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SE424117B - Magnetic tape apparatus with level and frequency dependent noise suppression - Google Patents

Magnetic tape apparatus with level and frequency dependent noise suppression

Info

Publication number
SE424117B
SE424117B SE7713546A SE7713546A SE424117B SE 424117 B SE424117 B SE 424117B SE 7713546 A SE7713546 A SE 7713546A SE 7713546 A SE7713546 A SE 7713546A SE 424117 B SE424117 B SE 424117B
Authority
SE
Sweden
Prior art keywords
level
magnetic tape
noise suppression
frequency dependent
tape apparatus
Prior art date
Application number
SE7713546A
Other languages
Swedish (sv)
Other versions
SE7713546L (en
Inventor
W Thanheiser
F Dobesch
Original Assignee
Saba 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 Saba Gmbh filed Critical Saba Gmbh
Publication of SE7713546L publication Critical patent/SE7713546L/en
Publication of SE424117B publication Critical patent/SE424117B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
SE7713546A 1976-12-07 1977-11-30 Magnetic tape apparatus with level and frequency dependent noise suppression SE424117B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2655325A DE2655325C2 (en) 1976-12-07 1976-12-07 Magnetic tape recorder with an effective noise suppression circuit during playback

Publications (2)

Publication Number Publication Date
SE7713546L SE7713546L (en) 1978-06-08
SE424117B true SE424117B (en) 1982-06-28

Family

ID=5994858

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7713546A SE424117B (en) 1976-12-07 1977-11-30 Magnetic tape apparatus with level and frequency dependent noise suppression

Country Status (7)

Country Link
CH (1) CH624786A5 (en)
DE (1) DE2655325C2 (en)
DK (1) DK544577A (en)
FR (1) FR2373851A1 (en)
IT (1) IT1143725B (en)
NL (1) NL7713473A (en)
SE (1) SE424117B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009981A (en) * 1961-06-10 1965-11-17 Emi Ltd Improvements relating to feedback amplifiers
GB1120541A (en) * 1965-08-11 1968-07-17 Dolby Ray Milton Improvements in noise reduction systems
NL163388C (en) * 1971-05-04 1980-08-15 Philips Nv NOISE REDUCTION CIRCUIT.
GB1469058A (en) * 1974-05-20 1977-03-30 Grodinsky R Noise reduction circuit
DE2426377B2 (en) * 1974-05-31 1979-05-31 Budapesti Radiotechnikai Gyar, Budapest Device for expanding the dynamic range of magnetic sound recording
DE2502980A1 (en) * 1975-01-23 1976-07-29 Vollmer Hans Ulrich Magnetic sound record noise reduction method - uses parallel circuits with high and low pass filters

Also Published As

Publication number Publication date
SE7713546L (en) 1978-06-08
FR2373851A1 (en) 1978-07-07
DE2655325B1 (en) 1977-12-22
CH624786A5 (en) 1981-08-14
DE2655325C2 (en) 1984-01-26
IT1143725B (en) 1986-10-22
DK544577A (en) 1978-06-08
NL7713473A (en) 1978-06-09
FR2373851B1 (en) 1983-06-17

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