CN109155882A - sound device - Google Patents
sound device Download PDFInfo
- Publication number
- CN109155882A CN109155882A CN201780029055.7A CN201780029055A CN109155882A CN 109155882 A CN109155882 A CN 109155882A CN 201780029055 A CN201780029055 A CN 201780029055A CN 109155882 A CN109155882 A CN 109155882A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- sound
- neck ring
- opening
- acoustic
- 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.)
- Pending
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- 230000003321 amplification Effects 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 2
- 210000003109 clavicle Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 210000000003 hoof Anatomy 0.000 description 2
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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
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means 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
- H04R1/20—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
-
- 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
- H04R1/20—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
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
- H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
- H04R1/347—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers for obtaining a phase-shift between the front and back acoustic wave
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
- H04R5/0335—Earpiece support, e.g. headbands or neckrests
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of sound device (10), and with neck ring (12), which is constructed and arranged to wear around the neck (N) of user.Neck ring (12) includes shell (13), the shell has the first acoustic waveguide (110) and the second acoustic waveguide (160), first acoustic waveguide has the first sound outlet opening (50), and the second acoustic waveguide has second sound exit opening (40).In the presence of being acoustically coupled to the first after-opening formula acoustic driver (14) of first wave guide (110) and be acoustically coupled to the second after-opening formula acoustic driver (16) of second waveguide (160).
Description
Background technique
This disclosure relates to sound device.
Headphone has the acoustic driver being placed on ear, above ear or in ear.Therefore, they are one
Determine to be difficult to wear in degree, and the ability that user hears ambient sound can be reduced.
Summary of the invention
All examples and feature mentioned below can by technically it is possible in a manner of combine.
Sound device of the invention will be high-quality in the case where not having acoustic driver on ear, above ear or in ear
Sound guidance is measured to every ear.The sound device is designed to around worn.The sound device may include with shell
Neck ring.Neck ring can have " shape of a hoof " or shape substantially " u "-shaped, and there are two supporting leg, the two supporting legs to be placed on clavicle for tool
Side or near, and be placed on the flexural center part at neck rear.The sound device can have there are two acoustic driver；Outside
Respectively there is an acoustic driver on each supporting leg of shell.Driver can be located at below the desired location of user's ear, sound
Axis is directed toward ear.The sound device can further include two waveguides in shell, and each waveguide all has below ear, close to drive
The outlet of dynamic device.The back side of one driver can be acoustically coupled to the entrance of a waveguide, and the back side of another driver
It can be acoustically coupled to the entrance of another waveguide.Each waveguide can have an end, be located at for the driver of the end-feed
Below one ear (left or right side), and it is located at another end (opening below another ear (right side or left side)
End).
Waveguide can be folded each other inside the shell.Waveguide can be constructed and arranged, so that the entrance and exit position of each waveguide
In the top surface of shell.Waveguide can be constructed and arranged, so that each waveguide has roughly the same cross-sectional area along its length.Wave
Leading can be constructed and arranged so that each waveguide is since the dead astern of a driver, along shell neck ring adjacent branch
Top section in leg extends downwardly into the end of the supporting leg, goes to the bottom part of shell downwards, and rotate 180 degree so that
Supporting leg back extends, then across central part and downward from the top section of another supporting leg, drives back to another is located at
The outlet in dynamic device dead astern.Each waveguide can be overturn in the central part of neck ring from the bottom part of shell to top section
Position.
In one aspect, a kind of sound device includes the neck ring being constructed and arranged to around worn.The neck ring packet
Shell is included, which has the first acoustic waveguide and the second acoustic waveguide, which has the first sound outlet opening, this
Two acoustic waveguides have second sound exit opening.In the presence of be acoustically coupled to first wave guide the first after-opening formula acoustic driver and
It is acoustically coupled to the second after-opening formula acoustic driver of second waveguide.
Embodiment may include one or any combination of them in following features.First and second acoustic drivers
It can be driven, so that their at least some upper sound for issuing out-phase in spectrum.First after-opening formula acoustic driver can
The first acoustic axis of the desired location for an ear for being pointed generally in user, and the second after-opening are carried and had by shell
Formula acoustic driver also can carry and have the second of the desired location for the another ear for being pointed generally in user by shell
Acoustic axis.First sound outlet opening can be located near the second acoustic driver, and second sound exit opening can be located at first
Near acoustic driver.Each waveguide can make the correspondence acoustic driver of one end be located at the side on head and in adjoining ear
Near and below, and the other end lead to its sound outlet opening, positioned at head the other side and in another adjoining ear
Near and below.
Embodiment may include one or any combination of them in the feature of above and below.Shell can have
Outer wall, and the first and second sound outlets opening can be limited in the outer wall of shell.Waveguide can be by the outer of shell
The inner wall of wall and shell limits.The inner wall of shell can be placed along longitudinal axis, which reverses 180 ° along its length.Neck ring
It can be substantially " u "-shaped, there are central part and the first and second leg portions, the first and second leg portions are from center
Part is sagging and has the distal end spaced apart to limit the open end of neck ring, and wherein the distortion in outer casing inner wall is located at neck
The central part of ring.It is that the inner wall of shell can be general planar and be located at two sound outlets opening lower section.Shell it is interior
Wall may include the sound diverter positioned at the protrusion of each sound outlet opening lower section.Shell can have when user wears
When the top towards ear, and wherein first and sound exit opening be limited in the top of shell.
Embodiment may include one or any combination of them in the feature of above and below.Shell can have
When being worn by user near the top section of ear, and when being worn by user near the base portion of trunk
Point, and each waveguide can be positioned partially in the top section of shell and be positioned partially in the bottom part of shell.
Neck ring can have central part, first leg part and the second leg portion, first leg part and second to be substantially " u "-shaped
Leg portion is sagging from central part and has the distal end spaced apart to limit the open end of neck ring.In outer casing inner wall
Distortion can be located in the central part of neck ring.First acoustic driver can be located in the first leg part of neck ring, and second
Acoustic driver can be located in the second leg portion of neck ring.First wave guide can be since below the first acoustic driver, edge
Shell top section extend to neck ring first leg part distal end, turn to the bottom part of shell and along
One leg portion extends in the central part of neck ring, it turns to the top section of shell and extends to the second supporting leg there
In part, the first sound outlet opening is reached.Second waveguide can be since below the second acoustic driver, along the top of shell
Portion part extends to the distal end of the second leg portion of neck ring, it turns to the bottom part of shell and along the there
Two leg portions extend in the central part of neck ring, it turns to the top section of shell and extends to first leg there
In part, second sound exit opening is reached.
On the other hand, a kind of sound device includes neck ring, which is constructed and arranged to around worn, the neck
Ring includes shell, which includes the first acoustic waveguide with the first sound outlet opening, and there is second sound outlet to open
Second acoustic waveguide of mouth, the first after-opening formula acoustic driver is acoustically coupled to first wave guide, wherein the first after-opening formula acoustics
Driver carries and has the first acoustic axis of the desired location for an ear for being pointed generally in user by shell, opens after second
Mouth formula acoustic driver is acoustically coupled to second waveguide, wherein the second after-opening formula acoustic driver is carried and had by shell
It is pointed generally in the second acoustic axis of the desired location of the another ear of user, wherein the first sound outlet opening is located at the rising tone
It learns near driver, and second sound exit opening is located near the first acoustic driver, and wherein the first and second sound
It learns driver to be driven, so that they issue the sound of out-phase.
Embodiment may include one or any combination of them in following features.Waveguide can be by the outer of shell
The inner wall of wall and shell limits, and wherein the inner wall of shell is placed along longitudinal axis, which reverses along its length
180°.Neck ring can be it is substantially " u "-shaped, have central part and the first and second leg portions, the first and second supporting legs
Part is sagging from central part and has the distal end spaced apart to limit the open end of neck ring, wherein in outer casing inner wall
Distortion is located at the central part of neck ring.Shell can have the top section when being worn by user near ear, and
When being worn by user near the bottom part of trunk, and wherein each waveguide portion it is located at the top section of shell
In and be positioned partially in the bottom part of shell.
On the other hand, a kind of sound device includes neck ring, which is constructed and arranged to around worn, the neck
Ring includes shell, which includes the first acoustic waveguide with the first sound outlet opening, and there is second sound outlet to open
Mouthful the second acoustic waveguide, wherein waveguide is limited by the outer wall of shell and the inner wall of shell, and wherein the inner wall of shell along
Longitudinal axis is placed, which reverses 180 ° along its length, and wherein neck ring is substantially " u "-shaped, has central part, the
One leg portion and the second leg portion, first leg part and the second leg portion it is sagging from central part and have interval
It opens to limit the distal end of the open end of neck ring, wherein the distortion in outer casing inner wall is located at the central part of neck ring, China and foreign countries
Shell has when being worn by user near the top section of ear and when being worn by user near the bottom of trunk
Portion part, and wherein it is located in the top section of shell and is positioned partially to each waveguide portion the bottom part of shell
In.In the presence of the first after-opening formula acoustic driver for being acoustically coupled to first wave guide, wherein the first after-opening formula acoustic driver
In the first leg part of neck ring and have be pointed generally in user an ear desired location the first acoustic axis.
In the presence of the second after-opening formula acoustic driver for being acoustically coupled to second waveguide, wherein the second after-opening formula acoustic driver is located at
In second leg portion of neck ring and have be pointed generally in user another ear desired location the second acoustic axis.The
One and second acoustic driver driven so that they issue out-phase sound.First sound outlet opening is located at the second acoustics
Near driver, and second sound exit opening is located near the first acoustic driver.First wave guide drives from the first acoustics
Start below device, the distal end of the first leg part of neck ring is extended to along the top section of shell, it is turned to there
It the bottom part of shell and is extended in the central part of neck ring along first leg part, it turns to the top of shell there
It portion part and extends in the second leg portion, reaches the first sound outlet opening, and second waveguide is driven from the second acoustics
Start below dynamic device, the distal end of the second leg portion of neck ring is extended to along the top section of shell, it turns there
To shell bottom part and extend to neck ring along the second leg portion central part in, it turns to shell there
It top section and extends in first leg part, reaches second sound exit opening.
On the other hand, a kind of sound device includes neck ring, which is constructed and arranged to around worn, the neck
Ring includes the first acoustic waveguide with the first sound outlet opening, and the second acoustic waveguide with second sound exit opening,
First after-opening formula acoustic driver is acoustically coupled to first wave guide, and the second after-opening formula acoustic driver is acoustically coupled to
Second waveguide.In the presence of the first pressure attenuating elements for being acoustically coupled to first wave guide, wherein first pressure attenuating elements are constructed
Be arranged to decaying first wave guide in one or more acoustic resonances, and be acoustically coupled to second waveguide second pressure decaying
Element, wherein second pressure attenuating elements are constructed and arranged to one or more acoustic resonances in decaying second waveguide.
Embodiment may include one or any combination of them in following features.First pressure attenuating elements can be
First wave guide is acoustically coupled at the first position of the Pressure maximum value of first wave length to be decayed, and second pressure declines
Second waveguide can be acoustically coupled in the second place of the Pressure maximum value for second wave length to be decayed by subtracting element.First
Position can be the about a quarter of first wave length away from the distance that the first sound outlet is open, and the second position goes out away from second sound
The distance of mouth opening can be the about a quarter of second wave length.First and second pressure damping elements may include in following at least
One: foam, the foam have at least some closed pores；The resistance structure of waveguide wall opening, the waveguide wall opening covers wall opening
Or in wall opening；With pressure loss short tube.
Embodiment may include one or any combination of them in following features.First and second decline of pressure member
At least one of part may include shunting waveguide.The shunting waveguide may include the pipe in both ends open, and one end of the pipe is located at the
The inside of one waveguide or second waveguide is directly coupled to first wave guide or second waveguide, and have be located at it is at the other end or another
The resistance structure of adjacent one end.The other end of the pipe can be located in first wave guide or second waveguide, open with the sound outlet of waveguide
Mouth is in same plane.The pipe can have the length of the about a quarter of the wavelength equal to acoustic resonance to be decayed.
Embodiment may include one or any combination of them in following features.First acoustic driver and second
Acoustic driver can be driven, so that they issue the sound of out-phase.First acoustic driver can be carried and be had by neck ring
It is pointed generally in the first acoustic axis of the desired location of the ear of user, and the second acoustic driver can be carried simultaneously by neck ring
And there is the second acoustic axis of the desired location for the another ear for being pointed generally in user.First sound outlet opening can be located at the
Near two acoustic drivers, and second sound exit opening can be located near the first acoustic driver.Each waveguide can make it
The correspondence acoustic driver of one end be located at the side on head and adjoining ear near and below, and the other end leads to its sound
Sound exit opening, positioned at head the other side and another adjoining ear near and below.
Embodiment may include one or any combination of them in following features.Neck ring can have outer wall, and
One sound outlet opening can be limited in the outer wall of neck ring, and second sound exit opening can be limited at the outer wall of neck ring
In.Neck ring can have the top when being worn by user towards ear, and the first sound outlet opening can be limited at neck
In the top of ring, and second sound exit opening can be limited in the top of neck ring.Waveguide can by neck ring outer wall and
The inner wall of neck ring limits.
Embodiment may include one or any combination of them in following features.Neck ring can be substantially " u "-shaped, tool
There are central part, first leg part and the second leg portion, first leg part and the second leg portion are under central part
It hangs down and has and be spaced apart to limit the distal end of the open end of neck ring.First acoustic driver can be located at first of neck ring
In leg section, and the second acoustic driver can be located in the second leg portion of neck ring.First sound outlet opening can be located at
In second leg portion, and second sound exit opening can be located in first leg part.The sound device can further include low
Resistance sieve, low resistance sieve are located in the waveguide between the rear portion and sound exit opening of energy converter.The sieve can be located at energy converter
Dead astern.Neck ring can further include the acoustic volume between waveguide and the rear portion of energy converter, and wherein pressure damping elements can
It is acoustically coupled to the acoustic volume.
In yet another aspect, a kind of audio unit includes neck ring, which is constructed and arranged to around worn
Neck ring, the neck ring include the first acoustic waveguide with the first sound outlet opening and the rising tone with second sound exit opening
Waveguide, wherein first wave guide and second waveguide neck ring it is at least some in side by side.In the presence of being acoustically coupled to the of first wave guide
One after-opening formula acoustic driver, and it is acoustically coupled to the second after-opening formula acoustic driver of second waveguide.Each waveguide tool
There is first end to be located at the side on head and the acoustic driver below adjoining ear accordingly with it, and each waveguide has
Have a second end, second end leads to its sound outlet opening, positioned at head the other side and below another adjoining ear.It deposits
In the first pressure attenuating elements for being acoustically coupled to first wave guide, wherein first pressure attenuating elements are constructed and arranged to decay
One or more acoustic resonances in first wave guide, and the second pressure attenuating elements of second waveguide are acoustically coupled to, wherein the
Two pressure damping elements are constructed and arranged to one or more acoustic resonances in decaying second waveguide.
Embodiment may include one or any combination of them in following features.Waveguide can at least partly by
The outer wall of neck ring and the inner wall of neck ring limit.First and second pressure damping elements can respectively include at least one of the following:
Foam, the foam have at least some closed pores；Waveguide wall opening, the resistance structure of the waveguide wall opening cover wall opening or in walls
In opening；With shunting waveguide.
Detailed description of the invention
Fig. 1 is a kind of top perspective of sound device.
Fig. 2 is the top perspective for the sound device worn by user.
Fig. 3 is the right side view of the sound device.
Fig. 4 is the front view of the sound device.
Fig. 5 is the rearview of the sound device.
Fig. 6 is the internal diaphragm of the shell of the sound device or the top perspective of wall.
Fig. 7 is the first cross-sectional view of line 7-7 interception of the sound device in Fig. 1.
Fig. 8 is the second cross-sectional view of line 8-8 interception of the sound device in Fig. 1.
Fig. 9 is the third cross-sectional view of line 9-9 interception of the sound device in Fig. 1.
Figure 10 is the schematic block diagram for a kind of electronic device of sound device.
Figure 11 is the curve graph of the sound pressure level at the ear of dummy head, and wherein the driver of the sound device was both same
It is driven out of phase again to driving.
Figure 12 A is the high-level schematic of the sound device with the losser for inhibiting undesirable resonance.
Figure 12 B is the amplification partial schematic diagram of losser.
Figure 13 shows the relationship of an exemplary sound pressure level and frequency of the waveguide for sound device.
Figure 14 schematically shows the losser of the alternative type in the waveguide of sound device.
Figure 15 shows the relationship of another exemplary sound pressure level and frequency of the waveguide for sound device.
Specific embodiment
The sound device guides high quality sound to ear, without directly contacting ear, and will not stop environment
Sound.The sound device is inconspicuous, and can be worn at below clothes (if clothes is acoustically sufficiently transparent) or
It is worn on above clothes.
In one aspect, which is constructed and arranged to around worn.It includes outer that the sound device, which has,
The neck ring of shell.Neck ring has similar horseshoe-shaped shape, and two supporting legs are located at the over top of the trunk of neck either side, and
Curved central part positioned at neck rear.There are two acoustic drivers for equipment tool, respectively have on each supporting leg of shell
One acoustic driver.Driver is located at below the desired location of user's ear, and acoustic axis is directed toward ear.The sound device
Also for tool there are two waveguide, each waveguide all has the outlet below ear, close to driver inside the shell.One driver
The back side is acoustically coupled to the entrance of a waveguide, and the back side of another driver is acoustically coupled to entering for another waveguide
Mouthful.Each waveguide has an end, is located at below an ear (left or right side) for the driver of the end-feed, and
Another end (open end) below another ear (right side or left side).
One non-limiting example of the sound device is shown in the accompanying drawings.This only illustrates many of theme sound device
One in possible example.The scope of the present invention is not limited by this example, but is supported by the example.
(Fig. 1 to Fig. 9) includes the shape of a hoof (alternatively, substantially " u "-shaped) neck ring 12, shape, construction and cloth to sound device 10
The worn made it possible to around people is set, such as shown in Fig. 2.Neck ring 12 has the bending at the nape of neck " N "
Central part 24 and right side supporting leg 20 and left side supporting leg 22, they are sagging from central part 24 and are constructed and arranged to
Be covered on above upper torso in neck either side, substantially above the clavicle " C " or near.Fig. 3 to Fig. 5 shows help sound
The integral form that is cosily sagging and cosily placing on neck and upper breast region of equipment 10.
Neck ring 12 includes shell 13, and shell is substantially elongated (solid or flexible) almost hollow solid plastic
It manages (except voice entry and exit opening), there is closed distal end 27 and 28.By integral wall (diaphragm) inside shell 13
102 separate.Two inner waveguides are limited by the outer wall and diaphragm of shell.Shell 13 should be hard enough, so that sound is passing through waveguide
When will not substantially weaken.In this non-limiting example, end 27 and the left side neck ring supporting leg 22 of right side neck ring supporting leg 20
Lateral distance " D " between end 28 is less than the width of typical human body neck, the neck ring also need it is sufficiently flexible so that working as equipment
10 when being worn and taking end 27 and 28 can be unfolded, rest shape shown in figure will be returned to later.With suitable
One of many possible materials of physical property be polyurethane.Other materials can be used.In addition, other can be used in the equipment
Mode construct.For example, device housings can be partially fabricated by multiple separate, these parts for example using fastener and/
Or adhesive links together.Also, neck ring supporting leg does not need to be arranged such that work as to be placed on the equipment behind neck simultaneously
And they need to be unfolded when being covered on upper breast for branch.
The carrying of shell 13 right side acoustic driver 14 and left acoustics driver 16.Driver is located at the top surface of shell 13
30, and below the desired location of ear " E ".Referring to fig. 2.Shell 13 has lower surface 31.Driver can be as schemed institute
Show inclination or angled (backward) backward, may such as need the acoustic axis (not shown) of driver being positioned approximately in wearing
The desired location of person/user ear.Driver can make the desired location of its acoustic axis direction ear.Each driver can be with
Desired location about 10cm apart from nearest ear, and the about 26cm (distance of the desired location apart from another ear
It is to be measured using the flexible-belt for extending to farthest ear below chin).Lateral distance between driver is about
15.5cm.This arrangement causes the sound pressure level (SPL) for carrying out output from driver at closer ear than about three times of another ear,
This helps to maintain channel separation.
It is close and at driver rear and in the top exterior walls of shell 13 30 be just waveguide outlet 40 and 50.
Outlet 50 is the outlet of waveguide 110, and the entrance of the waveguide is at the rear portion of right driver 14.Outlet 40 is the outlet of waveguide 160,
The entrance of the waveguide is at the rear portion of left side drive 16.Referring to Fig. 7 to Fig. 9.Therefore, every ear is directly from driver
Front receives output, and receives and export from the rear portion of another driver.If driver is driven out of phase, every ear is connect
Two acoustic signals received are practically at basic waveguide quarter-wave resonant frequency same phase below, unrestricted at this
It is about 130Hz to 360Hz in property example.This ensures the low frequency spoke of the correspondence waveguide outlet from each driver and same side
It penetrates with phase and will not cancel out each other.Meanwhile the radiation from opposite side driver and corresponding waveguide is out-phase, to provide
It offsets in far field.This can reduce from the sound device to nearby other people sound overflow.
Sound device 10 includes right side and left side button set or part enclosure lid 60 and 62；Button set is can to limit or prop up
Support the casing of the various aspects of the User's Interface of equipment, such as volume button 68, power knob 74, control button 76 and exposure wheat
The opening 72 of gram wind.When it is present, microphone allows equipment for carrying out call (such as headphone).It can be according to need
It to include other buttons, sliding block and similar control.User's Interface can be configured and positioned to that user is allowed easily to grasp
Make.Each button can have unique shape and position, to allow to identify in the case where not checking button.Electronic device lid
Lower section is covered positioned at button.The printed circuit board for carrying hardware necessary to the function of sound device 10 and battery is located at lid lower section.
Shell 13 include two waveguides, 110 and 160.Referring to Fig. 7 to Fig. 9.Sound enters from the rear of driver/lower section
Each waveguide extends downwardly into the end of supporting leg from the top surface of the neck ring supporting leg where driver, rotates in the end of supporting leg
180 ° and the bottom surface of shell is turned down to, extends supporting leg back along the bottom surface of shell.Waveguide continues on neck ring
Central part first part bottom surface.Then Wave guide twist, so that being returned at or near the end of the central part of neck ring
Return to the top surface of shell.Waveguide terminates at the exit opening at the top of another supporting leg of neck ring, close to another driver.
Waveguide is formed by the space between the outer wall and internal integrated diaphragm or wall 102 of shell.Diaphragm 102 (is shown as and shell point in Fig. 6
Open) be general planar integral inner shell wall, with right side supporting leg 130, left side supporting leg 138, right-hand end 118, left side
End 140 and 180 ° of center twist part 134.Diaphragm 102 also has curved roll steer device 132 and 136, and guidance comes from wave
That leads is parallel to the sound of housing axis extension makes upwardly through the exit opening in the housing top being located above diverter
Sound is obtained to be directed to be approximately towards an ear.
The first part of waveguide 110 is shown in Figure 7.Waveguide entrance 114 be located at the rear portion 14a of acoustic driver 14 just after
Side, the acoustic driver have the positive 14b for the desired location for being directed toward auris dextra.The downward supporting leg 116 of waveguide 110 is located at diaphragm
102 tops and 30 lower section of roof/top for being located at shell.Turning part 120 is limited at end 118 and the shell of diaphragm 102
Between 12 closed circle end 27.Then, waveguide 110 continues in the upward part 122 of waveguide 110 below diaphragm 102.
Then, waveguide 110 extends below diverter 133, which is a part (referring to waveguide portion 124) of diaphragm 102,
There waveguide is redirected into center housing section 24.How Fig. 8 and Fig. 9 shows two identical waveguides 110 and 160 along outer
The central part of shell extends and is folded each other or overturns inside it so that each waveguide start in the top section of shell and
Terminate.This allows each waveguide to be coupled to the rear portion of a driver in a supporting leg of neck ring, and makes its outlet another
Cover top portion in one supporting leg, close to another driver.Fig. 8 and Fig. 9 also shows the second end 140 of diaphragm 102, and
The arrangement of waveguide 160, the waveguide are extended downwardly since 16 rear of driver along the top of supporting leg 22, it is turned to there
The bottom of supporting leg 22 and extend up to supporting leg 22 in central part 24.Waveguide 110 and 140 is substantially mutual mirror
Picture.
In a non-limiting example, each waveguide has roughly the same cross-sectional area along its whole length, including
About 2cm2General toroidal exit opening.In a non-limiting example, each waveguide has in about 22cm to 44cm's
Total length in range；In a specific example, very close 43cm.In a non-limiting example, waveguide is foot
It is enough long, to establish resonance at about 150Hz.More generally, the principal dimensions of sound device are (for example, waveguide length and cross section
Product) mainly determined by ergonomics, and acoustic response appropriate and function are ensured by Audio Signal Processing appropriate.Also
Other waveguide arrangement, shape, size and length is contemplated within the scope of this disclosure.
The exemplary but non-limiting example of electronic device for the sound device is shown in FIG. 10.In the example
In, which is used as wireless head-band earphone, can be wirelessly coupled to smart phone or different audio-sources.PCB 103 is carried
Microphone 164 and microphone processing.Antenna receives audio signal (for example, music) from another equipment.Support Bluetooth wireless communication
Agreement (and/or other wireless protocols).User's Interface can using but do not need as the part of both PCB 103 and PCB 104
Carrying.System on chip generates audio signal, which is amplified and is supplied to the amplification of the L and R audio on PCB 104
Device.Amplified signal is sent to left side energy converter (driver) 16 and right hand transducer (driver) 14, as described above, it
Be after-opening formula acoustic driver.Acoustic driver can have the diameter of 40mm and the depth of 10mm, but not need have this
A little dimensions.PCB 104 also carries the battery charger connecting with rechargeable battery 106, and rechargeable battery mentions for sound device
For all electric power.
Figure 11 shows SPL of the above sound equipment at an ear.Curve 196 indicates that driver is driven out of phase,
Curve 198 indicates driver by driven in phase.In about 150Hz hereinafter, out-phase SPL is higher than driven in phase.In 60Hz to 70Hz's
Under low-limit frequency, the gain of driven out-of-phase is up to 15dB.Identical effect occurs in the frequency range of about 400Hz to about 950Hz
Fruit.In the frequency range of 150Hz to 400Hz, it is higher than out-phase SPL with phase SPL；It is optimal in order to be obtained in the frequency range
Phase difference between left and right acoustic channels should be flipped back to zero by drive performance.In a non-limiting example, using with limited
The so-called all-pass filter of phase variable slope realizes the phase difference between sound channel.These provide gradual phase change rather than can
The unexpected phase change that can have an adverse effect to audio reproduction.This allows the benefit of Selecting phasing appropriate, ensures simultaneously
The power efficiency of sound device.In 1KHz or more, due to lacking correlation between the sound channel of upper frequency, between left and right acoustic channels
Influence of the phase difference to SPL is much smaller.
The waveguide of theme sound device is resonant structure.It may be it is advantageous that in the acoustics for retaining enhancing sound device
Inhibit one or more undesirable resonance while the resonance of performance.It can be subtracted by introducing resistance loss source into waveguide
Few formant.Resistance loss element can reduce undesirable peak and decline in equipment output, keep equipment output more predictable
Property and higher power efficiency.
Losser may cause one or both of speed loss and pressure loss.The example packet of speed losser
The material for including but be not limited to provide the resistance to air flowing, including with aperture foam, glass fibre, wool or it is any its
He is open villus, and the weaving sieve of the resistance made of fabric, plastics, metal or other materials.Speed losser will be different
Reduce to degree the output level of sound energy of waveguide on a different frequency.This can be offset by increasing the acoustic pressure in waveguide, but this
It is not always feasible.Therefore, optimal broadband waveguide performance may only be cannot achieve by speed losser.
Pressure loss element is the impedor positioned at the region with high pressure of waveguide, such as resonance to be decayed
Maximum pressure at.Pressure loss element, which generates, shunts speed, helps to reduce undesirable high pressure mode.Pressure loss element
Non-limiting example include the inner wall against waveguide or the closed-cell foam that positions in the waveguide far from wall, and be lined with
Similar to the wall opening of any resistance sieve of speed losser, net or villus.
There is the practical sound device for inhibiting undesirable resonance in order to design, losser should be introduced, so that they press down
Undesirable mode is made, while making to minimize the influence of desired pattern.This can be by introducing especially choosing for losser
The waveguide position selected and/or by using itself being that there is the resonant structure of required resonant frequency and be placed on them at those
Losser at frequency at effective position is realized.Some lossers can only realize one in these targets, and
The two may be implemented in other lossers, as described further below.
Figure 12 A schematically shows the sound device 220 including acoustic waveguide 222 and 224.Energy converter 232 is located at waveguide
One open end of 222 pipe 230.Pressure loss element 236 is located at the about quarter-wave of the other end 234 apart from pipe 230
Long (λ1/ 4) at (at frequency to be decayed).Energy converter 242 is located at an open end of the pipe 240 of waveguide 224.Pressure loss
Element 246 is located at the 244 quarter-wave (λ of the other end apart from pipe 2402/ 4) at (at frequency to be decayed).Figure 12 B is
One exemplary partial enlarged view of pressure loss element 236 utilizes the opening 233 in the wall 231 of pipe 230 to realize, by
Resistance element (for example, foam, villus, sieve and/or net) 235 supports.Resistance element 235 can alternatively be located in opening 233
Or it is positioned over the inside of the wall 231 of opening 233.In other alternate configuration, pressure loss element 236 or 246 may include
Material as the lining of waveguide inner surface in whole or in part.
Figure 13 shows the relationship of exemplary output sound pressure level (SPL) (as unit of a dB) and frequency of waveguide 222.
Radiation from 232 front of energy converter is described by curve A, and the radiation from waveguide openings end 234 is described by curve B.It is bent
Line A and B are shownNoOutput in the case where pressure loss element, and curve A ' and B ' show Figure 12 A'sHavePressure
Output in the case where losser 236.
Waveguide, which exports the frequency of (curve B) in 700Hz or more, has multiple resonance.In order to inhibit 1300Hz resonance (most
Peak value), pressure loss element 236 is needed positioned at from the about 6.5cm of waveguide openings end 234, (6.5cm corresponds to about 27cm's
1300Hz wavelength in air about 1/4).Resistance (impedance) value of selection losser 236 (passes through the material of pressure loss element
The size for any opening for including in material and/or pressure loss element) to generate maximum suppression to 1300Hz mode, while at it
He has acceptable loss at frequency.Required resistance value is to reduce pressure peak to have minimum shadow to other waveguide modes simultaneously
Loud resistance value.The resistance value depends, at least partially, on waveguide geometry shape and audio Systematic Design requirement, and can lead to
It crosses experiment or is determined by audio system simulation.
In the example depicted in fig. 13,1300Hz mode is suppressed more than 25dB, and about 1dB is only lost at 100Hz.The knot
Fruit is the direct result of the selective spatial position of loss resistance.Another benefit of pressure loss element is, in pressure loss
All standing waves that pressure peak is generated at the position of element 236 are also suppressed.In this example, it is observed at 700Hz and 2KHz
To inhibition.It, can be in the Pressure maximum value for being directed to each frequency in order to inhibit other resonant frequencies (such as at about 2.5KHz)
Position at the one or more additional pressure loss elements of installation.Similar result is generated in waveguide 224 (not show in Figure 13
Out).In a non-limiting example, three or four pressure loss elements can be used.
It may be noted that if pressure loss element is mounted on high pressure position but is not necessarily mounted at maximum pressure position,
It can make any difference.In addition, these elements may be mounted at than shown in Figure 12 A closer at the Pressure maximum value of energy converter,
But if they are closest to the open end of waveguide, then effect is obvious.
Figure 14 schematically shows an example of the pressure loss element with both space and frequency characteristic.Pressure
Loss short tube 260 is that (one end has energy converter 254, and the other end 256 opens for open pipe in the pipe 252 of waveguide 250
Mouthful).Short tube 260 is used as small bore and shunts waveguide.Short tube 260 preferably but is not necessarily located near main waveguide openings end 256.
Short tube 260, which is constructed, arranged and is positioned at the resonant frequency to be inhibited, generates low z impedance.It is open 262 greatly
Cause the position for being located at the Pressure maximum value of the resonant frequency.Short tube 260 is preferably passed into (that is, being acoustically coupled to) main waveguide 252,
But it can be inside or outside waveguide 252.The other end 264 of short tube 260 be resistive (speed) load (for example,
With resistive element 266, foam, metal mesh, fabric web, sieve and/or villus can be in a non-limiting example).Selection
The value of the ohmic load of short tube 260, so that the bandwidth of the impedance minimum of short tube 260 is approximately equal to or slightly greater than the band at waveguide peak
It is wide.
As shown in figure 14, if short tube 260 is parallel to main waveguide 252 and is aligned, the open end of two waveguides can be same
In one plane 268.In this case, the length of short tube 260 will be equal to about 1/4 of the wavelength of sound at the frequency to be inhibited
(λ/4).The area of short tube 260 is generally much less than the area of main waveguide 252, for actual purpose, usually small about 5% to 10% or
It is smaller.Short column 260 can be constructed by suitable plastic material, which can be and material phase that main waveguide 252 is made
Same material or any other suitable material.
Figure 14 also shows the optional pressure loss element 257 in the subsequent volume 255 of energy converter 254.255 acoustics of volume
It is coupled to main waveguide 252.In the non-limiting example, element 257 is similar to the pressure loss element 236 of Figure 12 B, and can
To include the opening in the wall of volume 255, supported by resistive element.Pressure loss element 257 can be alternatively with herein
The mode described elsewhere is realized, positions closed-cell foam against the inner wall of volume 255, or in volume 255 far
From inner wall.Pressure loss element 257 will reduce the acoustic pressure of driving waveguide 252, therefore will have an impact to all modes.Pressure damage
Resonance peak effectively can be reduced the first amount (for example, about 3dB) and lower frequency is reduced small amount by consumption element 257
(for example, about 1dB).For example, element can be used when being difficult to be placed on losser in main waveguide or in main waveguide
257。
Figure 15 shows the relationship of exemplary output SPL (dB) and frequency of the waveguide 250 of Figure 14.From energy converter
The radiation of 254 fronts is described by curve A, and the radiation from waveguide openings end 256 is described by curve B.Curve A and B are shown
Output in the case where not having pressure loss short tube/shunting waveguide 260.Curve B ' show with pressure loss short tube/
Output from open end 256 in the case where shunting waveguide 260.
In this example, short tube is oriented to make its opening at away from main waveguide openings end about 6.5cm, and has about
The length of 6.5cm (this is sound wave is long at 1300Hz about 1/4).Undesirable peak at about 1300Hz is suppressed about 15dB,
And other most of resonance are kept substantially without interruption.It therefore, can be with when needing to inhibit single undesirable resonance mode
Using the pressure loss element with both space and frequency characteristic, pressure loss element shown in such as Figure 14.
Sound device can include pressure loss or dual loss as one or more in one or two waveguide
Element (that is, pressure loss element with both space and frequency characteristic), to improve acoustical behavior.
One of sound device of the invention be potentially prone to it have in the shell there are two opening, the end of each waveguide
There is one.Sand, dust and other particles can be entered by these openings.These particles can interfere the behaviour of the sound device
Make.For example, particle can block in the small―gap suture between voice coil and magnet, which can be as small as about 0.3mm.Therefore, it changes
The appropriate operation of energy device may be influenced by foreign particle.It is used by the somewhere between the energy converter back side and waveguide openings
Low resistance sieve (it is used as speed losser), can prevent particle from reaching energy converter.In order to inhibit to be lost from this speed
The SPL of element is lost, which should be located at speed minimum value, or position at least low in volume velocity.One possible position is
Energy converter dead astern, there speed is low, as shown in the sieve 272 of Figure 14.Ideally, the opening of sieve should be less than voice coil and be protected
Gap between the magnet of the energy converter of shield.
The embodiment of the systems and methods includes that will become apparent to computer portion for those skilled in the art
Part and computer implemented step.For example, it will be appreciated by those skilled in the art that computer implemented step can be used as calculating
Machine executable instruction may be stored on the computer-readable medium, such as, for example, floppy disk, hard disk, CD, flash rom, non-volatile
ROM and RAM.In addition, it will be appreciated by those skilled in the art that computer executable instructions can execute on various processors,
Such as, for example, microprocessor, digital signal processor, gate array etc..For ease of description, the systems and methods are not
Each step or element are described as a part of computer system herein, but those skilled in the art will recognize that
It can have corresponding computer system or component software to each step or element.Therefore, by describing its step corresponded to
Or element (that is, their function) realizes such computer system and/or component software within the scope of this disclosure.
Multiple specific implementations have been described.It will be appreciated, however, that in the range for not departing from inventive concepts described herein
In the case of, it can will be further modified, therefore, other embodiments are also within the scope of the appended claims.
Claims (23)
1. a kind of sound device, comprising:
Neck ring, the neck ring are constructed and arranged to around worn, and the neck ring includes having the first sound outlet opening
The first acoustic waveguide, and the second acoustic waveguide with second sound exit opening；
First after-opening formula acoustic driver, the first after-opening formula acoustic driver are acoustically coupled to the first wave guide；
Second after-opening formula acoustic driver, the second after-opening formula acoustic driver are acoustically coupled to the second waveguide；
First pressure attenuating elements, the first pressure attenuating elements are acoustically coupled to the first wave guide, wherein described first
Pressure damping elements are constructed and arranged to decay one or more acoustic resonances in the first wave guide；With
Second pressure attenuating elements, the second pressure attenuating elements are acoustically coupled to the second waveguide, wherein described second
Pressure damping elements are constructed and arranged to decay one or more acoustic resonances in the second waveguide.
2. sound device according to claim 1, wherein the first pressure attenuating elements are being directed to be decayed first
The first wave guide is acoustically coupled at the first position of the Pressure maximum value of wavelength, and the wherein second pressure decaying member
Part is acoustically coupled to the second waveguide in the second place of the Pressure maximum value for second wave length to be decayed.
3. sound device according to claim 2, wherein the first position away from first sound outlet be open away from
From the about a quarter for the first wave length, and wherein distance of the second position away from the second sound exit opening
For the about a quarter of the second wave length.
4. sound device according to claim 1, wherein the first pressure attenuating elements and second pressure decaying
Element includes at least one of the following: foam, and the foam has at least some closed pores；Waveguide wall opening, the wave guide wall
There is opening resistance structure to cover the wall opening or in the wall opening；With pressure loss short tube.
5. sound device according to claim 1, wherein the first pressure attenuating elements and second pressure decaying
At least one of element includes shunting waveguide.
6. sound device according to claim 5, wherein the shunting waveguide includes the pipe in both ends open, the pipe
One end is located at the inside of the first wave guide or the second waveguide or is directly coupled to the first wave guide or second wave
It leads, and there is the resistance structure being located at the other end or near the other end.
7. sound device according to claim 6, wherein the other end of the pipe is located at the first wave guide or institute
It states in second waveguide, is open in same plane with the sound outlet of the waveguide.
8. sound device according to claim 7, wherein the pipe has the wavelength equal to acoustic resonance to be decayed
About a quarter length.
9. sound device according to claim 1, wherein first acoustic driver and second acoustic driver
It is driven, so that they issue the sound of out-phase.
10. sound device according to claim 1, wherein first acoustic driver is carried and had by the neck ring
There is the first acoustic axis of the desired location for an ear for being pointed generally in user, and second acoustic driver is by institute
State the second acoustic axis that neck ring carried and had the desired location for the another ear for being pointed generally in the user.
11. sound device according to claim 10, wherein first sound outlet opening is located at second acoustics
Near driver, and the second sound exit opening is located near first acoustic driver.
12. sound device according to claim 1 drives wherein first sound outlet opening is located at second acoustics
Near dynamic device, and the second sound exit opening is located near first acoustic driver.
13. sound device according to claim 12, wherein the correspondence acoustic driver of one end of each waveguide is located at head
The side in portion and adjoining ear near and below, and the other end lead to its sound outlet opening, positioned at the head
The other side and another adjoining ear near and below.
14. sound device according to claim 1, wherein the neck ring has outer wall, the first sound outlet opening
It is limited in the outer wall of the neck ring, and the second sound exit opening is limited at the described outer of the neck ring
In wall.
15. sound device according to claim 14, wherein the neck ring has when being worn by user towards described
The top of ear, and wherein the first sound outlet opening is limited in the top of the neck ring, and described
Second sound exit opening is limited in the top of the neck ring.
16. sound device according to claim 14, wherein the waveguide is by the outer wall of the neck ring and described
The inner wall of neck ring limits.
17. sound device according to claim 1 has central part, first wherein the neck ring is usually " u "-shaped
Leg portion and the second leg portion, the first leg part and second leg portion are sagging simultaneously from the central part
And has and be spaced apart to limit the distal end of the open end of the neck ring；
Wherein first acoustic driver is located in the first leg part of the neck ring, and second acoustics drives
Dynamic device is located in second leg portion of the neck ring；And
Wherein the first sound outlet opening is located in second leg portion, and second sound exit opening position
In the first leg part.
18. sound device according to claim 1 further includes low resistance sieve, after the low resistance sieve is located at energy converter
In waveguide between portion and sound outlet opening.
19. sound device according to claim 18, wherein the sieve is located at the energy converter dead astern.
20. sound device according to claim 1, wherein the neck ring further includes described in the waveguide and the energy converter
Acoustic volume between rear portion, and wherein pressure damping elements are acoustically coupled to the acoustic volume.
21. a kind of sound device, comprising:
Neck ring, the neck ring are constructed and arranged to around worn, and the neck ring includes having the first sound outlet opening
The first acoustic waveguide, and the second acoustic waveguide with second sound exit opening, wherein the first wave guide and described second
Waveguide the neck ring it is at least some in side by side；
First after-opening formula acoustic driver, the first after-opening formula acoustic driver are acoustically coupled to the first wave guide；
Second after-opening formula acoustic driver, the second after-opening formula acoustic driver are acoustically coupled to the second waveguide；
Wherein each waveguide has first end corresponding with its positioned at the side on head and the acoustics below adjoining ear drives
Dynamic device；
Wherein each waveguide has the second end for leading to its sound outlet opening, and the second end is located at the other side on the head
And below another adjoining ear；
First pressure attenuating elements, the first pressure attenuating elements are acoustically coupled to the first wave guide, wherein described first
Pressure damping elements are constructed and arranged to decay one or more acoustic resonances in the first wave guide；With
Second pressure attenuating elements, the second pressure attenuating elements are acoustically coupled to the second waveguide, wherein described second
Pressure damping elements are constructed and arranged to decay one or more acoustic resonances in the second waveguide.
22. sound device according to claim 21, wherein the waveguide is at least partly as described in the neck ring
Outer wall and the inner wall of the neck ring limit.
23. sound device according to claim 21, wherein the first pressure attenuating elements and the second pressure decline
Subtracting element includes at least one of the following: foam, and the foam has at least some closed pores；Waveguide wall opening, the waveguide
There is wall opening resistance structure to cover the wall opening or in the wall opening；With shunting waveguide.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/150,700 | 2016-05-10 | ||
| US15/150,700 US9736574B2 (en) | 2014-07-18 | 2016-05-10 | Acoustic device |
| PCT/US2017/031032 WO2017196631A1 (en) | 2016-05-10 | 2017-05-04 | Acoustic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109155882A true CN109155882A (en) | 2019-01-04 |
Family
ID=58993189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780029055.7A Pending CN109155882A (en) | 2016-05-10 | 2017-05-04 | sound device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3456066A1 (en) |
| JP (1) | JP2019515590A (en) |
| CN (1) | CN109155882A (en) |
| WO (1) | WO2017196631A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102614578B1 (en) | 2019-09-06 | 2023-12-18 | 삼성전자주식회사 | Sound outputting apparatus and display device having the same |
| WO2024004089A1 (en) * | 2022-06-29 | 2024-01-04 | 日本電信電話株式会社 | Acoustic signal output device |
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- 2017-05-04 EP EP17727428.9A patent/EP3456066A1/en not_active Withdrawn
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| CN1670819A (en) * | 2004-03-19 | 2005-09-21 | 伯斯有限公司 | Acoustic waveguiding |
| CN1870835A (en) * | 2005-05-27 | 2006-11-29 | 伯斯有限公司 | Supra-aural headphone noise reducing |
| GB2517486A (en) * | 2013-08-22 | 2015-02-25 | Kwame Corp Ltd | Headphone Apparatus |
| US20160021449A1 (en) * | 2014-07-18 | 2016-01-21 | Bose Corporation | Acoustic Device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3456066A1 (en) | 2019-03-20 |
| WO2017196631A1 (en) | 2017-11-16 |
| JP2019515590A (en) | 2019-06-06 |
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