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.
You will need a digital audio switchbox or a surround sound receiver with 2 digital inputs.
Listening
An optical audio cable is used to transmit digital audio (AC-3) signal from the source to the receiver, such as from a DVD player to a digital audio amplifier/receiver. You can transmit 5.1 dolby digital or DTS surround sound with an optical audio cable, same as digital coaxial audio cable.
To use a sound card as an analog-to-digital converter (ADC), connect an analog audio source, such as a microphone or instrument, to the sound card's input jacks. Then, use audio recording software to capture the sound; the software will process the analog signal, converting it into a digital format. Ensure the sound card's settings are configured correctly for sample rate and bit depth to achieve the desired audio quality. Finally, save the recorded audio in your preferred digital format.
analog audioRefers to recording audio in a format of continuous vibrations that are analogous to the original sound waves. Before audio recording became digital, sounds were "carved" into vinyl records or written to tape as magnetic waveforms. Contrast with digital audio
Digital Audio Dg port 10
a. Digital form
A 2-channel digital audio signal, or a encoded DTS or Dolby Digital surround sound audio stream.
A sound card typically consists of several key components: the digital-to-analog converter (DAC), which converts digital audio signals into analog signals; the analog-to-digital converter (ADC), which converts analog audio signals into digital format; and various input/output ports for connecting speakers, microphones, and other audio devices. It also includes a processor for handling audio processing tasks and memory for buffering audio data. Some sound cards may feature additional components like audio amplifiers and special effects processors for enhanced sound quality.
Digital optical audio cable can carry data to decoder-enabled devices in a few formats; Dolby DTS is one of many such formats. Some of these can carry surround sound. Besides, optical is digital, and standard sound card output is analog.
Digital format in audio refers to the encoding of sound into a binary system that computers and digital devices can process. This involves converting analog sound waves into numerical values, which represent the audio signal's amplitude at discrete intervals. Common digital audio formats include MP3, WAV, and AAC, each varying in compression, quality, and use cases. Digital formats enable easier storage, transmission, and manipulation of audio content compared to analog formats.
Audio card is the physical hardware that you plug your speakers in to. Audio driver is software, that commands the hardware. You need both to hear sound.