GB1398614A - Sound-recording methods and apparatus - Google Patents

Sound-recording methods and apparatus

Info

Publication number
GB1398614A
GB1398614A GB2778072A GB2778072A GB1398614A GB 1398614 A GB1398614 A GB 1398614A GB 2778072 A GB2778072 A GB 2778072A GB 2778072 A GB2778072 A GB 2778072A GB 1398614 A GB1398614 A GB 1398614A
Authority
GB
United Kingdom
Prior art keywords
sound
channel
record
recording methods
cassette
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
GB2778072A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1398614A publication Critical patent/GB1398614A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00—Teaching music
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
GB2778072A 1971-06-18 1972-06-14 Sound-recording methods and apparatus Expired GB1398614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH889771 1971-06-18

Publications (1)

Publication Number Publication Date
GB1398614A true GB1398614A (en) 1975-06-25

Family

ID=4345997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778072A Expired GB1398614A (en) 1971-06-18 1972-06-14 Sound-recording methods and apparatus

Country Status (7)

Country Link
US (1) US3843137A (pt)
CH (1) CH545519A (pt)
DE (1) DE2229069A1 (pt)
FR (1) FR2142541A5 (pt)
GB (1) GB1398614A (pt)
IT (1) IT959319B (pt)
NL (1) NL7207968A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8122892A0 (it) * 1981-07-13 1981-07-13 Rozzano Milano Metodo per l'autoregistrazione del canto su musicassetta fornita di base musicale.

Also Published As

Publication number Publication date
IT959319B (it) 1973-11-10
FR2142541A5 (pt) 1973-01-26
NL7207968A (pt) 1972-12-20
US3843137A (en) 1974-10-22
CH545519A (pt) 1974-01-31
DE2229069A1 (de) 1972-12-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee