5:15 PM - 6:45 PM
[HTT17-P05] On Spatial Perception based on Natural Sounds
Keywords:Cicadoidea, sense of closure
1. Introduction
In recent years, the preservation of the natural environment is becoming more important, and expectations for natural parks are increasing more. Due to the impact of Covid-19, urban parks, where people can avoid the density, have played a major role as a third place. The sound of insects in parks is considered to have a significant influence on people's comfort. Miyake et al. found that people liked and disliked the sound of insects. This is an example of people's awareness of the sound of insects. Individuals’ preferences for insects tend to differ greatly. In this study, we focused on the psychological impact of the insect sounds, especially the sound of cicadas, in considering coexistence with nature. We thought it necessary to advance the analysis of natural environments that everyone feels comfortable in urban parks.
2. Purpose and Methods of the research
The purpose of this study is to find factors of natural environment that everyone feels comfortable to coexist with nature.
In our daily lives, we are influenced by many factors such as traffic, the sounds of living creatures, and the voices of people, in a nature park in summer, we expect to be particularly affected by the sounds of cicadas. In this study, we will investigate changes in psychological sound perception of cicada calls.
3. Questionnaire survey
The purpose of this study was to determine the psychological impact that subjects read from the scenery. The survey method used here was to ask the participants which sound was perceived as louder for six images of the same sound source with different displayed scenery, and to ask them to rate the superiority of the sound using a one-pair comparison method.
The results showed that the same sound source was perceived as louder when the sense of closure was stronger and quieter when the sense of closure was weaker, indicating that the sense of closure of the photograph had a psychological impact. This is thought to be due to the proportion of wall and ceiling surfaces.
In addition, we also investigated whether the proportion of walls and ceilings was directly related to the sense of closure by selecting photos again. The same results were obtained for the selected photos. We also found that the ratio of walls to ceilings is directly related to the sense of closure.
4. Experiments and Analysis
The experimental investigation will examine the marginal value of discomfort to investigate whether the questionnaire results in a change from the actual sound. The images used were different pictures with a constant increase in volume for 15 seconds. The survey method was to have the participants watch a video, have them stop the video at the moment they felt "noisy" while watching the video, and record the number of seconds and the sound pressure at that second. The videos used were different views with a constant increase in volume for 15 seconds. As a result, no relationship was found between the limit of discomfort and psychological volume. However, it is possible that the judgment was made based not only on the sense of closure from the images, but also on factors such as the clarity of the object, the sense of distance, and the discomfort between the actual distance and the perceived distance, and that these factors interfered with each other.
5. Conclusion
The results of the questionnaire revealed a strong relationship between the psychological sense of closure and the psychological volume that people perceive from the scenery. Based on the results, we conducted an experiment to see if these relationships changed with the actual sound, and found that people judged not only the sense of closure from the images, but also the clarity and distance of the objects, and the discrepancy between the actual distance and the cognitive distance.
In recent years, the preservation of the natural environment is becoming more important, and expectations for natural parks are increasing more. Due to the impact of Covid-19, urban parks, where people can avoid the density, have played a major role as a third place. The sound of insects in parks is considered to have a significant influence on people's comfort. Miyake et al. found that people liked and disliked the sound of insects. This is an example of people's awareness of the sound of insects. Individuals’ preferences for insects tend to differ greatly. In this study, we focused on the psychological impact of the insect sounds, especially the sound of cicadas, in considering coexistence with nature. We thought it necessary to advance the analysis of natural environments that everyone feels comfortable in urban parks.
2. Purpose and Methods of the research
The purpose of this study is to find factors of natural environment that everyone feels comfortable to coexist with nature.
In our daily lives, we are influenced by many factors such as traffic, the sounds of living creatures, and the voices of people, in a nature park in summer, we expect to be particularly affected by the sounds of cicadas. In this study, we will investigate changes in psychological sound perception of cicada calls.
3. Questionnaire survey
The purpose of this study was to determine the psychological impact that subjects read from the scenery. The survey method used here was to ask the participants which sound was perceived as louder for six images of the same sound source with different displayed scenery, and to ask them to rate the superiority of the sound using a one-pair comparison method.
The results showed that the same sound source was perceived as louder when the sense of closure was stronger and quieter when the sense of closure was weaker, indicating that the sense of closure of the photograph had a psychological impact. This is thought to be due to the proportion of wall and ceiling surfaces.
In addition, we also investigated whether the proportion of walls and ceilings was directly related to the sense of closure by selecting photos again. The same results were obtained for the selected photos. We also found that the ratio of walls to ceilings is directly related to the sense of closure.
4. Experiments and Analysis
The experimental investigation will examine the marginal value of discomfort to investigate whether the questionnaire results in a change from the actual sound. The images used were different pictures with a constant increase in volume for 15 seconds. The survey method was to have the participants watch a video, have them stop the video at the moment they felt "noisy" while watching the video, and record the number of seconds and the sound pressure at that second. The videos used were different views with a constant increase in volume for 15 seconds. As a result, no relationship was found between the limit of discomfort and psychological volume. However, it is possible that the judgment was made based not only on the sense of closure from the images, but also on factors such as the clarity of the object, the sense of distance, and the discomfort between the actual distance and the perceived distance, and that these factors interfered with each other.
5. Conclusion
The results of the questionnaire revealed a strong relationship between the psychological sense of closure and the psychological volume that people perceive from the scenery. Based on the results, we conducted an experiment to see if these relationships changed with the actual sound, and found that people judged not only the sense of closure from the images, but also the clarity and distance of the objects, and the discrepancy between the actual distance and the cognitive distance.