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2. High fidelity - Wikipedia

   en.wikipedia.org/wiki/High_fidelity

   High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound. [1] It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion , and a flat (neutral, uncolored) frequency response within the human hearing range .

3. Stereophonic sound - Wikipedia

   en.wikipedia.org/wiki/Stereophonic_sound

   Stereophonic sound, or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective.

4. Home audio - Wikipedia

   en.wikipedia.org/wiki/Home_audio

   The term "hi-fi," an abbreviation for high fidelity, was coined during this era to describe audio systems that aimed to reproduce sound with high accuracy and minimal distortion. The vinyl LP became popular during the 1950s, and the availability of affordable components such as turntables, speakers and amplifiers enhanced the sonic realism of ...

5. Comparison of analog and digital recording - Wikipedia

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

   The most common form of subjective test is a listening test, where the audio component is simply used in the context for which it was designed. This test is popular with hi-fi reviewers, where the component is used for a length of time by the reviewer who then will describe the performance in subjective terms.

6. High-resolution audio - Wikipedia

   en.wikipedia.org/wiki/High-resolution_audio

   High-resolution audio (high-definition audio or HD audio) is a term for audio files with greater than 44.1 kHz sample rate or higher than 16-bit audio bit depth. It commonly refers to 96 or 192 kHz sample rates. However, 44.1 kHz/24-bit, 48 kHz/24-bit and 88.2 kHz/24-bit recordings also exist that are labeled HD audio.

7. Tuner (radio) - Wikipedia

   en.wikipedia.org/wiki/Tuner_(radio)

   A tuner is also a standalone home audio product, component, or device called an AM/FM tuner or a stereo tuner that is part of a hi-fi or stereo system, or a TV tuner for television broadcasts. The verb tuning in radio contexts means adjusting the receiver to detect the desired radio signal carrier frequency that a particular radio station uses.