Human Detection of Political Speech Deepfakes across Transcripts, Audio, and Video

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Hauptverfasser: Groh, Matthew, Sankaranarayanan, Aruna, Singh, Nikhil, Kim, Dong Young, Lippman, Andrew, Picard, Rosalind
Format: Preprint
Veröffentlicht: 2022
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author Groh, Matthew
Sankaranarayanan, Aruna
Singh, Nikhil
Kim, Dong Young
Lippman, Andrew
Picard, Rosalind
author_facet Groh, Matthew
Sankaranarayanan, Aruna
Singh, Nikhil
Kim, Dong Young
Lippman, Andrew
Picard, Rosalind
contents Recent advances in technology for hyper-realistic visual and audio effects provoke the concern that deepfake videos of political speeches will soon be indistinguishable from authentic video recordings. The conventional wisdom in communication theory predicts people will fall for fake news more often when the same version of a story is presented as a video versus text. We conduct 5 pre-registered randomized experiments with 2,215 participants to evaluate how accurately humans distinguish real political speeches from fabrications across base rates of misinformation, audio sources, question framings, and media modalities. We find base rates of misinformation minimally influence discernment and deepfakes with audio produced by the state-of-the-art text-to-speech algorithms are harder to discern than the same deepfakes with voice actor audio. Moreover across all experiments, we find audio and visual information enables more accurate discernment than text alone: human discernment relies more on how something is said, the audio-visual cues, than what is said, the speech content.
format Preprint
id arxiv_https___arxiv_org_abs_2202_12883
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Human Detection of Political Speech Deepfakes across Transcripts, Audio, and Video
Groh, Matthew
Sankaranarayanan, Aruna
Singh, Nikhil
Kim, Dong Young
Lippman, Andrew
Picard, Rosalind
Human-Computer Interaction
Artificial Intelligence
Recent advances in technology for hyper-realistic visual and audio effects provoke the concern that deepfake videos of political speeches will soon be indistinguishable from authentic video recordings. The conventional wisdom in communication theory predicts people will fall for fake news more often when the same version of a story is presented as a video versus text. We conduct 5 pre-registered randomized experiments with 2,215 participants to evaluate how accurately humans distinguish real political speeches from fabrications across base rates of misinformation, audio sources, question framings, and media modalities. We find base rates of misinformation minimally influence discernment and deepfakes with audio produced by the state-of-the-art text-to-speech algorithms are harder to discern than the same deepfakes with voice actor audio. Moreover across all experiments, we find audio and visual information enables more accurate discernment than text alone: human discernment relies more on how something is said, the audio-visual cues, than what is said, the speech content.
title Human Detection of Political Speech Deepfakes across Transcripts, Audio, and Video
topic Human-Computer Interaction
Artificial Intelligence
url https://arxiv.org/abs/2202.12883