Decibel displays the current, minimum, and maximum values of sounds around you, in decibels, and then turns this information into user-friendly sound level charts and graphs. Also, with the help of Info menu, you can view what different noise dB levels denote, such as: 10 db is wrist watch ticking sound, 20 dB is whisper sound, 60 db is regular conversation sound, etc. A chart displays the noise level over a given period of time. Decibel Meter application uses the built-in microphone to determine the level of sound it detects, and displays this in decibels (dB) as max, average and peak sound pressure level. Green bars confirm that the present level is well below limits. Commonly referred to as a sound meter, noise meter, decibel meter, or sound pressure level meter, a sound level meter is designed to respond to sound in approximately the same way as the human ear. The overall sound pressure level associated with all of these sound sources combined is shown as curve D. Figure 3 (Schaffer 2005) shows the frequency ranges and descriptive terminology of the most likely sources of HVAC sound-related complaints. Poster presented at the 43rd Annual Symposium of The Voice Foundation, Philadelphia, PA. Google Scholar. Audio Meter is a Tool for audio level measuring in dB or dB(A) with a wide range of advanced features build in. The “Sound Level Predictor” visualizes the level history of the current measurement interval and indicates the headroom for the actual measurement period or the next few minutes. The use of sound pressure level (SPL) meter apps in the clinical setting. Sound Pressure Level (dB) - Octave band mid-frequency (Hz) 63 Hz (upper limit 83 dB) ... - free apps for offline use on mobile devices. The chart below shows the sound pressure level decibel scale compared to the sound pressure Pascal scale. Its a very simple app to measure noise, which displays noise intensity in dB. Figure 4 (Schaffer 2005) shows the frequencies at which different types of Fox, C. M., & Ramig, L. O. This sound level meter application for the Android market is a simple tool that uses the smart phone’s microphone to measure Sound Pressure Level (SPL). iTunes rating: 4.5 stars Free. Audio Meter is freeware (no commercials, no in app purchases, FREE!) Developed by the National Institute for Occupational Safety and Health (NIOSH), this app is exclusive to iPhone and is a useful tool for anyone working in noisy environments. Vocal sound pressure level and self-perception of speech and voice in men and women with idiopathic Parkinson disease. Sound Level Meter Apps (14) BZ-7234. The NIOSH Sound Level Meter App is a tool to measure sound levels in the workplace and provide noise exposure parameters to help reduce occupational noise-induced hearing loss. Apps for iOS only NIOSH Sound Level Meter. (1997). The use of smartphone sound measurement apps can have a tremendous and far-reaching impact in the areas of noise research and noise control in the workplace as every smartphone can be potentially turned into a dosimeter or a sound level meter [Maisonneuve et al., 2010; Williams and Sukara, 2013]. L p = sound pressure level (dB) p = sound pressure (Pa) p ref = 2 10-5 - reference sound pressure (Pa) Doubling sound pressure (in Pa) - increases sound pressure level (in dB) with 6 dB (or 20 log (2)). The Sound Level Predictor View.
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