wataru Nakata , Yuki Saito , Yota Ueda , Hiroshi Saruwatari

Children's speech recognition is considered a low-resource task mainly due to the lack of publicly available data. There are several reasons for such data scarcity, including expensive data collection and annotation processes, and data…

Computation and Language · Computer Science 2024-06-25 Vrunda N. Sukhadia , Shammur Absar Chowdhury

Modern language models are trained almost exclusively on token sequences produced by a fixed tokenizer, an external lossless compressor often over UTF-8 byte sequences, thereby coupling the model to that compressor. This work introduces…

Computation and Language · Computer Science 2026-05-15 Lin Zheng , Xinyu Li , Qian Liu , Xiachong Feng , Lingpeng Kong

Language models (LMs) have recently flourished in natural language processing and computer vision, generating high-fidelity texts or images in various tasks. In contrast, the current speech generative models are still struggling regarding…

Sound · Computer Science 2023-10-13 Xinfa Zhu , Yuanjun Lv , Yi Lei , Tao Li , Wendi He , Hongbin Zhou , Heng Lu , Lei Xie

Neural speech synthesis algorithms are a promising new approach for coding speech at very low bitrate. They have so far demonstrated quality that far exceeds traditional vocoders, at the cost of very high complexity. In this work, we…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-01 Jean-Marc Valin , Jan Skoglund

Discretized representations of speech signals are efficient alternatives to continuous features for various speech applications, including automatic speech recognition (ASR) and speech language models. However, these representations, such…

Sound · Computer Science 2026-02-05 Takanori Ashihara , Shota Horiguchi , Kohei Matsuura , Tsubasa Ochiai , Marc Delcroix