LiveFoley: Dynamic Real-Time Video-to-Audio Generation for Immersive Interactive Worlds
LiveFoley is a streaming causal autoregressive diffusion system for generating audio from live video, targeting interactive applications.
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- Primary sourceHugging Face
- Discovery linkHugging Face
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LiveFoley is a streaming causal autoregressive diffusion system for generating audio from live video, targeting interactive applications. It addresses two bottlenecks in streaming video-to-audio: visual frontends with reduced receptive fields that degrade alignment, and causal audio backends that denoise patches in isolation. The paper introduces a Trailing Sliding Window to convert non-causal segment-level encoders into streaming modules without retraining, and History and Future-Warmup LocDiT variants to widen the audio denoising window. The authors report matching offline models in temporal alignment and leading streaming systems in generation quality.
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Source claims not independently checked; the reported latency of 156ms and alignment parity with offline models come from the authors' own experiments.
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Source claims not independently checked; the reported latency of 156ms and alignment parity with offline models come from the authors' own experiments.
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A Trailing Sliding Window converts non-causal segment-level visual encoders into streaming modules without retraining.
Source: Hugging Face ↗Stored source-based brief · key point 1 · AINewsIQ paraphraseHistory LocDiT adds past context to improve audio quality at no added latency and is the default configuration.
Source: Hugging Face ↗Stored source-based brief · key point 2 · AINewsIQ paraphraseFuture-Warmup LocDiT uses an approximate future condition to improve quality at the cost of acceptable backend look-ahead.
Source: Hugging Face ↗Stored source-based brief · key point 3 · AINewsIQ paraphraseThe authors report that LiveFoley matches offline models in temporal alignment and leads streaming systems in generation quality.
Source: Hugging Face ↗Stored source-based brief · key point 4 · AINewsIQ paraphraseLimits from the stored brief
Source claims not independently checked; the reported latency of 156ms and alignment parity with offline models come from the authors' own experiments.
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Why this may matter
Real-time audio generation from live video could support game engines, AR/VR, and live cameras. Decoupling the sound engine from specific video generators would allow it to work with any pixel stream, which is relevant to immersive interactive applications.
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Source claims not independently checked; the reported latency of 156ms and alignment parity with offline models come from the authors' own experiments.
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