mlsanityData to 14 Oct 2026

Real-time Speech Frequency Bandwidth Extension

arXiv 2010.10677 ↗First posted 21 Oct 2020eess.AS cs.SDcited by 22

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Abstract (arXiv)

In this paper we propose a lightweight model for frequency bandwidth extension of speech signals, increasing the sampling frequency from 8kHz to 16kHz while restoring the high frequency content to a level almost indistinguishable from the 16kHz ground truth. The model architecture is based on SEANet (Sound EnhAncement Network), a wave-to-wave fully convolutional model, which uses a combination of feature losses and adversarial losses to reconstruct an enhanced version of the input speech. In addition, we propose a variant of SEANet that can be deployed on-device in streaming mode, achieving an architectural latency of 16ms. When profiled on a single core of a mobile CPU, processing one 16ms frame takes only 1.5ms. The low latency makes it viable for bi-directional voice communication systems.

Key facts. Cited by 22 papers in the map (data through 14 Oct 2026). First posted on arXiv 21 Oct 2020.

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Citing papers per year: 2021: 1; 2022: 6; 2023: 4; 2024: 4; 2025: 5; 2026: 2.

22 papers.

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  1. 2021SoundStream: An End-to-End Neural Audio Codeccited by 771
  2. 2022High Fidelity Neural Audio Compressioncited by 687
  3. 2022AudioGen: Textually Guided Audio Generationcited by 295
  4. 2022Universal Speech Enhancement with Score-based Diffusioncited by 75
  5. 2022HiFi++: a Unified Framework for Bandwidth Extension and Speech Enhancementcited by 49
  6. 2023FunCodec: A Fundamental, Reproducible and Integrable Open-source Toolkit for Neural Speech Codeccited by 44
  7. 2023Blind Audio Bandwidth Extension: A Diffusion-Based Zero-Shot Approachcited by 21
  8. 2023AV-RIR: Audio-Visual Room Impulse Response Estimationcited by 20
  9. 2022AERO: Audio Super Resolution in the Spectral Domaincited by 17
  10. 2024StreamVC: Real-Time Low-Latency Voice Conversioncited by 15
  11. 2025Neural Codecs as Biosignal Tokenizerscited by 14
  12. 2024TRAMBA: A Hybrid Transformer and Mamba Architecture for Practical Audio and Bone Conduction Speech Super Resolution and Enhancement on Mobile and Wearable Platformscited by 11
10 more
  1. 2024Gull: A Generative Multifunctional Audio Codeccited by 5
  2. 2022Differentiable WORLD Synthesizer-based Neural Vocoder With Application To End-To-End Audio Style Transfercited by 3
  3. 2024SoundLoCD: An Efficient Conditional Discrete Contrastive Latent Diffusion Model for Text-to-Sound Generationcited by 3
  4. 2025UniverSR: Unified and Versatile Audio Super-Resolution via Vocoder-Free Flow Matchingcited by 3
  5. 2023Guided Speech Enhancement Networkcited by 1
  6. 2025A High-Fidelity Speech Super Resolution Network using a Complex Global Attention Module with Spectro-Temporal Losscited by 1
  7. 2026Do Neural Codecs Generalize? A Controlled Study Across Unseen Languages and Non-Speech Taskscited by 1
  8. 2025Neural Spectral Band Generation for Audio Codingcited by 0
  9. 2025SUBARU: A Practical Approach to Power Saving in Hearables Using SUB-Nyquist Audio Resolution Upsamplingcited by 0
  10. 2026Discriminating real and synthetic super-resolved audio samples using embedding-based classifierscited by 0