DE19707403A1 - Speed regulation control unit for audio reproduction apparatus - Google Patents
Speed regulation control unit for audio reproduction apparatusInfo
- Publication number
- DE19707403A1 DE19707403A1 DE1997107403 DE19707403A DE19707403A1 DE 19707403 A1 DE19707403 A1 DE 19707403A1 DE 1997107403 DE1997107403 DE 1997107403 DE 19707403 A DE19707403 A DE 19707403A DE 19707403 A1 DE19707403 A1 DE 19707403A1
- Authority
- DE
- Germany
- Prior art keywords
- control unit
- reproduction apparatus
- audio
- audio reproduction
- speed regulation
- 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.)
- Withdrawn
Links
- 230000033764 rhythmic process Effects 0.000 description 2
- 241001050985 Disco Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
Description
Das Gerät ist im Bereich der Musikwiedergabe einsetzbar, insbesondere im Unterhaltungssektor. Hierbei ist die Verwendung des Geräts sowohl bei professionellen Veranstaltungen oder Discotheken möglich, wie auch bei der Anwendung im Hobbybereich.The device can be used in the field of music reproduction, in particular in the entertainment sector. This is the use of the device both at professional events or discos possible, as well as for use in the hobby area.
Der jetzige Stand der Technik beschränkt sich darauf, daß die Abspielgeschwindigkeit bei Audio-Wiedergabegeräten (z. B. CD-Player, Schallplattenspieler) von Hand vorgenommen wird. Dabei wird durch Verschieben eines Schiebereglers das Tempo des abgespielten Musikstückes gesteigert bzw. verlangsamt. Der Zweck solch einer Tempovariation besteht darin, daß zwei verschiedene Musikstücke tempogleich aufeinanderfolgend und ohne Pause aneinandergereiht werden können, ohne daß sich Rhythmusverschiebungen ergeben müssen. Diese Art der Musikwiedergabe gewinnt zunehmend an Bedeutung, da das Tanzpublikum mit dem Aufkommen neuer Musikstile (siehe Hitparade) auch andere Ansprüche wie den des "nonstop-mixing" stellt.The current state of the art is limited to the fact that the playback speed at Audio playback devices (e.g. CD players, record players) is made by hand. Doing so by moving a slider increases the tempo of the played piece of music or slowed down. The purpose of such a tempo variation is that two different ones Pieces of music can be lined up sequentially and without a pause, without having to change the rhythm. This type of music playback wins is becoming increasingly important as dance audiences emerge with the emergence of new musical styles (see Hitparade) also makes other demands such as "non-stop mixing".
Die Aufgabe der Regelung der Abspielgeschwindigkeit wird bisher von einer Person ("Discjockey", "DJ") erledigt. Die Genauigkeit des Überblendens von einem Stück zum anderen hängt allein von der musikalischen und technischen Fähigkeit dieser Person ab. Es ist also keine Seltenheit, daß einige Übergänge von einem Lied zum anderen entweder wegen falschem Tempo, nicht korrektem Rhythmus oder Zeitmangel hörbar verpatzt wurden.So far, the task of regulating the playback speed has been performed by one person ("disc jockey", "DJ") done. The accuracy of crossfading from one piece to another depends solely on the musical and technical ability of this person. So it is not uncommon for some Transitions from one song to another either due to wrong tempo, incorrect Rhythm or lack of time were audibly messed up.
Das erfundene Gerät soll nun diese Mängel ausgrenzen, wie im folgenden beschrieben:
Zuerst mißt das Gerät die erforderlichen Daten für das Tempo der Musikstücke ein, indem ein
Softwaresystem die Stücke hinsichtlich Auftreten von Baßtrommeln analysiert (Fig. 1 (1)). Durch
zeitliches Registrieren der aufeinanderfolgenden Baßtrommelschläge wird ein Delta-Wert ermittelt,
mittels dem dann die Geschwindigkeit in "Bpm" (= Beats per minute Schläge pro Minute)
ausgerechnet wird. Wird ein Tempounterschied der beiden Stücke festgestellt, wird danach mittels
Kopplung des Geräts mit den Wiedergabegeräten (Fig. 1 (2)) die Regelung einer Audioquelle
vorgenommen, so daß die Stücke gleiches Tempo haben (s. o.).The invented device is now intended to limit these deficiencies, as described below:
First, the device measures the required data for the tempo of the pieces of music by a software system analyzing the pieces for the occurrence of bass drums ( Fig. 1 ( 1 )). A delta value is determined by chronological registration of the successive bass drum beats, by means of which the speed is then calculated in “bpm” (= beats per minute beats per minute). If a difference in tempo is found between the two pieces, the audio source is then controlled by coupling the device to the playback devices ( FIG. 1 ( 2 )) so that the pieces have the same tempo (see above).
Das Zentrum der Erfindung bildet ein Microcontroller, der die erforderlichen Steuervorgänge und arithmetisch Operationen vornimmt. Ergänzt wird dieses System (Fig. 2) mit einer Audiofilterschaltung, die für die Musikanalyse notwendig ist. Ein elektronisches Potentiometer simuliert den in den Wiedergabegeräten eingebauten Schieberegler für die Abspielgeschwindigkeit, so daß diese Regelung von der Steuerung übernommen werden kann. Das im Eprom gespeicherte Programm sorgt nun für den Ablauf der Messungen und der Steuerung im allgemeinen.The center of the invention is a microcontroller that performs the necessary control and arithmetic operations. This system ( FIG. 2) is supplemented with an audio filter circuit, which is necessary for music analysis. An electronic potentiometer simulates the built-in slider for the playback speed so that this control can be taken over by the control. The program stored in the Eprom now takes care of the measurement and control in general.
Mit der Verwendung dieser technischen Mittel ist eine Automation im Discothekenbereich möglich, die den "Discjockey" sowohl in zeitlicher wie auch in qualitativer Hinsicht unterstützt (nicht ersetzt!), und Einsteigern in diesen Bereich den Weg dahin erleichtert.With the use of these technical means, automation in the discotheque area is possible, that supports "disc jockey" in terms of both time and quality (not replaced!), and makes it easier for beginners in this area.
Quellenverzeichnis:
List of sources:
- - Dietsche/Ohsmann, Microcontroller Handbuch, Elektor, 2.Auflage, Aachen 1993.- Dietsche / Ohsmann, microcontroller manual, elector, 2nd edition, Aachen 1993.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997107403 DE19707403A1 (en) | 1997-02-25 | 1997-02-25 | Speed regulation control unit for audio reproduction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997107403 DE19707403A1 (en) | 1997-02-25 | 1997-02-25 | Speed regulation control unit for audio reproduction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19707403A1 true DE19707403A1 (en) | 1998-09-03 |
Family
ID=7821346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1997107403 Withdrawn DE19707403A1 (en) | 1997-02-25 | 1997-02-25 | Speed regulation control unit for audio reproduction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19707403A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0999553A1 (en) * | 1998-11-02 | 2000-05-10 | Alessandro Cortellesi | Portable apparatus for storing, handling and listening to pieces of music |
| GB2378805A (en) * | 2001-08-15 | 2003-02-19 | Hanpin Electron Co Ltd | Digital and analog audio signal apparatus |
| EP1073055A3 (en) * | 1999-07-26 | 2004-01-28 | Pioneer Corporation | Apparatus and method for reproducing audio information |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2198574A (en) * | 1986-12-04 | 1988-06-15 | Michael James Denner | Audio deck controller |
-
1997
- 1997-02-25 DE DE1997107403 patent/DE19707403A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2198574A (en) * | 1986-12-04 | 1988-06-15 | Michael James Denner | Audio deck controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0999553A1 (en) * | 1998-11-02 | 2000-05-10 | Alessandro Cortellesi | Portable apparatus for storing, handling and listening to pieces of music |
| EP1073055A3 (en) * | 1999-07-26 | 2004-01-28 | Pioneer Corporation | Apparatus and method for reproducing audio information |
| GB2378805A (en) * | 2001-08-15 | 2003-02-19 | Hanpin Electron Co Ltd | Digital and analog audio signal apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |