Signal processing of a 20-bit 8-channel digital audio recorder

Author

Iwaki, T. ; Okuda, T. ; Koyanagi, K. ; Yokomachi, Y. ; Yamawaki, C. ; Sasada, T.

Author_Institution

Sharp Corp., Tenri, Japan

Volume

36

Issue

3

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

647

Lastpage

654

Abstract

The digital multichannel recorder, a PCM (pulse code modulated) audio recording unit, is described. An 8-PCM-channel with 20-bit/sample data slot is available at the sampling frequencies of 48, 44.1, and 32 kHz. High-quality recording and editing functions are provided for semiprofessional and superior amateur use. The newly developed thin-film magnetic heads and the high-density recording technology enable more than 20 minutes´ recording on 8-mm tape loaded in a compact-size cassette. The features and signal processing technology of this digital audio recorder are described

Keywords

audio recording; audio tape recorders; computerised signal processing; magnetic heads; pulse-code modulation; 20 bit; 32 kHz; 44.1 kHz; 48 kHz; 8 mm; PCM audio recording; digital multichannel recorder; editing functions; signal processing; thin-film magnetic heads; Audio recording; Digital modulation; Digital signal processing; Frequency; Magnetic films; Magnetic recording; Modulation coding; Phase change materials; Pulse modulation; Signal sampling;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.103187

Filename

103187