DE831778C - Level meter for devices for magnetic sound recording - Google Patents

Level meter for devices for magnetic sound recording

Info

Publication number
DE831778C
DE831778C DEP12864A DEP0012864A DE831778C DE 831778 C DE831778 C DE 831778C DE P12864 A DEP12864 A DE P12864A DE P0012864 A DEP0012864 A DE P0012864A DE 831778 C DE831778 C DE 831778C
Authority
DE
Germany
Prior art keywords
sound recording
devices
magnetic sound
level meter
playback
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.)
Expired
Application number
DEP12864A
Other languages
German (de)
Inventor
Dipl-Ing Rudolf Goetze
Dipl-Ing Eduard Schueller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEP12864A priority Critical patent/DE831778C/en
Application granted granted Critical
Publication of DE831778C publication Critical patent/DE831778C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Description

1)ie Erfindung betrifft eine Anordnung zur Messung und zum Regeln der Aussteuerung bei Geräten zur magnetischen Tonaufzeichnung und -Wiedergabe. Von den bekanntem unterscheidet sie sich dadurch, daß die Aussteuerungsmessung auf der Wiedergabeseite während der Aufnahme erfolgt. Dadurch wird die wechselnde Bandempfindlichkeit in die 'Messung und in die Aufzeichnung einbezogen.1) The invention relates to an arrangement for measuring and regulating the level of devices for magnetic sound recording and playback. from It differs from the known ones in that the level measurement on the Playback side takes place during recording. This will change the tape sensitivity included in the 'measurement and in the recording.

Die Figur zeigt in zum Teil schematischer Darstellung ein Ausführungsbeispiel der erfindungsgemäßen Anordnung.The figure shows an exemplary embodiment in a partially schematic representation the arrangement according to the invention.

Das Mikrophon i ist über ein die Aussteuerung regelndes Potentiometer 2 mit dem \(ikrophonN-erstärker 3 verbunden, der über den Kontakt 4 und die Leitung 5 mit dem Aussteuerungsmesser 6 in Verbindung steht, so daß mittels des NIeßgerätes 7 die Aussteuerung abgelesen werden kann. Die Spannung des Mikrophonverstärkers wird ferner über die Leitung 8 dem Aufsprechentzerrer 9 zugeführt, der die Tonfrequenz nach der Entzerrung Tiber die Leitung io dem Sprechkopf 11 zuführt. während die in dem gleichen Gerät erzeugte Hochfrequenz über die Leitung 12 zum Löschkopf 13 geführt wird. Zur Wiedergabe wird Bier Hörkopf 14 durch den besprochenen Tonträger erregt. Die Ausgangsspannung des NN'iedergabeeritzerrers 15 wird Tiber die Leitung 17 dem Kontakt 18 zugeführt. Bei der dargestellten Stellung des Mittelkontaktes wird die Ausgangsspannung des Wiedergabeentzerrers über die Leitung 5 dem Aussteuerungsmesser 6 zugeführt und gleichzeitig über den Lautstärkeregler i9 zur Speisung des Kontrollverstärkers 2o be- nutzt, an den ein Lautsprecher lief 21 angeschlossen werden kann. Man hat es also in der l land, darch l',etätigung des Umschalters einmal in der dargestellten Stellung die Aussteuerung auf der Wiedergabeseite zu messen und andererseits durch Herstellung der Verbindung zwischen dein Mittelkontakt und dein Kontakt 4 die Aussteuerung zwischen dein Mikro- phonverstärker und (lern \ufsprechentzerrer zu messen. Der zum Gerät gehörende Lautsprecher wird arg die Ausgangsdose 16 angeschlossen. 1)as Gerät kann außer durch das Mikrophon auch unmittelbar über den Aufspreclientzerrer- besprochen werden. Zu diesem Zweck wird die Eirlgangsslrarrnring der Steckdose 22 zugeführt. The microphone i is connected via a potentiometer 2 which regulates the modulation to the microphone amplifier 3, which is connected to the modulation meter 6 via the contact 4 and the line 5, so that the modulation can be read off by means of the measuring device 7. The voltage of the microphone amplifier is also fed via the line 8 to the voice equalizer 9, which feeds the audio frequency after the equalization via the line io to the headset 11, while the high frequency generated in the same device is fed via the line 12 to the erase head 13. For playback Beer listening head 14 is excited by the audio carrier discussed. The output voltage of the NN'iedergabeeritzerrers 15 is fed via the line 17 to the contact 18. In the position of the center contact shown, the output voltage of the playback equalizer is fed to the line 5 to the level meter 6 and at the same time via the Volume control i9 to feed the control amplifier 2o uses to which a loudspeaker ran 21 connected can be. So you have it in the l country, darch l ', activity of the switch once in the illustrated Position the level control on the playback side to measure and on the other hand by producing the Connection between your mean contact and yours Contact 4 the control between your micro- phoneamplifier and (learn to speak equalizer measure up. The speaker belonging to the device is bad the output socket 16 connected. 1) the device can also be done directly through the microphone about the Aufspreclientzerrer- to be discussed. For this purpose the Eirlgangsslrarrnring is the Socket 22 supplied.

Claims (1)

PATEN TANSPPf r;1rE: i. Anordnung zur Messung und 1Zegelunz; der Aussteuerung von Geräten zur magnetischen Tonaufzeichnung und -wiedergare, dadurch ge- kennzeichnet, daß der _\ussteaerungsmesscr auf der \\"iedergabeseite derart angeschlossen ist, daß die Messung wä'irend (leg Aufnahme er- folgen kann. 2. Anordnung nach Anspruch 1. dadurch ge- kennzeichnet, daß ein Vnischalter vorgesehen ist, mit dessen Hilfe der _\ussteuc:rungsmesser wahl-,veise auch an die gegebenenfalls vorver- stärkte Eingangsspannung des Tonaufzeich- nungsgerätes angeschlossen \\ erd;n kann.
PATEN TANSPPf r; 1rE: i. Arrangement for measuring and 1 inch ounce; the Control of devices for magnetic Sound recording and playback, thereby indicates that the _ \ ussteaerungsmesscr is on the \\ "output page is connected in such a way that that the measurement takes place during can follow. 2. Arrangement according to claim 1. indicates that a Vni switch is provided is, with the help of which the control meter optionally, also to the possibly previously Stronger input voltage of the sound recording connection device connected \\ earth; n can.
DEP12864A 1948-10-02 1948-10-02 Level meter for devices for magnetic sound recording Expired DE831778C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP12864A DE831778C (en) 1948-10-02 1948-10-02 Level meter for devices for magnetic sound recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12864A DE831778C (en) 1948-10-02 1948-10-02 Level meter for devices for magnetic sound recording

Publications (1)

Publication Number Publication Date
DE831778C true DE831778C (en) 1952-02-18

Family

ID=7364309

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12864A Expired DE831778C (en) 1948-10-02 1948-10-02 Level meter for devices for magnetic sound recording

Country Status (1)

Country Link
DE (1) DE831778C (en)

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