- Modulate is to change from one pitch or tone of a voice or instrument.
When you raise the inflection of your voice at the end of a question, this is an example of when you modulate your voice.
modulate definition by Webster's New World
- to regulate, adjust, or adapt to the proper degree
- to vary the pitch, intensity, etc. of (the voice), often specif. to a lower degree
- Radio to vary the amplitude, frequency, or phase of (an oscillation, as a carrier wave) in accordance with some signal
Origin: ; from Classical Latin modulatus, past participle of modulari, to regulate, measure off, arrange ; from modulus, diminutive of modus: see mode
modulate definition by American Heritage Dictionary
verb mod·u·lat·ed, mod·u·lat·ing, mod·u·lates verb, transitive
- To adjust or adapt to a certain proportion; regulate or temper.
- To change or vary the pitch, intensity, or tone of (one's voice or a musical instrument, for example).
- Electronics a. To vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves).b. To vary (electron velocity) in an electron beam.
Origin: Latin modulārī, modulāt-, to measure off, to regulate, from modulus, diminutive of modus, measure; see med- in Indo-European roots.
- modˌu·la·bilˈi·ty noun
- modˈu·laˌtive, modˈu·la·toˌry adjective
modulate - Computer Definition
- Change or vary in some way.
- In acoustics, modulation involves varying the pitch, tone, or volume of an audio signal, such as the human voice.
- In physics, modulation involves varying the characteristics of an electromagnetic waveform, generally by varying the amplitude, frequency, or phase, or some combination.
- In telecommunications, modems perform signal modulation and demodulation processes to encode information from digital devices onto signals carried by analog circuits. Digital Service Units (DSUs) and various other devices modulate carrier waves to place digital signals on digital circuits. See also AM, FM, modem, PM, and PSK.
- In telecommunications, codecs code analog signals into digital format prior to transmission over a digital circuit, and decode them on the receiving end of the connection. Codecs use a variety of modulation techniques, including adaptive differential pulse code modulation (ADPCM), differential pulse code modulation (DPCM), and pulse code modulation (PCM). See also ADPCM, analog, codec, digital, DPCM, and PCM.
modulate - Science Definition