activity
20202025
most citedTTS-Portuguese Corpus: a corpus for speech synthesis in Brazilian Portuguese

16 citations · 37 across the 12 of their papers we have counts for

collaborators

12 papers

cs.SD2025

Fine-tuning Pre-trained Audio Models for COVID-19 Detection: A Technical Report

Daniel Oliveira de Brito, Letícia Gabriella de Souza, Marcelo Matheus Gauy +2

This technical report investigates the performance of pre-trained audio models on COVID-19 detection tasks using established benchmark datasets. We fine-tuned Audio-MAE and three P…

cs.CL2025

The Impact of Prosodic Segmentation on Speech Synthesis of Spontaneous Speech

Julio Cesar Galdino, Sidney Evaldo Leal, Leticia Gabriella De Souza +6

Spontaneous speech presents several challenges for speech synthesis, particularly in capturing the natural flow of conversation, including turn-taking, pauses, and disfluencies. Al…

cs.SD2024

Contrasting Deep Learning Models for Direct Respiratory Insufficiency Detection Versus Blood Oxygen Saturation Estimation

Marcelo Matheus Gauy, Natalia Hitomi Koza, Ricardo Mikio Morita +7

We contrast high effectiveness of state of the art deep learning architectures designed for general audio classification tasks, refined for respiratory insufficiency (RI) detection…

cs.CL2024★ 7 cited

Introducing Bode: A Fine-Tuned Large Language Model for Portuguese Prompt-Based Task

Gabriel Lino Garcia, Pedro Henrique Paiola, Luis Henrique Morelli +7

Large Language Models (LLMs) are increasingly bringing advances to Natural Language Processing. However, low-resource languages, those lacking extensive prominence in datasets for…

eess.AS2023

CML-TTS A Multilingual Dataset for Speech Synthesis in Low-Resource Languages

Frederico S. Oliveira, Edresson Casanova, Arnaldo Cândido Júnior +2

In this paper, we present CML-TTS, a recursive acronym for CML-Multi-Lingual-TTS, a new Text-to-Speech (TTS) dataset developed at the Center of Excellence in Artificial Intelligenc…

cs.SD2023★ 1 cited

Evaluation of Speech Representations for MOS prediction

Frederico S. Oliveira, Edresson Casanova, Arnaldo Cândido Júnior +3

In this paper, we evaluate feature extraction models for predicting speech quality. We also propose a model architecture to compare embeddings of supervised learning and self-super…

cs.CL2023★ 2 cited

Evaluating OpenAI's Whisper ASR for Punctuation Prediction and Topic Modeling of life histories of the Museum of the Person

Lucas Rafael Stefanel Gris, Ricardo Marcacini, Arnaldo Candido Junior +3

Automatic speech recognition (ASR) systems play a key role in applications involving human-machine interactions. Despite their importance, ASR models for the Portuguese language pr…

cs.CL2022

Bringing NURC/SP to Digital Life: the Role of Open-source Automatic Speech Recognition Models

Lucas Rafael Stefanel Gris, Arnaldo Candido Junior, Vinícius G. dos Santos +4

The NURC Project that started in 1969 to study the cultured linguistic urban norm spoken in five Brazilian capitals, was responsible for compiling a large corpus for each capital.…

cs.CL2021★ 10 cited

CORAA: a large corpus of spontaneous and prepared speech manually validated for speech recognition in Brazilian Portuguese

Arnaldo Candido Junior, Edresson Casanova, Anderson Soares +8

Automatic Speech recognition (ASR) is a complex and challenging task. In recent years, there have been significant advances in the area. In particular, for the Brazilian Portuguese…

cs.CL2021★ 1 cited

Brazilian Portuguese Speech Recognition Using Wav2vec 2.0

Lucas Rafael Stefanel Gris, Edresson Casanova, Frederico Santos de Oliveira +2

Deep learning techniques have been shown to be efficient in various tasks, especially in the development of speech recognition systems, that is, systems that aim to transcribe an a…

eess.AS2020★ 16 cited

TTS-Portuguese Corpus: a corpus for speech synthesis in Brazilian Portuguese

Edresson Casanova, Arnaldo Candido Junior, Christopher Shulby +4

Speech provides a natural way for human-computer interaction. In particular, speech synthesis systems are popular in different applications, such as personal assistants, GPS applic…

cs.CL2020

Speech2Phone: A Novel and Efficient Method for Training Speaker Recognition Models

Edresson Casanova, Arnaldo Candido Junior, Christopher Shulby +5

In this paper we present an efficient method for training models for speaker recognition using small or under-resourced datasets. This method requires less data than other SOTA (St…