activity
20182026
most citedComputer-assisted Pronunciation Training -- Speech synthesis is almost all you need

39 citations · 62 across the 26 of their papers we have counts for

collaborators

27 papers

cs.AI2026

Nemotron-Labs-3-Puzzle-75B-A9B: Compressing Hybrid MoE LLMs

Akhiad Bercovich, Talor Abramovich, Daniel Afrimi +67

We present Nemotron-Labs-3-Puzzle-75B-A9B, a compressed variant of Nemotron-3-Super optimized for interactive deployment. We designed the model to maximize server throughput under…

cs.CL2026

Nemotron 3 Ultra: Open, Efficient Mixture-of-Experts Hybrid Mamba-Transformer Model for Agentic Reasoning

NVIDIA, :, Aaron Blakeman +572

We introduce Nemotron 3 Ultra, a 550 billion total and 55 billion active parameter Mixture-of-Experts Hybrid Mamba-Attention language model. We pre-trained Nemotron 3 Ultra on 20 t…

cs.LG2026

Nemotron 3 Nano Omni: Efficient and Open Multimodal Intelligence

NVIDIA, :, Amala Sanjay Deshmukh +204

We introduce Nemotron 3 Nano Omni, the latest model in the Nemotron multimodal series and the first to natively support audio inputs alongside text, images, and video. Nemotron 3 N…

cs.LG2026

Star Elastic: Many-in-One Reasoning LLMs with Efficient Budget Control

Ali Taghibakhshi, Ruisi Cai, Saurav Muralidharan +17

Training a family of large language models (LLMs), either from scratch or via iterative compression, is prohibitively expensive and inefficient, requiring separate training runs fo…

cs.CL2025

Nemotron Elastic: Towards Efficient Many-in-One Reasoning LLMs

Ali Taghibakhshi, Sharath Turuvekere Sreenivas, Saurav Muralidharan +13

Training a family of large language models targeting multiple scales and deployment objectives is prohibitively expensive, requiring separate training runs for each different size.…

cs.CL2025

NVIDIA Nemotron Nano 2: An Accurate and Efficient Hybrid Mamba-Transformer Reasoning Model

NVIDIA, :, Aarti Basant +214

We introduce Nemotron-Nano-9B-v2, a hybrid Mamba-Transformer language model designed to increase throughput for reasoning workloads while achieving state-of-the-art accuracy compar…

cs.SD2025

Voice Conversion for Lombard Speaking Style with Implicit and Explicit Acoustic Feature Conditioning

Dominika Woszczyk, Manuel Sam Ribeiro, Thomas Merritt +1

Text-to-Speech (TTS) systems in Lombard speaking style can improve the overall intelligibility of speech, useful for hearing loss and noisy conditions. However, training those mode…

cs.LG2025

Scaling Fine-Grained MoE Beyond 50B Parameters: Empirical Evaluation and Practical Insights

Jakub Krajewski, Marcin Chochowski, Daniel Korzekwa

Mixture of Experts (MoE) architectures have emerged as pivotal for scaling Large Language Models (LLMs) efficiently. Fine-grained MoE approaches - utilizing more numerous, smaller…

cs.CL2025

Minitron-SSM: Efficient Hybrid Language Model Compression through Group-Aware SSM Pruning

Ali Taghibakhshi, Sharath Turuvekere Sreenivas, Saurav Muralidharan +15

Hybrid LLM architectures that combine Attention and State Space Models (SSMs) achieve state-of-the-art accuracy and runtime performance. Recent work has demonstrated that applying…

cs.CL2025

Nemotron-H: A Family of Accurate and Efficient Hybrid Mamba-Transformer Models

NVIDIA, :, Aaron Blakeman +198

As inference-time scaling becomes critical for enhanced reasoning capabilities, it is increasingly becoming important to build models that are efficient to infer. We introduce Nemo…

cs.SD2023

AE-Flow: AutoEncoder Normalizing Flow

Jakub Mosiński, Piotr Biliński, Thomas Merritt +2

Recently normalizing flows have been gaining traction in text-to-speech (TTS) and voice conversion (VC) due to their state-of-the-art (SOTA) performance. Normalizing flows are unsu…

cs.SD2023★ 10 cited

Creating New Voices using Normalizing Flows

Piotr Bilinski, Thomas Merritt, Abdelhamid Ezzerg +5

Creating realistic and natural-sounding synthetic speech remains a big challenge for voice identities unseen during training. As there is growing interest in synthesizing voices of…

eess.AS2023

Comparing normalizing flows and diffusion models for prosody and acoustic modelling in text-to-speech

Guangyan Zhang, Thomas Merritt, Manuel Sam Ribeiro +10

Neural text-to-speech systems are often optimized on L1/L2 losses, which make strong assumptions about the distributions of the target data space. Aiming to improve those assumptio…

eess.AS2023★ 6 cited

On granularity of prosodic representations in expressive text-to-speech

Mikolaj Babianski, Kamil Pokora, Raahil Shah +3

In expressive speech synthesis it is widely adopted to use latent prosody representations to deal with variability of the data during training. Same text may correspond to various…

eess.AS2022

Remap, warp and attend: Non-parallel many-to-many accent conversion with Normalizing Flows

Abdelhamid Ezzerg, Thomas Merritt, Kayoko Yanagisawa +6

Regional accents of the same language affect not only how words are pronounced (i.e., phonetic content), but also impact prosodic aspects of speech such as speaking rate and intona…

eess.AS2022★ 1 cited

Automated detection of pronunciation errors in non-native English speech employing deep learning

Daniel Korzekwa

Despite significant advances in recent years, the existing Computer-Assisted Pronunciation Training (CAPT) methods detect pronunciation errors with a relatively low accuracy (preci…

eess.AS2022★ 39 cited

Computer-assisted Pronunciation Training -- Speech synthesis is almost all you need

Daniel Korzekwa, Jaime Lorenzo-Trueba, Thomas Drugman +1

The research community has long studied computer-assisted pronunciation training (CAPT) methods in non-native speech. Researchers focused on studying various model architectures, s…

eess.AS2022★ 2 cited

Text-free non-parallel many-to-many voice conversion using normalising flows

Thomas Merritt, Abdelhamid Ezzerg, Piotr Biliński +4

Non-parallel voice conversion (VC) is typically achieved using lossy representations of the source speech. However, ensuring only speaker identity information is dropped whilst all…

eess.AS2021

Enhancing audio quality for expressive Neural Text-to-Speech

Abdelhamid Ezzerg, Adam Gabrys, Bartosz Putrycz +7

Artificial speech synthesis has made a great leap in terms of naturalness as recent Text-to-Speech (TTS) systems are capable of producing speech with similar quality to human recor…

cs.SD2021★ 1 cited

Non-Autoregressive TTS with Explicit Duration Modelling for Low-Resource Highly Expressive Speech

Raahil Shah, Kamil Pokora, Abdelhamid Ezzerg +5

Whilst recent neural text-to-speech (TTS) approaches produce high-quality speech, they typically require a large amount of recordings from the target speaker. In previous work, a 3…

eess.AS2021

Improving the expressiveness of neural vocoding with non-affine Normalizing Flows

Adam Gabryś, Yunlong Jiao, Viacheslav Klimkov +2

This paper proposes a general enhancement to the Normalizing Flows (NF) used in neural vocoding. As a case study, we improve expressive speech vocoding with a revamped Parallel Wav…

eess.AS2021

Weakly-supervised word-level pronunciation error detection in non-native English speech

Daniel Korzekwa, Jaime Lorenzo-Trueba, Thomas Drugman +2

We propose a weakly-supervised model for word-level mispronunciation detection in non-native (L2) English speech. To train this model, phonetically transcribed L2 speech is not req…

eess.AS2021★ 2 cited

Universal Neural Vocoding with Parallel WaveNet

Yunlong Jiao, Adam Gabrys, Georgi Tinchev +3

We present a universal neural vocoder based on Parallel WaveNet, with an additional conditioning network called Audio Encoder. Our universal vocoder offers real-time high-quality s…

eess.AS2021★ 1 cited

Mispronunciation Detection in Non-native (L2) English with Uncertainty Modeling

Daniel Korzekwa, Jaime Lorenzo-Trueba, Szymon Zaporowski +3

A common approach to the automatic detection of mispronunciation in language learning is to recognize the phonemes produced by a student and compare it to the expected pronunciatio…