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2. Personal sound amplification product - Wikipedia

   en.wikipedia.org/wiki/Personal_sound...

   The amplifier (an electronic circuit) increases the amplitude of the electric signal using a power source (battery). The speaker converts the amplified electric signal back into a sound wave. The volume (gain) control is used to adjust the amount of amplification applied to the electric signal and thus, indirectly, controls the sound volume.

3. PSAPs versus Hearing Aids: What is the Difference? - AOL

   www.aol.com/psaps-versus-hearing-aids-difference...

   A hearing test is the best way to find out about your hearing and which device will be most beneficial for your needs. __wf_reserved_inherit Trying to figure out which one suits your lifestyle ...

4. Sound World Solutions - Wikipedia

   en.wikipedia.org/wiki/Sound_World_Solutions

   Sound World Solutions’ design platform relies on inexpensive off-the-shelf Bluetooth technology, yielding a hearing device that costs less than a tenth the price of a conventional hearing aid. [7] Rather than disguise its hearing device as a hearing aid, Sound World Solutions designed it to look and function as a Bluetooth device, which is ...

5. Personal sound - Wikipedia

   en.wikipedia.org/wiki/Personal_sound

   In sound technology, personal sound refers to a range of software solutions that customize an audio device's sound output to match the listener's unique hearing sensitivities. [1] The technologies aim to optimize the sound quality in the audio device to ensure they best fit the hearing perception of each unique listener.

6. Safe listening - Wikipedia

   en.wikipedia.org/wiki/Safe_listening

   The ANSI/CTA standard 2051 [49] on "Personal Sound Amplification Performance Criteria" followed in 2017. It specified a maximum output sound pressure level of 120 dB SPL. In 2019, the ITU published standard ITU-T H.871 [50] called "Safe listening guidelines for personal sound amplifiers". This standard recommends that PSAPs measure the weekly ...

7. Hearing aid - Wikipedia

   en.wikipedia.org/wiki/Hearing_aid

   Small audio amplifiers such as personal sound amplification products (PSAPs) or other plain sound reinforcing systems cannot be sold as "hearing aids". Early devices, such as ear trumpets or ear horns, [1] [2] were passive amplification cones designed to gather sound energy and direct it into the ear canal.