InstructAV2AV: Instruction-Guided Audio-Video Joint Editing
Pith reviewed 2026-05-20 11:30 UTC · model grok-4.3
The pith
InstructAV2AV is the first end-to-end framework that jointly edits audio and video from text instructions while preserving source content.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
InstructAV2AV is the first end-to-end framework for instruction-guided audio-video joint editing. It rests on a new large-scale dataset InsAVE-80K created via scalable synthesis, then adapts an audio-video generation backbone through input concatenation with noisy latents, source-instruction gated attention for balanced following and preservation, and two-stage training to leverage pre-trained priors.
What carries the argument
Source-instruction gated attention that modulates the model's focus between the instruction and the source audio-video content to improve following while reducing unwanted changes.
If this is right
- Joint audio-video editing becomes feasible in one pass without separate pipelines for sound and visuals.
- Pre-trained audio-video generators can be repurposed for editing tasks with modest additional training.
- Controllable multimedia creation expands to cases where audio must change consistently with visual edits.
Where Pith is reading between the lines
- The gated attention design could generalize to other conditional generation tasks that need to balance new instructions against source fidelity.
- Scaling the synthetic data pipeline further might reduce the need for real paired editing data in future multimodal models.
- Real-time or interactive versions of the approach would require testing latency under the current two-stage training setup.
Load-bearing premise
The synthetic source-to-target pairs created by the data pipeline are sufficiently close to real editing scenarios to let the model learn effective instruction following and content preservation.
What would settle it
Human evaluation or objective scores on a held-out set of real user-recorded videos with natural language instructions, checking whether audio remains synchronized and source identity is retained after editing.
Figures
read the original abstract
Recent diffusion-based methods have achieved impressive progress in video content manipulation. However, they typically ignore the accompanying audio, leaving the audio disjointed from the edited results. In this paper, we propose InstructAV2AV, the first end-to-end framework for instruction-guided audio-video joint editing. We first develop a scalable data synthesis pipeline and construct InsAVE-80K, the first large-scale audio-video editing dataset with high-quality source-to-target pairs. With this data foundation, we adapt an audio-video generation backbone to leverage its robust priors. We concatenate the audio-video input with noisy latent codes to anchor the source context, propose the source-instruction gated attention to improve instruction following and content preservation, and introduce a two-stage training strategy to effectively transfer these pre-trained priors. Extensive experiments demonstrate that InstructAV2AV outperforms state-of-the-art methods across 11 metrics spanning three aspects on two evaluation sets, highlighting its potential for controllable content creation. Project page: https://hjzheng.net/projects/InstructAV2AV/.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper introduces InstructAV2AV as the first end-to-end framework for instruction-guided audio-video joint editing. It develops a scalable data synthesis pipeline to construct the InsAVE-80K dataset of high-quality source-to-target audio-video pairs, adapts a pre-trained audio-video generation backbone by concatenating inputs with noisy latent codes, proposes source-instruction gated attention for better instruction following and content preservation, and employs a two-stage training strategy to transfer priors. Extensive experiments claim outperformance over state-of-the-art methods across 11 metrics spanning three aspects on two evaluation sets.
Significance. If the central claims hold, this work would be significant for advancing controllable multimedia editing by jointly handling audio and video under natural language instructions, addressing a clear gap left by prior diffusion-based video methods that ignore audio. The construction of a large-scale paired dataset and the architectural adaptations (gated attention and two-stage training) represent concrete contributions that could enable more realistic content creation pipelines, provided the synthetic data foundation is robust.
major comments (2)
- [Methods (Data Synthesis Pipeline)] Data Synthesis Pipeline (Methods section): The description of the scalable synthesis pipeline for InsAVE-80K provides no quantitative validation—such as human ratings on instruction adherence, artifact detection rates, or statistical comparisons of source-target distributions—for the quality of the generated pairs. This is load-bearing for the central claim, as the reported gains on the 11 metrics and the effectiveness of the two-stage training and gated attention depend on the assumption that these pairs enable clean transfer of pre-trained priors without systematic mismatches (e.g., desync or content leakage) that could cause overfitting to dataset artifacts.
- [Experiments] Experiments section: The abstract and results claim outperformance across 11 metrics on two evaluation sets, but the provided text does not include the actual quantitative tables, baseline details, error bars, or ablation studies isolating the contribution of the gated attention and two-stage training. Without these, it is not possible to assess whether the gains are attributable to the proposed components or to unverified properties of the synthetic data.
minor comments (2)
- [Abstract] The abstract states 'outperforms state-of-the-art methods across 11 metrics' without referencing specific tables or figures; adding a forward reference to the results tables would improve clarity.
- [Methods] Notation for the source-instruction gated attention mechanism could be clarified with an explicit equation or diagram reference in the Methods section to distinguish it from standard cross-attention.
Simulated Author's Rebuttal
We thank the referee for the constructive feedback on our work. We address each major comment point by point below and outline the revisions we will make to strengthen the manuscript.
read point-by-point responses
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Referee: [Methods (Data Synthesis Pipeline)] Data Synthesis Pipeline (Methods section): The description of the scalable synthesis pipeline for InsAVE-80K provides no quantitative validation—such as human ratings on instruction adherence, artifact detection rates, or statistical comparisons of source-target distributions—for the quality of the generated pairs. This is load-bearing for the central claim, as the reported gains on the 11 metrics and the effectiveness of the two-stage training and gated attention depend on the assumption that these pairs enable clean transfer of pre-trained priors without systematic mismatches (e.g., desync or content leakage) that could cause overfitting to dataset artifacts.
Authors: We acknowledge that the current manuscript does not include explicit quantitative validation (such as human ratings or statistical distribution comparisons) for the InsAVE-80K pairs in the main text. While the pipeline leverages established models for pair generation, we agree this validation is important to support the data quality assumption. In the revised version, we will add a dedicated subsection with human evaluation results on instruction adherence and artifact rates, plus statistical comparisons between source and target distributions to rule out systematic issues like desync or leakage. revision: yes
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Referee: [Experiments] Experiments section: The abstract and results claim outperformance across 11 metrics on two evaluation sets, but the provided text does not include the actual quantitative tables, baseline details, error bars, or ablation studies isolating the contribution of the gated attention and two-stage training. Without these, it is not possible to assess whether the gains are attributable to the proposed components or to unverified properties of the synthetic data.
Authors: We apologize if the placement of results was unclear in the submitted version. The manuscript includes tables reporting the 11 metrics on both evaluation sets with baseline comparisons, and Section 4.3 contains ablations for gated attention and two-stage training. To address the concern, we will revise the Experiments section to explicitly reference and describe these tables in the main text, add error bars to the metrics, and expand the ablation discussion to better isolate component contributions versus data properties. revision: yes
Circularity Check
No significant circularity; contributions rest on novel dataset synthesis and empirical adaptations
full rationale
The paper introduces a scalable data synthesis pipeline to build InsAVE-80K, adapts an audio-video generation backbone, concatenates inputs with noisy latents, proposes source-instruction gated attention, and uses two-stage training to transfer priors. These steps are presented as engineering choices enabling instruction-guided joint editing, with outperformance demonstrated via experiments on separate evaluation sets across 11 metrics. No load-bearing claim reduces by construction to fitted parameters, self-definitions, or unverified self-citations; the derivation chain remains self-contained against external benchmarks and does not equate predictions to inputs.
Axiom & Free-Parameter Ledger
free parameters (1)
- two-stage training hyperparameters
axioms (1)
- domain assumption Pre-trained audio-video generation models contain robust priors that transfer effectively to editing tasks when conditioned on source input and instructions.
Lean theorems connected to this paper
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IndisputableMonolith/Cost/FunctionalEquation.leanwashburn_uniqueness_aczel unclear?
unclearRelation between the paper passage and the cited Recognition theorem.
We propose the Source-Instruction Gated Attention (SIGA) module ... two-stage training strategy ... flow matching formulation
What do these tags mean?
- matches
- The paper's claim is directly supported by a theorem in the formal canon.
- supports
- The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
- extends
- The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
- uses
- The paper appears to rely on the theorem as machinery.
- contradicts
- The paper's claim conflicts with a theorem or certificate in the canon.
- unclear
- Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.
Reference graph
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