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.
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.
Voice being analog signal will be converted by an ADC whereby the output is a logic representation of the analog input
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.
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.
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.
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.
A computer only reads information in digital coding (binary) a truly analog signal would not register in a computer.
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
A video uses the analog signal
Voice being analog signal will be converted by an ADC whereby the output is a logic representation of the analog input
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.
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.
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
No, S-video carries only a video signal. You will require an additional connection to transport audio, either analog or digital.
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.
digital video camera
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.
The acronym DVD stands for Digital Video Disc.