2021

CL4AC: A Contrastive Loss for Audio Captioning

Liu, Xubo, Huang, Qiushi, Mei, Xinhao et al.

Understand

Automated Audio captioning (AAC) is a cross-modal translation task that aims to use natural language to describe the content of an audio clip.

  • As shown in the submissions received for Task 6 of the DCASE 2021 Challenges, this problem has received increasing interest in the community.
  • The existing AAC systems are usually based on an encoder-decoder architecture, where the audio signal is encoded into a latent representation, and aligned with its corresponding text descriptions, then a decoder is used to generate the captions.
  • However, training of an AAC system often encounters the problem of data scarcity, which may lead to inaccurate representation and audio-text alignment.

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