FR3041464B1 - SOFT-CUTTING DISTORTION CIRCUIT - Google Patents

SOFT-CUTTING DISTORTION CIRCUIT Download PDF

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Publication number
FR3041464B1
FR3041464B1 FR1558792A FR1558792A FR3041464B1 FR 3041464 B1 FR3041464 B1 FR 3041464B1 FR 1558792 A FR1558792 A FR 1558792A FR 1558792 A FR1558792 A FR 1558792A FR 3041464 B1 FR3041464 B1 FR 3041464B1
Authority
FR
France
Prior art keywords
audio signal
clipping
amplifier
soft
stage
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.)
Active
Application number
FR1558792A
Other languages
French (fr)
Other versions
FR3041464A1 (en
Inventor
Pierre-Benoit Prud'Homme
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.)
Prudhomme Pierre Benoit
Original Assignee
Prudhomme Pierre Benoit
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 Prudhomme Pierre Benoit filed Critical Prudhomme Pierre Benoit
Priority to FR1558792A priority Critical patent/FR3041464B1/en
Publication of FR3041464A1 publication Critical patent/FR3041464A1/en
Application granted granted Critical
Publication of FR3041464B1 publication Critical patent/FR3041464B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
    • G10H3/186—Means for processing the signal picked up from the strings
    • G10H3/187—Means for processing the signal picked up from the strings for distorting the signal, e.g. to simulate tube amplifiers
    • 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
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/16—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by non-linear elements
    • 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
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/311—Distortion, i.e. desired non-linear audio processing to change the tone colour, e.g. by adding harmonics or deliberately distorting the amplitude of an audio waveform

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)

Abstract

Circuit de traitement audio à base de semi-conducteurs comprenant un étage d'entrée pour recevoir un signal audio d'entrée (10), un étage de sortie pour fournir un signal audio traité de sortie (14), un étage de traitement (2) agencé pour introduire des harmoniques dans le signal audio d'entrée et comprenant un amplificateur (3) avec au moins une boucle de contreréaction contenant un dispositif d'écrêtage pour diminuer le gain de l'amplificateur en fonction du signal audio traité de sortie, caractérisé en ce que le dispositif d'écrêtage comprend un réseau d'écrêtage (7) composé d'une pluralité de cellules d'écrêtage agencées pour être séquentiellement commutées dans ladite au moins une boucle de rétroaction pour une diminution progressive du gain de l'amplificateur de sorte à obtenir un écrêtage doux du signal audio traité de sortie.Semiconductor based audio processing circuit comprising an input stage for receiving an input audio signal (10), an output stage for supplying an output audio signal (14), a processing stage (2 ) arranged to introduce harmonics into the input audio signal and comprising an amplifier (3) with at least one feedback loop containing a clipping device to reduce the gain of the amplifier as a function of the output audio signal, characterized in that the clipping device comprises a clipping network (7) composed of a plurality of clipping cells arranged to be sequentially switched in said at least one feedback loop for a progressive reduction in the gain of the amplifier so as to obtain smooth clipping of the output audio signal.

FR1558792A 2015-09-18 2015-09-18 SOFT-CUTTING DISTORTION CIRCUIT Active FR3041464B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1558792A FR3041464B1 (en) 2015-09-18 2015-09-18 SOFT-CUTTING DISTORTION CIRCUIT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1558792A FR3041464B1 (en) 2015-09-18 2015-09-18 SOFT-CUTTING DISTORTION CIRCUIT
FR1558792 2015-09-18

Publications (2)

Publication Number Publication Date
FR3041464A1 FR3041464A1 (en) 2017-03-24
FR3041464B1 true FR3041464B1 (en) 2020-03-27

Family

ID=55072833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1558792A Active FR3041464B1 (en) 2015-09-18 2015-09-18 SOFT-CUTTING DISTORTION CIRCUIT

Country Status (1)

Country Link
FR (1) FR3041464B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113315480A (en) * 2021-05-31 2021-08-27 头领科技（昆山）有限公司 Audio processing chip and earphone

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847363C2 (en) * 1978-10-31 1982-06-09 Matth. Hohner Ag, 7218 Trossingen Transistor amplifier
US5133014A (en) * 1990-01-18 1992-07-21 Pritchard Eric K Semiconductor emulation of tube amplifiers
US4809336A (en) * 1987-03-23 1989-02-28 Pritchard Eric K Semiconductor amplifier with tube amplifier characteristics
US5596646A (en) * 1994-11-07 1997-01-21 Rocktron Corporation Audio tape saturation simulator
NZ531397A (en) * 2004-02-26 2006-10-27 Ind Res Ltd Audio amplifier circuit for producing distortion effects

Also Published As

Publication number Publication date
FR3041464A1 (en) 2017-03-24

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