Sounds

Question 1

What is the intent of the Sound Concept?

Answer 1

bolster occupant health and well-being through the identification and mitigation of acoustical comfort parameters that shape occupant experiences in the built environment

Question 2

What is sound?

Answer 2

the human response to mechanical vibrations through a medium, such as air

Question 3

Whwat are the health impacts of exterior noise?

Answer 3

sleep disturbance, hypertension and the reduction of mental arithmetic skills in school-aged children

Question 4

What are the preconditions of the concept SOUND?

Answer 4

SOUND MAPPING

Question 5

How many preconditions are there in the concept SOUND?

Answer 5

ONE

Question 6

How many optimizations are there in the concept SOUND?

Question 7

What are the optimizations of the concept SOUND?

Answer 7

S02 MAXIMUM NOISE LEVELS
S03 SOUND BARRIERS
S04 REVERBERATION TIME
S05 SOUND REDUCING SURFACES
S06 MINIMUM BACKGROUND SOUND
S07 Β IMPACT NOISE MANAGEMENT
S08 Β ENHANCED AUDIO DEVICES

Question 8

What is flanking?

Answer 8

Transmission of sound throughwalls direct and around the construction.

Question 9

Minimum STC or Rw between Loud zones and other occupiable spaces?

Answer 9

60

Question 10

Minimum STC or Rw between areas for conferencing, learning or sleeping and other regularly occupied
spaces?

Answer 10

55

Question 11

Minimum STC or Rw Between adjacent Quiet zones?

Answer 11

50

Question 12

Minimum STC or Rw Between rooms for concentration and other regularly occupied spaces?

Answer 12

45

Question 13

Minimum STC or Rw Between Circulation zones and regularly occupied spaces?

Answer 13

40

Question 14

What is the intent of Feature S04: Reverberation Time?

Answer 14

Design spaces in kaccordance with comfortable reverberation times that support speech intelligibility, vocal effort and are conducive to concentration.

Question 15

What is reverberation time?

Answer 15

It is the time it takes for a sound to decay by 60dB from an initial impulse level.

Question 16

How much ambient background noise produced by HVAC system can fluctuate?

Answer 16

15dB or more in a given year.

Question 17

Part 2 Prioritize Audio Devices and Policies

Answer 17

The project supports individual acoustical needs through at least three of the following:

a. All audio devices are managed internally by a qualified professional (e.g., IT department, mobile device management) and expectations for use are covered in the employee handbook and/or during on-boarding of new staff.
b. Eligible employees can request alternative workplace arrangements to meet their individual acoustic comfort needs (e.g., the option to work remotely, different workstation location).
c. A minimum of one daily quiet hour is scheduled and signage is used to indicate both the location and intended activities of Quiet and Mixed Zones identified in Feature S01 – Sound Mapping.
d. All eligible employees and distance learners (as applicable) are provided telecommunication accessories upon request which utilize sound enhancement technology (e.g., active digital signal processing, noise-cancellation) at no cost or subsidized by at least 50%

Question 18

Part 1 Provide Enhanced Speech Intelligibility

Answer 18

The following requirements are met, as applicable:
a. Telecommunication and AV systems, which utilize speech enhancement technology (e.g., active digital signal processing, noise cancellation) are provided in all rooms used for conferencing, distance learning or similar remote communications and commissioned by a professional in audio engineering.
b. Public address systems meet the following:
1. All public address systems are commissioned by a professional in audio engineering in accordance with
NFPA 72 (Annex D) or equivalent.
2. A commissioning report, acoustical model or similar indicates that a minimum STI 0.50 is achieved in at
least 50% of regularly occupied acoustically distinguishable spaces (ADS) when measured in accordance with IEC 60268-16 or equivalent.
c. Speech reinforcement systems are installed in at least 80% of classrooms and all spaces for large presentation spaces (e.g., lecture hall, conference center). All speech reinforcement systems are commissioned by a professional in acoustics or audio engineering and a commissioning report indicates that systems are designed to meet audio distribution requirements in accordance with ANSI/ASA S12.60 Part 1 and commissioned in accordance with ANSI/INFOCOMM A102.01:2017 or equivalent