Lesson 5: Noise Control Performance Indices & Ratings (201912A)
Lesson 5 Noise Control Performance Indices & Ratings In building acoustics, there are numerous noise control strategies to reduce the background noise level to the targeted noise criteria (NC) or dBA–the unit for the overall A-weighted equivalent sound pressure level. Since noise control measures vary in multiple aspects, one lesson is clearly not enough to […]
Lesson 4: Structure-bone Noise & Airborne Noise (201912A)
Lesson 4 Structure-bone Noise & Airborne Noise Inside a building, we may hear many kinds of sound, including noise. Not only pleasant sounds, such as birds chirping, that we encounter, but also some disturbing sounds, such as traffic, footsteps, human conversation, and loud music from another room. All these sounds enter the room from many […]
Lesson 3: Noise Criteria: A Background Noise Rating Standard (201912A)
Lesson 3 Noise Criteria: A Background Noise Rating Standard In the previous lesson, we have learned that we can measure the sound pressure level (SPL) of background noise in dB. You also remember that the SPL value can vary in frequencies. From here, you may wonder why we don’t use a single number rating that […]
Lesson 2: Sound pressure level (SPL): Our way to quantify strength of noise (201912A)
Lesson 2 Sound Pressure Level (SPL): Our Way to Quantify The Strength of Noise After we have comprehended what background noise is, let’s talk about how we quantify it. It’s fairly commonplace for us to describe the loudness of sound, including noise, with qualitative terms, such as loud or quiet. But, can you imagine how […]
Lesson 1: Background Noise: Why Is It A Serious Problem? (201912A)
Lesson 1 Background Noise: Why Is It A Serious Problem? If you ask some acoustic consultants what common problem they often deal with, we are pretty sure that one of the answers is noise. If you are a city-dweller, you can find noise almost everywhere. You may hear the sound of annoying car horns from […]
Herwin Gunawan (Principal of ALTA Integra) will be One of the Speakers in RECAV 2017
RECAV 2017 Regional Conference on Acoustics and Vibration (RECAV) 2017 is a conference which has 2 main activities, i.e. research paper publication and workshop in acoustics and vibration. This conference will be held in Bali from 26th – 28th November 2017. Herwin Gunawan as the Principal of ALTA Integra will be one of the speakers […]
ALTA Integra Published Abstracts of Paper about Room Modes and Sound Insulation Panel in RECAV 2017
Conference – RECAV 2017 Regional Conference on Acoustics and Vibration (RECAV) 2017 is a conference with 2 main activities, i.e. research paper publication and workshop in acoustics and vibration. In this conference, ALTA Integra submitted 2 papers about room modes and sound insulation panel. Picture 1. RECAV 2017 This conference is held by Association […]
40% Discount Promo for Architectural Acoustics Consultation for Houses of Worship
In everyday praying in the house together, we might have felt or get a few things or the following issues: 1. Obscurity voice articulation (lecture and prayer) in the room. 2. The clarity of the sound of music or conversation in a particular area are barely audible. 3. The clarity of the sound of music or conversation […]
The Importance of Acoustic Design For Meeting Room, Office, Classroom, Auditorium Hall, School, Music Hall
Often we hear people complain about the acoustics of a room. Complaints such as lack of clarity about the dialogue spoken by the panelists at a conference, the music that sounds frenetic at a rock concert, can not speak quietly at the dining table in a restaurant because the noise level is high, the announcement […]
Air Quality and Occupancy Health
Air Quality and Occupancy Health A building has to be a place that comfortable and healthy for its occupants since people do nearly all of their activities inside a building. One of the aspects that affect human’s health and comfort is air quality. The air quality is talking about what kinds of pollutant contained in […]