ETTA: Elucidating the Design Space of Text-to-Audio Models

• URL: http://arxiv.org/abs/2412.19351v1
• Date: Thu, 26 Dec 2024 21:13:12 GMT
• Title: ETTA: Elucidating the Design Space of Text-to-Audio Models
• Authors: Sang-gil Lee, Zhifeng Kong, Arushi Goel, Sungwon Kim, Rafael Valle, Bryan Catanzaro,
• Abstract summary: We study the effects of data, model architecture, training objective functions, and sampling strategies on target benchmarks.<n>We propose our best model dubbed Elucidated Text-To-Audio (ETTA)<n>ETTA provides improvements over the baselines trained on publicly available data, while being competitive with models trained on proprietary data.
• Score: 33.831803213869605
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent years have seen significant progress in Text-To-Audio (TTA) synthesis, enabling users to enrich their creative workflows with synthetic audio generated from natural language prompts. Despite this progress, the effects of data, model architecture, training objective functions, and sampling strategies on target benchmarks are not well understood. With the purpose of providing a holistic understanding of the design space of TTA models, we set up a large-scale empirical experiment focused on diffusion and flow matching models. Our contributions include: 1) AF-Synthetic, a large dataset of high quality synthetic captions obtained from an audio understanding model; 2) a systematic comparison of different architectural, training, and inference design choices for TTA models; 3) an analysis of sampling methods and their Pareto curves with respect to generation quality and inference speed. We leverage the knowledge obtained from this extensive analysis to propose our best model dubbed Elucidated Text-To-Audio (ETTA). When evaluated on AudioCaps and MusicCaps, ETTA provides improvements over the baselines trained on publicly available data, while being competitive with models trained on proprietary data. Finally, we show ETTA's improved ability to generate creative audio following complex and imaginative captions -- a task that is more challenging than current benchmarks.

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