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So How Accurate Are These Smartphone Sound Measurement ...
https://blogs.cdc.gov/niosh-science-blog/2014/04/09/sound-apps/
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]. However, in order for smartphone apps to gain acceptance …
Sound level measuring with Android phone - ePanorama
https://www.epanorama.net/blog/2014/09/08/sound-level-measuring-with-android-phone/
Sound level measuring with Android phone Sound pressure level (SPL) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level (20 µPa, which is usually considered the threshold of human hearing at 1 kHz ).
Acoustical Measurements with Smartphones: Possibilities ...
https://acousticstoday.org/wp-content/uploads/2017/06/2-faber.pdf
acoustical measurements, such as the overall sound level. The directionality of the microphone is an important param-eter to consider when assessing the suitability of a particu-lar smartphone as a measurement device. Dedicated sound level meters (SLMs) employ measurement microphones that are designed to exhibit a directional sensitivity that is
Sound level measurements using smartphone "apps": …
https://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2014;volume=16;issue=72;spage=251;epage=256;aulast=Nast
For twoadditional apps, dB volume and advanced decibel, C-weighted level measurements were within 5 dB for most frequency by level combinations. The exceptions to this were at sound levels at and above 85 dBC at 2 kHz, where sound levels measurements were 7-8 dB lower than that measured using the calibrated Type 1 SLM.
Measure noise levels with these smartphone decibel …
https://www.healthyhearing.com/report/47805-The-best-phone-apps-to-measure-noise-levels
Google Play rating: 4 stars, $3.99 This highly-rated, free app turns your smartphone into a pre-calibrated, accurate and easily portable sound level meter. It has a standard measurement range from 30 to 130 dB. It boasts many features for measuring the intensity of sound around you built into a nicely-designed, intuitive user interface. SPL Meter
How to measure signal strength in Decibels on your cell …
https://www.signalbooster.com/blogs/news/how-to-measure-signal-strength-in-decibels-on-your-cell-phone
In brief, how to put your phone in field test mode to measure signal strength in decibels? …
Mobile Phone Testing - NTi Audio
https://www.nti-audio.com/en/applications/quality-control/mobile-phone
Mobile Phone Testing. The FLEXUS FX100 is a state-of-the-art audio test system that meets all the requirements of today's high-volume mobile phone production. The FX100 provides a detailed view of the voice quality and thus the constancy of the mobile phones manufactured. The total test time for a comprehensive test with the FLEXUS Audio ...
(PDF) Testing the accuracy of smartphones and sound …
https://www.researchgate.net/publication/289502743_Testing_the_accuracy_of_smartphones_and_sound_level_meter_applications_for_measuring_environmental_noise
Broadband white noise was utilized to test the ability of smartphones to measure noise at background, 50, 70 and 90 dB (A) and these measurements were compared with …
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