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Listening to PLSs at safe levels, such as 60% of the volume range. Noise-cancelling headphones and sound-isolating earphones can help one avoid turning the volume up to overcome loud background noise. Sound measurement apps can help one find out how loud sounds are.
General 3.5 mm computer headsets come with two 3.5 mm connectors: one connecting to the microphone jack and one connecting to the headphone/speaker jack of the computer. 3.5 mm computer headsets connect to the computer via a sound card, which converts the digital signal of the computer to an analog signal for the headset. USB computer headsets ...
Playing video games at sound levels nearing or exceeding safe limits has been linked with hearing loss and tinnitus, according to a new study. Video gamers may be risking hearing loss or tinnitus ...
Extended periods of exposure to high sound pressure levels created by headphones at high volume settings may be damaging to hearing; [54] [55] Nearly 50% of teenagers and young adults (12 to 35 years old) in middle and high income countries listen to unsafe levels of sound on their personal audio devices and smartphones. [56]
A damping factor of 20 or greater is considered adequate for live sound reinforcement systems, as the SPL of inertia-related driver movement is 26 dB less than signal level and won't be heard. [8] Negative feedback in an amplifier lowers its effective output impedance and thus increases its damping factor.
the speech may sound "choppy" (see noise gate) and difficult to understand the sudden change in sound level can be jarring to the listener. To counteract these effects, comfort noise is added, usually on the receiving end in wireless or VoIP systems, to fill in the silent portions of transmissions with artificial noise.
[2] [14] The sound level is then measured at the position of the subject's head with the subject not in the sound field. [2] Minimal audible pressure involves presenting stimuli via headphones [2] or earphones [1] [14] and measuring sound pressure in the subject's ear canal using a very small probe microphone. [2]
There is a general danger that listening to loud music in headphones can distract the listener and lead to injury and accidents. [11] [12] Noise-cancelling headphones add extra risk. Several countries and states have made it illegal to wear headphones while driving or cycling. [13]
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