TWM464955U - Wearable sound amplification apparatus for the hearing impaired - Google Patents

Description

Wearable loudspeaker for hearing impaired

The present invention relates to a wearable sound reinforcement device and a hearing aid accessory for a hearing impaired person.

Wearable loudspeakers for the hearing impaired are helpful for people with hearing impairments and are often referred to as hearing aids. A typical hearing aid includes an earpiece on which is mounted a microphone for collecting ambient sound and an amplifier for amplifying the collected sound. However, the sound quality of existing hearing aids for the hearing impaired is not satisfactory.

Various sound quality improvement techniques have been proposed to improve the sound quality of hearing aids for the hearing impaired.

For example, WO 97/40645 discloses a necklace-shaped directional sound receiving system comprising an array of microphones mounted on a housing on the chest of a user. This system requires audio distribution from the microphone and the sound quality is still unsatisfactory.

WO 2007/052185 discloses a hearing aid system in which a plurality of sound detectors are mounted on the sides and the front of the eyeglass frame. The system is heavy, bulky, and complex in structure, and is difficult to promote to the public.

HK1101028A is the same as the creator of the present invention, which discloses a hearing aid system for a hearing impaired person, the hearing aid system comprising a pair of ear fixing members, each ear fixing member comprising a housing having a housing for attachment The curved portion of the curved portion is behind the user's ear. A microphone is mounted at the lower end of the housing, and the sound collected by the pair of microphones is processed by an external signal processor using beamforming techniques. However, the device is bulky, the sound quality is unsatisfactory, and the two components need to be worn at the same time to work as designed. It would be very beneficial if a wearable loudspeaker for improved hearing impaired could be provided.

The present invention provides a wearable sound amplifying device for a hearing impaired person, comprising a first ear piece for attaching to a first ear of a user, a second ear piece for attaching to a second ear of the user, and a first sound collector to which the first ear piece is connected, a second sound collector connected to the second ear piece, and a sound processing device; wherein each of the first sound collector and the second sound The collector is adapted to collect sounds around the user and is adapted to output the collected ambient sound for processing by the sound processing device; the sound processing device comprising for receiving and processing collected by the first sound And a second sound collector utilizing a diversity sound collected by a diversity technique such as a beamforming technique, and for subsequently passing or by means of one or both of the first earpiece and the second earpiece The audio signal is output to the user's device; the sound collector is adapted to follow the user's head movement as the user's head is rotated relative to the body.

The present invention also provides a hearing aid accessory for use with a sound processing device having a diversity processing capability such as beamforming for providing sound amplification to a hearing impaired person, the hearing aid accessory including for attachment to a first ear piece on the first ear of the user, a second ear piece attached to the second ear of the user, a first sound collector connected to the first ear piece, and the second ear piece a second sound collector coupled thereto, and a sound processing device; wherein each of the first sound collector and the second sound collector is adapted to collect sound around the user and is adapted to output the collected surrounding sound For processing by the sound processing device; the sound processing device includes for receiving and processing diversity sound collected by the first sound collector and the second sound collector using a diversity technique such as beamforming techniques a sound processor, and means for outputting an audio signal to the user through or by one or both of the first earpiece and the second earpiece When the user's head is rotated relative to the body, the sound collector is adapted to follow the movement of the user's head.

The novel loudspeaker or hearing aid accessory has a diversity sound collector adapted to move in unison with the user's head, which means that the sound collector's sound collection direction is substantially the same as the direction the user is facing, thus It is possible to eliminate the disadvantages of the existing type of sound-amplifying device for the hearing-impaired person, and to reduce the head movement and the sound collecting direction of the existing hearing-improving device for the hearing-impaired person using beamforming or other diversity signal processing. Inconvenience and embarrassment caused by a straight line.

For example, the first sound collector may be coupled to the first ear piece by a first flexible signal line and the second sound collector may be coupled to the second ear piece by a second flexible signal line.

The first sound collector and the second sound collector, which are an example of a diversity sound collector, provide spatial diversity to facilitate beamforming processing of surrounding signals, enhancing signal quality for the hearing impaired.

In one example, in use, the sound collector is hung or suspended under the respective earpiece for sound collection, the sound collector being arranged such that when the user's head is relative to the user's body When rotated, the movement of the sound collector is not blocked by the user's body. This arrangement allows the sound collector to be consistent with the movement of the user's head, ears, etc., while collecting the surrounding sound in the direction the user is facing.

In one example, in use, the sound collector is hung or hung below the corresponding earpiece for sound collection. Since the sound collector is freely suspended from the shoulder area of the user, the sound collector can freely follow the user's head or ear movement to reduce the direction in which the ear faces and the sound collector's sound collection direction are not in the same line. problem.

The flexible signal line is connected between the sound collector and the earpiece, meaning that there are no more ugly hearing aids for the hearing impaired, because the hearing aid accessories look like ordinary wired headphones in others. In addition, the flexible signal line means that the spatial diversity of the first sound collector and the second sound collector, including lateral spacing and angular diversity, can be inadvertently adjusted by the user during the conversation without causing surprise or Impolite gaze.

A hearing aid accessory has a sound collector that hangs or hangs under the earpiece, which is advantageous because the sound collector can follow the user's head rotation to simultaneously collect the surrounding sound as the head rotates. Existing hearing aids using beamforming techniques require a long diversity sound collector array, and a long diversity sound collector array is placed on the user's chest, which means that the direction of the face and chest are different when the head is rotated. A straight line is possible.

In one example, the earpiece is coupled to the sound collector such that when the user's head and shoulder are in relative motion during use, the sound collector's sound collection direction follows the user's head motion.

100, 200, 300, 400, 500, 600, 700, 800‧‧ ‧ hearing aids

110, 410, 610, 710‧ ‧ neck installation

220‧‧‧Bending body

320‧‧‧Flexible subject

520, 820‧‧‧Flexible cable

122, 222, 422, 622, 722‧‧‧ first curved arm

124, 224, 424, 624, 724‧‧‧ second curved arm

126, 226, 326, 426, 526, 626, 726, 826, 128, 228, 328, 428, 528, 628, 728, 828 ‧ ‧ microphone housing

132, 232, 332, 432, 432a, 532, 532a, 632, 632a, 732, 832, 832a‧‧‧ first flexible cable

134, 234, 334, 434, 434a, 534, 534a, 634, 634a, 734, 834, 834a‧‧‧ second flexible cable

136, 236, 336, 436, 536, 138, 238, 338, 438, 538‧‧ ear (audio signal output terminal or adapter)

636, 736, 836, 638, 738, 838 ‧ ‧ headphones

142, 242, 342, 442, 542, 642, 742, 842, 144, 244, 344, 444, 544, 644, 744, 844 ‧ ‧ flexible cable

146, 246, 346, 446, 546, 646, 746, 846‧‧‧ signal connectors

152, 252, 352, 452, 552, 652, 752, 852, 154, 254, 354, 454, 554, 654, 754, 854‧‧

160, 260, 360, 460, 560, 660, 760, 860 ‧ ‧ sound processing devices

1 is a front view of the hearing aid of the first embodiment; FIG. 2 is a schematic view of the hearing aid of FIG. 1 worn and used by a user; FIG. 3 is a schematic view showing the hearing aid of FIG. 1 in a folded state; Figure 3 is a perspective view of the hearing aid of the second embodiment; Figure 5 is a schematic view of the hearing aid of the third embodiment worn and used by the user; Figure 6 is a schematic view of the hearing aid of the fourth embodiment; Figure 7 is a schematic view of a hearing aid for a hearing-impaired person of a fifth embodiment; Figure 8 is a schematic view of another hearing aid for a hearing-impaired person of the sixth embodiment; Figure 9 is a view for a hearing-impaired person of the seventh embodiment Fig. 10 is a schematic view of another hearing aid for a hearing impaired person of the eighth embodiment; Fig. 11 is a schematic view showing the state of use of the hearing aid of Fig. 7; Fig. 12 shows a preferred signal processing of a preferred hearing aid A block diagram of a module; FIG. 13 shows specific details of a preferred signal processing module of a preferred hearing aid; FIG. 14 shows a preferred hearing barrier including the signal processing module of FIGS. 12 and 13. Who used a block diagram of a hearing aid; FIG. 15 shows another preferred hearing aid comprising a signal processing module 12 shown in FIG. 13 and FIG.

The hearing aid shown in Figures 1 and 2 is an embodiment of a wearable sound amplifying device for a hearing impaired person, the wearable sound amplifying device comprising a neck mounting portion 110 having a curved body, the curved body The first bending arm 122 and the second bending arm 124 are included, and a pair of microphone housings 126, 128 respectively provided with microphones are disposed at both ends of the curved body, and the first flexible cable 132 and the second flexible cable 134 are respectively in the microphone housing Body and audio signal output terminal Extending between 136, 138, second flexible cables 142, 144 each extend between the microphone housing and signal connector 146, and the sound processing device 160.

The neck mounting portion 110 is adapted for the user to wear around the back of the neck. The first curved arm 122 and the second curved arm 124 are rigid or semi-rigid such that the distance between the free ends of the ends is substantially fixed. Furthermore, the shape and configuration of the curved body is such that when the curved body is worn by the user, the free ends of the ends are located on substantially the same vertical horizontal line in front of the neck, and the lateral distance between the free ends of the ends is greater than the face of the user width. As shown in Fig. 2, the microphone housing mounted at the free end of the end of the curved body is hung from the front chest of the user near the collarbone. The distance between the microphones is set at 15cm to 18cm for optimum sound output quality.

The curved body can be folded about its central axis and the movable joint about the middle of the curved arm. When the curved arms are folded, the curved body is formed as shown in FIGS. 3 and 3A, which is advantageous for increasing portability and storage.

A condenser microphone as an example of a sound collector is mounted in an injection molded housing. The axes defined by the apertures 152, 154 are substantially perpendicular to the plane defined by the two curved arms on the front of the user. When the curved body is worn by the user and in normal use, the microphone housing defines a forward direction for reference with the hole and the bore axis facing forward together. More specifically, each microphone is disposed within a microphone housing with the sound receiving front of the microphone in communication with the aperture. In other words, for efficient sound collection, the sound collection portion of the microphone is immediately behind the hole.

The surrounding sound collected by the microphone is transmitted to the sound processing device 160 by the flexible cables 142, 144 in the form of electrical signals. Each flexible cable includes two signal channels, wherein the first signal channel is used to transmit the collected signal to the sound processing device for processing, and the second signal channel is used for the audio signal output by the sound processing device 160 by means of the audio signal. Output terminals 136, 138 are transmitted to the user.

The sound collected by the microphone is transmitted to the signal processing portion of the sound processing device for enhancement processing of the sound quality. More specifically, as shown in FIG. 12, the sound processing device 160 is adapted to process sounds collected by spaced microphones using beamforming techniques to achieve spatial diversity, and signals subjected to beamforming processing and noise reduction techniques are further processed to further enhance Sound quality.

Beamforming is a signal processing technique for directional signals in sensor arrays Transmit or receive to achieve spatial diversity. This is accomplished by combining the signals of the sensors spaced apart in the middle of the array, in such a way that signals of a particular angle experience constructive interference while other signals experience destructive interference. In hearing aid applications, beamforming techniques are used on the receiver side to achieve spatial diversity.

In a preferred application, spaced apart microphones are deployed as sound detector arrays that provide signal diversity for beamforming, thereby enabling spatial diversity. In particular, beamforming techniques improve sound reception quality by selecting sounds from the front of the user and filtering out stray sounds from the sides of the user. As a suitable example, the front side is set to a range of ±30° from the user's forward axis. Here, the forward axis is defined as an axis that is perpendicular to the central axis of the body and that extends from the user in the forward direction.

In order to provide suitable spatial diversity for the beamforming audio signal, the microphones are spaced apart by a distance of 15 cm to 18 cm. Such separation distances can produce an enhanced Signal-to-Interference Ratio (SIR) relative to existing hearing aids.

As illustrated in the block diagram of Figure 13, the signal processing portion of the sound processing device is adapted to process signals received by two microphones using fixed beamforming techniques that utilize generalized sidelobe cancellation ( Generalized sidelobe cancellation, GSC) technology. In the first step of generalized sidelobe cancellation, the two signals collected by the two microphones employ a delay-and-sum beamforming algorithm to suppress the interference and approach the desired hearing aid signal. In the second step of generalized sidelobe cancellation, the delay-and-subtract of the received signal by the two microphones approaches a reference interference signal. The delay-added beamforming signal obtained in the first step is used as an input noisy signal, and the delayed subtraction signal is used as a reference interference signal, and an adaptive least mean square (LMS) algorithm is applied to further improve the signal to interference ratio. Then use an Adaptive Noise Cancellation (ANC) algorithm to reduce the background noise to obtain a better signal-to-noise ratio (SNR), so the sound that appears in the user's ear is more Easy to distinguish. As shown in Figure 2, the output of the sound processing device 160 is transmitted to a signal output terminal for transmission to an earpiece.

As shown in FIG. 14, the signal processing section includes beamforming and noise reduction sections, and in addition to the signal processing section, the sound processing apparatus further includes an audio codec (coder-decoder) for inputting the analog signal. Converted to a digital signal and converted the processed digital signal into an analog signal for output. The received signals are all The audio codec transmits and is then forwarded to a digital signal processor for beamforming and noise reduction processing.

In another embodiment as shown in FIG. 15, the sound processing device is equipped with a Bluetooth module as an example of a wireless transceiver to cancel the flexible cable 142, 144 or other corresponding device.

In addition to providing signal processing to the user around the sound, the sound processing device can be equipped with music, radio or other audible sources so that the user can choose to listen to background music or broadcast when needed.

In use, the user wears the hearing aid 100 in the manner shown in Figure 2 with the aperture of the microphone facing forward and the signal output terminal 138 being coupled to an earpiece. After turning on the sound processing device, the sound processing device will process the sound collected by the two microphones and then send the processed sound to the earpiece.

Fig. 4 shows the hearing aid 200 of the second embodiment, except that the curved body 220 is designed such that the second arm can be retracted into the first arm, which is substantially identical to the hearing aid shown in Fig. 1. Such a telescopic arm structure is advantageous because the lateral distance between the microphones is user adjustable by varying the angle of arm expansion and contraction, and the curved body can be retracted for storage and portability. Since the structure of the hearing aid is substantially the same as that of the first embodiment, the description relating to the hearing aid of the first embodiment is referred to herein, wherein the reference numeral is incremented by 100.

Figure 5 shows a hearing aid 300 of a third embodiment, the hearing aid being substantially identical to the hearing aid shown in Figure 1 except that the curved body is replaced by a flexible body 320, the shape of which is irregular, such that the microphone housing The separation distance between the bodies is user adjustable. A flexible body means that a substantial portion of the hearing aid can be hidden under the garment. Since the structure of the hearing aid is substantially the same as that of the first embodiment, the description relating to the hearing aid of the first embodiment is referred to herein, and the reference numeral is added by 200.

Fig. 6 shows a hearing aid 400 of a fourth embodiment which is substantially identical to the hearing aid shown in Fig. 1 except that the microphone housing is not disposed on a rigid or semi-rigid curved body. Conversely, the microphone housing is disposed on a first flexible cable 432 and a second flexible cable 434, respectively, between the signal output terminals 436, 438 and the ends of the corresponding curved bodies. The distance between the microphone housing and the corresponding signal output terminal when in use The microphone housing is brought close to the neck of the user. The flexible mounting method also facilitates the user to adjust the spacing of the microphones. Since the structure of the hearing aid is substantially the same as that of the first embodiment, the description relating to the hearing aid of the first embodiment is referred to herein, wherein the reference numeral is incremented by 300.

Figure 7 shows a hearing aid 500 of a fifth embodiment, which is substantially identical to the hearing aid shown in Figure 6, except that the rigid or semi-rigid curved body is replaced by a flexible cable, which is an example of a flexible signal line. . The flexible cable 520 is formed by a grouped overlapping portion of the first flexible cable 532 and the second flexible cable 534. The overlapping portions of the group are tied together by a pair of knots, so that the length of the overlapping portion can be changed by changing the position of the knot. It should be noted that the distance between the microphone housings can be changed by the user by relatively moving the knot. Since the structure of the hearing aid is substantially the same as that of the fourth embodiment, the description relating to the hearing aid of the fourth embodiment is referred to herein, wherein the reference numeral is incremented by 100.

As shown in FIG. 11, in use, the user wears the hearing aid, and the flexible cable surrounds the neck of the user. In this manner, the flexible cable 520 rests behind the neck, the microphone housing faces forward, and is close to use. The ears and shoulders.

The wearable sound amplifying device used by the hearing impaired person shown in Fig. 8 shows the hearing aid 600 of the sixth embodiment, which is connected with the earphone, except that the signal output terminal is replaced by the earphones 636, 638 to form a complete hearing disorder. The hearing aid is substantially identical to the hearing aid shown in Figure 6, in addition to the wearable loudspeaker. Since the structure of the hearing aid is substantially the same as that of the fourth embodiment, the description relating to the hearing aid of the fourth embodiment is referred to herein, and the reference numeral is added by 200.

The wearable sound amplification device used by the hearing impaired person shown in FIG. 9 shows the hearing aid 700 of the seventh embodiment, the hearing aid being connected with the earphone, except that the microphone housings 726, 728 are disposed at the end of the curved body, The hearing aid is substantially identical to the hearing aid shown in Figure 6. Since the structure of the hearing aid is substantially the same as that of the fourth embodiment, the description relating to the hearing aid of the sixth embodiment is referred to herein, wherein the reference numeral is incremented by 100.

The wearable sound amplifying device used by the hearing impaired person shown in Fig. 10 shows the hearing aid 800 of the seventh embodiment, which is connected with the earphone except that the curved body is a flexible cable in the embodiment shown in Fig. 7. In addition to this, the hearing aid is substantially identical to the hearing aid shown in FIG. Since the structure of the hearing aid is substantially the same as that of the fifth embodiment and the sixth embodiment, The description relating to the hearing aids of the fifth embodiment and the sixth embodiment is referred to herein, wherein the reference numerals are added 300 and 200, respectively, where appropriate.

Since most of the features in the various embodiments are the same, with reference to the serial numbers of the embodiments, the appropriate numbers are implicitly introduced into the respective drawings without loss of generality. Moreover, as a common sound processing device 160 can be used in various embodiments, the sound processor is always marked with the same number without loss of generality.

In the embodiments shown in Figures 1 through 5 and 9, an audio signal output terminal is provided that is associated with each microphone housing. More specifically, a length of flexible cable connects the signal output terminals (including the earpieces) and the corresponding microphone housing. Since each audio signal output terminal receives the audio signal output from the sound processor 160, this configuration gives the user an advantageous choice because the user can flexibly select one or both of the signal terminals.

In the embodiment shown in Figures 6 through 9, an audio signal output terminal is provided, which is associated with each microphone housing. More specifically, a length of flexible cable connects the signal output terminals (including the earpieces) and the corresponding microphone housing. In these embodiments, the position of the microphone housing (and the sound collector herein) is generally predetermined by the length of the flexible cable, although variations in a small range are possible because the lateral distance between the microphones is used Adjustable, due to the flexible connection, the adjustment is based on a corresponding output terminal.

In the embodiment shown in Figures 6, 7, 8, 10 and 11, each microphone is placed or housed in a housing. One end of the microphone housing is connected to one ear piece through a certain length of the first flexible wire line, and the other end of the microphone case is connected to a second flexible signal line, such that the microphone or the microphone case is between the two flexible signal lines. . The first flexible signal line is a single channel signal line. After the signal collected by the microphone is processed by the sound processor, the first signal line is used to transmit the processed audio signal to the earpiece for the user to listen to, the sound processor It is an embodiment of a sound processing device. On the other hand, the second flexible signal line (434, 534, 634, etc.) is a two-channel signal line for transmitting a signal of ambient sound collected by the microphone to the sound processor, and for The microphone housing transmits a sound signal processed by the sound processor to the earphone. Each of the microphone housings in Figures 6, 7, 8, 10 and 11 is located in a flexible letter Between the two parts of the line, and suspended by the user's ear, in this way, when the user turns the head, the microphone housing will follow the user's head movement. With this configuration, the sound collecting direction of the sound collector will follow the direction of the user's head movement, which will reduce the disadvantages of the existing wear-resistant sound-absorbing device for the hearing-impaired person and reduce the existing use of beamforming signal processing. The inconvenience and embarrassment of the wearable sound reinforcement device for the hearing impaired due to the head movement and the sound collection direction are not in a straight line.

In the embodiment illustrated in Figures 6, 7, and 11, the earpiece includes a signal connector or adapter for attaching an ear mounted speaker accessory, while in the embodiment illustrated in Figures 8 and 11, the earpiece includes A headset that is similar to a headset used in a typical mobile phone, smartphone or MP3 player.

In use, the user wears a hearing aid, the earpieces (436, 438, 536, 538, 636, 638, 836, 838) are attached to the ear area of the user, and the microphone housing is suspended below the user's ear, such that The microphone housing will follow the user's head without being blocked by the user's body. In general, this means that the suspension position of the microphone is above the shoulder of the user, and further, the microphone housing is located between the ear and shoulder of the user. When the user turns the head about its body axis, the microphone housing will follow the rotation of the head, thereby collecting sound in the direction the user is facing. When the user wants to fine tune or adjust the diversity sound collection, the user can twist the flexible signal line around the axis of the flexible signal line to change the sound collection direction, and/or shake the sound collector to change their relative distance to adjust the diversity sound collection.

While various embodiments of hearing aid accessories and hearing aids have been described above in conjunction with the drawings, it should be understood that these embodiments are not to be construed as Various improvements can be made without loss of generality within the scope of the disclosure. For example, although fixed beamforming techniques are employed in preferred device signal processing, other beamforming techniques without loss of generality can be employed. As a further example, in various embodiments, although each separate sound collector is coupled to a respective earpiece by a flexible signal line, it should be understood that the sound collector can be attached directly to the earpiece or by rigidity. The extension is attached to the earpiece.

500‧‧‧ hearing aids

520‧‧‧Flexible cable

526, 528‧‧‧ microphone housing

532, 532a‧‧‧First flexible cable

534, 534a‧‧‧Second flexible cable

536, 538‧‧‧ audio signal output terminal

542, 544‧‧‧Flexible cable

546‧‧‧Signal connector

552, 554‧ ‧ holes

560‧‧‧Sound processing device

Claims (23)

A wearable sound amplification device for a hearing impaired person, comprising: a first ear piece for attaching to a first ear of a user, a second ear piece for attaching to a second ear of the user, and a first sound collector to which the first ear piece is connected, a second sound collector connected to the second ear piece, and a sound processing device; wherein each of the first sound collector and the second sound The collector is adapted to collect sounds around the user and is adapted to output the collected ambient sound for processing by the sound processing device; the sound processing device comprising for receiving and processing collected by the first sound And a sound processor of the second sound collector that utilizes diversity techniques collected by the diversity technique, and for outputting an audio signal to the user subsequently or by means of one or both of the first earpiece and the second earpiece The device is adapted to follow the movement of the user's head when the user's head is rotated relative to the body. The wearable sound amplification device for a hearing impaired person according to claim 1, wherein the first sound collector is connected to the first ear piece through a first flexible signal line, the second sound The collector is coupled to the second ear piece by a second flexible signal line. A wearable sound reinforcement device for a hearing impaired person according to claim 1 or 2, wherein, in use, the sound collector is hung or hung under the corresponding ear piece for sound collection. The sound collector is arranged such that when the user's head is rotated relative to the user's body, the movement of the sound collector is not blocked by the user's body. A wearable sound reinforcement device for a hearing impaired person according to claim 1 or 2, wherein, in use, the sound collector is hung or suspended between the ear and the shoulder of the user. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein the sound processing device is adapted to be processed by the first sound collector and the second sound collector using beamforming techniques. The sound is produced to produce a forward sound output that is then subjected to adaptive noise cancellation. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein the sound processing device is adapted to select a sound within a range of ±30° from a user's forward axis. . A wearable sound amplifying device for a hearing impaired person according to claim 1 or 2, wherein the sound collector comprises a microphone, and the microphone is a condenser microphone. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein the sound collector is disposed in a casing, and the casing is provided with the sound collector The hole for communication and the hole axis with a defined forward direction. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein each of said sound collectors is disposed on said flexible signal line, and a lateral distance between said sound collectors It is user adjustable or variable by shaking the flexible signal line. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein the first flexible signal line and the second flexible signal line transmit the same audio output signal. A wearable sound amplifying device for a hearing impaired person according to claim 1 or 2, wherein each of the earpieces includes an adapter for detachably connecting with the earphone, the earphone being receivable Inside the user's ear. A wearable sound amplification device for a hearing impaired person according to claim 1 or 2, wherein the first sound collector and the second sound collector pass through a third flexible signal line and the sound processing device Connected, the third flexible signal line is adapted to transmit signals collected by the first sound collector and the second sound collector for processing by the sound processing device, and processed by the sound processing device A signal for output to the earpiece, the third flexible signal line forming an adjustable collar for a user to wear. A hearing aid accessory for use with a sound processing device having a diversity processing capability such as beamforming for providing sound amplification to a hearing impaired person, characterized in that the hearing aid accessory includes an attachment for use a first ear piece on the first ear, a second ear piece attached to the second ear of the user, a first sound collector connected to the first ear piece, and connected to the second ear piece a second sound collector, and a sound processing device; wherein each of the first sound collector and the second sound collector is adapted to collect sound around the user and is adapted to output the collected surrounding sounds Means for being processed by the sound processing device; the sound processing device comprising a sound processor for receiving and processing the diversity sound collected by the first sound collector and the second sound collector using diversity techniques, and for And then outputting an audio signal to the user's device by or by means of one or both of the first earpiece and the second earpiece; when the user's head is opposite to When the body is rotated, the sound collector is adapted to follow the movement of the user's head. The hearing aid accessory of claim 13, wherein the first sound collection The device is coupled to the first ear piece by a first flexible signal line, and the second sound collector is coupled to the second ear piece by a second flexible signal line. A hearing aid accessory according to claim 13 or claim 14, wherein, in use, the sound collector is hung or suspended under a corresponding one of the earpieces for sound collection, the sound collector being arranged Thus, when the user's head is rotated relative to the user's body, the movement of the sound collector is not blocked by the user's body. The hearing aid accessory of claim 13 or 14, wherein the sound collector is adapted to change the flexible signal line by shaking the first flexible thin signal line and/or the second flexible signal line The relative position is such that the lateral spacing between the sound collectors is adjustable. A hearing aid accessory according to claim 13 or claim 14, wherein each of the sound collectors is hung or suspended below the earpiece, and the influence of gravity generated by the weight of the sound collector is applied to the belt. There is a flexible signal line of the sound collector. A hearing aid accessory according to claim 13 or claim 14, wherein each of said sound collectors is adapted to twist or rotate said flexible signal line about an axis of said flexible signal line to cause said sound collector The sound collection direction is variable. The hearing aid accessory of claim 13 or 14, wherein the earphone is coupled to the sound collector, the sound collector being in use when the user's head and shoulder have relative motion in use. The sound collection direction follows the user's movement. A hearing aid accessory according to claim 13 or claim 14, wherein the lateral spacing between the sound collectors is determined by the lateral spacing between the earpieces if neutral or undisturbed by the user. The hearing aid accessory of claim 13 or claim 14, wherein each of the sound collectors is disposed within a housing having a hole defining a direction of sound collection. A hearing aid accessory according to claim 13 or 14, wherein each of said sound collectors is disposed within a housing, and a first longitudinal end of said housing is coupled to said flexible signal line, said housing Connecting the other flexible signal line at a second opposite longitudinal end of the distal end of the first longitudinal end; the second longitudinal signal line is adapted to transmit a signal from the sound collector to the sound processing device, and The sound processing device outputs a signal to one or more of the earpieces. A hearing aid accessory according to claim 13 or claim 14, wherein a flexible cable is connected between the earphone and the sound collector, and the sound collector is guided by the earphone when in use. downwards.