In this video, i have explained Optical Recording on Disc in Audio and Video Engineering, Television Engineering with following timecodes:
0:00 - Audio Video System / Television Engineering Lecture Series
0:12 - Outlines of Optical Recording on Disc
1:00 - Basics of Compact Disc
2:42 - Optical Recording on Disc
5:55 - Digitization of audio signal
8:21 - Playback Process
11:24 - Advantages of Optical recording on compact Disc
12:20 - Disadvantages of Optical recording on compact Disc
Following points are covered in this video:
0. Optical Recording
1. Optical Recording on Disc
2. Basics of Compact Disc
3. Digitization of audio signal
4. Playback Process
5. Advantages of Optical recording on compact Disc
6. Disadvantages of Optical recording on compact Disc
Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Audio and Video Engineering, Television Engineering.
#OpticalRecordingonDisc, #Digitizationofaudiosignal, #PlaybackProcess, #AdvantagesofOpticalrecordingoncompactDisc, #DisadvantagesofOpticalrecordingoncompactDisc, #AudioandVideoSystem, #TelevisonEngineering
Details of Optical Recording on Disc, Digitization of audio signal, Playback Process, Compact Disc:
Optical recording on disc is a method of storing audio and other data on a disc using a laser to read and write information. This technology is used in various formats, including Compact Disc (CD), Digital Versatile Disc (DVD), and Blu-ray Disc.
The process of digitization involves converting an analog audio signal into a digital format that can be stored on a disc. This involves sampling the audio signal at regular intervals and quantizing the amplitude of each sample to a certain number of bits. The resulting digital signal can then be compressed using various algorithms to reduce its size and increase its efficiency.
The playback process for an optical disc involves using a laser to read the digital information stored on the disc. The laser reads the disc by shining a beam of light on its surface and measuring the reflection of that light. The digital information is then sent to a digital-to-analog converter (DAC), which converts the digital signal back into an analog audio signal that can be played through a speaker or other audio device.
The Compact Disc (CD) is a popular format for optical recording and playback of audio. A standard CD has a diameter of 12 cm and can store up to 80 minutes of audio. The disc is made up of a polycarbonate substrate, a thin layer of aluminum, and a protective layer of lacquer. The digital information is stored as pits and lands on the aluminum layer, which are read by the laser during playback.
CDs use a sampling rate of 44.1 kHz and a quantization of 16 bits per sample, resulting in a bit rate of 1.4112 Mbps. This is known as the Red Book standard and is the most common format for audio CDs. CDs also support various modes of error correction and can store additional information, such as track and artist names, in a subcode.
In summary, optical recording on disc is a method of storing digital audio and other data using a laser to read and write information. The process of digitization involves converting analog audio signals into digital format, while the playback process involves using a laser to read the digital information stored on the disc and converting it back into an analog audio signal. CDs are a popular format for optical recording and playback of audio, using a sampling rate of 44.1 kHz and a quantization of 16 bits per sample.