scholarly journals Design of Sound Level Meter Using Sound Sensor Based on Arduino Uno

2018 ◽  
Vol 19 (2) ◽  
pp. 111
Author(s):  
Laura Anastasi Seseragi Lapono ◽  
Redi Kristian Pingak
Keyword(s):  
Noise Level ◽  
Sound Intensity ◽  
Sound Level ◽  
Design System ◽  
Sound Level Meter ◽  
Measurement Result ◽  
Measurement Results ◽  
Arduino Uno ◽  
Improved Performance ◽  
Level Meter

Sound Level Meter (SLM) is a tool used to measure the noise level for a moment. For improved performance, hence required a measure of noise level capable of displaying result automatically on the computer so that simplify user to observe and measure the noise. In this study, the design system of data acquisition consists of a MAX4466 sound sensor, Arduino UNO microcontroller, and computer to display the measurement result. The measurement results are displayed in the form of data and graphs. The display of software designed using the Delphi 7.0. The process of taking data in the room with a sound intensity of 44.6 dB. The value is the measurement result using the SLM tool, while the measurement results using the sound sensor performed every second during an interval of 30 seconds obtained an average of 44.19 dB. It can be seen that between the two results shows a relatively small difference, so it can be concluded that the design of this system is running well. Keywords: Noise, SLM, Sound sensor, Arduino Uno

scholarly journals Tingkat Kebisingan dan Perambatan Suara Akibat Bunyi Luar Pada Gereja Masehi Injili Minahasa (GMIM) Kampus Unsrat dan GMIM Bethesda Manado

2021 ◽  
Vol 21 (2) ◽  
pp. 130
Author(s):  
Sangkertadi Sangkertadi ◽  
Ronald Manganguwi
Keyword(s):  
Sound Source ◽  
Noise Level ◽  
Sound Propagation ◽  
Sound Level ◽  
Sound Level Meter ◽  
The Road ◽  
Measurement Results ◽  
Sound Reception ◽  
Level Meter

Penelitian ini bertujuan untuk mengetahui kontribusi dinding dan arsitektur ruang serta jarak gedung ke jalan terhadap reduksi bising dari luar kedalam bangunan, dan distribusi bunyi yang terjadi. Studi kasus pada 2 gereja yaitu gereja GMIM Kampus Unsrat dan gereja GMIM Bethesda Ranotana di Kota Manado. Sebuah sumber bunyi di letakkan di luar ruang dekat pagar pada jarak 12 m terhadap gedung, dengan kuat bunyi konstan namun bervariasi antara 60 sampai dengan 100 dB dengan tahapan setiap 10 dB. Kuat bunyi dihitung dan diukur pada setiap jarak 2 m diruang luar dan dalam Gereja. Pengukuran menggunakan alat sound level meter. Perhitungan menggunakan teori akustik ruang dan software I_Simpa. Hasilnya menunjukkan bahwa konfigurasi arsitektur selubung dan ruang bangunan kedua gereja tersebut dalam keadaan kosong hanya mampu mereduksi bising sebesar 2.2 dan 3.7 dB, dengan jendela terbuka. Dengan sumber suara 100 dB di ruang luar, hasil pengukuran di ruang dalam pada kedua gereja mencapai 69.3 dB(A) dan 56.4 dB(A). Rentang bunyi tersebut masih tergolong bising dan belum memenuhi syarat kenyamanan bunyi untuk jenis bangunan ibadah menurut SNI. Visualisasi distribusi bunyi dengan menggunakan software I_Simpa, menunjukkan peran bukaan pintu dan jendela yang menyebabkan kebocoran bunyi kedalam ruangan.Kata kunci: Akustika;  bising; dinding; gereja Noise Level and Sound Propagation Due to Outside Sound at GMIM Church Unsrat Campus and GMIM Bethesda Manado ABSTRACTThis research aims to determine the contribution of walls and architectural interior, and the distance of the building to the road to the reduction of noise from outside into the building as well as the distribution of sound that occurs. Case studies on 2 churches: the GMIM Church of Unsrat Campus and the GMIM Bethesda Ranotana Church, both in Manado City. A sound source was placed outside the room near the fence at 12 m from the building. The sound source was constant but varied from 60 to 100 dB with steps every 10 dB. Sound reception was calculated and measured every 2 m distance at outside and inside. Measurements were carried out using sound level meter. Calculations by acoustic theory and I_Simpa software. The results show that the churches when room is empty, had only able to reduce the noise by 2.2 and 3.7 dB, with opened windows. When a 100 dB sound source was applied, the measurement results in the indoor of the two buildings reached 69.3 dB(A) and 56.4 dB(A). Graphical visualizations of sound distribution by using I_Simpa software, showed the role of door and opened window that cause sound leakage into the room.Keywords: Acoustic; church; noise; wall

scholarly journals ANALISIS TINGKAT KEBISINGAN LINGKUNGAN DI KELURAHAN PAHANDUT KECAMATAN PAHANDUT KOTA PALANGKA RAYA KALIMANTAN TENGAH

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Muh Azhari ◽  
Rudy Yoga Lesmana
Keyword(s):  
Noise Level ◽  
Qualitative Method ◽  
Air Transportation ◽  
Sound Level ◽  
Sound Level Meter ◽  
Google Maps ◽  
Average Value ◽  
The Third ◽  
Level Ii ◽  
Level Meter

Permasalahan lingkungan dari usaha kegiatan manusia untuk memenuhi kebutuhan hidup, seperti sandang, pangan, papan dan transportasi harus dilakukan penanganan dengan baik. Misalnya seperti pengaruh kegiatan transportasi udara terhadap kondisi kualitas lingkungan setempat  seperti kegiatan di Bandara Cilik Riwut Kelurahan Pahandut, Kecamatan Pahandut, Kota Palangka Raya Kalimantan Tengah. Metode penelitian yang digunakan merupakan metode kualitatif dengan analisis data instrumen seperti Sound Level Meter Instrument, Anemometer, GPS, Flight Radar, Google Maps Application & WECPNL Instrument (Weighted Equivalent Continuous Perceived Noise Level)  dan pengambilan data dilakukan selama tiga hari sesuai dengan kedatangan dan keberangkatan pesawat. Hasil penelitian dengan analisis WECPNL menunjukkan bahwa tingkat kebisingan di hari ke 2 lebih besar dibandingkan hari ke 3 dan hari ke 3 lebih besar dari hari ke 1 (87,2  > 82,2 > 75,9) dengan nilai rata-rata WECPNL sebesar 81,7. Kebisingan di bandara Cilik Riwut di Kota Palangka Raya Kalimantan Tengah termasuk kebisingan regional tingkat II dan III. Kegiatan yang dapat dilakukan untuk meminimalisir Risiko kebisingan tersebut yaitu dengan melakukan kegiatan rekayasa keteknikan dan menanam vegetasi yang berfungsi mengurangi kebisingan Kata kunci: Bandara, Kebisingan, Lingkungan. The environmental problems of the efforts of human activities to meet the needs of life, such as clothing, food, housing and transportation must be handled properly. For example, such as the influence of air transportation activities on local environmental quality conditions such as activities at Cilik Riwut Airport, Pahandut Village, Pahandut District, Palangka Raya City, Central of Kalimantan. The research method used is a qualitative method with data analysis instruments such as Sound Level Meter Instrument, Anemometer, GPS, Flight Radar, Google Maps Application and WECPNL Instrument (Weighted Equivalent Continuous Percepived Noise) and data collection is carried out for three days in accordance with the arrival and departure of the aircraft. Results of research with  WECPNL analysis show that the noise level on the second day is greater than the third day and the third day is greater than the first day (87,2  > 82,2 > 75,9) with  score average value is 81,7. Noise at Cilik Riwut airport in Palangka Raya City, Central Kalimantan including regional level II and III noise. activities that can be carried out are carrying out engineering activities and planting vegetation which have the function of reducing noise. Keyword: Airport, Environmental, Noice.

scholarly journals Analysis of Angklung Sound Intensity as a Acoustic Instrument

2017 ◽  
Vol 2 (1) ◽  
pp. 122 ◽  
Author(s):  
Rizka Silviana Hartanti ◽  
Budi Astuti
Keyword(s):  
Research Method ◽  
Sound Intensity ◽  
Sound Level ◽  
Tube Length ◽  
High Tone ◽  
Sound Level Meter ◽  
Independent Variable ◽  
Constant Distance ◽  
Low Tone ◽  
Level Meter

<p style="text-align: justify;">The purpose of this study was to analysis of angklung sound intensity. The research method is using angklung musician 2 octaves. Each consists of two tube tone that sounded from the tone of G to G ', length and diameter of the tube every tone becomes independent variable, while intensity of the sound produced becomes dependent variable. Sound intensity is measured using a Sound Level Meter is placed with a constant distance. The result showed that G tone was a low tone which had a frequency of 49.5 Hz, first tube had 21.6 cm length and 4.1 cm diameter, second tube had 10.1 cm length and 3.4 cm diameter produced the sound intensity of 90.7 dB. G’ tone was a high tone which had a frequency of 99 Hz, first tube had 10 cm length and 3 cm diameter, second tube had 5.5 cm length and 2.1 cm diameter produced the sound intensity of 99.1 dB. It can be concluded that the higher the frequency, the greater the intensity of the sound produced. The shorter tube length and the smaller tube diameter, the greater the intensity of the sound. ©2016 JNSMR UIN Walisongo. All rights reserved.</p>

Tingkat Kebisingan di Sekolah Sekitar Perlintasan Kereta Api

2017 ◽  
Vol 2 ◽  
pp. 62
Author(s):  
Faradiba Faradiba
Keyword(s):  
School Environment ◽  
Noise Level ◽  
Negative Impact ◽  
Descriptive Analysis ◽  
Data Retrieval ◽  
Sound Level ◽  
Sound Level Meter ◽  
Measurement Point ◽  
Cross Sectional ◽  
Level Meter

<p class="AbstractEnglish"><strong>Abstract:</strong>. Noise is a sound that can cause discomfort. One of them is rail activity. Noise generated enough to bring negative impacts to the surrounding environment, especially in the school environment.. This research uses descriptive analysis method with cross sectional approach. The location of this research is the school that is right next to the railway crossing i.e. SMA Negeri 37 Jakarta. Noise level data retrieval is performed using a sound level meter applications android-based. The data measured by the instantaneous sound pressure level for 5 minutes, or Leq (5 minutes) for each measurement point. There are 5 point measurements. From the results of measurements at SMA Negeri 37 Jakarta gained an average noise level for 5 measurement point is 70.50 dB. The figure exceeds the threshold if refers to the Kep-48 MNLH/11/1996 to 55,00 dB maximum school environment. Necessary noise control efforts at that school to minimise the negative impact caused. Because of the higher the intensity of noise, the more negative impact, especially for students in the school.<strong></strong></p><p class="KeywordsEngish"> </p><p class="AbstrakIndonesia"><strong>Abstrak:</strong> Bising merpukan sebuah bunyi yang dapat menimbulkan ketidaknyamanan. Salah satu yang mengakibatkan timbulnya suara bising yang cukup tinggi adalah aktivitas kereta api. Kebisingan yang dihasilkan cukup membawa dampak negatif bagi lingkungan disekitarnya, khususnya di lingkungan sekolah. penelitian ini menggunakan metode analisis deskriptif dengan pendekatan <em>cross sectional. </em>Lokasi penelitian ini adalah sekolah yang berada tepat di samping perlintasan rel kereta api yaitu SMA Negeri 37 Jakarta.<em> </em>Pengambilan data tingkat kebisingan dilakukan dengan menggunakan aplikasi <em>sound level meter</em><em> </em>berbasis android. Data diukur dengan tingkat tekanan bunyi sesaat selama 5 menit, atau Leq (5 menit) untuk setiap titik pengukuran. Terdapat 5 titik pengukuran. Dari hasil pengukuran pada SMA Negeri 37 Jakarta diperoleh rata-rata tingkat kebisingan untuk 5 titik pengukuran adalah 70,50 dB. Angka tersebut melebihi ambang batas jika merujuk pada Kep-48 MNLH/11/1996 untuk lingkungan sekolah maksimum 55 dB. Diperlukan upaya-upaya pengendalian kebisingan pada sekolah tersebut untuk meminimalisir dampak negatif yang ditimbulkan. Karena semakin tinggi instensitas kebisingan semakin memberikan dampak negatif khususnya bagi siswa di sekolah  tersebut.</p>

scholarly journals Perbaikan Tingkat Kebisingan pada Ruang Produksi Yessy’s Collection dengan Pendekatan Ergonomi

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Afgan Suffan Aviv ◽  
Bambang Suhardi ◽  
Pringgo Widyo Laksono
Keyword(s):  
Work Environment ◽  
Noise Level ◽  
Threshold Value ◽  
Sound Level ◽  
Physical Work ◽  
Level Measurement ◽  
Measurement Results ◽  
Physical Work Environment ◽  
Level Meter ◽  
Physical Environmental Factors

<p><em>Implementation of ergonomics is generally a design or redesign. One of them may include the design of the physical work environment. Ergonomic work environment conditions are provide comfort and security for workers. Physical environmental factors that can affect the comfort and safety of noise level.  A good physical work environment will increase work capability or labor productivity. In a work environment, workload assessment can also be carried out to measure worker conformity and comfort. Workload assessment is carried out simultaneously with measurement of noise level . </em></p><p><em>Whose problematic noise, the industry is located in Tawangsari RT 03 RW 34 Mojosongo, Jebres, Surakarta named Yessy's Collection. Measurement of noise level to improve worker comfort, so that productivity increases. The methode used is measurement using 4 in 1 Environment on sound level meter function illustrated with Software Surfer 11.</em></p><em> The noise level measurement results are below the specified threshold value except at 1 coordinate in swabing station (stasiun penyesekan),that is  at above threshold value. To proposed improvements as noise control is engineering control, administrative control and use of PPE</em>

scholarly journals Noise level evaluation in the resin figures manufacturing process

2021 ◽  
pp. 114-128
Author(s):  
Viviano GARCÍA-SANCHEZ ◽  
◽  
Daniel MALDONADO-ONOFRE ◽  
Luis Antonio MIER-QUIROGA ◽  
Elvis COUTIÑO-MORENO ◽  
...  
Keyword(s):  
Manufacturing Process ◽  
Noise Level ◽  
Preventive Measures ◽  
Sound Level ◽  
Sound Level Meter ◽  
The North ◽  
Analysis Of Results ◽  
State Capital ◽  
Level Meter

The investigation allowed the evaluation of the levels of noise in dedicated factories to the manufacture of decorativas resin figures, located in a population of the north of the Municipality of Toluca State Capital of Mexico. The study was developed with the objective to count on a reference mechanism to prevent risks to the health derived from the level with exhibition to the noise generated in this type of facilities, in such a way that the proprietors can protect to their personnel guaranteeing the development of their activities and not see themselves involved in labor demands. The investigation was limited the study of a single factory solely that is representative of the activities that are made normally in all the factories located in the zone, of which exist more than 50. For the measurements of the noise level, an integrating sound level meter was used type 2, of mark CEL Instruments® model CEL-328 and for the calibration of this was used an acoustic calipers mark CEL Instruments®, model CEL-282, series 2/11616221; the measurements and calibration were made taking in account the effective legislation in the matter of noise according to the Official Norm Mexicana NOM-011- STPS-2001, Conditions of Security and Hygiene in the Centers of Work Where Noise Is generated. Of the analysis of results it was observed that the level of noise in the areas of rectified and music, was with a NSCEAT, greater of 90 dB and in the remaining areas was smaller, but require of preventive measures since all presented/displayed 80 a greater NSCE of dB. In general the level of exhibition to the noise (NER) of the factory is of 86,6 dB, this value according to the norm applied in this study is necessary to implement some measures that allow to diminish the levels of noise with the purpose of avoiding labor diseases derived from the noise.

scholarly journals Pengukuran Koefisien Absorbsi Bunyi pada Serbuk Gergaji Kayu Nyatoh (Palaquium species) sebagai Bahan Peredam

Jurnal MIPA ◽  
2014 ◽  
Vol 3 (1) ◽  
pp. 16
Author(s):  
Rizky Kurniawan Imban ◽  
As'ari . ◽  
Seni Herlina J. Tongkukut
Keyword(s):  
Grain Size ◽  
Physical Properties ◽  
Mass Density ◽  
Sound Intensity ◽  
Sound Level ◽  
Sound Level Meter ◽  
Particle Board ◽  
Level Meter ◽  
Reflection Intensity ◽  
Initial Intensity

Telah dilakukan penelitian untuk memperoleh nilai koefisien absorbsi bunyi pada papan partikel dari bahan campuran serbuk gergajian kayu nyatoh dan tepung kanji dengan variasi ukuran butir. Papan partikel dibuat dengan komposisi 50 g serbuk gergaji dan 50 g tepung kanji. Papan partikel dibuat dengan rapat massa (ρ) = 0,62 x 103 kg.m-3. Koefisien absorbsi bunyi diukur dengan menggunakan sound level meter, intensitas bunyi yang diukur antara lain intensitas bunyi yang datang, intensitas yang dipantulkan dan intensitas yang ditransmisikan. Intensitas absorbsi didapat dengan mengurangkan intensitas awal ( ) dengan intensitas transmisi ( ) dan intensitas refleksi ( ). Data yang diperoleh dibuat grafik dan dianalisis. Diperoleh hasil bahwa papan partikel yang terbuat dari campuran serbuk gergajian kayu nyatoh dan tepung kanji dengan komposisi 1:1 (sampel 3) adalah papan partikel terbaik sebagai bahan absorbsi bunyi pada penelitian ini. Papan partikel mempunyai sifat fisis: koefisien absorbsi 0,15 cm-1, intensitas refleksi 1,5 dB, intensitas absorbsi 29,45 dB dan efisiensi absorbsi 29,42 %.Research has been conducted to obtain the sound absorbtion coefficient of the particle board from the mixture of the sawdust of Nyatoh and the starch with the variation of the grain size. Particle board is made with the composition of 50 g sawdust and 50 g starch. Particle board is made with the mass density (ρ) = 0.62 x 103 kg.m-3. Sound absorbtion coefficient is measured using a sound level meter, sound intensity is measured such as the intensity of incident sound, the intensity of reflected sound and the intensity of transmitted sound. The intensity of absorbtion is obtained by reducing the initial intensity (I0) with the transmission intensity (IT) and the reflection intensity (IR). The obtained data were graphed and analyzed. The results indicated that the particle board that is made from the mixture of the sawdust of Nyatoh and the starch with the composition 1:1 (sample 3) is the best particle board as sound absorbtion material in this research. The particle board has physical properties: the absorbtion coefficient 0.15 cm-1, the reflection intensity 1.5 dB, the absorbtion intensity 29.45 dB, and the absorbtion efficiency 29.42%. t-f�5y � p ew Roman";mso-ansi-language:SV;mso-fareast-language:EN-US;mso-bidi-language: AR-SA'>Papan partikel dibuat dengan komposisi 50 g serbuk gergaji dan 50 g tepung kanji. Papan partikel dibuat dengan rapat massa (ρ) = 0,62 x 103 kg.m-3. Koefisien absorbsi bunyi diukur dengan menggunakan sound level meter, intensitas bunyi yang diukur antara lain intensitas bunyi yang datang, intensitas yang dipantulkan dan intensitas yang ditransmisikan. Intensitas absorbsi didapat dengan mengurangkan intensitas awal ( ) dengan intensitas transmisi ( ) dan intensitas refleksi ( ). Data yang diperoleh dibuat grafik dan dianalisis. Diperoleh hasil bahwa papan partikel yang terbuat dari campuran serbuk gergajian kayu nyatoh dan tepung kanji dengan komposisi 1:1 (sampel 3) adalah papan partikel terbaik sebagai bahan absorbsi bunyi pada penelitian ini. Papan partikel mempunyai sifat fisis: koefisien absorbsi 0,15 cm-1, intensitas refleksi 1,5 dB, intensitas absorbsi 29,45 dB dan efisiensi absorbsi 29,42 %.

Determination of the level of condensate by recording the noise level in the respiratory circuit of mechanical ventilation devices

2020 ◽  
Vol 22 (3) ◽  
pp. 123-126
Author(s):  
I. V. Geraskin ◽  
V. A. Geraskin ◽  
N. V. Geraskina
Keyword(s):  
Noise Level ◽  
Acoustic Noise ◽  
Breathing Circuit ◽  
Lung Ventilation ◽  
Sound Level ◽  
Artificial Lung ◽  
Sound Level Meter ◽  
Ventilation Apparatus ◽  
Artificial Lung Ventilation ◽  
Level Meter

Abstract. The method of determining the accumulation of condensate by registering the noise level in the respiratory circuit of ventilators is substantiated. According to the proposed method, the condition and performance of the apparatus is monitored during artificial lung ventilation and oxygen therapy. With hardware ventilation, an increasing turbulent flow of a water or gas stream is formed in the respiratory circuit, accompanied by an increase in the noise effect and vibration. An increase in the level of acoustic noise from fluctuations in the accumulation of condensate in gaseous media was recorded by an instrument for objective measurement of sound level a sound level meter. Indicators of noise effects reached a higher level on the wet circuit (the presence of condensation droplets or accumulations of mucus) of the liquid compared with the indicators obtained on the dry breathing circuit. The difference in recorded noise levels reached 10 dB, and increased from 37,73 to 47,36 dB. Areas of the respiratory circuit with the greatest degree of narrowing of the lumen and critical accumulations of water condensate and mucus are a source of turbulence in the air flow and increased noise. In conditions of prolonged artificial ventilation of the lungs, the rate of humidified air-gas flow is constantly changing, especially with hardware modeling of the phases of inspiration and expiration, and an increase in temperature in the humidifier chamber. The proposed technique is designed to identify critical levels of water condensate in the apparatus breathing circuits by recording the intensity of the increase in noise level and choosing the rational mode of operation of medical equipment. Data on the emerging critical situation are displayed on the sound level meter screen and inform medical personnel about the need to rehabilitate the circuit of the artificial lung ventilation apparatus. The primary field of application is resuscitation and intensive care units, medical transport teams during in-hospital or inter-hospital transportation, and surgical operating rooms during inhalation anesthesia.

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