Is the frequency domain plot of an alarm system discrete or continuous We send a voice signal from a microphone to a recorder is this baseband or broadband transmission?

Its frequency domain plot is therefore discrete. We send a voice signal from a microphone to a recorder.

Is voice signal continuous?

A continuous signal, such as voice, has a continuous range of amplitudes, and therefore its samples have a continuous amplitude range. In other words, within the finite amplitude range of the signal we find an infinite number of amplitude levels.

What is a frequency domain plot?

Put simply, a time-domain graph shows how a signal changes over time, whereas a frequency-domain graph shows how much of the signal lies within each given frequency band over a range of frequencies. The “spectrum” of frequency components is the frequency-domain representation of the signal.

Is the voice signal send from a microphone to a recorder baseband or broadband?

pdf. When we send a voice signal from a microphone to a recorder, here no modulation is involved. That means this is a baseband transmission.

Can we say whether a signal is periodic or nonperiodic?

The given signal may be periodic if its frequency spectrum having the fundamental time period repeats at regular intervals of time. The given signal is non periodic when the signal’s frequency is random and it is not defined as in sine wave or cosine wave.

Which signal is continuous?

The electrical signals derived in proportion with the physical quantities such as temperature, pressure, sound etc. are generally continuous signals. Other examples of continuous signals are sine wave, cosine wave, triangular wave etc.

What is the range of voice frequency?

In telephony, the usable voice frequency band ranges from approximately 300 to 3400 Hz. It is for this reason that the ultra low frequency band of the electromagnetic spectrum between 300 and 3000 Hz is also referred to as voice frequency, being the electromagnetic energy that represents acoustic energy at baseband.

What is frequency domain of a signal?

The Frequency Domain refers to the analytic space in which mathematical functions or signals are conveyed in terms of frequency, rather than time. For example, where a time-domain graph may display changes over time, a frequency-domain graph displays how much of the signal is present among each given frequency band.

Which type of signal gives combination of sine wave with continuous frequencies after decomposition?

periodic composite signal
A periodic composite signal can be decomposed into a series of signals with discrete frequencies. A non-periodic signal when decomposed gives a combination of sine waves with continuous frequencies.

How can we say that a signal is periodic or non periodic if its frequency domain plot is given?

How do you know if a continuous signal is periodic?

In mathematical terms a signal x(t) is periodic if there is a number T such that for all t Equation 10.10 holds. The smallest positive number T that satisfies Equation 10.10 is the period and it defines the duration of one complete cycle.