Is There a "Standard" for CD Antialias Filtering? - Page 3 - diyAudio
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Old 6th April 2012, 05:01 PM   #21
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Join Date: Jan 2008
Location: Virginia
First digital recodings where done in 70's by PCM modulation and recorded on video magnetic gear (U-Matic). Since the machines where NTSC standard, audio datarate needed to comply with that and resulted number was 48kHz.
Alesis made in 1991 the first multitrack recorder, the 8-track ADAT on a S-VHS tape. Original was 16 bit (upgraded to 20 bit latter) and 48kHz resulted from NTSC framerate - dual speed added later for 44.1kHz.

Last edited by SoNic_real_one; 6th April 2012 at 05:05 PM.
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