Whats the definition of modulate?

Asked by: Alessandro Hauck
Score: 5/5 (69 votes)

transitive verb. 1 : to tune to a key or pitch. 2 : to adjust to or keep in proper measure or proportion : temper. 3 : to vary the amplitude, frequency, or phase of (a carrier wave or a light wave) for the transmission of information (as by radio) also : to vary the velocity of electrons in an electron beam.

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Also question is, What does it mean to modulate your attention?

[ I or T ] to change the style, loudness, etc. of something such as your voice in order to achieve an effect or express an emotion: His gentle introductory tone modulates into a coach's pre-game pep talk.

Accordingly, What does it mean to modulate data?. Modulation is the process of converting data into radio waves by adding information to an electronic or optical carrier signal. A carrier signal is one with a steady waveform -- constant height, or amplitude, and frequency.

Then, How do you use modulate in a sentence?

Modulate in a Sentence ?
  1. Several chemicals coming from the brain modulate appetite, controlling when the body feels hungry.
  2. The AC unit dial failed to modulate the air conditioning system and left our house a sweltering inferno.
  3. When playing the instrument, the musician used his mouth to modulate and temper the tone.

What is example of modulation?

For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal.

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What is modulation in simple words?

Modulation is the addition of information to an electronic or optical carrier signal. In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, the carrier signal, with a modulating signal that typically contains information that is to be transmitted.

What are the three types of modulation?

There are three types of Modulation:
  • Amplitude Modulation.
  • Frequency Modulation.
  • Phase Modulation.

What does it mean to modulate in music?

Modulation, in music, the change from one key to another; also, the process by which this change is brought about. Modulation is a fundamental resource for variety in tonal music, particularly in larger forms. A short piece such as a song, hymn, or dance may remain in a single key.

What does modulate mean in medicine?

1. To regulate or adjust to a certain degree: physiological mechanisms that modulate the body's metabolic rate. 2. Biochemistry To act on (a receptor, for example) as an activator, an inhibitor, or both.

What are the reasons for modulation?

Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.

What are the benefits of modulation?

Advantages of Modulation
  • Antenna size gets reduced.
  • No signal mixing occurs.
  • Communication range increases.
  • Multiplexing of signals occur.
  • Adjustments in the bandwidth is allowed.
  • Reception quality improves.

What is modulation and why it is needed?

Modulation is simply a widely used process in communication systems in which a very high-frequency carrier wave is used to transmit the low-frequency message signal so that the transmitted signal continues to have all the information contained in the original message signal.

What is the meaning of convexity?

Convexity is a measure of the curvature in the relationship between bond prices and bond yields. Convexity demonstrates how the duration of a bond changes as the interest rate changes. If a bond's duration increases as yields increase, the bond is said to have negative convexity.

What is emotional modulation?

Response modulation refers to efforts to modify an emotion after it has been fully generated. The most frequent form of this ER strategy is suppression, or volitional inhibition of verbal and behavioral expressions of emotions.

What do you think is the importance of using proper modulation when talking?

One of the most important tools you need for speaking is voice modulation. ... When we speak, we are able to change the message by varying the : tone, stress on words, pitch, and changing the rate of speech. Effective voice modulation can mean the difference between a boring speech, and an audience captivating speech.

How do you identify modulation?

22.5 How to Recognize a Key After a Modulation
  1. Look for recurring accidentals, then add them to the key signature to determine the new key. Lowered notes (like flats) usually create (as do the flats in key signatures) ...
  2. If accidentals are canceled out, they indicate tonicizations or chromatic non-chord tones.

Why is the V chord called dominant?

The 5th chord found in a scale is known as the dominant, because it is the "most important" interval (among other things, it's the first harmonic other than the octave). The dominant is also spelled in roman numeral, like this: V. A dominant seventh chord is a chord built upon the dominant of a major diatonic scale.

What is the difference between a key change and a modulation?

Modulation refers specifically to how you change keys. Whether you just jump straight into the new key, or have a pivot chord, etc. Key change just means that you changed keys.

What enunciation means?

transitive verb. 1a : to make a definite or systematic statement of. b : announce, proclaim enunciated the new policy. 2 : articulate, pronounce enunciate all the syllables.

What is modulation and its type?

Modulation is the process of converting data into electrical signals optimized for transmission. Modulation techniques are roughly divided into four types: Analog modulation, Digital modulation, Pulse modulation , and Spread spectrum method. ... Digital modulation involves transmission of binary signals (0 and 1).

What is the minimum AM signal needed to transmit information?

What is the minimum AM signal needed to transmit information? Solution: 875.

What are the two main types of modulation techniques?

These modulation techniques are classified into two major types: analog and digital or pulse modulation.

What is difference between AM and FM?

The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes direction) of the carrier signal is varied.

How is modulation done?

First, a user can tweak the height of the carrier. If an input signal's height varies with the loudness of a user's voice and then adds this to the carrier, then the carrier's amplitude will change corresponding to the input signal that's been fed into it. This is called amplitude modulation or AM.