阅读说明：本技术 一种带有耳机放大器的多声道蓝牙耳机 (Multichannel bluetooth headset with earphone amplifier ) 是由 杈逛豢 边仿 于 2020-07-17 设计创作，主要内容包括：一种带有耳机放大器的多声道蓝牙耳机,包括耳机支架和耳罩,所述耳机支架包括主支架和设置于所述主支架两端的两个副支架,所述主支架上设置有芯片仓和导轨,所述芯片仓设置于所述耳机支架的中部,所述芯片仓内设置有蓝牙模组和放大器模组,所述蓝牙模组用于从音源设备接收音频的数字信号,所述放大器模组用于将所述蓝牙模组获取的数字信号转换为模拟信号并将所述模拟信号调制为用于驱动所述蓝牙耳机的电信号；两个所述耳罩内均对称设置有发声单元,每个所述耳罩内设置所述发声单元的数量大于1；多个所述发声单元组成多声道环绕立体声系统。(A multi-channel Bluetooth headset with a headset amplifier comprises a headset bracket and earmuffs, wherein the headset bracket comprises a main bracket and two auxiliary brackets arranged at two ends of the main bracket, a chip bin and a guide rail are arranged on the main bracket, the chip bin is arranged in the middle of the headset bracket, a Bluetooth module and an amplifier module are arranged in the chip bin, the Bluetooth module is used for receiving digital audio signals from sound source equipment, and the amplifier module is used for converting the digital signals acquired by the Bluetooth module into analog signals and modulating the analog signals into electric signals for driving the Bluetooth headset; sound production units are symmetrically arranged in the two earmuffs, and the number of the sound production units in each earmuff is more than 1; and a plurality of the sound production units form a multi-channel surround sound system.)

1. A multichannel bluetooth headset with an earphone amplifier, characterized in that: the earphone comprises an earphone support and two earmuffs, wherein the earphone support comprises a main support and two auxiliary supports arranged at two ends of the main support, a chip bin and a guide rail are arranged on the main support, the auxiliary supports are connected with the guide rail in a sliding manner, and the two earmuffs are respectively arranged at one ends of the two auxiliary supports different from the main support;

the chip bin is arranged in the middle of the earphone support, a Bluetooth module and an amplifier module are arranged in the chip bin, the Bluetooth module is used for receiving digital audio signals from sound source equipment, and the amplifier module is used for converting the digital audio signals acquired by the Bluetooth module into analog signals and modulating the analog signals into electric signals for driving the Bluetooth earphone;

Sound production units are symmetrically arranged in the two earmuffs, and the number of the sound production units in each earmuff is more than 1;

the sound generating units are miniature flat plate type vibration units, and a multi-channel surround stereo system is formed by the sound generating units.

2. The multi-channel bluetooth headset with a headset amplifier as claimed in claim 1, wherein the number of the amplifier modules is 2, and 2 amplifier modules respectively drive the sound units at two sides.

3. The multi-channel bluetooth headset with a headset amplifier of claim 2, wherein a decoding module is further disposed in the chip chamber, each of the amplifier modules has n channels, n is equal to the number of sound units disposed in each of the ear cups; the decoding module is used for AC-3 decoding the digital signal and transmitting the analyzed digital signal to a corresponding channel of the amplifier module; and each channel of the amplifier module respectively drives each corresponding sounding unit.

4. The multi-channel bluetooth headset with a headset amplifier as claimed in claim 3, wherein 3 sound units are provided in each of the ear cups to form a 5.1-channel system, and each sound unit comprises 1 ultra-low frequency sound unit, and the ultra-low frequency sound unit is provided at the center of the ear cup; each earmuff is also internally provided with 1 front sound-emitting unit and 1 rear sound-emitting unit, and the front sound-emitting units and the rear sound-emitting units are symmetrically arranged on the front side and the rear side of the earmuff respectively by taking the ultralow frequency sound-emitting units as centers; the sounding frequency of the ultra-low frequency sounding unit is 8-150 Hz.

5. The multi-channel bluetooth headset with a headset amplifier according to claim 3, wherein 3 sound units are provided in each of the ear cups to constitute a 7.1-channel system; each earmuff is internally provided with 1 middle and low frequency sounding unit, and the middle and low frequency sounding units are arranged at the center of the earmuff; every still be provided with 1 preceding vocal unit and 1 back vocal unit in the ear muff, preceding vocal unit with back vocal unit respectively with well low frequency vocal unit sets up as central symmetry the front side and the rear side of ear muff.

6. The multi-channel bluetooth headset with a headset amplifier according to claim 3, wherein 5 sound units are provided in each ear cup to form a 9.1-channel system; the sounding unit comprises 1 ultralow frequency sounding unit, and the ultralow frequency sounding unit is arranged in the center of the ear shield; each ear muff is also internally provided with 1 front upper sound production unit, 1 front lower sound production unit, 1 rear upper sound production unit and 1 rear lower sound production unit; the front upper sound production unit, the front lower sound production unit, the rear upper sound production unit and the rear lower sound production unit are respectively positioned at the front end upper side, the front end lower side, the rear end upper side and the rear end lower side of the ear muffs, and the sound production frequency of the ultra-low frequency sound production unit is 8-150 Hz.

7. The multi-channel Bluetooth headset with a headset amplifier of claim 4, 5 or 6, wherein the sound generating unit is a miniature flat plate type vibration unit having a volume of not more than 1 cubic centimeter and a sensitivity of more than 100 dB.

8. The multi-channel bluetooth headset with a headset amplifier as claimed in claim 3, wherein when the channel information of the audio does not match the channel attribute of the bluetooth headset, the decoding module adjusts the sound generation information of the audio into digital signals matching the channel attribute of the bluetooth headset and transmits the digital signals to corresponding channels of the amplifier module to finally drive corresponding sound generation units.

9. The multi-channel bluetooth headset with a headset amplifier of claim 8, wherein when the channel information of the audio is smaller than the number of channels of the bluetooth headset, the decoding module allocates the low frequency sounding information of the audio to each corresponding channel of the amplifier module according to the channel to which the audio belongs and finally drives the corresponding low frequency sounding unit; and the decoding module distributes the medium-frequency and high-frequency sounding information of the audio frequency to each corresponding channel of the amplifier module in a balanced manner according to the channel to which the decoding module belongs and finally drives each corresponding sounding unit.

10. The multi-channel bluetooth headset with a headset amplifier of claim 8, wherein when the channel information of the audio is greater than the number of channels of the bluetooth headset, the decoding module allocates the sounding information in the audio, which can be matched with the channels of the bluetooth headset, to the corresponding channels of the amplifier module according to the channels to which the audio belongs and finally drives the corresponding sounding units; the decoding module decomposes the sounding information which cannot be matched with the sound channel of the Bluetooth headset in the audio and distributes the sounding information to the channels on the same side of the amplifier module, and finally drives each corresponding sounding unit.

Technical Field

The invention relates to the technical field of high-sound-quality earphones, in particular to a multi-channel Bluetooth earphone with an earphone amplifier.

Background

The existing Bluetooth headset is limited by the volume of the headset and the capacity of a driving unit, only a moving coil or moving iron type sound production unit can be adopted, and the sound field and the sound image performance are poor; meanwhile, for a flat plate type or electrostatic sound generating unit with strong sound field and sound image expression, large driving power is needed, the requirement on front-end driving equipment is extremely high, and the sound generating quality can be ensured only by additionally arranging an ear amplifier (earphone amplifier). Therefore, it is a difficult problem in the technical field of high-quality earphones to provide high-quality auditory enjoyment and to enable users to get rid of the constraint of data transmission harnesses.

Thanks to the rapid development of the bluetooth technology and the high-capacity battery technology in recent years, a technical scheme for integrating a headset amplifier in a bluetooth headset becomes possible. The existing Bluetooth headset amplifier combines a Bluetooth transmission technology with a traditional headset amplifier, the existing Bluetooth headset amplifier is in wireless connection with sound source equipment through a Bluetooth module, digital signals decoded by the Bluetooth module are converted into analog signals to be provided for a DAC circuit, and the analog signals after modulation are input into a headset through a data transmission line by the DAC circuit, so that the limitation of the data line of the sound source equipment and the ear release equipment is liberated to a certain extent. However, this connection does not really get the high-quality headphones free from the connection cord.

Meanwhile, with the improvement of the life quality of people, the user also puts forward a new requirement on the environment stereophonic effect of the head-mounted audio output equipment. Existing multi-channel enabled Headphone or earphone devices employ virtual multi-channel Technology, such as VPT Technology (Virtualphones Technology) proposed by Sony corporation and Dolby Headphone Technology (Dolby Headphone) offered by Dolby laboratories. The former simulates the spatial sense of multi-channel surround sound by adding the difference information to the sound signal played by the earphone according to the slight difference of the sound in frequency and phase after the sound is reflected and absorbed by the external ear and the ear canal of the human body; the latter assigns respective source signal labels in a multi-channel sound environment to each channel through a dolby headphone processor and mixes the subwoofer signal in the right and left channels of a conventional headphone in an appropriate ratio to exhibit the spatial properties of the original audio. However, the implementation of virtual multi-channel technology is limited by the sound production capability of the headphone speaker and the simulation degree of the algorithm on the spatial attributes of the original audio, and the real environmental effect of the original audio cannot be truly reproduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a multi-channel Bluetooth headset with a headset amplifier, which comprises a headset bracket and two ear muffs, wherein the headset bracket comprises a main bracket and two auxiliary brackets arranged at two ends of the main bracket, a chip bin and a guide rail are arranged on the main bracket, the auxiliary brackets are connected with the guide rail in a sliding manner, and the two ear muffs are respectively arranged at one end of the two auxiliary brackets, which is different from the main bracket; the chip bin is arranged in the middle of the earphone support, a Bluetooth module and an amplifier module are arranged in the chip bin, the Bluetooth module is used for receiving digital audio signals from sound source equipment, and the amplifier module is used for converting the digital audio signals acquired by the Bluetooth module into analog signals and modulating the analog signals into electric signals for driving the Bluetooth earphone; sound production units are symmetrically arranged in the two earmuffs, and the number of the sound production units in each earmuff is more than 1; the sound generating units are miniature flat plate type vibration units, and a multi-channel surround stereo system is formed by the sound generating units.

Preferably, the number of the amplifier modules is 2, and 2 of the amplifier modules respectively drive the sound generating units on two sides.

Preferably, a decoding module is further arranged in the chip bin, the amplifier module has n channels, and n is equal to the number of sound generating units arranged in each ear muff; the decoding module is used for AC-3 decoding the digital signal and transmitting the analyzed digital signal to a corresponding channel of the amplifier module; and each channel of the amplifier module respectively drives each sounding unit.

Preferably, 3 sound production units are arranged in each ear muff to form a 5.1 sound track system, each sound production unit comprises 1 ultra-low frequency sound production unit, and the ultra-low frequency sound production unit is arranged in the center of the ear muff; each earmuff is also internally provided with 1 front sound-emitting unit and 1 rear sound-emitting unit, and the front sound-emitting units and the rear sound-emitting units are symmetrically arranged on the front side and the rear side of the earmuff respectively by taking the ultralow frequency sound-emitting units as centers; the sounding frequency of the ultra-low frequency sounding unit is 8-150 Hz.

Preferably, 3 sound production units are arranged in each ear muff to form a 7.1 sound channel system; each earmuff is internally provided with 1 middle and low frequency sounding unit, and the middle and low frequency sounding units are arranged at the center of the earmuff; every still be provided with 1 preceding vocal unit and 1 back vocal unit in the ear muff, preceding vocal unit with back vocal unit respectively with well low frequency vocal unit sets up as central symmetry the front side and the rear side of ear muff.

Preferably, 5 sound production units are arranged in each ear muff to form a 9.1 sound channel system; the sounding unit comprises 1 ultralow frequency sounding unit, and the ultralow frequency sounding unit is arranged in the center of the ear shield; each ear muff is also internally provided with 1 front upper sound production unit, 1 front lower sound production unit, 1 rear upper sound production unit and 1 rear lower sound production unit; the front upper sound production unit, the front lower sound production unit, the rear upper sound production unit and the rear lower sound production unit are respectively positioned at the front end upper side, the front end lower side, the rear end upper side and the rear end lower side of the ear muffs, and the sound production frequency of the ultra-low frequency sound production unit is 8-150 Hz.

Preferably, the sound generating unit is a miniature flat plate type vibration unit with the volume not more than 1 cubic centimeter and the sensitivity more than 100 dB.

Preferably, when the sound channel information of the audio is not matched with the sound channel attribute of the bluetooth headset, the decoding module adjusts the sound production information of the audio into digital signals matched with the sound channel attribute of the bluetooth headset, and transmits the digital signals to corresponding channels of the amplifier module to finally drive corresponding sound production units.

Preferably, when the channel information of the audio is smaller than the number of channels of the bluetooth headset, the decoding module distributes the low-frequency sounding information of the audio to each corresponding channel of the amplifier module according to the channel to which the decoding module belongs and finally drives the corresponding low-frequency sounding unit; and the decoding module distributes the medium-frequency and high-frequency sounding information of the audio frequency to each corresponding channel of the amplifier module in a balanced manner according to the channel to which the decoding module belongs and finally drives each corresponding sounding unit.

Preferably, when the channel information of the audio is greater than the number of the channels of the bluetooth headset, the decoding module allocates the sounding information, which can be matched with the channels of the bluetooth headset, in the audio to each corresponding channel of the amplifier module according to the channel to which the audio belongs, and finally drives each corresponding sounding unit; the decoding module decomposes the sounding information which cannot be matched with the sound channel of the Bluetooth headset in the audio and distributes the sounding information to the channels on the same side of the amplifier module, and finally drives each corresponding sounding unit.

Drawings

Fig. 1 is a schematic diagram of the operation of a multi-channel bluetooth headset with a headset amplifier according to the present invention.

Fig. 2 is a schematic structural diagram of a multi-channel bluetooth headset with a headset amplifier according to an embodiment of the present invention.

Fig. 3 is a schematic partial structure diagram of a multi-channel bluetooth headset with a headset amplifier according to an embodiment of the present invention.

Fig. 4 is a schematic diagram showing the audio channel and channel data allocation of the bluetooth headset according to an embodiment of the invention.

Fig. 5 is a schematic diagram of audio channel and bluetooth headset channel data allocation according to an embodiment of the invention.

The system comprises a Bluetooth headset, a 110-headset support, a 111-main support, a 112-auxiliary support, a 113-guide rail, 120-earmuffs, a 121-ultra-low frequency sound production unit, a 122-front upper sound production unit, a 123-front lower sound production unit, a 124-rear upper sound production unit, a 125-rear lower sound production unit, a 130-chip bin, a 131-Bluetooth module, a 132-decoding module and a 133-amplifier module, wherein the Bluetooth headset is arranged on the front side of the headset; l1, L2, R1, R2-sound unit.

Detailed Description

In order to enable a high-sound-quality earphone to really get rid of the constraint of a connecting wire and realize the real multi-channel hearing experience of a head-wearing earphone device, the multi-channel Bluetooth earphone with the earphone amplifier is realized by the following technical scheme: