ES482471A1 - Digital device synthesising noise from certain tones - has tone generator whose output signal is widened by addition of second input signal - Google Patents

Digital device synthesising noise from certain tones - has tone generator whose output signal is widened by addition of second input signal

Info

Publication number
ES482471A1
ES482471A1 ES482471A ES482471A ES482471A1 ES 482471 A1 ES482471 A1 ES 482471A1 ES 482471 A ES482471 A ES 482471A ES 482471 A ES482471 A ES 482471A ES 482471 A1 ES482471 A1 ES 482471A1
Authority
ES
Spain
Prior art keywords
signal
tone generator
widened
addition
synthesising
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
ES482471A
Other languages
Spanish (es)
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of ES482471A1 publication Critical patent/ES482471A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
    • G10H7/02—Instruments in which the tones are synthesised from a data store, e.g. computer organs in which amplitudes at successive sample points of a tone waveform are stored in one or more memories
    • G10H7/06—Instruments in which the tones are synthesised from a data store, e.g. computer organs in which amplitudes at successive sample points of a tone waveform are stored in one or more memories in which amplitudes are read at a fixed rate, the read-out address varying stepwise by a given value, e.g. according to pitch

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The device has a store for a first and second signal. There is a tone generator whose frequency is proportional to a certain input signal. There is a coupling circuit coupling the first signal from the store to the tone generator, so that it delivers a frequency proportional to that of the first signal. The first signal is combined with the second signal by combination devices of the coupling circuit, so that the tone generator signal spectrum is widened by the second signal addition.
ES482471A 1978-07-17 1979-07-13 Digital device synthesising noise from certain tones - has tone generator whose output signal is widened by addition of second input signal Expired ES482471A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92513078A 1978-07-17 1978-07-17

Publications (1)

Publication Number Publication Date
ES482471A1 true ES482471A1 (en) 1980-02-16

Family

ID=25451267

Family Applications (1)

Application Number Title Priority Date Filing Date
ES482471A Expired ES482471A1 (en) 1978-07-17 1979-07-13 Digital device synthesising noise from certain tones - has tone generator whose output signal is widened by addition of second input signal

Country Status (6)

Country Link
CA (1) CA1114954A (en)
DE (1) DE2928896C2 (en)
ES (1) ES482471A1 (en)
FR (1) FR2431744A1 (en)
IT (1) IT1120477B (en)
NO (1) NO151802C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209280B3 (en) * 2017-06-01 2018-10-11 Audi Ag Method for generating driving noise, acoustic controller and motor vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697699A (en) * 1969-10-22 1972-10-10 Ltv Electrosystems Inc Digital speech signal synthesizer
DE2507272A1 (en) * 1975-02-20 1976-09-02 Krupp Gmbh METHOD FOR ELECTRONIC SIMULATION OF SHIP NOISE
IT1033400B (en) * 1975-03-04 1979-07-10 Contraves Italiana Spa ELECTRONIC SIMULATOR OF PERIODIC SOUNDS OR NOISES WITH THE USE OF DIGITAL ELECTRONIC MEMORY ORGANS

Also Published As

Publication number Publication date
NO151802B (en) 1985-02-25
NO792361L (en) 1980-01-18
IT1120477B (en) 1986-03-26
NO151802C (en) 1985-06-05
DE2928896C2 (en) 1984-03-15
IT7949680A0 (en) 1979-07-06
DE2928896A1 (en) 1980-02-07
FR2431744A1 (en) 1980-02-15
FR2431744B1 (en) 1983-12-02
CA1114954A (en) 1981-12-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000217