EDMSound: Spectrogram Based Diffusion Models for Efficient and
  High-Quality Audio Synthesis
Authors: name: Ge Zhu, name: Yutong Wen, name: Marc-André Carbonneau, name: Zhiyao Duan

Audio diffusion models can synthesize a wide variety of sounds. Existing
models often operate on the latent domain with cascaded phase recovery modules
to reconstruct waveform. This poses challenges when generating high-fidelity
audio. In this paper, we propose EDMSound, a diffusion-based generative model
in spectrogram domain under the framework of elucidated diffusion models (EDM).
Combining with efficient deterministic sampler, we achieved similar Fr\'echet
audio distance (FAD) score as top-ranked baseline with only 10 steps and
reached state-of-the-art performance with 50 steps on the DCASE2023 foley sound
generation benchmark. We also revealed a potential concern regarding diffusion
based audio generation models that they tend to generate samples with high
perceptual similarity to the data from training data. Project page:
https://agentcooper2002.github.io/EDMSound/