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Phonautograph
First device that could record actual sounds as they passed through the air. -
Gramophone
A device used for the mechanical recording and reproduction of sound. -
The microphone
The most important event in the history of sound recording. Used to convert the sound into an electrical signal that was later amplified to be heard. -
Magnetic tape
Devices that record and play back audio and video using magnetic tape are tape recorders and video tape recorders respectively. A device that stores computer data on magnetic tape is known as a tape drive. -
Digital recording
In digital recording, audio signals picked up by a microphone or other transducer or video signals picked up by a camera or similar device are converted into a stream of discrete numbers, representing the changes over time in air pressure for audio -
C-D Compact Disc
Is a digital optical disc data storage. The format was originally developed to store and play only sound recordings but was later adapted for storage of data. Several other formats were further derived from these, including write-once audio and data storage. -
MP3
MP3 is a coding format for digital audio. Originally defined as the third audio format of the MPEG-1 standard, it was retained and further extended. The MP3 format soon became associated with controversies surrounding copyright infringement and music piracy.
