Affective auditory stimulus database: An expanded version of the International Affective Digitized Sounds (IADS-E).

Area of Science:

• Psychology
• Auditory Perception
• Affective Science

Background:

• Standardized affective stimulus databases are crucial for emotion research.
• Existing auditory databases (e.g., IADS) have limitations, including limited sample size and artificial stimuli.
• Auditory emotion research is less developed than visual emotion research due to these limitations.

Purpose of the Study:

• To expand the existing auditory affective stimulus database.
• To include a larger corpus of natural sounds.
• To cover a wider range of semantic categories for emotional stimuli.

Main Methods:

• Collected 935 natural sounds, incorporating sounds from IADS-2.
• Recruited 207 participants for sound evaluation.
• Utilized the Self-Assessment Manikin (SAM) and basic-emotion rating scales for data collection.

Main Results:

• Emotions in sounds were distinguishable using affective rating scales.
• Evaluations of the sounds demonstrated stability.
• A larger corpus of natural, emotionally evocative auditory stimuli was successfully created.

Conclusions:

• The expanded database provides a valuable resource for auditory and affective science research.
• The standardized stimuli facilitate reliable comparisons across studies.
• This resource may advance research on auditory systems and cross-modal sensory interactions.