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Kuaishou Audio & Video Technology
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Kuaishou Audio & Video Technology

Explore the stories behind Kuaishou's audio and video technology.

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Recent Articles

Latest from Kuaishou Audio & Video Technology

24 recent articles
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Sep 4, 2025 · Fundamentals

How LingXi Revolutionizes User‑Level QoE with Scalable Adaptive Video Streaming

A joint Kuaishou‑Tsinghua study presented at ACM SIGCOMM 2025 introduces LingXi, the first large‑scale production system that personalizes adaptive video streaming by targeting stall events, using online Bayesian optimization, Monte Carlo simulation, and a hybrid exit‑rate predictor to achieve significant QoE and QoS gains across millions of users.

Monte Carlo SimulationQoE optimizationSIGCOMM 2025
0 likes · 14 min read
How LingXi Revolutionizes User‑Level QoE with Scalable Adaptive Video Streaming
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Jun 11, 2025 · Artificial Intelligence

Kuaishou Showcases 12 Cutting-Edge CVPR 2025 Papers on Video Generation and AI

Kuaishou presented twelve peer‑reviewed papers at CVPR 2025 covering video quality assessment, large‑scale video datasets, dynamic 3D avatar reconstruction, 4D scene simulation, controllable video generation, scaling laws for diffusion transformers, multimodal foundations, and more, highlighting the company's leading research in computer vision and AI.

AI researchCVPR2025deep learning
0 likes · 21 min read
Kuaishou Showcases 12 Cutting-Edge CVPR 2025 Papers on Video Generation and AI
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Jan 21, 2025 · Fundamentals

How Kuaishou Enables Full‑Chain Dolby Vision Support for UGC

Kuaishou partners with Dolby Labs to bring full‑chain Dolby Vision to its short‑video platform, detailing the technology behind HDR, dynamic metadata, and a brightness‑adjustment solution that ensures seamless playback and optimal visual experience for user‑generated content across devices.

Dolby VisionDynamic MetadataExtended Brightness
0 likes · 10 min read
How Kuaishou Enables Full‑Chain Dolby Vision Support for UGC
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Jun 20, 2023 · Artificial Intelligence

How a Low‑Latency Hierarchical Fusion Network Beats Echoes in Real‑Time Calls

At ICASSP 2023, Kuaishou’s audio team presented a low‑latency hierarchical fusion network for full‑band acoustic echo cancellation, detailing its multi‑stage design, asymmetric windowing, loss functions, training strategy, and achieving second place in the non‑personalized AEC Challenge, with real‑world deployment results.

Acoustic Echo CancellationHierarchical Fusion Networkaudio
0 likes · 13 min read
How a Low‑Latency Hierarchical Fusion Network Beats Echoes in Real‑Time Calls
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
May 25, 2023 · Fundamentals

What Makes Kuaishou’s CMTP the Future of Media Transmission?

The article reviews the rapid growth of audio‑video applications, categorizes media transmission scenarios into generic VoD, RTC and Live, examines Kuaishou’s optimization practices with protocols such as KTP, LAS, KLP and AAS, and introduces the next‑generation CMTP protocol designed to unify and extend these solutions across all use cases.

CMTPKTPProtocol Design
0 likes · 12 min read
What Makes Kuaishou’s CMTP the Future of Media Transmission?
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Mar 30, 2023 · Artificial Intelligence

How Kuaishou Elevates Short‑Video Quality and AI Performance at NVIDIA GTC 2023

At NVIDIA GTC 2023, Kuaishou engineers presented cutting‑edge solutions ranging from video quality assessment and enhancement to digital‑human live streaming, custom performance‑optimization frameworks, large‑scale recommendation model acceleration, and multimodal massive‑model deployment for short‑video applications.

AI Optimizationdigital humanlarge recommendation models
0 likes · 9 min read
How Kuaishou Elevates Short‑Video Quality and AI Performance at NVIDIA GTC 2023
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Dec 30, 2022 · Artificial Intelligence

Unlocking Realistic Bokeh: Depth‑Aware Algorithms Behind Holiday Video Effects

This article explains the optical principles of bokeh (scatter blur), describes a depth‑aware variable‑focus algorithm developed by Kuaishou’s audio‑video team, and details practical optimizations such as saliency detection, edge‑preserving weighting, and adaptive spot‑light effects that enable realistic, customizable holiday video filters.

BokehDepth estimationImage Processing
0 likes · 11 min read
Unlocking Realistic Bokeh: Depth‑Aware Algorithms Behind Holiday Video Effects
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Sep 29, 2022 · Artificial Intelligence

How DeViT Revolutionizes Video Inpainting with Deformed Vision Transformers

The article introduces DeViT, a novel Deformed Vision Transformer framework for video inpainting that leverages a deformable patch homography estimator, mask‑pruned attention, and spatio‑temporal weight adaptation, achieving state‑of‑the‑art results on benchmark datasets and highlighting its potential for advanced video editing tools.

DeViTMultimediaTransformer
0 likes · 10 min read
How DeViT Revolutionizes Video Inpainting with Deformed Vision Transformers
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Aug 24, 2022 · Artificial Intelligence

Cutting Video Bitrate to 14.4 kbps: Inside Kuaishou’s AI‑Generated Compression

Kuaishou’s audio‑video team presents an AI‑driven compression algorithm and the KISC speech codec that achieve ultra‑low‑bitrate real‑time video and high‑quality voice transmission, enabling smooth RTC experiences even on weak networks while supporting creative features like view‑point adjustment and background replacement.

AI compressionReal-time communicationlow bitrate video
0 likes · 11 min read
Cutting Video Bitrate to 14.4 kbps: Inside Kuaishou’s AI‑Generated Compression