BCA / B.Tech 8 min read

Multimedia Digital Audio Coding

Multimedia Digital Audio Coding in Hindi | Multimedia Digital Audio Coding:


  • Multimedia digital audio coding is an important part of modern technology. 
  • This technology not only makes our digital life easier, but also makes high-quality experiences possible with fewer resources.
  • As technology is advancing, new methods of digital audio coding are being developed, which will be even more efficient and useful in the future.
  • Multimedia digital audio coding refers to those techniques and processes that are used to efficiently store, transmit, and retrieve digital audio data. 
  • This technology plays an important role in multimedia applications, such as music, video streaming, gaming, and telecommunications.
Multimedia Digital Audio Coding in Hindi

Need of Multimedia Digital Audio Coding in Hindi | Need for Digital Audio Coding: 

  • Digital audio data is very large in quantity. 
  • For example, without any compression, a high-quality audio file requires a large storage space. 
  • Digital audio coding is used to compress data in such a way that its quality is not affected and it can be stored and transmitted efficiently.

Key aspects of digital audio coding:

  • Sampling: Sampling is used in digital audio coding, in which the signal is recorded at small intervals over time. This converts the continuity of the signal into digital form.
  • Quantization: The sample value of the signal is measured and stored within a certain range. This process converts the signal into a digital binary number.
  • Encoding: Quantized samples are stored in an efficient data format. This data format depends on the type of audio file (such as MP3, AAC).
Techniques of Digital Audio Coding in Hindi | Digital Audio Coding Techniques:

  • Lossless Coding: In this, the data is compressed in such a way that the original audio signal can be fully recovered upon decoding. Example: FLAC (Free Lossless Audio Codec).
  • Lossy Coding: In this technique, some unnecessary data is removed, which results in greater efficiency in storage and transmission. However, there is a slight compromise in quality. Example: MP3, AAC.
  • Perceptual Coding: This takes advantage of the limitations of the human hearing system and preserves only that data which the human ear can hear.
Importance of Digital Audio Coding in Hindi | Importance of Audio Coding in Multimedia:

  • Music and Entertainment: Digital audio coding techniques are used in music and video streaming services (like Spotify, YouTube) to efficiently store and stream audio files.
  • Gaming: Efficient coding is necessary to provide realistic and high-quality audio in games.
  • Telecommunications: Audio coding is used in voice calls and video calling services to transmit audio data in low bandwidth.
  • Film and Animation: Audio coding is used to store and reproduce soundtracks in high quality in films and animations.