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Related papers: Neural Pitch-Shifting and Time-Stretching with Con…

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Recent developments in neural speech synthesis and vocoding have sparked a renewed interest in voice conversion (VC). Beyond timbre transfer, achieving controllability on para-linguistic parameters such as pitch and Speed is critical in…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-16 Meiying Chen , Zhiyao Duan

Neural speech synthesis models can synthesize high quality speech but typically require a high computational complexity to do so. In previous work, we introduced LPCNet, which uses linear prediction to significantly reduce the complexity of…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-24 Jean-Marc Valin , Umut Isik , Paris Smaragdis , Arvindh Krishnaswamy

Neural speech synthesis models have recently demonstrated the ability to synthesize high quality speech for text-to-speech and compression applications. These new models often require powerful GPUs to achieve real-time operation, so being…

Audio and Speech Processing · Electrical Eng. & Systems 2019-02-20 Jean-Marc Valin , Jan Skoglund

Singing voice conversion is to convert a singer's voice to another one's voice without changing singing content. Recent work shows that unsupervised singing voice conversion can be achieved with an autoencoder-based approach [1]. However,…

Sound · Computer Science 2020-02-19 Chengqi Deng , Chengzhu Yu , Heng Lu , Chao Weng , Dong Yu

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

Noise reduction is an important part of modern hearing aids and is included in most commercially available devices. Deep learning-based state-of-the-art algorithms, however, either do not consider real-time and frequency resolution…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-29 Hendrik Schröter , Tobias Rosenkranz , Alberto N. Escalante B. , Marc Aubreville , Andreas Maier

State-of-the-art sequence-to-sequence acoustic networks, that convert a phonetic sequence to a sequence of spectral features with no explicit prosody prediction, generate speech with close to natural quality, when cascaded with neural…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-26 Slava Shechtman , Carmel Rabinovitz , Alex Sorin , Zvi Kons , Ron Hoory

The recently developed pitch-controllable text-to-speech (TTS) model, i.e. FastPitch, was conditioned for the pitch contours. However, the quality of the synthesized speech degraded considerably for pitch values that deviated significantly…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-13 Hanbin Bae , Young-Sun Joo

The research presents a voice conversion model using coefficient mapping and neural network. Most previous works on parametric speech synthesis did not account for losses in spectral details causing over smoothing and invariably, an…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-12 Olaide Ayodeji Agbolade , Samson A. Oyetunji

LPCNet is an efficient vocoder that combines linear prediction and deep neural network modules to keep the computational complexity low. In this work, we present two techniques to further reduce it's complexity, aiming for a low-cost LPCNet…

Neural vocoders have recently demonstrated high quality speech synthesis, but typically require a high computational complexity. LPCNet was proposed as a way to reduce the complexity of neural synthesis by using linear prediction (LP) to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-31 Krishna Subramani , Jean-Marc Valin , Umut Isik , Paris Smaragdis , Arvindh Krishnaswamy

Pitch manipulation is the process of producers adjusting the pitch of an audio segment to a specific key and intonation, which is essential in music production. Neural-network-based pitch-manipulation systems have been popular in recent…

Sound · Computer Science 2025-08-18 Yicheng Gu , Chaoren Wang , Zhizheng Wu , Lauri Juvela

In this paper, we present a machine-learning approach to pitch correction for voice in a karaoke setting, where the vocals and accompaniment are on separate tracks and time-aligned. The network takes as input the time-frequency…

Sound · Computer Science 2018-05-08 Sanna Wager , Lijiang Guo , Aswin Sivaraman , Minje Kim

In this paper, we propose an improved LPCNet vocoder using a linear prediction (LP)-structured mixture density network (MDN). The recently proposed LPCNet vocoder has successfully achieved high-quality and lightweight speech synthesis…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-03 Min-Jae Hwang , Eunwoo Song , Ryuichi Yamamoto , Frank Soong , Hong-Goo Kang

Human talkers often address listeners with language-comprehension challenges, such as hard-of-hearing or non-native adults, by globally slowing down their speech. However, it remains unclear whether this strategy actually makes speech more…

Computation and Language · Computer Science 2026-04-01 Paige Tuttösí , Angelica Lim , H. Henny Yeung , Yue Wang , Jean-Julien Aucouturier

Speech enhancement algorithms based on deep learning have greatly surpassed their traditional counterparts and are now being considered for the task of removing acoustic echo from hands-free communication systems. This is a challenging…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-11 Jean-Marc Valin , Srikanth Tenneti , Karim Helwani , Umut Isik , Arvindh Krishnaswamy

In this paper, we propose a quasi-periodic neural network (QPNet) vocoder with a novel network architecture named pitch-dependent dilated convolution (PDCNN) to improve the pitch controllability of WaveNet (WN) vocoder. The effectiveness of…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-24 Yi-Chiao Wu , Tomoki Hayashi , Patrick Lumban Tobing , Kazuhiro Kobayashi , Tomoki Toda

We present a lightweight adaptable neural TTS system with high quality output. The system is composed of three separate neural network blocks: prosody prediction, acoustic feature prediction and Linear Prediction Coding Net as a neural…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-27 Zvi Kons , Slava Shechtman , Alex Sorin , Carmel Rabinovitz , Ron Hoory

The human auditory system has the ability to selectively focus on key speech elements in an audio stream while giving secondary attention to less relevant areas such as noise or distortion within the background, dynamically adjusting its…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-09 Nursadul Mamun , John H. L. Hansen

The increasingly stringent requirement on quality-of-experience in 5G/B5G communication systems has led to the emerging neural speech enhancement techniques, which however have been developed in isolation from the existing expert-rule based…

Sound · Computer Science 2022-06-23 Yang Liu , Na Tang , Xiaoli Chu , Yang Yang , Jun Wang
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