WO2017076455A1 - Écouteur intra-conque - Google Patents

Écouteur intra-conque Download PDF

Info

Publication number
WO2017076455A1
WO2017076455A1 PCT/EP2015/075846 EP2015075846W WO2017076455A1 WO 2017076455 A1 WO2017076455 A1 WO 2017076455A1 EP 2015075846 W EP2015075846 W EP 2015075846W WO 2017076455 A1 WO2017076455 A1 WO 2017076455A1
Authority
WO
WIPO (PCT)
Prior art keywords
bass
tubes
housing
back chamber
intra
Prior art date
Application number
PCT/EP2015/075846
Other languages
English (en)
Inventor
Jie Zhou
Original Assignee
Gibson Innovations Belgium N.V.
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 Gibson Innovations Belgium N.V. filed Critical Gibson Innovations Belgium N.V.
Priority to PCT/EP2015/075846 priority Critical patent/WO2017076455A1/fr
Publication of WO2017076455A1 publication Critical patent/WO2017076455A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/11—Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion

Definitions

  • the present invention relates to an intra concha earphone comprising a housing, a speaker driver, a front chamber and a back chamber.
  • the housing houses the speaker driver, the front chamber and the back chamber and the speaker driver divides the housing into the front chamber and the back chamber.
  • the front chamber is directed towards the external auditory canal of a human being.
  • the present invention relates particularly to an intra concha earphone to be used with a particularly portable audio player.
  • US 2008/0002835 Ai discloses an earphone with a first acoustic chamber including a reactive element and a resistive element in parallel, a second acoustic chamber separated from the first acoustic chamber by an acoustic transducer, and a housing to support the apparatus from the concha of a wearer's ear and to extend the second acoustic chamber into the canal of the wearer's ear.
  • Some earphones have a bass tube to improve the frequency response of an earphone.
  • This bass tube may protrude from the back chamber or from the housing into the environment of the earphone and may disturb the user.
  • an intra concha earphone comprises a housing, a speaker driver, a front chamber and a back chamber.
  • the housing houses the speaker driver, the front chamber and the back chamber and the speaker driver divides the housing into the front chamber and the back chamber.
  • a resistive port is arranged on said back chamber and is covered with acoustic damping material.
  • At least two bass tubes respectively connect said back chamber to the open air.
  • the at least two bass tubes are each arranged to provide higher acoustic mass and lower acoustic resistance to the earphone than said resistive port does, particularly to enhance the bass extension of the earphone, particularly to increase the bass extension below 400 Hz.
  • each of the at least two bass tubes may increase the frequency depending sound pressure of the intra concha earphone without increasing the size or dimensions of its housing significantly. With this design a single thick and long straight bass tube can be avoided and the underlying object is solved.
  • the intra concha earphone according to the first aspect may offer the advantage of providing the liberty to adapt the geometry of each of the at least two bass tubes to the design or the shape of the housing.
  • the housing serves to delimit the back chamber from the environment.
  • the housing may serve to house the at least two bass tubes, at least sectionally.
  • the housing comprises a wall which may have one or more openings and at least one of the openings may serve to fluidly connect the front chamber and/or the back chamber with the environment.
  • the housing may comprise at least one opening arranged at a second end of at least one of the bass tubes.
  • the speaker driver is a electromechanical device which serves to produce a sound wave depending on an electrical signal.
  • the speaker driver may comprise a diaphragm, an electrical coil and a magnet.
  • the speaker driver or its diaphragm may separate the front chamber from the back chamber.
  • the front chamber comprises an air volume and is directed towards the external auditory canal of a human being during an intended use of the intra concha earphone.
  • the front chamber may be entirely contained by the housing.
  • the back chamber comprises an air volume which is fluidly connected with the environment.
  • the back chamber may be entirely contained by the housing.
  • the resistive port comprises an opening through which the back chamber is fluidly connected with the environment.
  • the acoustic mass of the resistive port is smaller than the acoustic mass of each of the bass tubes.
  • the acoustic resistance of the resistive port is greater or larger than the acoustic resistance of each of the bass tubes.
  • the resistive port may be arranged adjacent to a second end of at least one of the bass tubes.
  • the resistive port is covered an acoustic damping material.
  • the resistive port may comprise a channel shorter than each of the bass tubes and the channel may be fluidly connected with the back chamber.
  • the cross section area of the resistive port may be bigger than the cross section area of each of the bass tubes.
  • the volume of the resistive port's channel may be smaller than the volume of each of the bass tubes.
  • the bass tube serves to fluidly connect the back chamber with the environment.
  • the bass tube extends between the back chamber and the environment and may contain a specified air volume.
  • the bass tube has a first end fluidly connected with the back chamber and a second end fluidly connected with the environment. The second end may be connected with one of the openings of the housing.
  • the bass tube may be arranged on or in the housing adjacent to the back chamber.
  • the bass tubes may sectionally follow a curved path.
  • the acoustic resistance or acoustic impedance may be measured by at least two microphones spaced apart along one of the bass tubes or by two microphones spaced apart along the resistive port.
  • TMTC two-microphone-3-calibration
  • the at least two bass tubes connect to the back chamber at the same inlet. This may offer the advantage to particularly fluidly connect the at least two bass tubes in parallel, to provide the at least two bass tubes with a similar acoustic resistance or to simplify the design of the earphone.
  • the at least two bass tubes exit to the open air at the same outlet. This may offer the advantage to particularly fluidly connect the at least two bass tubes in parallel, to provide the at least two bass tubes with a similar acoustic resistance or to simplify the design of the earphone.
  • the at least two bass tubes curve around said housing and together form a toroidal tube shape.
  • each of the bass tubes extends with an essentially circular cross-section, at least sectionally, between its first end and its second end such that the combined bass tubes form a torus.
  • each of the bass tubes extends with an essentially triangular cross-section. This may offer the advantage of maintaining an essentially circular shape of the earphone or of its housing.
  • the cross section of the bass tube could be in any shape, but some shape may produce higher acoustic resistance.
  • the at least two bass tubes are respectively in the shape of a semi circular tube.
  • each of the at least two bass tubes forms less than half of a torus.
  • one, two or more of the at least two bass tubes may be filled with an acoustic damping material. This may offer the advantage of controlling the increase of the frequency depending sound pressure of the intra concha earphone, particularly at frequencies below 400 Hz, without increasing the size or dimensions of its housing significantly. This may offer the advantage of controlling the acoustic resistance of the at least two bass tubes.
  • the at least two bass tubes may be covered with a metal mesh, fabric mesh or felt paper. Preferably, such a mesh is arranged at the first end and/or at the second end of one, two or more of the at least two bass tubes.
  • the at least two bass tubes extend within the housing, at least sectionally, preferably with an essentially constant curvature.
  • the at least two bass tubes extend between the speaker driver, its diaphragm or the back chamber and a wall section of the housing.
  • the at least two bass tubes may extend adjacent to an essentially ring shaped or conical section of the housing and this ring shaped section may have an opening to the environment. This may offer the advantage of maintaining an essentially circular shape of the earphone or of its housing.
  • the volume contained by a first of the at least two bass tubes is greater or larger than the volume contained by a second of the at least two bass tubes.
  • the length and/or the cross sectional area of the first bass tube is greater or larger than the length and/or the cross sectional area of the second bass tube
  • the volumes and/or the dimensions of the first bass tube and the second bass tube are essentially equal.
  • the at least two bass tubes extend from a common inlet arranged in an essentially plate shaped rear wall section of the housing, extend between the rear wall section and said ring shaped or conical section of the housing and extend to a common outlet.
  • This may offer the advantage of maintaining an essentially circular shape of the earphone or of its housing.
  • the resistive port and at least two of the bass tubes share the same outlet.
  • an opening of the resistive port is arranged between the second ends of two of the bass tubes. This may offer the advantage of better controlling the increase of sound pressure at frequencies below 400 Hz.
  • the resistive port contributes more than half, preferably more than 2/3, of the overall acoustic resistance of an arrangement comprising the resistive port and at least two bass tubes wherein the resistive port and the at least two bass tubes form a parallel connection with respect to the back chamber. This applies to frequencies below 200 Hz in particular.
  • the modulus of the acoustic impedance of the bass tube is smaller than the modulus of the resistive port at frequencies below 200 Hz.
  • the modulus of the acoustic impedance of the bass tube is similar to the modulus of the resistive port at the resonance frequency of the bass tube and the back chamber.
  • the resistive port is covered with a damping material in contrast to the bass tubes.
  • Figure 1 schematically shows a perspective view of an embodiment of the intra concha earphone
  • Figure 2 schematically shows a side view of the embodiment of figure 1
  • Figure 3 schematically shows a further perspective view of the embodiment of figure 1
  • Figure 4 schematically shows two of the bass tubes ending near the resistive port of another embodiment of the intra concha earphone.
  • the present invention relates to a intra concha earphone with a housing, a speaker driver, a front chamber and a back chamber.
  • the housing houses the speaker driver, the front chamber and the back chamber and the speaker driver divides the housing into the front chamber and the back chamber.
  • a resistive port is arranged on said back chamber and is covered with acoustic damping material.
  • At least two bass tubes respectively connect said back chamber to the open air.
  • the at least two bass tubes are each arranged to provide higher acoustic mass and lower acoustic resistance to the earphone than said resistive port does, particularly to enhance the bass extension of the earphone, particularly to increase the bass extension and/or sound pressure of frequencies below 400 Hz.
  • FIG. 1 schematically shows an intra concha earphone 1.
  • the housing 2 has a wall 10 delimiting the front chamber and the back chamber against the environment.
  • the housing has a rather circular wall section 11 and a conical wall section 11a.
  • Two bass tubes 7, 7a share an inlet 8 fluidly connecting the bass tubes with the back chamber.
  • the conical wall section 11a is indicated by dashed lines to reveal internal structures of the bass tubes.
  • the bass tubes each follow a curved path (indicated by curved arrows) and terminate at a preferably shared outlet 9.
  • a resistive port is connected with the outlet.
  • the resistive port has a channel ending between the second ends of the two bass tubes.
  • the bass tubes are arranged adjacent to and inside of the conical wall section.
  • the two bass tubes extend from a shared inlet arranged in the plate shaped wall section.
  • the shared outlet is arranged opposite of the shared inlet.
  • a plate shaped wall section separates the back chamber from the two bass tubes.
  • the bass tubes follow a curved path of essentially constant curvature sharing the centre.
  • the bass tubes end in openings arranged in the conical wall section 11a.
  • the overall diameter of the earphone or its housing may be reduced by 2 mm.
  • Figure 2 schematically shows a side view of the embodiment of figure 1.
  • the bass tubes 7, 7a are arranged adjacent and inside of the conical wall section na.
  • the bass tubes 7, 7a are separated from the back chamber by the plate shaped wall section.
  • the bass tubes 7, 7a have an essentially triangular cross-section.
  • FIG. 3 schematically shows a further perspective view of the embodiment of figure 1.
  • the bass tube 7 extends from the inlet 8 following a curved path indicated by an arrow and terminating adjacent to the resistive port 6.
  • the bass tube 7 is delimited from the environment by the conical wall section 11a of the housing and from the back chamber by the plate shaped wall section.
  • the two bass tubes each have a length between 7 to 11 mm and an equivalent inner diameter between 1.2 and 1.6 mm.
  • the two bass tubes each have a length of 9 mm and an equivalent inner diameter of 1.4 mm.
  • FIG 4 schematically shows two bass tubes 7, 7a and the resistive port 6 ending at the same outlet according to another embodiment of the intra concha earphone.
  • the bass tubes each extend initially along a curved path through the back chamber 5 (indicated by a dashed line) followed by a straight part and terminate near the resistive port.
  • the straight parts are separated from each other by an essentially rectangular channel of the resistive port.
  • the bass tubes and the resistive port share the same outlet. Arrows indicate the paths air might follow.
  • An opening of the resistive port is covered by damping material 12.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)

Abstract

L'invention concerne un écouteur intra-conque comprenant : une enveloppe accueillant un haut-parleur, ledit haut-parleur divise ladite enveloppe en une chambre avant et une chambre arrière ; un orifice à résistance sur ladite chambre arrière, recouvert d'un matériau d'atténuation acoustique ; au moins deux tubes de basses, connectant respectivement ladite chambre arrière à l'air libre ; où lesdits deux tubes de basses sont configurés pour fournir une masse acoustique plus élevée et une résistance acoustique plus faible à l'écouteur que ledit orifice à résistance de façon à améliorer l'extension des basses de l'écouteur.
PCT/EP2015/075846 2015-11-05 2015-11-05 Écouteur intra-conque WO2017076455A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/075846 WO2017076455A1 (fr) 2015-11-05 2015-11-05 Écouteur intra-conque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/075846 WO2017076455A1 (fr) 2015-11-05 2015-11-05 Écouteur intra-conque

Publications (1)

Publication Number Publication Date
WO2017076455A1 true WO2017076455A1 (fr) 2017-05-11

Family

ID=54476965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/075846 WO2017076455A1 (fr) 2015-11-05 2015-11-05 Écouteur intra-conque

Country Status (1)

Country Link
WO (1) WO2017076455A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111654776A (zh) * 2020-06-16 2020-09-11 惠州市业松科技有限公司 一种改变耳机低频的频响参数方法
CN112788459A (zh) * 2019-11-01 2021-05-11 易音特电子株式会社 与管道结合成一体的接收器模块
CN117499836A (zh) * 2024-01-03 2024-02-02 成都水月雨科技有限公司 一种多动圈组合式耳机及其信号处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080002835A1 (en) * 2006-06-30 2008-01-03 Roman Sapiejewski Earphones
WO2013192340A1 (fr) * 2012-06-20 2013-12-27 Apple Inc. Écouteur ayant un orifice de fuite acoustique commandé
US8670586B1 (en) * 2012-09-07 2014-03-11 Bose Corporation Combining and waterproofing headphone port exits
US20140294223A1 (en) * 2013-03-26 2014-10-02 Roman Sapiejewski Headset Porting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080002835A1 (en) * 2006-06-30 2008-01-03 Roman Sapiejewski Earphones
WO2013192340A1 (fr) * 2012-06-20 2013-12-27 Apple Inc. Écouteur ayant un orifice de fuite acoustique commandé
US8670586B1 (en) * 2012-09-07 2014-03-11 Bose Corporation Combining and waterproofing headphone port exits
US20140294223A1 (en) * 2013-03-26 2014-10-02 Roman Sapiejewski Headset Porting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
V. GIBIAT; G. LALOË: "Acoustic impedance measurements by the two-microphone-3-calibration (TMTC) method", J. ACOUST. SOC. AM., vol. 88, 1990, pages 2533 - 2545, XP000172469, DOI: doi:10.1121/1.399975

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112788459A (zh) * 2019-11-01 2021-05-11 易音特电子株式会社 与管道结合成一体的接收器模块
CN112788459B (zh) * 2019-11-01 2023-07-21 易音特电子株式会社 与管道结合成一体的接收器模块
CN111654776A (zh) * 2020-06-16 2020-09-11 惠州市业松科技有限公司 一种改变耳机低频的频响参数方法
CN111654776B (zh) * 2020-06-16 2022-04-01 惠州市业松科技有限公司 一种改变耳机低频的频响参数方法
CN117499836A (zh) * 2024-01-03 2024-02-02 成都水月雨科技有限公司 一种多动圈组合式耳机及其信号处理方法
CN117499836B (zh) * 2024-01-03 2024-03-15 成都水月雨科技有限公司 一种多动圈组合式耳机及其信号处理方法

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