CN216291417U

CN216291417U - Head stereo device

Info

Publication number: CN216291417U
Application number: CN202122707348.2U
Authority: CN
Inventors: 曾德钧
Original assignee: Shenzhen Airsmart Technology Co Ltd
Current assignee: Shenzhen Airsmart Technology Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-12
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to the technical field of audio equipment, and particularly discloses a head stereo device with a good sound surrounding effect, which comprises a first wearing part matched with the left ear of a human body, a second wearing part matched with the right ear of the human body, a left ear playing unit accommodated in the first wearing part, a right ear playing unit accommodated in the second wearing part, a U-shaped surrounding part connected with the first wearing part and the second wearing part, and an MCU chip for controlling the left ear playing unit and the right ear playing unit to work; the left ear play unit comprises a left sound channel main loudspeaker and a right sound channel auxiliary loudspeaker, the right ear play unit comprises a right sound channel main loudspeaker and a left sound channel auxiliary loudspeaker, and the MCU chip controls the left sound channel main loudspeaker, the right sound channel auxiliary loudspeaker, the right sound channel main loudspeaker and the left sound channel auxiliary loudspeaker to work so as to generate stereo sound effect. Above-mentioned device through setting up main loudspeaker and vice loudspeaker in one side, vice loudspeaker can compensate the sound signal of transmitting to this side by the main loudspeaker of opposite side to compensate auricle effect, realize stereo encirclement.

Description

Head stereo device

Technical Field

The utility model relates to the technical field of audio equipment, in particular to a head-mounted stereo device.

Background

The auricle effect exists in the process of listening to the audio, namely, when the ears of a person listen, the sound emitted by the right sound box reaches the right ear firstly, then the sound emitted by the right sound box reaches the left ear, the direct sound of the right sound box reaching the right ear and the left ear and the environment reflected sound have a slight time difference, and the person judges that the sound is transmitted from the right (sound box) through the time difference; similarly, the principle of the left sound box conducting sound signals is the same.

However, in the conventional head-mounted audio devices, such as wired earphones, TWS earphones, neck-hung earphones, wired or wireless head-mounted earphones, virtual multi-channel earphones, smart audio glasses, AR or VR smart devices, bone conduction earphones, and the like, due to structural reasons, the left earphone can only play left channel sound, and the right earphone can only play right channel sound, so that the pinna effect cannot be realized, and also the reproduction of a stereo sound field and the sound field sound positioning caused by the pinna effect cannot be realized, and it is difficult to realize real stereo surround, thereby affecting the audio listening experience of users.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide a head stereo having a good sound surround effect in response to the technical problem of lack of sound localization function.

A head stereo device comprises a first wearing part matched with a left ear of a human body, a second wearing part matched with a right ear of the human body, a left ear playing unit contained in the first wearing part, a right ear playing unit contained in the second wearing part, a U-shaped winding part connected with the first wearing part and the second wearing part, and an MCU chip for controlling the left ear playing unit and the right ear playing unit to work;

left side ear broadcast unit includes that left sound channel owner loudspeaker and the vice loudspeaker of right sound channel, right side ear broadcast unit includes that right sound channel owner loudspeaker and the vice loudspeaker of left sound channel, MCU chip control the left sound channel owner loudspeaker, the vice loudspeaker of right sound channel, the vice loudspeaker work of right sound channel owner loudspeaker and left sound channel to produce stereo audio.

In one embodiment, the left ear playing unit further includes at least one first woofer, and the right ear playing unit further includes at least one second woofer.

In one embodiment, the left channel main loudspeaker and the right channel auxiliary loudspeaker are arranged on the same side of the first wearing part and close to the front of the left ear, and the first bass loudspeaker is arranged on the other side of the first wearing part and close to the rear of the left ear; the right channel main loudspeaker and the left channel auxiliary loudspeaker are arranged on the same side of the second wearing portion and close to the front of the right ear, and the second woofer is arranged on the other side of the second wearing portion and close to the rear of the right ear.

In one embodiment, the left channel main horn and the right channel auxiliary horn are arranged side by side or sequentially along the height direction of the head; the right channel main horn and the left channel auxiliary horn are arranged side by side or sequentially along the height direction of the head.

In one embodiment, the left channel main loudspeaker and the right channel auxiliary loudspeaker are different in horizontal height and horizontal distance from the left ear; the right channel main loudspeaker and the left channel auxiliary loudspeaker are different in horizontal height and different in horizontal distance from the right ear.

In one embodiment, the headset stereo further comprises a delay circuit connected with the MCU chip.

In one embodiment, in the left ear playing unit, the sizes of the first woofer, the left channel main loudspeaker and the right channel sub loudspeaker are sequentially reduced; in the right ear playing unit, the sizes of the second woofer, the right sound channel main loudspeaker and the left sound channel auxiliary loudspeaker are reduced in sequence.

In one embodiment, each horn is of circular, square, rectangular or oval configuration.

In one embodiment, each of the speakers is a moving coil speaker, a moving iron speaker, a piezoelectric speaker, a MEMS speaker, a bone conduction speaker, or a speaker formed by mixing and combining the above speakers.

The head-wearing stereo device is implemented by arranging the left channel main loudspeaker and the right channel auxiliary loudspeaker at the first wearing part matched with the left ear, arranging the right channel main loudspeaker and the left channel auxiliary loudspeaker at the second wearing part matched with the right ear, and when the left ear listens to audio, the right channel auxiliary loudspeaker at the left ear is used for simulating slightly delayed audio sound transmitted from the right side, namely compensating the sound transmitted from the right channel main loudspeaker to the left ear.

Drawings

Fig. 1 is a schematic diagram of a head stereo in an embodiment of the present invention;

FIG. 2 is a block diagram of the head stereo of the embodiment shown in FIG. 1;

FIG. 3 is a schematic diagram illustrating the distribution of the left ear side locations of speakers according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the distribution of the primary speakers and the secondary speakers when they are vertically disposed according to an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating the distribution of the main speakers and the auxiliary speakers when they are arranged side by side according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating the distribution of the main speakers and the auxiliary speakers when they are obliquely arranged according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Please refer to fig. 1 and 2, the present invention discloses a head stereo 10 with a better sound surrounding effect, the head stereo 10 includes a first wearing part 110 matching with the left ear of the human body, a second wearing part 120 matching with the right ear of the human body, a left ear playing unit 200 received in the first wearing part 110, a right ear playing unit 300 received in the second wearing part 120, a U-shaped winding part 130 connecting the first wearing part 110 and the second wearing part 120, and a MCU chip 400 controlling the left ear playing unit 200 and the right ear playing unit 300 to work; the left ear playing unit 200 includes a left channel main speaker 210 and a right channel sub speaker 220, the right ear playing unit 300 includes a right channel main speaker 310 and a left channel sub speaker 320, and the MCU chip 400 controls the left channel main speaker 210, the right channel sub speaker 220, the right channel main speaker 310 and the left channel sub speaker 320 to operate so as to generate stereo sound effect.

In this embodiment, the audio content heard at the left ear is exemplified, and the audio content heard at the right ear can be analogized. Specifically, the left channel main speaker 210 in the first wearing portion 110 fitted to the left ear is used to provide an audio sound source signal so that the left ear can clearly hear the left channel content. Because there is a small difference between the time when the sound signal generated by the right channel main speaker 310 on the right ear side reaches the left ear and the time when the left channel main speaker 210 reaches the left ear, the user's left ear can hear the sound signal transmitted from the right channel main speaker 310 after hearing the sound signal emitted from the left channel main speaker 210 for a period of time, and thus, interference will occur between two sound signals transmitted successively, thereby affecting the effect of hearing the audio content at the left ear. By providing the right channel sub-speaker 220 on the left ear side, the left ear of the user can simultaneously hear the sound signals transmitted from the left channel main speaker 210 and the right channel sub-speaker 220, thereby weakening the influence of the time difference existing in the transmission of the sound signals.

In addition, because the right channel sub-speaker 220 and the right channel main speaker 310 will produce the superposition effect on the left ear side, so that the right channel sound signal is strengthened, in order to avoid the problem that the sound volume of the right channel sound signal heard by the left ear side is higher than the sound volume of the left channel sound signal, and further the obvious high and low sounds appear on the left ear side caused, the MCU chip 400 will control the sound volume of the right channel sub-speaker 220 to be lower than the sound volume of the left channel main speaker 210, and similarly, the MCU chip 400 will also adjust the sound volume of the left channel sub-speaker 320, so that the sound volume of the left channel sub-speaker 320 is lower than the sound volume of the right channel main speaker 310, thereby ensuring the sound balance of the left and right channels heard by the single-side ear of the user, and improving the stereo effect.

In one embodiment, the left channel main speaker 210 and the right channel main speaker 310 are middle and high speakers, and the frequency dividing points (i.e. frequencies) of the left channel sub speaker 320 and the right channel sub speaker 220 are higher than 300Hz, so that when a user wears the head stereo 10 of the present embodiment, the user can hear sound signals of two channels with different frequencies by using one ear, thereby providing a stereo effect. In order to further improve the stereo effect of the device, it is also necessary to set woofers in the two playing units respectively to match with the sound signal generated by the main speaker and enhance the sound surrounding effect. Specifically, the left ear playing unit 200 further includes at least one first woofer 230, and the right ear playing unit 300 further includes at least one second woofer 330, where the first woofer 230 is a left channel woofer, and the second woofer 330 is a right channel woofer. Preferably, the frequency division points of the first woofer 230 and the second woofer 330 are both below 150 Hz. Still taking the audio content heard by the left ear side as an example, the left ear side can hear the mid-high signal emitted by the left channel main speaker 210, the left channel bass signal emitted by the first woofer 230, and the superimposed signal at the left ear position by the right channel sub-speaker 220 and the right channel main speaker 310 simultaneously, i.e. can hear the sound signals with three different frequencies and heights simultaneously, thereby enhancing the stereo effect of the device.

In this embodiment, each of the speakers is a moving coil speaker, a moving iron speaker, a piezoelectric speaker, an MEMS speaker, a bone conduction speaker, or a speaker formed by mixing and combining the above speakers, and may be other types of speakers. According to the difference of model selection, device appearance and size design, each loudspeaker is in a circular, square, rectangular or elliptical structure, and can be other special-shaped loudspeakers. In the left ear playback unit 200, the sizes of the first woofer 230, the left channel main loudspeaker 210, and the right channel sub loudspeaker 220 are sequentially reduced; in the right ear playback unit 300, the sizes of the second woofer 330, the right channel main speaker 310, and the left channel sub speaker 320 are sequentially reduced. For example, when the speakers are circular speakers, the diameters of the left channel main speaker 210 and the right channel main speaker 310 are greater than or equal to 15mm, the diameters of the left channel sub speaker 320 and the right channel sub speaker 220 are greater than or equal to 10mm, and the diameters of the first woofer 230 and the second woofer 330 are greater than 25 mm.

In one embodiment, the left channel main speaker 210 and the right channel sub-speaker 220 are disposed on the same side of the first wearing portion 110 and near the front of the left ear, and the first woofer 230 is disposed on the other side of the first wearing portion 110 and near the rear of the left ear; the right channel main speaker 310 and the left channel sub-speaker 320 are disposed on the same side of the second wearing portion 120 and adjacent to the front of the right ear, and the second woofer 330 is disposed on the other side of the second wearing portion 120 and adjacent to the rear of the right ear. Referring to fig. 3, the left ear playback unit 200 only includes a first woofer 230 to illustrate the position distribution of the speakers at the left ear, as can be seen from fig. 3, the left channel main speaker 210 and the right channel auxiliary speaker 220 are disposed in front of the auricle of the left ear, the playback ends of the two are both facing the left ear, and the audio signals played by the two are superimposed to weaken the auricle effect; the first woofer 230 is disposed behind the auricle of the left ear, and the playing end of the first woofer 230 faces the left ear, and the bass signal generated by the woofer is mixed with the midrange sound signal generated by the left channel main loudspeaker 210 and the right channel sub loudspeaker 220 to generate the stereo effect.

In addition, it should be further noted that, according to the requirement of stereo sound quality, the headset stereo device 10 of the present invention may further increase the number of the main speakers and the auxiliary speakers in the left ear playback unit 200 and the right ear playback unit 300 to improve the sound quality and the stereo effect.

The left channel main horn 210 and the right channel sub-horn 220 are arranged side by side or sequentially along the head height direction; the right channel main horn 310 and the left channel sub-horn 320 are arranged side by side or sequentially in the head height direction. Referring to fig. 4, fig. 4 shows the positions of the speakers at the left ear, and it can be seen that the left channel main speaker 210 can be disposed above the right channel sub-speaker 220, and can also be disposed below the right channel sub-speaker 220; similarly, the right channel main speaker 310 may be disposed above the left channel sub speaker 320, or may be disposed below the left channel sub speaker 320. Referring to fig. 5, it can be seen that, when the left channel main speaker 210 and the right channel sub speaker 220 are arranged side by side, the left channel main speaker 210 and the right channel sub speaker 220 can be arranged at any height from the earlobe of the left ear to the top of the auricle, and the horizontal distance between the left channel main speaker 210 and the left ear is closer, or the horizontal distance between the right channel sub speaker 220 and the left ear is closer.

Referring to fig. 6, in another embodiment, the left channel main speaker 210 and the right channel sub speaker 220 have different horizontal heights and different horizontal distances from the left ear; the right channel main horn 310 and the left channel auxiliary horn 320 have different horizontal heights and different horizontal distances from the right ear, that is, an included angle is formed between the connecting line of the left channel main horn 210 and the right channel auxiliary horn 220 and the height direction of the left ear, and an included angle is formed between the connecting line of the right channel main horn 310 and the left channel auxiliary horn 320 and the height direction of the right ear; it can also be understood that the main horn and the auxiliary horn are arranged obliquely.

It should be noted that, as can be seen in connection with fig. 4-6, the first woofer 230 may be disposed at any height from the left ear lobe to the top of the pinna, and similarly, the second woofer 330 may be disposed at any height from the right ear lobe to the top of the pinna. The material, shape and setting manner of each speaker in the left ear playing unit 200 may be the same as or different from those of each speaker in the right ear playing unit 300, and will not be described herein again.

In this embodiment, two ends of the U-shaped winding portion 130 are further connected to a first ear portion 140 and a second ear portion 150, respectively, and the first ear portion 140 and the second ear portion 150 are both hollow tubular structures. First hangers portion 140 is used for wearing portion 110 with human left ear outline cooperation, and the end of first hangers portion 140 is equipped with first, and second hangers portion 150 is used for wearing portion 120 with human right ear outline cooperation, and the end of second hangers portion 150 is equipped with the second. A control shell 160 communicated with the inner cavity of the first ear hanging part 140 is arranged between the U-shaped winding part 130 and the first ear hanging part 140, and the MCU chip 400 is accommodated in the control shell 160; a power supply shell 170 is arranged between the U-shaped winding part 130 and the second hanging lug part 150, and a battery for providing the operating voltage of the audio device is accommodated in the power supply shell 170.

In one embodiment, the first wearing portion 110 and the second wearing portion 120 are respectively provided with a volume control 180 for adjusting the audio volume. Specifically, when the volume control 180 on the first wearing portion 110 is pressed, the MCU chip 400 receives the volume adjustment signal and adjusts the volume of the left channel main speaker 210, and at the same time, the MCU chip 400 synchronously adjusts the volume of the right channel auxiliary speaker 220, so that the left channel signal and the right channel signal heard by the left ear are as balanced as possible. Similarly, when the volume control 180 on the second wearing part 120 is pressed, the MCU chip 400 receives the volume adjustment signal and adjusts the volume of the right channel main speaker 310, and at the same time, the MCU chip 400 synchronously adjusts the volume of the left channel auxiliary speaker 320 to make the left channel signal and the right channel signal heard by the right ear as balanced as possible.

In this embodiment, the head stereo 10 further includes a delay circuit connected to the MCU chip 400, and the delay circuit is used to define the time interval between the left channel main speaker 210 and the right channel sub-speaker 220 and the time interval between the right channel main speaker 310 and the left channel sub-speaker 320. Specifically, when the head stereo 10 works, the MCU chip 400 receives a left-ear multi-channel encoded audio signal transmitted from the outside, and then decodes the multi-channel encoded audio signal to obtain a left-channel main speaker audio signal and a right-channel sub-speaker audio signal, and the delay circuit processes the right-channel sub-speaker audio signal, so that the sounding of the right-channel sub-speaker 220 lags behind the left-channel main speaker 210, and similarly, the MCU chip 400 controls the right-ear playback unit 300 in the same manner, so that the sound signal transmitted from the other side of the sound source is simulated by the delayed sounding sub-speaker to compensate for the pinna effect.

In the head stereo 10 according to the present invention, the left channel main speaker 210 and the right channel sub speaker 220 are disposed at the first wearing portion 110 engaged with the left ear, and the right channel main speaker 310 and the left channel sub speaker 320 are disposed at the second wearing portion 120 engaged with the right ear, when the left ear listens to audio, the right channel sub speaker 220 at the left ear compensates for the sound transmitted from the right channel main speaker 310 to the left ear, and similarly, when the right ear listens to audio, the left channel sub speaker 320 at the right ear compensates for the sound transmitted from the left channel main speaker 210 to the right ear, so as to compensate for the pinna effect, so that a stereo surround effect is generated around the head, thereby enhancing the listening experience for the user.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A head stereo device is characterized by comprising a first wearing part matched with the left ear of a human body, a second wearing part matched with the right ear of the human body, a left ear playing unit accommodated in the first wearing part, a right ear playing unit accommodated in the second wearing part, a U-shaped winding part connected with the first wearing part and the second wearing part, and an MCU chip for controlling the left ear playing unit and the right ear playing unit to work;

2. The headset stereo of claim 1, wherein the left ear playback unit further comprises at least one first woofer and the right ear playback unit further comprises at least one second woofer.

3. The head-mounted stereo apparatus according to claim 2, wherein the left channel main speaker and the right channel sub-speaker are disposed on the same side of the first wearing portion and adjacent to the front of the left ear, and the first woofer is disposed on the other side of the first wearing portion and adjacent to the rear of the left ear; the right channel main loudspeaker and the left channel auxiliary loudspeaker are arranged on the same side of the second wearing portion and close to the front of the right ear, and the second woofer is arranged on the other side of the second wearing portion and close to the rear of the right ear.

4. The head stereo apparatus according to claim 3, wherein the left channel main speakers and the right channel sub speakers are arranged side by side or sequentially in a head height direction; the right channel main horn and the left channel auxiliary horn are arranged side by side or sequentially along the height direction of the head.

5. The head stereo of claim 3, wherein the left channel primary loudspeaker and the right channel secondary loudspeaker are at different horizontal heights and different horizontal distances from the left ear; the right channel main loudspeaker and the left channel auxiliary loudspeaker are different in horizontal height and different in horizontal distance from the right ear.

6. The headset stereo device of claim 4 or 5, further comprising a delay circuit connected to the MCU chip.

7. The headphone stereo of claim 6, wherein the left ear playback unit sequentially reduces the size of the first woofer, the left channel main loudspeaker, and the right channel sub loudspeaker; in the right ear playing unit, the sizes of the second woofer, the right sound channel main loudspeaker and the left sound channel auxiliary loudspeaker are reduced in sequence.

8. A head stereo according to claim 7 wherein each horn is of circular, square, rectangular or oval configuration.

9. The head stereo of claim 8, wherein each of the speakers is one of a moving coil speaker, a moving iron speaker, a piezoelectric speaker, a MEMS speaker, or a bone conduction speaker.