High-Quality, Low-Delay Music Coding in the Opus Codec
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Abstract (arXiv)
The IETF recently standardized the Opus codec as RFC6716. Opus targets a wide range of real-time Internet applications by combining a linear prediction coder with a transform coder. We describe the transform coder, with particular attention to the psychoacoustic knowledge built into the format. The result out-performs existing audio codecs that do not operate under real-time constraints.
Key facts. Cited by 12 papers in the map (data through 7 Oct 2026). First posted on arXiv 15 Feb 2016.
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Citing papers per year: 2021: 2; 2022: 2; 2023: 0; 2024: 3; 2025: 3; 2026: 2.
12 papers.
- 2024Scaling Transformers for Low-Bitrate High-Quality Speech Codingcited by 48
- 2025FlowDec: A flow-based full-band general audio codec with high perceptual qualitycited by 15
- 2021Scalable and Efficient Neural Speech Coding: A Hybrid Designcited by 5
- 2024PSCodec: A Series of High-Fidelity Low-bitrate Neural Speech Codecs Leveraging Prompt Encoderscited by 3
- 2024Audio Codec Augmentation for Robust Collaborative Watermarking of Speech Synthesiscited by 3
- 2025BanglaTalk: Towards Real-Time Speech Assistance for Bengali Regional Dialectscited by 3
- 2021RNNoise-Ex: Hybrid Speech Enhancement System based on RNN and Spectral Featurescited by 1
- 2022Bunched LPCNet2: Efficient Neural Vocoders Covering Devices from Cloud to Edgecited by 0
- 2022Fingerprinting Robot Movements via Acoustic Side Channelcited by 0
- 2025Neural Spectral Band Generation for Audio Codingcited by 0
- 2026How to Label Resynthesized Audio: The Dual Role of Neural Audio Codecs in Audio Deepfake Detectioncited by 0
- 2026Codec-Robust Attacks on Audio LLMscited by 0
- 2026Codec-Robust Attacks on Audio LLMs19 May 2026
- 2026How to Label Resynthesized Audio: The Dual Role of Neural Audio Codecs in Audio Deepfake Detection18 Feb 2026
- 2025BanglaTalk: Towards Real-Time Speech Assistance for Bengali Regional Dialects7 Oct 2025
- 2025Neural Spectral Band Generation for Audio Coding7 Jun 2025
- 2025FlowDec: A flow-based full-band general audio codec with high perceptual quality3 Mar 2025
- 2024Scaling Transformers for Low-Bitrate High-Quality Speech Coding29 Nov 2024
- 2024Audio Codec Augmentation for Robust Collaborative Watermarking of Speech Synthesis20 Sep 2024
- 2024PSCodec: A Series of High-Fidelity Low-bitrate Neural Speech Codecs Leveraging Prompt Encoders3 Apr 2024
- 2022Fingerprinting Robot Movements via Acoustic Side Channel21 Sep 2022
- 2022Bunched LPCNet2: Efficient Neural Vocoders Covering Devices from Cloud to Edge27 Mar 2022
- 2021RNNoise-Ex: Hybrid Speech Enhancement System based on RNN and Spectral Features25 May 2021
- 2021Scalable and Efficient Neural Speech Coding: A Hybrid Design27 Mar 2021