JPH032468U - - Google Patents
Info
- Publication number
- JPH032468U JPH032468U JP6121789U JP6121789U JPH032468U JP H032468 U JPH032468 U JP H032468U JP 6121789 U JP6121789 U JP 6121789U JP 6121789 U JP6121789 U JP 6121789U JP H032468 U JPH032468 U JP H032468U
- Authority
- JP
- Japan
- Prior art keywords
- test tone
- generating section
- generation function
- tone generation
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005236 sound signal Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の一実施例に係わるテストトー
ン発生機能付きＤＡＤプレーヤーの構成を示すブ
ロツク図、第２図は本考案の他の実施例に係わる
テストトーン発生機能付きＤＡＤプレーヤーの構
成を示すブロツク図、第３図は本考案の更に他の
実施例に係わるテストトーン発生機能付きＤＡＤ
プレーヤーの構成を示すブロツク図、第４図は本
考案の他の実施例に係わるテストトーン発生機能
付きＤＡＤプレーヤーの構成を示すブロツク図で
ある。
１１……再生回路、１２……ＲＡＭ、１３……
デイジタルフイルタ、１４……Ｄ／Ａ変換器、１
５ａ，１５ｂ……低域通過濾波器、１６ａ，１６
ｂ……増幅器、１７……システムコントローラ、
１８……入力回路、１９……デイジタルのテスト
トーン発生回路、２０，２１ａ，２１ｂ……再生
オーデイオ信号とテストトーンとを選択するスイ
ツチ、２２……アナログのテストトーン発生回路
。
FIG. 1 is a block diagram showing the configuration of a DAD player with a test tone generation function according to one embodiment of the present invention, and FIG. 2 shows the configuration of a DAD player with a test tone generation function according to another embodiment of the present invention. The block diagram in FIG. 3 is a DAD with a test tone generation function according to still another embodiment of the present invention.
FIG. 4 is a block diagram showing the structure of a DAD player with a test tone generation function according to another embodiment of the present invention. 11...Reproduction circuit, 12...RAM, 13...
Digital filter, 14...D/A converter, 1
5a, 15b...Low pass filter, 16a, 16
b...Amplifier, 17...System controller,
18...Input circuit, 19...Digital test tone generation circuit, 20, 21a, 21b...Switch for selecting reproduced audio signal and test tone, 22...Analog test tone generation circuit.
Claims (1)
所定比率のレベルのテストトーンを発生するテス
トトーン発生部と、 再生の開始に先立つて前記テストトーン発生部
を起動して再生信号の処理系内に挿入させる制御
部とを備えたことを特徴とするテストトーン発生
機能付きＤＡＤプレーヤー。[Claims for Utility Model Registration] A test tone generating section that generates a test tone at a level that is a predetermined ratio to the highest level of the audio signal to be reproduced; and a method of starting the test tone generating section prior to the start of reproduction. A DAD player with a test tone generation function, comprising a control section inserted into a signal processing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6121789U JPH032468U (en) | 1989-05-26 | 1989-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6121789U JPH032468U (en) | 1989-05-26 | 1989-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032468U true JPH032468U (en) | 1991-01-11 |
Family
ID=31589274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6121789U Pending JPH032468U (en) | 1989-05-26 | 1989-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032468U (en) |
-
1989
- 1989-05-26 JP JP6121789U patent/JPH032468U/ja active Pending
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