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First Digital Audio Tape

Digital Audio Tape (DAT or R-DAT) is a signal recording and playback medium developed by Sony and introduced in 1987. Digital Audio Tape (DAT) employs […]

First commercial VoIP Service

  The mid-1990s marked the beginning of commercial VoIP with the release of VocalTec’s Internet Phone, which allowed for computer-to-computer calls. This was

The first MP3 player

MP3, or MPEG-1/2 Audio Layer III, is a lossy audio compression format designed to reduce the data required for digital

Waveform Audio File Format

The WAV file is an instance of a Resource Interchange File Format (RIFF) defined by IBM and Microsoft.[3] The RIFF format acts as a wrapper for various audio coding

First CMOS PCM

The first single-chip CMOS PCM codec with integrated filters was developed by David A. Hodges and W.C. Black in 1980. This silicon-gate

First PCM Recorder

NHK developed the first mono PCM recorder with 30kHz/12bit converter and video tape recording at its research centre in 1967.

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