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  2. Electret microphone - Wikipedia

    en.wikipedia.org/wiki/Electret_microphone

    [2] [3] [4] This became the most common type, used in many applications from high-quality recording and lavalier use to built-in microphones in small sound recording devices and telephones. Modern electret microphones use PTFE plastic, either in film or solute form, to form the electret.

  3. Dictation machine - Wikipedia

    en.wikipedia.org/wiki/Dictation_machine

    A dictation machine is a sound recording device most commonly used ... Most digital sound recording applications are designed for individuals or a very small number ...

  4. Microphone - Wikipedia

    en.wikipedia.org/wiki/Microphone

    The inherent suitability of this technology is due to the very small mass that must be moved by the incident sound wave compared to other microphone types that require the sound wave to do more work. Condenser microphones require a power source, provided either via microphone inputs on equipment as phantom power or from a small battery. Power ...

  5. Lavalier microphone - Wikipedia

    en.wikipedia.org/wiki/Lavalier_microphone

    A lavalier microphone or lavalier (also known as a lav, lapel mic, clip mic, body mic, collar mic, neck mic or personal mic) is a small microphone used for television, theater, and public speaking applications to allow hands-free operation. They are most commonly provided with small clips for attaching to

  6. History of sound recording - Wikipedia

    en.wikipedia.org/wiki/History_of_sound_recording

    Ring-and-spring microphones, such as this Western Electric microphone, were common during the electrical age of sound recording c. 1925–45.. The second wave of sound recording history was ushered in by the introduction of Western Electric's integrated system of electrical microphones, electronic signal amplifiers and electromechanical recorders, which was adopted by major US record labels in ...

  7. Microcassette - Wikipedia

    en.wikipedia.org/wiki/Microcassette

    For the programmable calculators of the HP-41-series (from 1979, r.), there was a magnetic tape storage device. Microcassettes have mostly been used for recording voice. In particular, they are commonly used in dictation machines and answering machines. Microcassettes have also been used in computer data storage and to record music.

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