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Primarily because digital systems are more accurate. Additionally, digital technology is replacing older systems with modern devices because digital devices are often much smaller, and require less maintenance.

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12y ago
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11y ago

On crossing a boundary in the system from where analog signals exist to where digital signals exist.

If no digital signals exist in the system then no such boundary exists and no conversion is needed.

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Q: Why must sound card and video on a PC be converted from analog to digital?
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How do you amplify video signal?

Voice being analog signal will be converted by an ADC whereby the output is a logic representation of the analog input


Difference between analog video and digital video?

analog video is generally a type of video form in which we have numerous waves in terms of crests and troughs in a continuous manner upside-down on X axis whereas, in digital video we have many bars that are upawrds and then downwards on X axis in a continuous manner that also includes two types of binary bits, either 0 or 1.


What is a DV bridge?

A DV bridge is a type of converter box for video. It is a box-shaped electrical component that is used for converting analog video to Digital Video.


Difference between analog modulation and digital modulation?

Analog Pulse modulation is discreet in time but the formation is transmitted in continuous form. In digital pulse modulation, not only the time axis is discreet but the information is also in digital form. Examples of Analog PM are PAM and PTM i.e pulse amplitude and pulse time modulations respectively. Examples of Digital PM are PCM and PDM i.e pulse code and pulse delta modulations respectively.


Which device is used to convert analog signals to digital signals?

In datacommunications this is a modulator/demodulator, commonly known as a modem. In electronics a digital to analog converter (DAC) chip is used to convert digital signals to analog and an analog to digital converter (ADC) chip to convert analog signals to digital. Some chips are available which include both ADC and DAC functionality. There are thousands of different types of DAC and ADC sytems and which one to use largely depends on how fast you want to do the conversion.

Related questions

7 Why must sound and video input into a PC be converted from analog to digital?

A computer only reads information in digital coding (binary) a truly analog signal would not register in a computer.


How may analog media be converted to a digital format?

digital imaging (using digital cameras and scanners), sound cards, and analog video-capturing devices sample, compress, and convert analog media into a series of 0s and 1s (digital) signals for processing by a computer


Does a video use an analog or digital signal?

A video uses the analog signal


How do you amplify video signal?

Voice being analog signal will be converted by an ADC whereby the output is a logic representation of the analog input


Why must sound and video input to a PC be converted from analog to digital?

Because in order to preserve the original sound, a digital sampling rate must be twice the frequency of the analog signalAnalog data is smooth and continuous, where as digital data, such as the binary data used in computers, has distinct gradations. The process of producing digital data by measuring data at a series of representative points is called sampling.


Do web cameras produce analog video or digital video?

A web camera or "webcam" by definition produces digital video. An analog video camera would require some kind of analog to digital conversion in order to be used for the types of applications that webcams are used for.


Why does a digital tuner for HDTV have a analog to digital converter?

The digital tuner also demodulates the normal analog broadcasting. The tuner outputs a analog composite video signal to Video Processing Chip. In that chip, there is a ADC to convert the analog to digital, then after procession, display the content on the screen


Does S-Video carry sound and pictures?

No, S-video carries only a video signal. You will require an additional connection to transport audio, either analog or digital.


Analog to digital video converters are used to transfer video from what medium to a digital file?

Analog to digital converters are used to transfer video from a medium to a digital file, for example Camcorders or Cameras with video. One example would be the Canopus ADVC- 100 Advanced Digital video converter.


What camera records video as digital signals instead of analog signals?

digital video camera


How can I view an analog video on a digital camcorder?

Analog and digital video record their data completely different, so they are not compatible with each other. Analog video actually saves pictures on the tape. Digital video converts the pictures to 1s and 0s, savinf that data. Digital camcorders record and play the 'computerized' 1s and 0s, converting it into the original pictures, and so they cannot read an analog tape.


Are DVDs digital or analog?

The acronym DVD stands for Digital Video Disc.