Papers › Fast Text-to-Audio Generation with Adversarial Post-Training

Fast Text-to-Audio Generation with Adversarial Post-Training

13 May 2025arXiv:2505.08175archive 2025-07-28

Zachary Novack, Zach Evans, Zack Zukowski, Josiah Taylor, CJ Carr, Julian Parker, Adnan Al-Sinan, Gian Marco Iodice, Julian McAuley, Taylor Berg-Kirkpatrick, Jordi Pons

Text-to-audio systems, while increasingly performant, are slow at inference time, thus making their latency unpractical for many creative applications. We present Adversarial Relativistic-Contrastive (ARC) post-training, the first adversarial acceleration algorithm for diffusion/flow models not based on distillation. While past adversarial post-training methods have struggled to compare against their expensive distillation counterparts, ARC post-training is a simple procedure that (1) extends a recent relativistic adversarial formulation to diffusion/flow post-training and (2) combines it with a novel contrastive discriminator objective to encourage better prompt adherence. We pair ARC post-training with a number optimizations to Stable Audio Open and build a model capable of generating ≈12s of 44.1kHz stereo audio in ≈75ms on an H100, and ≈7s on a mobile edge-device, the fastest text-to-audio model to our knowledge.

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ARCAudio Generation

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