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Friday, June 1, 2018

Introduction of Audio


Sound Recording and reproduction is the electrical or mechanical inscription and re-creation of sound waves, usually used for the voice or for music.

The invention of digital sound recording and the compact disc in 1983 brought significant improvements in the durobility of consumer recordings. The CD initiated another massive wave of change in the consumer music industry, with vinyl records effectively relegated to a small niche market by the mid-1990.

The most recent and revolutionary developments have been in digital recordings, with the invention of purely electronic consumer recording formats such as the WAV digital music file and the compressed file type, the MP3. This generated a new type of portable solid-state computerised digital audio player, the MP3 Player.

Another invention, by sony, was the minidisc player, using ATRAC compression on small, cheap, re-writeable discs.

This was in vogue in the 1990s, and is still popular, especially in a newer, longer playing and higher  fidelity version. New Technologies such as Super Audio CD, DVD-A, Blu ray Disc and HD DVD continue to set very high standard in evolution of digital audio storage.

This technology spreads across various associated fields, from hi-fi to professional audio, internet radio and podcasting.

Technological developments in recordings and editing have transformed the record, movie and television industries in recent decades. Audio Editing become practicable with the invention of magnetic tape recordings, but the use of computers has  made editing operations faster and easier to execute, and the use of hard-drives for storage has made recordings cheaper. We now divide the process of making a recording into tracking, mixing and mastering.

Multitrack recording makes it possible to capture sound and several microphones, or from different  'takes' to tape or disc with maximum headroom and quality, allowing maximum flexibility in the mixing and mastering stages for editing , level balancing, compressing and limiting, and the  addition of effects such as  reverberation, equalization, flanging and many more.

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