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  2. Speakerphone - Wikipedia

    en.wikipedia.org/wiki/Speakerphone

    A speakerphone is a telephone with a microphone and loudspeaker provided separately from those in the handset. [1] This device allows multiple persons to participate in a conversation. The loudspeaker broadcasts the voice or voices of those on the other end of the telephone line, while the microphone captures all voices of those using the ...

  3. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    For popular music concerts, a more powerful and more complicated PA System is used to provide live sound reproduction. In a concert setting, there are typically two complete PA systems: the "main" system and the "monitor" system. Each system consists of a mixing board, sound processing equipment, amplifiers, and speakers.

  4. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...

  5. Phone etiquette 101: When it’s rude to be on speaker — and ...

    www.aol.com/news/phone-etiquette-101-rude...

    Don’t use speakerphone. Do not use speakerphone for calls you make in public — use headphones. This is especially true for video calls or when watching to something on your device.

  6. Loudspeaker - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker

    The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.

  7. Echo suppression and cancellation - Wikipedia

    en.wikipedia.org/wiki/Echo_suppression_and...

    A standard telephone or cellphone in speakerphone mode; Dedicated standalone speakerphones; Installed conference room systems which use ceiling speakers and microphones on the table; Physical coupling where vibrations of the loudspeaker transfer to the microphone via the handset casing

  8. The best flip phones for seniors in 2025 - AOL

    www.aol.com/lifestyle/best-flip-phones-184204157...

    The phone also has a "SPKR" button (for engaging speakerphone mode) and an easily identified clear/back button. Below the keypad there's a Favorites button represented by a person/heart icon ...

  9. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!