JPS6225996U - - Google Patents
Info
- Publication number
- JPS6225996U JPS6225996U JP11568585U JP11568585U JPS6225996U JP S6225996 U JPS6225996 U JP S6225996U JP 11568585 U JP11568585 U JP 11568585U JP 11568585 U JP11568585 U JP 11568585U JP S6225996 U JPS6225996 U JP S6225996U
- Authority
- JP
- Japan
- Prior art keywords
- music signal
- utility
- predetermined level
- detection device
- constituted
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図はこの考案の音楽信号の特徴検出装置の
第１実施例を示すブロツク図、第２図は第１実施
例の具体的な回路構成例を示す回路図、第３図は
第２図に示す回路の動作波形を示す図、第４図は
第１実施例の他の具体的な回路構成例を示す回路
図、第５図は第４図に示す回路の動作波形を示す
図、第６図はこの考案の音楽信号の特徴検出装置
の第２実施例を示す回路図、第７図は第２実施例
の動作波形を示す図である。
４……検出手段としての比較器、１２……判別
手段としてのテンポ認識回路、１２０……判別手
段としての積分回路、１２４……判別手段として
の単安定マルチバイブレータ。
FIG. 1 is a block diagram showing a first embodiment of the music signal feature detection device of this invention, FIG. 2 is a circuit diagram showing a specific example of the circuit configuration of the first embodiment, and FIG. 4 is a circuit diagram showing another specific circuit configuration example of the first embodiment. FIG. 5 is a diagram showing operating waveforms of the circuit shown in FIG. FIG. 6 is a circuit diagram showing a second embodiment of the music signal feature detection device of this invention, and FIG. 7 is a diagram showing operating waveforms of the second embodiment. 4... Comparator as detection means, 12... Tempo recognition circuit as discrimination means, 120... Integrating circuit as discrimination means, 124... Monostable multivibrator as discrimination means.
Claims (1)
振幅部を検出する検出手段と、 前記検出手段の検出間隔に基づき前記音楽信号
のテンポを判別する判別手段と、 から構成したことを特徴とする音楽信号の特徴検
出装置。 (2) 前記検出手段は、前記音楽信号と前記所定
レベルとを比較して、該音楽信号の振幅が該所定
レベルを超えるごとにパルスを出力する比較器で
構成したことを特徴とする実用新案登録請求の範
囲第１項に記載の音楽信号の特徴検出装置。 (3) 前記判別手段は、前記検出手段の出力パル
スを積分し、該パルスの発生間隔に対応した信号
を出力する積分回路で構成したことを特徴とする
実用新案登録請求の範囲第２項に記載の音楽信号
の特徴検出装置。 (4) 前記判別手段は、前記検出手段の出力パル
スに応答して所定時間幅を持つた矩形波パルスを
発生する単安定マルチバイブレータで構成したこ
とを特徴とする実用新案登録請求の範囲第２項に
記載の音楽信号の特徴検出装置。 (5) 前記検出手段で設定される前記所定レベル
は、前記判別手段の出力によつて可変制御するこ
とを特徴とする実用新案登録請求の範囲第１項に
記載の音楽信号の特徴検出装置。[Claims for Utility Model Registration] (1) Detection means for detecting an amplitude portion exceeding a predetermined level of an input music signal; and determination means for determining the tempo of the music signal based on the detection interval of the detection means; A music signal feature detection device comprising: (2) The utility model characterized in that the detection means is constituted by a comparator that compares the music signal with the predetermined level and outputs a pulse every time the amplitude of the music signal exceeds the predetermined level. A music signal feature detection device according to claim 1. (3) The utility model registration claim 2, characterized in that the discriminating means is constituted by an integrating circuit that integrates the output pulses of the detecting means and outputs a signal corresponding to the generation interval of the pulses. The music signal feature detection device described above. (4) Claim 2 of the utility model registration, characterized in that the discrimination means is constituted by a monostable multivibrator that generates a rectangular wave pulse having a predetermined time width in response to the output pulse of the detection means. 2. The music signal feature detection device described in 2. (5) The music signal characteristic detecting device according to claim 1, wherein the predetermined level set by the detecting means is variably controlled by the output of the determining means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985115685U JPH0526639Y2 (en) | 1985-07-27 | 1985-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985115685U JPH0526639Y2 (en) | 1985-07-27 | 1985-07-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6225996U true JPS6225996U (en) | 1987-02-17 |
| JPH0526639Y2 JPH0526639Y2 (en) | 1993-07-06 |
Family
ID=30999570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985115685U Expired - Lifetime JPH0526639Y2 (en) | 1985-07-27 | 1985-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526639Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104890U (en) * | 1983-12-23 | 1985-07-17 | ボデイソニツク株式会社 | rhythm expression device |
-
1985
- 1985-07-27 JP JP1985115685U patent/JPH0526639Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104890U (en) * | 1983-12-23 | 1985-07-17 | ボデイソニツク株式会社 | rhythm expression device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526639Y2 (en) | 1993-07-06 |
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