Floor Impact Sound Level Distribution in Upper and Lower Units of an Apartment Based on Flanking Transmission by the Impact of a Rubber Ball

2021 ◽  
Vol 31 (5) ◽  
pp. 574-581
Author(s):  
Songmi Lee ◽  
Jeonghun Kim ◽  
Suhong Kim ◽  
Hansol Song ◽  
Jongkwan Ryu
Keyword(s):  
Sound Level ◽  
Rubber Ball ◽  
The Impact

scholarly journals The Impact of Notification Modality and Ambient Sound on Users’ Mobile Interaction

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 395
Author(s):  
Chien-Hsiung Chen ◽  
Miao Huang
Keyword(s):  
Completion Time ◽  
Sampling Method ◽  
Sound Level ◽  
Task Completion ◽  
Maze Task ◽  
Task Completion Time ◽  
Mobile Interaction ◽  
Ambient Sound ◽  
Convenience Sampling ◽  
The Impact

This study investigated the impacts of different notification modalities used in low and high ambient sound environments for mobile phone interaction. Three different notification modalities—Shaking Visual, Shaking Visual + Vibration, and Vibration—were designed and experimentally tested by asking users to conduct a maze task. A total of 72 participants were invited to take part in the experiment through the convenience sampling method. The generated results indicated that (1) the notification modality affects participants’ task completion time, (2) the error rate pertinent to the number of notifications is positively related to the participants’ task completion time, and (3) the ambient sound level and notification modalities impact the overall experience of the participants. The main contributions of this study are twofold. First, it verifies that the multi-dimensional feature of a Shaking Visual + Vibration synesthesia notification design is implementable. Second, this study demonstrated that the synesthesia notification could be feasible for mobile notification, and it was more perceptible by the users.

scholarly journals Impact of sound levels and patient-related factors on sleep of patients in the intensive care unit: a cross-sectional cohort study

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Piotr F. Czempik ◽  
Agnieszka Jarosińska ◽  
Krystyna Machlowska ◽  
Michał P. Pluta
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Sleep Quality ◽  
Sleep Duration ◽  
Smartphone Application ◽  
Sound Level ◽  
Related Factors ◽  
Cross Sectional ◽  
Sound Levels ◽  
The Impact

Abstract Sleep disruption is common in patients in the intensive care unit (ICU). The aim of the study was to measure sound levels during sleep-protected time in the ICU, determine sources of sound, assess the impact of sound levels and patient-related factors on duration and quality of patients' sleep. The study was performed between 2018 and 2019. A commercially available smartphone application was used to measure ambient sound levels. Sleep duration was measured using the Patient's Sleep Behaviour Observational Tool. Sleep quality was assessed using the Richards-Campbell Sleep Questionnaire (RCSQ). The study population comprised 18 (58%) men and 13 (42%) women. There were numerous sources of sound. The median duration of sleep was 5 (IQR 3.5–5.7) hours. The median score on the RCSQ was 49 (IQR 28–71) out of 100 points. Sound levels were negatively correlated with sleep duration. The cut-off peak sound level, above which sleep duration was shorter than mean sleep duration in the cohort, was 57.9 dB. Simple smartphone applications can be useful to estimate sound levels in the ICU. There are numerous sources of sound in the ICU. Individual units should identify and eliminate their own sources of sound. Sources of sound producing peak sound levels above 57.9 dB may lead to shorter sleep and should be eliminated from the ICU environment. The sound levels had no effect on sleep quality.

Sound influence on spa park perception in feelings of visitors

2017 ◽  
Author(s):  
Małgorzata Sztubecka ◽  
Maria Mrówczyńska ◽  
Anna Bazan-Krzywoszańska ◽  
Marta Skiba
Keyword(s):  
Human Perception ◽  
Special Kind ◽  
Sound Level ◽  
Health Resort ◽  
Measurement Results ◽  
Noise Measurements ◽  
Permissible Levels ◽  
The One ◽  
The Impact

Noise can have many harmful effects on the recipients, however people exposed to noise on a long-term and regular basis can get used to it, even if the permissible levels are exceeded. In cities, green areas and park systems are provided to create a climate for rest and relaxation. Spa parks are a special kind of such park systems, which – in addition to the above-mentioned features – support therapies offered by spa facilities located there. On the one hand, patients and visitors appreciate various social and entertainment events held there, but – on the other – a multitude of sounds associated with them may reduce the comfort of their stay. The aim of this paper is to analyse the relationship between the results of noise measurements and the human perception of noise within the impact zone. The examined area is a spa park in the health resort district of Inowrocław, where seasonal measurements (taken in summer and winter) provided a basis for the determination of the connection between the measured values of equivalent sound level and the noise level perceived by surveyed people. A statistical analysis was performed to take into account the correlation between the obtained measurement results and the human perception of noise. It shows some differences in the perception of heard sounds. The results allow an evaluation of the soundscape of the analysed area.

Environmental Noise and Annoyance in the Urban Area at Different Time Intervals

2014 ◽  
Vol 617 ◽  
pp. 110-115 ◽  
Author(s):  
Ľubica Argalášová ◽  
Jana Jurkovičová ◽  
Ludmila Ševčíková ◽  
Zuzana Štefániková ◽  
Katarína Hirošová ◽  
...  
Keyword(s):  
Noise Exposure ◽  
Road Traffic ◽  
Well Being ◽  
Environmental Noise ◽  
Economic Transformation ◽  
Sound Level ◽  
Health Concern ◽  
Road Traffic Noise ◽  
Residential Areas ◽  
The Impact

Environmental (community) noise, particularly road traffic noise, has attracted widespread attention in recent decades as a major environmental health concern. The aim of the study was to determine the impact of environmental noise on psychosocial well-being of young healthy individuals and to follow the time trends of exposure in the period of 10, 15, 20, 25 years. The validated methodology was used to assess noise annoyance, interference with activities and sleep disturbance; the objectification of noise levels was done by direct measurement using sound level analyzer with a module for frequency analysis. The results revealed the sharp increase during the years 1989 and 1999 (the period of political and socio-economic transformation and the changes in traffic management) and the decrease in the year 2013. The findings of our study indicate the need for preventive measures to reduce environmental noise exposure in residential areas and to emphasize the importance of the elaboration of methods for environmental noise exposure risk assessment.

scholarly journals Using Picture Stories and Mind Maps to Improve Narrative Ability of a CI Student

sjesr ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 106-116
Author(s):  
Qurratulain Ershad ◽  
Dr. Sumaira Noreen
Keyword(s):  
Action Research ◽  
Sound Level ◽  
Narrative Writing ◽  
Post Intervention ◽  
Writing Ability ◽  
Three Stages ◽  
Narrative Ability ◽  
Mind Maps ◽  
The Impact ◽  
Writing Tools

This study aimed at investigating the impact of picture storytelling and Mind Maps as pre-writing tools for cochlear implanted student. Action research was conducted to improve cochlear implanted learner’s narrative writing skills with the aid of picture storytelling and mind maps. Number cycles of action-research were carried out to teach narrative writing and mind mapping over a period of two months. Data were collected at three stages of the study which included: pre-intervention, intervention and post intervention. In the pre-intervention stage, data were collected by using pre-writing samples. During the intervention stage, the data were collected through observations. In the post-intervention stage, data were collected by using two post writing samples. This strategy was developed on the assumption that while initially, the cochlear implanted learner would show difficulty in writing narratives and constructing mind maps but gradually the cochlear implanted learner would show less difficulty when the learner would become more acquainted with the strategies. The findings depicted positive outcomes in the writing ability of the participant. The result also showed a sound level of the effectiveness of picture storytelling and mind maps suggesting imperative need to incorporate them in educational settings in order to help cochlear implanted learners to write to their maximum potential.

Development of the Sound Metric for the Impact Sound of a Car Using Wavelet Transform

2009 ◽  
Author(s):  
Eun Woo Na ◽  
Ho-Wuk Kim ◽  
Sang Kwon Lee
Keyword(s):  
Wavelet Transform ◽  
Sound Level ◽  
Quality Characteristic ◽  
Subjective Rating ◽  
Passenger Cars ◽  
Impact Noise ◽  
The Mean ◽  
Sound Metric ◽  
High Level ◽  
The Impact

Vehicles experience the impact due to harsh road conditions. Contact with a barrier on a road induces vehicles to vibrate, which brings about impact noise of high sound level. The attenuation of impact noise is an important issue since car passengers may complain about the impact noise. However, Perfect removal of impact noise is not possible as most of impact noise is caused by external conditions. It is thus necessary to make vehicles to possess more desirable sound quality characteristic of impact sound. More research is needed on objective attributes of impact noise; it is not a simple matter since impact noise is transient in nature and has a high level of sound at an instantaneous moment. A new objective attribute of impact noise is designed by using wavelet transform. Wavelet transform is appropriate for the analysis of transient signals such as impact noise. The usefulness of new objective attribute, which is a sound metric, is examined by comparison with the mean subjective rating for real impact noise of passenger cars. The new sound metric has better correlation with the mean subjective rating than already existing sound metrics.

Impact sound transmission: experiments of control at the receiver room

2021 ◽  
Vol 263 (1) ◽  
pp. 5595-5599
Author(s):  
Davi Akkerman ◽  
Paola Weitbrecht ◽  
Mariana Shieko ◽  
Marcel Borin ◽  
Leonardo Jacomussi
Keyword(s):  
Social Housing ◽  
Sound Transmission ◽  
Field Tests ◽  
Sound Level ◽  
Sound Insulation ◽  
Total Cost ◽  
Acoustic Performance ◽  
The Impact ◽  
Insulation Performance

Considering Impact sound level requirements accomplishment in Brazil, floating floors are still considered as an inviable solution for building companies due to the implications in the total cost of building, mainly for social housing. Alternative and sometimes cheaper solutions are those undertaken in the receiver room. However, the lack of laboratory and field tests on the acoustic performance of this type of system is still a barrier for acoustic designing in Brazil. The aim of this paper is to study and validate different constructive solutions developed jointly with building companies for improving the impact sound insulation performance on the receiving room of new Brazilian housing constructions.

Anthropogenic Sound: Effects on the Behavior and Physiology of Fishes

2003 ◽  
Vol 37 (4) ◽  
pp. 35-40 ◽  
Author(s):  
Arthur N. Popper ◽  
Jane Fewtrell ◽  
Michael E. Smith ◽  
Robert D. McCauley
Keyword(s):  
Hearing Loss ◽  
Inner Ear ◽  
Stress Responses ◽  
Marine Mammals ◽  
Marine Invertebrates ◽  
Sound Level ◽  
Sensory Cells ◽  
Sound Levels ◽  
Anthropogenic Sounds ◽  
The Impact

Anthropogenic sound in the marine environment continues to increase. Sound sources range from increased vessel traffic to transient but intense sounds such as those produced by seismic air guns, pile driving, or some sonars. While most interest in anthropogenic sounds has focused on marine mammals, there is an increasing concern regarding the impact of such sounds on fishes and marine invertebrates. Since the inner ear hearing receptors of fishes are similar to those of marine mammals, any effects seen on the hearing receptors of marine mammals may also be found in fishes and vice versa. Despite increasing interest in the effects of sounds on fishes, this issue has only been addressed on the most limited scale. Here we review the current literature in this area. It has been reported that high sound levels can damage the inner ear sensory cells, produce hearing loss (threshold shifts), elicit stress responses, and alter the behavior of fishes. At least in terms of hearing loss, these effects are modulated by exposure sound level and duration. The effects of various types of sound (e.g., impulsive vs. continuous) and long-term impacts of how anthropogenic sounds affect the behavior and ecology of fishes need exploration in the future.

Participatory Noise Mapping: Harnessing the Potential of Smartphones Through the Development of a Dedicated Citizen-Science Platform

2017 ◽  
Author(s):  
Eoin A. King ◽  
Akin Tatoglu ◽  
Robert D. Celmer
Keyword(s):  
Citizen Science ◽  
Mobile Apps ◽  
Low Cost ◽  
Environmental Noise ◽  
Sound Level ◽  
Noise Mapping ◽  
Measurement Variability ◽  
Noise Measurements ◽  
Noise Assessment ◽  
The Impact

This paper presents results of an ongoing project which aims to develop a purpose-built platform for using smart phones as alternative to sound level meters for citizen-science based environment noise assessment. In order to manage and control environmental noise effectively, the extent of the problem must first be quantified. Across the world, strategic noise maps are used to assess the impact of environmental noise in cities. Traditionally, these maps are developed using predictive techniques, but some authors have advocated the use of noise measurements to develop more reliable and robust noise maps. If adopted correctly, smartphones have the capability to revolutionize the manner in which environmental noise assessments are performed. The development of smartphone technology, and its impact on environmental noise studies, has recently begun to receive attention in the academic literature. Recent research has assessed the capability of existing smartphone applications (apps) to be utilized as an alternative low-cost solution to traditional noise monitoring. Results show that the accuracy of current noise measurement apps varies widely relative to pre-specified reference levels. The high degree of measurement variability associated with such apps renders their robustness questionable in their current state. Further work is required to assess how smartphones with mobile apps may be used in the field and what limitations may be associated with their use. To over come the above issues, this project is developing a platform specifically for citizen science noise assessment. The platform consists of a smartphone app that acquires a sound signal and transfers the data to a server via a web based API for post processing purposes. This then returns key information to the user, as well as logging the data for use in a massive noise mapping study. The structure of the proposed platform maintains a clear separation between client (phone) and server. This approach will allow implementation of future open source client side apps for both Android and iOS operating systems.

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