Anugrah Sabdono Sudarsono

Bandung Institute of Technology | ITB · Engineering Physics

Kotagede, the capital of the ancient Mataram Kingdom and currently an area in the Yogyakarta Province of Indonesia, is known as a ‘real living museum’. It was previously a residential area with many vital premises and heritage buildings that became a tourist area. Its locally established activities enrich the visual and sound environment of the vic...

This paper presents the outcomes of the “Soundscape Attributes Translation Project” (SATP), an international initiative addressing the critical research gap in soundscape descriptors translations for cross-cultural studies. Focusing on eighteen languages – namely: Arabic, Chinese, Croatian, Dutch, English, French, German, Greek, Indonesian, Italian...

The ISO 12913-3 method A of part 2 is a standardized method to calculate the score of pleasantness and eventfulness according to the rating of standard soundscape attributes mentioned in ISO 12913-2. However, implementing the attributes might result in invalid measurement if the attributes are used directly for sound-scape studies in non-English sp...

This study aims to optimize the acoustic condition of a pyramidal ceiling mosque utilizing a simulation approach. The simulation was done using I-Simpa, simulating the room acoustic parameters of 15 m x 15 m x 5 m and a 5 m roof height of a mosque. The optimization was accomplished by varying the occupancy level and using absorbent materials. The b...

Yogyakarta is a city rich in culture and heritage, making it the second tourist destination in Indonesia after Bali. However, unlike Bali, Yogyakarta losses its intangible uniqueness quicker. This paper explores societies' and stakeholders' perceptions of Yogyakarta's soundscape, particularly the vanishing soundmark. Quantitative and qualitative ap...

The ISO/TS 12913-2:2018 document for soundscape data collection provides a questionnaire instrument for researchers and practitioners to use worldwide, but its applicability has been questioned, since it's only available in English. To address the lack of research on translations of the soundscape descriptors proposed in Method A of the ISO technic...

Noise control is still one method to improve the urban acoustic environment in many countries, including Indonesia. The noise control tries to reduce the sound level in a particular space to increase comfort. In other words, the acoustic environment is designed to be comfortable and uneventful. Previous studies have shown that public spaces in Indo...

The condition of living plays a vital role in the online learning process at home. The residential need for support in the learning process was seen when Covid-19 forced students to study from their residences. However, residences not designed for students to carry out the learning process from home result in the focus/concentration in the process...

The purpose of this study is to optimize the acoustics of a community mosque utilizing a simulation approach. The simulation was done using I-Simpa which simulated the room acoustic parameters of 15 × 15 × 5 m mosque. The optimization was accomplished by varying the absorption and reflection material of the ceiling. The best acoustic condition was...

Like other developing countries where traffic is a significant sound nuisance, traffic in Indonesian urban areas is boisterous. How this condition is regulated by the Indonesian government so that the community can live healthily and comfortably is a very crucial issue. Unfortunately, Indonesia has not had any sound environmental improvement since...

In this study, the absorption coefficient of a thin parallel MPP for random incidence field is investigated. A coiled backing air cavity realizes the thin structure, and the parallel configuration is applied to have a wider sound absorption bandwidth than a single MPP. The effects of the oblique sound incidence on the thin parallel MPP are investig...

Irresponsible noise management by the concerned authorities and society’s indifference has made noise in Indonesian urban areas a nightmare. The current noise regulation in Indonesia, which define 55 dB(A) as the lowest permissible noise level generated in residential areas, is outdated. This study investigates how urban communities reacted to the...

Covid 19 pandemic affected learning methods from offline to online. All parties involved in learning need to make various adaptations so that the learning process can run effectively. Students are required to focus on education at home (School from Home/SFH). The architectural learning method prioritizes practice in designing called Studio Class. I...

Reducing CO2 emission through innovation discovery is essential to respond to the global warming issue. The research states that construction material contributes 11% of CO2 emission on building. Agricultural waste in Indonesia is plentiful, but it has not been used optimally, one of examples is corncob waste. The study to theoretically identify th...

Buku ini didisain sebagai bekal para praktisi di bidang akustik untuk mempelajari konsep-konsep akustik dan pengetahuan praktis yang dibutuhkan saat bekerja di lapangan. Pengetahuan tersebut diberikan dalam bentuk materi dan eksperimen yang dapat dilakukan dengan alat dan perangkat lunak yang mudah di akses. Dalam buku ini dibahas aspek-aspek yang...

Soundscapes are affected by several factors and one of them is the activities done in the space concerned. People expect different acoustic environments for different activities, but there is no specific guidance for designing an ideal acoustic environment for different activities. This study aimed to identify ideal urban acoustic environments for...

The concept of soundscape aims to provide a more holistic understanding of the acoustic environment by taking several aspects into account, such as human perception, the acoustic environment and the context of the space. The soundscape concept is primarily concerned with the human experience and is considered more effective to access the acoustic q...

Microperforated panel (MPP) absorber progress has continued with various configurations for a relatively narrow bandwidth. Serial, parallel, and a combination of serial and parallel (hybrid) configurations of MPPs have been proposed to address the bandwidth problem, and experimental results agree well with theoretical ones. However, considerable sp...

This study evaluated the building performance of a hypothetical elementary school classroom considering its annual energy consumption, daylight criteria, and adaptive thermal comfort in Lhokseumawe, Indonesia. Variations in building materials, construction, and horizontal shading features were evaluated for the most optimal design solution. The aim...

Using bamboo particle board as a wall divider, a furniture component, or an automotive component with a sound absorber function may be a viable option for architects and engineers seeking to achieve desired acoustical qualities, including noise reduction. However, there is still a dearth of research on the effect of particle board finishing and coa...

This paper aims to report results and lesson learned from students assignments in integrating thermal, energy, lighting, and acoustic performance in a building simulation project. The objectives are to observe the students approach in obtaining the baseline, target, and optimum performance in all mentioned aspects, and to analyse the differences be...

A café is a type of restaurant that typically serves coffee and tea, in addition to light refreshments such as baked goods or snacks. Nowadays, students also consider cafés as a social place to do various activities. The different activities might need a different environment. However, the existing studies regarding the soundscape in a café do not...

ISO 12913-1, 12913-2, and 12913-3 have standardized soundscape evaluation from different aspects such as definition and framework, data collection methods, and data analysis. Central to ISO 12913-2 is that an acoustic environment can be evaluated based on perceptual attributes standardized only in English. These perceptual attributes might be inter...

A café is a type of restaurant that typically serves coffee and tea, in addition to light refreshments such as baked goods or snacks. Nowadays, students also consider cafés as a social place to do various activities. The different activities might need a different environment. However, the existing studies regarding the soundscape in a café do not...

As a large country with thousands of ethnic groups and cultures, it is hoped that every city in Indonesia will have its uniqueness. However, preliminary data collected from 10 major cities in Indonesia shows no uniqueness. The most visited public places in these cities, i.e. parks and squares, which are generally associated with natural sounds, are...

The open plan office provides efficiency in energy consumption, spaces, and flexibility in communication between staff. However, it causes a higher disruption for the work environment, both for visual and audial. The application of sound absorber has become the main part to achieve a better acoustics condition. In a large room, applying ceiling abs...

The sonic environment in passenger train was commonly analyzed using energy based-approach considering the value of sound pressure level. Lower sound pressure level doesn't always mean more comfortable sonic environment. Human perception is more sensitive to spectrum shape and different sound sources. A different class of train may produce differen...

In open plan office concept, the acoustical distraction problems have become a common problem. Besides, it also needs to deal with thermal issues to have a comfortable work environment. Since the concern of sustainable design is highly discussed, design solutions need to consider energy-saving and environmental health. Commonly sound absorber mater...

A city ideally possesses a unique identity that differs it to others, so both dwellers and visitors are easy to identify places. Features in the city that made it unique shall also be friendly to inclusive users, including those with special needs. It is easily spotted in the cities of emerging countries that people with special needs are hardly ac...

The valuation of pavements using sound aspects is crucial for a country with poor pavement conditions and a large population of visually impaired people. This study recruited sighted and visually impaired participants to conduct a “soundwalk” to appraise the urban pavements. It was held in-situ on nine renovated pavement segments in Surabaya, Indon...

Similar to normal-sighted people, visually impaired people also like to spend leisure time in shopping malls. Regrettably, public facilities in developing countries hardly accommodate the visually impaired, who mainly use their sense of hearing. A soundwalk method was employed to collect the sonic perception of sighted and visually impaired people...

An initial study to map the unique sound variations in ten cities in Indonesia was carried out. The data was provided by local urban experts. Each expert provides resumes of the three most favourite public places and the typical sound environment in each place. Using the classification of public places by Carr (1992) and a modest statistical analys...

While conducting focus group discussions about shopping malls with visually impaired people from previous studies, it was inadvertently known that these people also like watching movies. A soundscape survey with a closed-ended questionnaire constructed from semantic attributes raised during the discussion was used to collect data about how they enj...

Soundscape analysis has become a powerful tool to understand the acoustic environment. Most of soundscape analysis methods focus on how people experience the sonic environment and the perception data is collected while experiencing the environment. The different approach is introduced for soundscape analysis by focusing more on people's memory and...

The recently published ISO/TS 12913-2:2018 standard aims to provide researchers and practitioners around the world with a reliable questionnaire for soundscape characterization. The ISO Technical Specifications report protocols and attributes grounded in the soundscape literature, but only includes an English version. The applicability and reliabil...

Buku ini membahas tentang kondisi akustik masjid dan bagaimana meningkatkan kualitas akustik dari sebuah masjid. buku ini terdiri dari 6 bab yaitu: Memahami Akustik pada Masjid Identifikasi Permasalahan Terkait Suara di Masjid Pengantar Sistem Tata Suara untuk Masjid Skematis Sistem Tata Suara yang Direkomendasikan untuk Berbagai Tipe Masjid Permas...

The study aimed to investigate the specific soundscape dimension of visually impaired people and to learn about the possibly unique soundscape dimension elicited by the hearing sense alone. The soundscape dimension of the visually impaired will be used as a reference for improving urban parks to accommodate users inclusively. A semantic-scale quest...

Pada konsep desain dan operasional bangunan saat ini, telah diketahui pentingnya pemahaman atas fisika bangunan, yaitu segala sesuatu yang terkait dengan aspek-aspek fisis, khususnya terkait termal, pencahayaan, dan akustik pada suatu lingkungan binaan, baik ruang dalam maupun ruang luar, yang bertujuan menyediakan lingkungan yang sehat, nyaman, da...

Many studies have been conducted to predict urban soundscape based on acoustic parameters. In this study, the prediction of urban soundscape composition based on acoustic ecology and MFCC parameters is conducted using binary logistic regression. Six parameters of acoustic ecology (ACI, ADI, AEI, BI, H, and NDSI) and 12 MFCC parameters were used to...

One of the factors that affect human activity in the urban open public is the acoustic environment. The acoustic environment consists of many aspects such as sound sources, noise condition, and perceptions. This study tries to analyze the relationship between human activity and the perceived expectation of public spaces in the urban area. The exper...

In Indonesia, the hospital ward is classified according to the number of beds inside the ward. Third class ward is the lowest class, which consist of six or eight beds inside the ward. In this study, the soundscape of a third-class hospital ward is analysed on different time of the day. The analysis is conducted based on noise level measurement, so...

Passenger's train is an environment where people are exposed by mechanical sound and the sound of human activity. The passengers need to be in the same acoustic environment for a period of time, so a comfortable environment is a necessity. Soundscape intervention can be applied in this case with the consideration of passenger's activity. This study...

In Indonesia, the categorisation of the hospital ward is determined based on the number of beds. Third class hospital ward (the lowest class) is the ward which consists of more than four beds inside the room. This type of ward is typical in a developing country and might have different acoustic problems compared to the standard ward. This study aim...

In general, soundscape study conducted by letting the participants to have the experience of the actual soundscape. This method usually conducted using in situ soundwalk or soundscape reproduction. Soundscape composition has become one of the methods to understand the soundscape of urban area based on human memory. In this study, the concept of sou...

One of the methods to analyse a soundscape is by reproducing the acoustic environment. The acoustic environment reproduction usually conducted using multi-speaker systems in a laboratory. The experiment usually conducted individually resulting limited respondent of the experiment. A web-based experiment is one of the alternatives to do the soundsca...

The human perception of environment condition is one of the aspects that greatly affect the use of open public space in a built environment. Studies related to the perception generally observe only one physical aspect in an isolated manner, in which the interrelationships between physical aspects are not considered. In the meantime, human beings ar...

According to UNESCO Convention 1972, cultural heritage consists of tangible and intangible heritage. Soundscape has been considered as a part of the intangible heritage, and it refers to the perceptual quality. In the realm of built environment, perceptual qualities become important concerns, since cultural heritage cannot be described and apprecia...

The assessment for acoustic comfort in an urban space is not only based on the terms of sound level limit alone but also based on how one feels and understands the surrounding of their acoustic environment. This concept is known as soundscape. Several methods of soundscape assessment have been developed to gain a personal perception towards the aco...

This study tries to understand how people perceived the sound quality in a mosque. The experiment is conducted based on a web-based questionnaire asking about existing sound condition in a mosque. The verbal response is analysed using text mining technique. The verbal response shows that the most frequent terms used are related to the subjective pr...

Aural experience of a space, or soundscape, is one of the factors that influence visitor’s comfort in a park. An ideal park should able to provide a tranquil environment and noiseless condition, dominated by the presence of natural sounds. The acoustical condition of the park’s environment is therefore an indicator of a good park. This study aims t...

The development of electric railway train has been growing rapidly in the last few years. Comfort is one of the important aspects in electric railway cabin, including the acoustic comfort. İn this paper, noise reduction efforts for air conditioning system of electric railway trains are discussed. Air-borne noise and structure-borne noise are consid...

Acoustic comfort is an important aspect of a train. One of the common methods to analyze the acoustic comfort of a train is based on the noise measurement. Argo Parahyangan is one of most popular train in Indonesia. This train consists of the economy and executive cabin and operated started from 04.00-20.00 WIB. This study tries to analyze the nois...

Urban parks in a developing country hardly accommodatepeople with disability. The objective of this study is to investigate thepossibility of improving urban parks using the perception of visuallyimpaired people of urban parks’ sonic environment. This study wasconducted off-site the urban park using a questionnaire survey with twogroups of particip...

Noise analysis of urban area is usually conducted according to noise level measurement. The noise level measurement concept only considers how loud the overall acoustic environment but not how people perceived each sound source. The soundscape concept has become a new alternative to analyse acoustic environment. This concept tries to understand the...

The study of soundscape in laboratory usually conducted by reproducing acoustic environment recording or simulated acoustic environment. Different method has been developed to understand the soundscape in the laboratory using acoustic environment composition. The soundscape composition has been validated and implemented for outdoor urban soundscape...

Celempung is a Sundanese traditional instrument from West Java, Indonesia made from bamboo internode. This instrument has three bamboo strings which cut out from the body of celempung itself. Celempung is played by hitting the bamboo strings using bamboo stick and hitting the open section at the end of bamboo by hand. The aim of this study is to de...

Urban Park is usually described as a calm and tranquil space where the citizen could perform various activities such as physical, social, recreational, and relaxation. In contrast to the general expectation, urban parks in Bandung area are located next to main roads and thus are being exposed to a substantial traffic noise. However, the parks are s...

One of the method for reproducing soundscape is using headphone. The level of repro-duction usually calibrated using dummy head according to the actual sound level. The ac-tual sound level usually measured using measurement microphone or sound level meter which capture the sound from every direction. In contrast, the calibration for headphone condu...

Acoustic environment of intensive care unit (ICU) is known to be noisy and stressful. The sounds from medical equipment and staffs' activity is found out to give the most contribution in the overall sound level inside the ICU. Many study has shown its negative effect for patients and staffs, both psychologically and physiologically. However, severa...

In real condition, the speech signal used in speaker recognition system are recorded by different types microphone. Specifically, in the forensic application in Indonesia, it is commonly found that the questioned speech sample is generally from a wire-tapped/ GSM-taped conversation. Meanwhile, the reference speech sample is recorded in an investiga...

A soundscape is affected by the context from three aspects: auditory sensation, interpretation of auditory sensation, and the response of the sonic environment. The interpretation of auditory sensation is affected by expectation experience and behaviour in a sonic environment. In passenger’s train, the interpretation of the sonic environment might...

Acoustic quality is one of the important aspects of urban design. It is usually evaluated based on how loud the urban environment is. However, this approach does not consider people's perception of the urban acoustic environment. Therefore, a different method has been developed based on the perception of the acoustic environment using the concept o...

Previous studies have shown relationships between sound objects by grouping general sound objects according to how people perceive them (i.e. positively or negatively), but not according to how specific sound objects and their interaction affect soundscape perception. Soundscape composition using an acoustic environment simulator is introduced to a...

Train is one of transportation which has high demand and most preferred transport in Indonesia. It also has several advantages over the other public transport, including not requiring wide land and can go directly to the center of the city. As a public transport, the most important aspect to be considered is passenger's comfort. In this study, soun...

The aim of this work was to investigate the soundscape perception in campus library. Identification of perceptual dimension has been done using in-situ assessment with 15 semantic differential scales on a questionnaire to 60 college students to achieve appropriate study space. They were bachelor and master students at Institut Teknologi Bandung. Th...

An acoustic environment simulator is a system that facilitates acoustic environment composition by controlling the parameters of sound objects (both background and sound events), allowing the user to compose and compare soundscapes against their expectations. By using the acoustic environment simulator, data regarding parameters of sound objects, s...