{'fraction_non_alphanumeric': 0.02849002849002849, 'fraction_numerical': 0.0, 'mean_word_length': 5.934210526315789, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The Emotional Characteristics of Rain Sound Effects

Rain sound effects are commonly used in games, animations, and films, but the relationship between their features and emotional characteristics is not obvious. This paper investigates the effects of several features on the emotional characteristics of rain sound effects via a listening test. Listeners rated the sounds over Arousal, Valence, six features, and sixteen emotional categories. The results showed that Arousal significantly increased with increases in the properties Density, Impact, Intensity, Loudness, and Quantity, while Valence decreased. It was also found that most of the emotional categories were significantly influenced by these properties. The emotional categories Agitated, Angry, Scary, Violent, Anxious, and Nervous significantly increased with these properties, while the categories Comforting, Calm, Gentle, Relaxed, and Tender decreased. However, Mysterious was not significantly affected. These results give some suggestions for editing and choosing rain sound effects.