A Transformer-based Audio Captioning Model with Keyword Estimation

Yuma Koizumi; Ryo Masumura; Kyosuke Nishida; Masahiro Yasuda; Shoichiro Saito

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arXiv · 2007.00222

A Transformer-based Audio Captioning Model with Keyword Estimation

Yuma Koizumi·Ryo Masumura·Kyosuke Nishida·Masahiro Yasuda·Shoichiro Saito

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Abstract

One of the problems with automated audio captioning (AAC) is the indeterminacy in word selection corresponding to the audio event/scene. Since one acoustic event/scene can be described with several words, it results in a combinatorial explosion of possible captions and difficulty in training. To solve this problem, we propose a Transformer-based audio-captioning model with keyword estimation called TRACKE. It simultaneously solves the word-selection indeterminacy problem with the main task of AAC while executing the sub-task of acoustic event detection/acoustic scene classification (i.e., keyword estimation). TRACKE estimates keywords, which comprise a word set corresponding to audio events/scenes in the input audio, and generates the caption while referring to the estimated keywords to reduce word-selection indeterminacy. Experimental results on a public AAC dataset indicate that TRACKE achieved state-of-the-art performance and successfully estimated both the caption and its keywords.

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BibTeX RIS

Yuma Koizumi, Ryo Masumura, Kyosuke Nishida, Masahiro Yasuda, Shoichiro Saito. 2020-07-01. A Transformer-based Audio Captioning Model with Keyword Estimation. https://arxiv.org/abs/2007.00222

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