- System Overview
- Performances and Characteristics
- Sound masking generating system
- Adaptive volume control adjustment in open areas
- Paging and Music Broadcast Systems (Option)
- Target sound masking spectrum
- Validation method
- Standards test methods
- Certifications – ETL Listed 3191772
At NoiseCon 2017 in Grand Rapids, MI, Soft dB presented a scientific paper entitled Adaptive Volume Control for Sound Masking, written by Dr. Andre L’Esperance, et al. The paper demonstrates how the Adaptive Volume Control (AVC) feature, which allows the masking sound level to reactively vary between 42 and 45 dBA depending on ambient background noise, obtains similar levels of confidentiality and speech privacy compared to a sound masking system equipped only with a 45 dBA timer function.
However, the real difference between the AVC feature and the timer function for masking systems is seen in occupant acoustic comfort; an AVC sound masking system provides an unparallelled 50% improvement in occupant acoustic comfort during periods of moderate office activity, when compared to a timer function. Furthermore, if the upper limit of the AVC sound masking system is set to 48 dBA (CNRC-recommended upper limit) instead of 45 dBA, the level of acoustic comfort is maintained, but the confidentiality and speech privacy are improved by 15%.
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Third Party References
“The capital and operating costs for buildings account for 8%, while the human resources costs (salaries and benefits) represent 82%. In relative terms, office design choices are inexpensive and the costs of sound investments in design can be recouped quickly in the form of enhanced occupant satisfaction and performance.”
“When asked about their offices, 88% of respondents noted the quality of their work environment was important to job satisfaction and 84% reported that they accomplished their best work at the office. In fact, when asked if they would be willing to work an extra hour per day if they had a better working environment, 49% of respondents said yes. “
Stop Noise from Ruining Your Open Office
“By adding a continuous, low-level ambient sound to an environment (such as white noise, which sounds similar to the sound of airflow), sound masking can help make conversations for listeners that aren’t intended to hear them unintelligible, and therefore much easier to ignore.”
“Masking sound is an effective way to lower SII and create good acoustical conditions. Laboratory simulations have found that masking sound improves complex cognitive tasks and reduces perceived stress.”
“Electronic masking-sound systems can be designed to provide close-to-ideal noise levels to mask speech sounds and enhance privacy, without being disturbing.”
“The office is more than just a cost center. It can be an investment with clear benefits and a measurable return and is yet another productivity tool to be used intelligently.”
“Carefully designing your workplace to support what your people and teams do is an investment that pays off in both business terms and in positive changes in corporate culture.”