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フルテキストURLKJ00000156271.pdf ( 628.9KB ) 公開日 2010-04-19
タイトルPCM 録音装置の試作(第 2 報) : 再生系回路と総合特性
タイトルヨミPCM ロクオン ソウチ ノ シサク ( ダイ 2 ホウ ) サイセイケイ カイロ ト ソウゴウ トクセイ
タイトル別表記Trial Construction of a PCM Recording Adapter (2nd Report) : On the Playback System and Overall Characteristics
作成者西川, 正明
永富, 和行
古前, 仁司
作成者ヨミニシカワ, マサアキ
ナガトミ, カズユキ
コマエ, ヒトシ
作成者別表記Nishikawa, Masaaki
Nagadomi, Kazuyuki
Komae, Hitoshi
作成者所属山口大学工学部
内容記述(抄録等)A PCM audio recording adapter which can be used in conjunction with the herical scanning type VTR has been constructed. This report describes the design of its playback part and the estimated overall characteristics throughout the recording and playback system. The digital code reproduced from the VTR is composed of the 12 bits PCM code and the 4 check bits for each sampled data. After serial to parallel conversion of each data and code error checking, the net 12 PCM bits are stored to the FI/FO register having a capacity of 12 bits×64 stages for each channel. The stored PCM bits are read out successively in the constant PCM sampling rate of 44.1kHz and converted to the analoge signal by a usual current ladder type D/A converter. The final playback signal is obtained pathing through the following output low path filter. The overall audio record-playback characteristics were estimated with respect to, for example, the frequency response, dynamic range, wave distortion, and impulsive noise caused by the code error. Nearly flat playback response ranging from zero to 19kHz and the dynamic range of about 70dB were obtained. The impulsive noise in the playback signal, however, was not sufficiently eliminated and the necessity of more complicated counterplan was confirmed to overcome the burst code error.
本文言語jpn
主題電気電子工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0372-7661
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the Faculty of Engineering, Yamaguchi University
30
1
開始ページ29
終了ページ35
発行日1979
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00000156271
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000156271