Digital and quantized signal, are one same thing?

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SUMMARY

Digital signals and quantized signals are closely related, with digital audio being a prime example of a quantized signal. However, class D amplifiers, which quantize in the time dimension, are not classified as digital. Digital signals can be fully understood as complete quantization, but this does not apply universally across all applications. Various modulation techniques, such as 8VSB for digital television in the USA and DVB for Europe, illustrate the diversity in digital signal applications.

PREREQUISITES
  • Understanding of digital audio concepts
  • Familiarity with class D amplifier technology
  • Knowledge of digital signal modulation techniques
  • Awareness of digital television standards like 8VSB and DVB
NEXT STEPS
  • Research the principles of digital audio quantization
  • Explore the functionality and applications of class D amplifiers
  • Study various digital signal modulation techniques, including QAM and 8VSB
  • Investigate the differences between digital and analog signals in telecommunications
USEFUL FOR

Electrical engineers, audio engineers, telecommunications professionals, and anyone interested in the distinctions between digital and quantized signals.

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digital and quantized signal, are one same thing?
 
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Generally, yes, but it depends. Digital audio is a quantized signal, but class D amplifiers (which quantize in the time dimension) are not considered digital. I guess you could think of digital as complete quantization.
 
greeniguana00 said:
Generally, yes, but it depends. Digital audio is a quantized signal, but class D amplifiers (which quantize in the time dimension) are not considered digital. I guess you could think of digital as complete quantization.

How the calculator decodes the digital signal?
 
Calculator? :confused:

Do you have some particular kind of digital signal in mind? Audio, video, or what?

Electrical engineering and electronics isn't my field, but I do know that there are a variety of ways of modulating digital data onto an analog carrier signal, and which ones are used depends on the application. For digital television, for example, there are 8VSB (ATSC) (used for broadcast TV in the USA and some other places), QAM (used for cable TV in the USA), DVB (used for broadcast TV in Europe), etc.
 
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