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2. Shooting range - Wikipedia

   en.wikipedia.org/wiki/Shooting_range

   Additionally, the discharging of firearms in indoor ranges can produce noise levels of over 140 dB sound pressure level. To combat this, it is commonly recommended that those inside the range "double-up" ear protection by using both earplugs and over-the-head earmuffs, and to protect range bystanders from sound exposure. Depending on the range ...

3. Comparison of analog and digital recording - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_analog_and...

   Typically, a 16-bit analog-to-digital converter may have a dynamic range of between 90 and 95 dB, [8]: 132 whereas the signal-to-noise ratio (roughly the equivalent of dynamic range, noting the absence of quantization noise but presence of tape hiss) of a professional reel-to-reel ¼-inch tape recorder would be between 60 and 70 dB at the ...

4. Dynamic range compression - Wikipedia

   en.wikipedia.org/wiki/Dynamic_range_compression

   Dynamic range compression (DRC) or simply compression is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds, thus reducing or compressing an audio signal's dynamic range.

5. Hearing aid - Wikipedia

   en.wikipedia.org/wiki/Hearing_aid

   A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations. Small audio amplifiers such as personal sound amplification products (PSAPs) or other plain sound reinforcing systems cannot ...

6. Groceries are expensive, but they don't have to break the ...

   www.aol.com/finance/groceries-expensive-dont...

   Inflation is easing slightly, but grocery prices are still high — up 21% on average since inflation started to surge more than three years ago. “When inflation rises, it reduces people’s ...

7. Absolute threshold of hearing - Wikipedia

   en.wikipedia.org/wiki/Absolute_threshold_of_hearing

   Absolute threshold of hearing. The absolute threshold of hearing ( ATH ), also known as the absolute hearing threshold or auditory threshold, is the minimum sound level of a pure tone that an average human ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the ...