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WO2018129372A1 - Double écouteur intra-auriculaire à diaphragme situé au milieu - Google Patents

Double écouteur intra-auriculaire à diaphragme situé au milieu Download PDF

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Publication number
WO2018129372A1
WO2018129372A1 PCT/US2018/012657 US2018012657W WO2018129372A1 WO 2018129372 A1 WO2018129372 A1 WO 2018129372A1 US 2018012657 W US2018012657 W US 2018012657W WO 2018129372 A1 WO2018129372 A1 WO 2018129372A1
Authority
WO
WIPO (PCT)
Prior art keywords
mid
frequency
pair
drivers
acoustic
Prior art date
Application number
PCT/US2018/012657
Other languages
English (en)
Inventor
Jerry HARVEY
Original Assignee
Harvey Jerry
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 Harvey Jerry filed Critical Harvey Jerry
Publication of WO2018129372A1 publication Critical patent/WO2018129372A1/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
    • H04R1/10—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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise

Definitions

  • Headphones are personal listening devices that are held in close proximately to the ear by some support system.
  • Earbuds are small personal listening devices that are positioned directly in front of the ear canal and are substantially smaller than a person's outer ear.
  • canalphones are personal listening devices that are substantially smaller than a person's outer ear, but they differ from earbuds in that they are placed directly in one end of the ear canal. Both earbuds and canalphones are held in
  • Canalphones are also referred to as in-ear monitors due to how the canalphone is worn by a listener.
  • a canalphone housing is worn in the ear of the user and not over and/or around the ear of the user .
  • Some canalphones also serve as earplugs due to the way the canalphone limits noise external to the
  • a canalphone system may include a canalphone housing, a low frequency armature driver carried by the canalphone housing, and a high frequency armature driver carried by the canalphone housing.
  • the system may also include a pair of mid- frequency diaphragm drivers carried by the canalphone housing and each mid-frequency diaphragm driver includes an acoustic outlet.
  • the system may further include a chamber positioning the pair of mid-frequency diaphragm drivers where one acoustic outlet faces the other acoustic outlet.
  • the system may additionally include a mid-sound bore carried by the chamber that transmits a mid frequency acoustic signal from the pair of mid- frequency diaphragm drivers to the canalphones' exterior.
  • the system may also include a cavity between the pair of mid-frequency diaphragm drivers' acoustic outlets, and the frequency response of the pair of mid-frequency diaphragm drivers is tuned acoustically proper by the cavity.
  • the cavity is between .0012 cubic millimeters to .002 cubic millimeters.
  • the mid-sound bore's volume is included in the cavity's volume calculation.
  • the chamber provides an acoustic low-pass filter of a mid frequency acoustic signal that transmits through the mid-sound bore.
  • controlling the cavity's volume enables shaping of the mid frequency acoustic signal.
  • the system further includes a second pair of mid-frequency diaphragm drivers with each having an acoustic outlet that faces the opposing acoustic outlet as positioned by the chamber, and the second pair of mid-frequency diaphragm drivers are positioned perpendicular to the pair of mid-frequency diaphragm drivers by the chamber.
  • the system further includes a low-sound bore that transmits a low frequency acoustic signal from the low frequency armature driver to the canalphones' exterior, a high-sound bore that transmits a high frequency acoustic signal from the high frequency armature driver to the canalphones' exterior, and the low frequency acoustic signal range is 20-200 hertz, the mid frequency acoustic signal range is 200-5000 hertz, and the high frequency acoustic signal range is 5-18
  • each mid-frequency diaphragm drivers comprises a 4.9 millimeter speaker.
  • the mid-frequency diaphragm drivers tuning is done in front of the drivers rather than the rear of the drivers .
  • FIG. 1 is a schematic block diagram of a system in accordance with the embodiments.
  • FIG. 2 is an exemplary pair of mid-frequency diaphragm drivers unit of the system of FIG. 1.
  • FIG. 3 is an exploded view of the pair of mid- frequency diaphragm drivers unit of the system of FIG. 1.
  • FIG. 4 is a different angle view of the pair of mid-frequency diaphragm drivers unit of FIG. 3.
  • FIG. 5 is a picture of a pair of mid-frequency diaphragm drivers unit of the system of FIG. 1.
  • FIG. 6 is a picture of an exemplary quad mid- frequency diaphragm drivers' unit design of the system of FIG. 1.
  • Fig. 7 is an exemplary wiring diagram of the system of FIG. 1.
  • Fig. 8 illustrates audio trace results of exemplary pairs of mid-frequency diaphragm drivers unit of the system of FIG. 1 on an analyzer.
  • FIG. 9 are engineering drawings of the chamber 22 and cavity 26 of the system of Fig. 1.
  • the system 10 includes a canalphone housing 12, a low frequency armature driver 14 carried by the canalphone housing, and a high frequency armature driver 16 carried by the canalphone housing.
  • the system 10 also includes a pair of mid-frequency diaphragm drivers 18 carried by the canalphone housing and each mid-frequency diaphragm driver includes an acoustic outlet 20.
  • the system further includes a chamber 22 positioning the pair of mid- frequency diaphragm drivers 18 where one acoustic outlet 20 faces the other acoustic outlet.
  • the system 10 additionally includes a mid-sound bore 24 carried by the chamber 22 that transmits a mid frequency acoustic signal from the pair of mid-frequency diaphragm drivers 18 to the canalphone housing's 12 exterior.
  • the system also includes a cavity 26 between the pair of mid-frequency diaphragm drivers '18 acoustic outlets 20, and the frequency response of the pair of mid-frequency diaphragm drivers is tuned acoustically proper by the cavity as later discussed with regards to FIG. 8.
  • an audio source 32 provides an audio signal over wires 34 to the system 10 to drive the low frequency armature driver 14, the high frequency armature driver 16, and the pair of mid-frequency diaphragm drivers 18.
  • the cavity 26 is between .0012 cubic millimeters to .002 cubic millimeters.
  • the mid-sound bore's 24 volume is included in the cavity's 26 volume calculation.
  • .0016 cubic millimeters is the volume of the cavity 26.
  • the chamber 22 provides an acoustic low-pass filter of a mid frequency acoustic signal that transmits through the mid-sound bore 24.
  • controlling the cavity's 26 volume enables shaping of the mid frequency acoustic signal.
  • the system 10 further includes a second pair of mid-frequency diaphragm drivers 18 with each having an acoustic outlet 20 that faces the opposing acoustic outlet as positioned by the chamber 22, and the second pair of mid-frequency diaphragm drivers are positioned perpendicular to the pair of mid-frequency diaphragm drivers by the chamber as shown in FIG. 6.
  • the system 10 further includes a low-sound bore 28 that transmits a low frequency acoustic signal from the low frequency armature driver 14 to the canalphone housing's 12 exterior, a high-sound bore 30 that transmits a high frequency acoustic signal from the high frequency armature driver 16 to the canalphone housing's exterior, and the low frequency acoustic signal range is 20-200 hertz, the mid frequency acoustic signal range is 200-5000 hertz, and the high frequency acoustic signal range is 5-18
  • each mid-frequency diaphragm drivers 18 comprises a 4.9 millimeter speaker. In another embodiment, the mid-frequency diaphragm drivers 18 tuning is done in front of the mid-frequency diaphragm drivers rather than the rear of the mid-frequency diaphragm drivers .
  • Fig. 5 is an exemplary pair of mid-frequency diaphragm drivers 18, chamber 22, and mid-sound bore 24 being tested as evidenced by the long clear tube attached to the mid-sound bore 24.
  • the testing is done with an analyzer, e.g. spectrum analyzer, wave analyzer, audio frequency analyzer, FFT audio analysis, and/or the like and generates traces like those of FIG. 8, which shows the traces of an acoustically proper tuned chamber 22 contrasted with a chamber 22 that is not acoustically proper.
  • an analyzer e.g. spectrum analyzer, wave analyzer, audio frequency analyzer, FFT audio analysis, and/or the like and generates traces like those of FIG. 8, which shows the traces of an acoustically proper tuned chamber 22 contrasted with a chamber 22 that is not acoustically proper.
  • Fig. 6 is a picture embodiment of quad mid- frequency diaphragm drivers 18 installed in a one chamber 22 design for use in the system of FIG. 1.
  • the bare copper wires are ground wires .
  • FIG.7 illustrates that there can be more than one low frequency armature driver 14 in the system 10, and that there can be more than one high frequency armature driver 16 in the system 10.
  • Cable 36 is connected to audio source 32 to provide an audio signal over wires 34.
  • the red wires 34 are low audio signals and the yellow wire 34 is a high audio signal.
  • the red wires 34 and the yellow wire 34 carried the same audio signal.
  • the green lines are ground wires .
  • the length of the sound bores 24, 28, and 30 are indicated for various styles of sound bores.
  • some exemplary discrete components e.g. capacitors, resistors, values are given and these discrete components are used for filtering the audio signal. Other discrete components such as dampers, inductors, and/or the like can be used.
  • Fig. 8 illustrates audio trace analyzer results of exemplary pairs of mid-frequency diaphragm drivers 18 units of the system of FIG. 1.
  • the yellow trace is an acoustically proper tuned chamber 22 contrasted with the pink trace of a chamber 22 that is not acoustically proper.
  • the engineering drawings FIG. 9 include the chamber 22, mid-sound bore 24, and cavity 26 of the system of Fig. 1.
  • the mid-sound bore 24 stands alone while in the different embodiments of FIGS. 2-4, the mid-sound bore includes an extension piece.
  • the advantage of system 10 includes improved tonality for a user of the canalphone .
  • the pair of mid-frequency diaphragm drivers 18 in the geometry described in this application provides better tonality to the vocals and/or upper register of a bass guitar heard through system 10 compared to a similar system that uses armature drivers for the mids or mid diaphragm drivers in a different geometry.

Landscapes

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

Abstract

L'invention concerne un système d'écouteur intra-auriculaire qui peut comprendre un boîtier d'écouteur intra-auriculaire, un dispositif d'entraînement d'armature à basse fréquence porté par le boîtier d'écouteur intra-auriculaire et un dispositif d'entraînement d'armature à haute fréquence porté par le boîtier d'écouteur intra-auriculaire. Le système peut également comprendre une paire de dispositifs d'entraînement de diaphragme à moyenne fréquence portés par le boîtier d'écouteur intra-auriculaire et chaque dispositif d'entraînement de diaphragme à moyenne fréquence comprend une sortie acoustique. Le système peut en outre comprendre une chambre qui positionne la paire de dispositifs d'entraînement de diaphragme à moyenne fréquence dans laquelle une sortie acoustique fait face à l'autre sortie acoustique. Le système peut en outre comprendre un alésage de milieu de son porté par la chambre qui transmet un signal acoustique de moyenne fréquence à partir de la paire de dispositifs d'entraînement de diaphragme de moyenne fréquence vers l'extérieur d'écouteur intra-auriculaire. Le système peut également comprendre une cavité entre la paire de sorties acoustiques de dispositif d'entraînement de diaphragme à moyenne fréquence, et la réponse en fréquence de la paire de dispositifs d'entrainement de diaphragme à moyenne fréquence est accordée acoustiquement par la cavité.
PCT/US2018/012657 2017-01-07 2018-01-05 Double écouteur intra-auriculaire à diaphragme situé au milieu WO2018129372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762443652P 2017-01-07 2017-01-07
US62/443,652 2017-01-07

Publications (1)

Publication Number Publication Date
WO2018129372A1 true WO2018129372A1 (fr) 2018-07-12

Family

ID=62791245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/012657 WO2018129372A1 (fr) 2017-01-07 2018-01-05 Double écouteur intra-auriculaire à diaphragme situé au milieu

Country Status (1)

Country Link
WO (1) WO2018129372A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923031A (en) * 1986-02-26 1990-05-08 Electro-Voice, Incorporated High output loudspeaker system
WO2006083834A2 (fr) * 2005-02-04 2006-08-10 Ultimate Ears, Llc Prothese auditive a circuits d'attaque multiples accordes avec conduit auditif
US8897463B2 (en) * 2010-05-26 2014-11-25 Jerry Harvey Dual high frequency driver canalphone system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923031A (en) * 1986-02-26 1990-05-08 Electro-Voice, Incorporated High output loudspeaker system
WO2006083834A2 (fr) * 2005-02-04 2006-08-10 Ultimate Ears, Llc Prothese auditive a circuits d'attaque multiples accordes avec conduit auditif
US8897463B2 (en) * 2010-05-26 2014-11-25 Jerry Harvey Dual high frequency driver canalphone system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANDY REGAN: "NEW PRODUCT ANNOUNCEMENT", JERRY HARVEY AUDIO LOLATM HYBRID CIEM AND UNIVERSAL, 4 April 2017 (2017-04-04), pages 1 - 4, Retrieved from the Internet <URL:https://www.head-fi.org/threads/new-product-announcement-jerry-harvey-audio-lola%E2%84%A2-hybrid-ciem-and-universal.843348> *
ARTTU VALTTERI NURMI: "Battery Powered Crossover for In-Ear Monitors, Helsinki Metropolia University of Applied Sciences , Bachelor of Engineering, Electronics", THESIS, 27 January 2015 (2015-01-27), pages 2 - 3, XP055517665 *

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