ALTA INTEGRA CONSULTATIONPARK ROYAL HOTEL

BOGOR

OUTLINEFOREWORD

BASIC THEORY

CONSULTATION TARGET

SIMULATION

SCHEMATIC AV CONCEPT

FOREWORDPARK ROYAL HOTEL

BOGOR

FOREWORDCLIENT PROFILEPARKROYAL Rainbow Hills Bogor Resort is located amidst Bogor’s spectacular volcanic mountains and picturesque rivers with convenient access to the stunning 18-hole Rainbow Hills golf course

PT Bahana Bukit Pelangi was to build Park Royal Hotel in Bogor. Therefore ALTA INTEGRA asked to do Acoustic & AV Consultation of ballroom & 9 meeting rooms and Noise Control Test of 6 bedrooms & machinery room.

BACKGROUND

FOREWORDCONSULTATION TARGET

NOISE CONTROL

Prevent noise leakage from the Ballroom to meeting & hotel rooms.

FOREWORD

Concept and Budgeting Phase:◦ Architectural Acoustic Concept◦ Building Noise Control Concept

Design Phase:◦ Architectural Acoustic (EASE)◦ Building Noise Control

Tender/Offering Phase:◦ Tender & Review◦ Recommendation of Product & Supplier

PROCEDURESConstruction Phase :

◦ Supervision / Annual Control◦ Technical Meeting (with other consultants and CM)

Testing & Commissioning Phase:◦ Testing, measurement, documentation◦ Report

BASIC THEORYPARK ROYAL HOTEL

BOGOR

BASIC THEORYNOISE CONTROLTransmission Loss

Transmission Loss (TL) is a figure which rates the ability of a material to block sound. It is usually measured in 1/3 octave band intervals. Mathematically it is defined as the ratio of the sound energy transmitted through a material to the sound energy incident on the material.

Level Difference

The difference in the space and time averaged SPL (Sound Pressure Level).

LD = L1-L2

L1 = Averaged SPL in the source room

L2 = Averaged SPL in the receiving room

DnT,w : Weighted Standardized Level Difference. Standardized to a standard 0.5 seconds reverberation time and weighted to provide a single figure value. The results will include flanking transmission so the test is for the total transmission between the rooms, not just the partition.

BASIC THEORYNOISE CONTROLSpeech Privacy Class

SPC values can be used to specify the required speech privacy for new construction or to assess the speech privacy of existing closed rooms . SPC defined as the sum of the measured average noise level at the position of a potential eavesdropper outside the room, and the measured average level difference between a source room average and the transmitted levels at the same potential eavesdropper location.

SPC = LD(avg) + Ln(avg)

LD = Level Difference; L1-L2; dB

Ln = Ambient Noise Level; dB

CONSULTATION TARGETPARK ROYAL HOTEL

BOGOR

CONSULTATION TARGETSOUND TRANSMISSION CLASS (STC)A sound transmission class of 55 decibels in all fixed walls, 48 decibels on all ceiling mounted track moveable walls and/or partitions is required, with sound baffles above the ceiling between adjoining rooms (PPHG Design Guidelines)

CONSULTATION TARGETLEVEL DIFFERENCED = L1 – L2L1 = Ballroom, 100 dBL2 = Corridor, 55 dB

DnTw+C = 100 – 55 = 45 dB

With the assumption 100dB noise in the Ballroom, Level Difference needed to meet the requirements is 45dB.

CONSULTATION TARGETSPEECH PRIVACY CLASS

SPC = LD(avg) + Ln(avg)75 = LD + 45LD = 75-45LD = 30dB

Level Difference needed to meet SPC requirement is 30dB

NOISE CONTROL SIMULATIONPARK ROYAL HOTEL

BOGOR

SIMULATIONWALL MATERIAL: USG BORALBallroom To Corridor

Ballroom

Corridor

SIMULATIONWALL MATERIAL: USG BORALBallroom To Corridor

SIMULATIONWALL MATERIAL: USG BORALCorridor To Meeting Room

Meeting Room

Corridor

SIMULATIONWALL MATERIAL: USG BORALCorridor To Meeting Room

SIMULATIONWALL MATERIAL: USG BORALCorridor To Hotel Room

Meeting Room

Corridor

SIMULATIONWALL MATERIAL: USG BORALCorridor To Hotel Room

SIMULATIONWALL MATERIAL: USG BORALBill of Quantity

SIMULATIONWALL MATERIAL: USG BORALBill of Quantity

SIMULATIONWALL MATERIAL: USG BORALUSG Boral

SIMULATIONWALL MATERIAL: USG BORAL

SIMULATIONMOVABLE PARTITION

Quantum Globalindo, PT Phone : +62 21 351 3351Fax : +62 21 345 8143 Email : customer@vokuz.comWebsite : www.altaintegra.com