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We investigated gesture description of sound stimuli performed during a listening task. Our hypothesis is that the strategies in gestural responses depend on the level of identification of the sound source and specifically on the identification of the action causing the sound. To validate our hypothesis, we conducted two experiments. In the first experiment, we built two corpora of sounds. The first corpus contains sounds with identifiable causal actions. The second contains sounds for which no causal actions could be identified. These corpora properties were validated through a listening test. In the second experiment, participants performed arm and hand gestures synchronously while listening to sounds taken from these corpora. Afterward, we conducted interviews asking participants to verbalize their experience while watching their own video recordings. They were questioned on their perception of the listened …