Modulation vs. Demodulation

Modulationnoun

The process of applying a signal to a carrier, modulating.

Modulationnoun

The variation and regulation of a population, physiological response, etc.

Modulationnoun

(music) A change in key.

Modulationnoun

The act of modulating, or the state of being modulated; as, the modulation of the voice.

Modulationnoun

Sound modulated; melody.

Modulationnoun

A change of key, whether transient, or until the music becomes established in the new key; a shifting of the tonality of a piece, so that the harmonies all center upon a new keynote or tonic; the art of transition out of the original key into one nearly related, and so on, it may be, by successive changes, into a key quite remote. There are also sudden and unprepared modulations.

Modulationnoun

The alteration of hte amplitude, intensity, frequency, or phase (of the carrier wave of a radio signal) at intervals, so as to represent information to be transmitted.

Modulationnoun

a musical passage moving from one key to another

Modulationnoun

(electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase

Modulationnoun

rise and fall of the voice pitch

Modulationnoun

a manner of speaking in which the loudness or pitch or tone of the voice is modified

Modulationnoun

the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)

Modulation

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. 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.

Demodulationnoun

The inverse of the effect of modulation, or applying a signal to a carrier.

Demodulationnoun

(electronics) the reception of a signal by extracting it from the carrier wave

Demodulation

Demodulation is extracting the original information-bearing signal from a carrier wave. A demodulator is an electronic circuit (or computer program in a software-defined radio) that is used to recover the information content from the modulated carrier wave.