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  2. Tone indicator - Wikipedia

    en.wikipedia.org/wiki/Tone_indicator

    A tone indicator or tone tag is a symbol attached to a sentence or message sent in a textual form, such as over the internet, to explicitly state the intonation or intent of the message, especially when it may be otherwise ambiguous. Tone indicators start with a forward slash (/), followed by a short series of letters, usually a shortening of ...

  3. Tone number - Wikipedia

    en.wikipedia.org/wiki/Tone_number

    Tone numbers are numerical digits used like letters to mark the tones of a language. The number is usually placed after a romanized syllable. Tone numbers are defined for a particular language, so they have little meaning between languages. Other means of indicating tone in romanization include diacritics, tone letters, and orthographic changes ...

  4. Tone letter - Wikipedia

    en.wikipedia.org/wiki/Tone_letter

    The tone contours of Mandarin Chinese. In the convention for Chinese, 1 is low and 5 is high. The corresponding tone letters are ˥ , ˧˥ , ˨˩˦ , ˥˩. A series of iconic tone letters based on a musical staff was devised by Yuen Ren Chao in the 1920s [ 2 ] by adding a reference stave to the existing convention of the International Phonetic ...

  5. 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 ...

  6. Marker beacon - Wikipedia

    en.wikipedia.org/wiki/Marker_beacon

    It is typically located about 1 NM (1.85 km) inside the point where the glideslope intercepts the intermediate altitude and transmits a 400 Hz tone signal on a low-powered (3 watts), 75 MHz carrier signal. Its antenna is highly directional, and is pointed straight up. The valid signal area is a 2,400 ft (730 m) × 4,200 ft (1,280 m) ellipse (as ...

  7. Signalling System No. 7 - Wikipedia

    en.wikipedia.org/wiki/Signalling_System_No._7

    Signalling System No. 7 (SS7) is a set of telephony signaling protocols developed in the 1970s that is used to set up and tear down telephone calls on most parts of the global public switched telephone network (PSTN).

  8. Absolute pitch - Wikipedia

    en.wikipedia.org/wiki/Absolute_pitch

    Absolute pitch (AP), often called perfect pitch, is the ability to identify or re-create a given musical note without the benefit of a reference tone. [1][2] AP may be demonstrated using linguistic labelling ("naming" a note), associating mental imagery with the note, or sensorimotor responses.

  9. Tone (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Tone_(linguistics)

    Tone is the use of pitch in language to distinguish lexical or grammatical meaning—that is, to distinguish or to inflect words. [1] All oral languages use pitch to express emotional and other para-linguistic information and to convey emphasis, contrast and other such features in what is called intonation, but not all languages use tones to distinguish words or their inflections, analogously ...