Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 Nov 14;11:e46846. doi: 10.2196/46846

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© Jingchen Huyan, Chandnee Ramkissoon, Mah Laka, Sharyn Gaskin. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 14.11.2023.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on https://mhealth.jmir.org/, as well as this copyright and license information must be included.

PMC Copyright notice

Figure 3. — Distribution of the differences between the measured values of the three apps and the conventional SLM in (A) low-noise (40-50 dB), (B) moderate-noise (55-70 dB), and (C) high-noise (75-85 dB) settings in the real-world study. dB(A): A-weighted dB; NIOSH: National Institute for Occupational Safety and Health; SLM: sound level meter. *Statistical difference between the app and the conventional SLM at a 95% CI.