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What is required to convert an analogy sound wave into digital form?
Wiki User
∙ 6y ago
What one needs is a bit of hardware circuitry called a Analogue to Digital Converter (ADC). These work by sampling the analogue electrical waveform.
Wiki User
∙ 6y ago
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What is the term used when digital values are converted to create an analog sound?
When digital values are converted to create an analog sound, the term used is Digital-to-Analog converter.
Does sound have to be converted from digital to analog for a computer?
No. Sound has to be converted from analog to digital for use by a computer, not the other way around. It is converted to analog so amplifiers and other analog equipment can use it and so you can hear it.
What is the difference between analog and digital data transmission?
This is essentially the same question as the difference between analog and digital. With analog electronics a voltage is used to represent (or to be an analogy for) some physical attribute in the real world. So for an analog transmission, at its simplest, a sound signal (say) is converted to a voltage, the voltage sent down a cable, then at the other end the voltage converted back into sound with a loudspeaker. With a digital system, the physicial attribute is measured and sent as a series of numbers, the numbers being converted to binary. For a digital transmission, the sound signal is converted to a series of numbers, sent as binary, and converted back to a sound signal at the other end. The advantages of digital is that it makes multiplexing much easier - making it easier to put many signals down the same physical cable. It also makes compressing the signal much easier - this is particularly effective for digital television transmission; 30-40 digital channels can be sent over the same bandwidth as 4 or 5 uncompressed analog channels. Also, digital is much more resiliant against noise - the digital receiver has to make a decision about each bit - is it there or not; noise can be pretty extreme before this becomes impossible, with analog, once noise is added its very difficult to remove it. The historical disadvantage of digital is that digital encoding and decoding equipment was expensive compared with the analog. Over the last 10 years or so, digital electronics has become much cheaper and more powerful.
Comparison between ADC and DAC?
An ADC, or analog to digital decoder, is used to "translate" analog signals into digital signals. An analog signal can take on any value, such as 0.1V, 0.5V, 4.12V, 5V and so on. A digital signal on the other hand can either be "high" or "low", 1 or 0. A computer can only work with digital signals, and therefore you need to convert an analog signal into a digital signal in order for the computer to be able to work with it. This is what you do when you record sounds or music. Sound is an analog signal and had to be converted with an ADC to a digital signal before it can be used in a compter or stored on a CD. A DAC, or digital to analog decoder is the oposite of the ADC. Here the digital signal is converted into an analog signal. This is what happens when you play music from a CD-plate. On a CD there are a number of holes, which each translates as a 0 or 1. These are read with a laser beam which is reflected back into a receiver whenever the laserbeam hits a hole. This then counts as a 1. When the disk is spinning it produces a stream of 1s and 0s, which togerther form a binary string, such as 00010111011101. The DAC then converts this value into a analogue signal, such as 1.1V, which is then used to power your speaker and produce audible sound.
What are the advantages of an analog signal?
Though we, as people, can interpret digital signals (if we train ourselves to do it - like Morse code), we do better with analog signals. Music and speech as well as most other sound is analog. We interpret analog audio signals almost instantly, and without even thinking about it. Without analog signals, most of our listening activities are for nothing. Let's take sound to the electronics forum. Electronically, a digital signal requires that we convert our analog signal to a digital one in an audio-to-digital converter (AtoD). And we have to convert it back at the other end. We can do all this, but it takes extra stages and effort to make it happen. Certainly it's the only way we can move all the signals we need to move, like with cell phone traffic. Without digital techniques, we'd be dead in the water trying to serve all the cellular customers we serve, but voice traffic starts and ends as analog signals 'cause we human critters can relate to them better.
What are AD and DA?
AD is Analog to Digital conversion the use is to do digital measurements of analog voltages and currents, a computer soundcard is an AD converter that convert analog sound to digital sound so that it can be played on a computer, and DA is the opposite, digital to analog conversion, the digital sound on the computer is converted to analog sound to drive a speaker or headphone
Is sound from a speaker digital or analog?
That would be analog. A speaker is not just on or off, and its range varies as the voltage changes. Sound cards use a D/A converter to convert digital data to audible sound.
Devices that convert sound energy into mechanical energy?
Sound energy is mechanical energy. No devices are required to make a conversion.
How sound energy is converted to binary form like mp3?
Sound is converted to digital through a process called quantizing. This converts sound energy into a basic musical format (such as .WAV as in the case of Windows Sound Recorder). MP3 is a form of compression that makes huge sound files much smaller with minimal loss of sound quality. A separate encoder is required to convert a basic sound file to an MP3.
What is the difference between digital sound and digitized sound?
what is the difference between digital sound and digitized sound
What is the answer to the analogy audio is to sound as video is to what?
Vision
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
Is a speaker input device?
No, it is an output device. It outputs sound waves.
What creates sound from digital instructions?
Synthesizer's create sound from digital instructions.
Who made digital sound?
The Bell telephone Company invented digital sound in 1943.
Audio versus digital sound?
I assume you mean analogue versus digital sound? In analogue sound reproduction, the sound is converted to another form - as an analogy. Waves in the air are converted into waves in vinyl or magnetic patterns on tape. In digital reproduction, the sound is first of all converted to electrical voltage waves and the voltage is rapidly measured and converted to numbers - thousands of samples are taken per second (44,100 samples per second for CD quality). If you're asking which is better, that's quite a controversial question! It's definitely true that a good digital recording is better than a bad analogue and vice versa. It has also been argued that sound recording reached a plateau of quality around 1973 - which was entirely analogue; digital sound isn't better, but it is much more convenient to work with.
What equipment is required for webcasting out of my home?
It can as simple as a web camera or a digital camera. You'll need to focus on the sound because the digital camera has poor audio capabilities. So microphones should be added to the project.
