CN114827828B - Bluetooth hearing-aid earphone and control method thereof - Google Patents
Bluetooth hearing-aid earphone and control method thereof Download PDFInfo
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- CN114827828B CN114827828B CN202210421915.4A CN202210421915A CN114827828B CN 114827828 B CN114827828 B CN 114827828B CN 202210421915 A CN202210421915 A CN 202210421915A CN 114827828 B CN114827828 B CN 114827828B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/43—Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/48—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using constructional means for obtaining a desired frequency response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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Abstract
The invention discloses a Bluetooth hearing-aid earphone and a control method thereof, wherein the Bluetooth hearing-aid earphone comprises: the hearing aid unit, bluetooth unit, intelligent frequency division unit, move indisputable loudspeaker unit and move the circle loudspeaker unit, hearing aid unit and bluetooth unit are connected, hearing aid unit, bluetooth unit, move indisputable loudspeaker unit and be connected with intelligent frequency division unit respectively, through carrying out the frequency division processing to audio signal under bluetooth hearing aid mode, rethread moves indisputable loudspeaker unit and moves indisputable loudspeaker unit synchronous output low frequency band audio signal, high frequency band audio signal, can improve the tone quality of the audio signal of bluetooth hearing aid earphone output, reach high tone quality output's effect, and under bluetooth hearing aid earphone's hearing aid mode, through moving indisputable loudspeaker unit direct output audio signal, can save bluetooth hearing aid earphone's consumption.
Description
Technical Field
The invention relates to the technical field of Bluetooth hearing-aid equipment, in particular to a Bluetooth hearing-aid earphone and a control method thereof.
Background
With the rapid development and functional perfection of bluetooth technology and hearing aids, bluetooth hearing aids are gradually becoming popular. The bluetooth hearing aid can utilize bluetooth signal connection equipment to carry out wireless transmission data when satisfying the amplification effect for bluetooth hearing aid's function is more diversified.
At present, two problems are involved in the aspect of audio output of a Bluetooth hearing aid, one problem is that only one unit of moving iron loudspeaker is used, the Bluetooth hearing aid is single in the aspect of audio output under the condition, and because of the characteristic that the vibrating diaphragm inherent in the moving iron loudspeaker is small, the quantity of air which can be blown by the moving iron loudspeaker compared with the moving coil loudspeaker is also much smaller, so that the audio saturation and softness of the moving iron loudspeaker are not perfect, and the low-frequency force performance is relatively weak. In addition, although the Bluetooth hearing aid can normally output audio, as the moving iron loudspeaker is unnatural in connection of high, middle and low frequency bands and has a slightly good middle and high frequency effect, the low frequency performance of the moving iron loudspeaker is not perfect enough under the common condition, and the output audio tone quality is relatively poor, so that the requirements of masses on the tone quality of Bluetooth audio application cannot be met gradually. Another difficulty is that with two unit horns, a moving iron horn and a moving coil horn, the sound quality is improved, but the power consumption of a real-time normally open double horn is greatly improved.
Disclosure of Invention
Based on the above, the invention aims to provide a Bluetooth hearing aid earphone and a control method thereof, which are used for solving the problems of high power consumption and poor Bluetooth audio quality of a Bluetooth hearing aid in the prior art.
In a first aspect, an embodiment of the present invention provides a bluetooth hearing aid headset, including: the intelligent frequency division device comprises a hearing aid unit, a Bluetooth unit, an intelligent frequency division unit, a moving iron horn unit and a moving coil horn unit, wherein the hearing aid unit is connected with the Bluetooth unit, and the hearing aid unit, the Bluetooth unit, the moving iron horn unit and the moving coil horn unit are respectively connected with the intelligent frequency division unit;
in a Bluetooth hearing aid mode, the Bluetooth unit is used for receiving a first audio signal connected with Bluetooth and sending a Bluetooth control signal to the intelligent frequency dividing unit, the hearing aid unit is used for amplifying the first audio signal, the intelligent frequency dividing unit is used for starting a frequency dividing function based on the Bluetooth control signal, dividing the amplified first audio signal into a low-frequency-band audio signal and a high-frequency-band audio signal, the moving coil loudspeaker unit is used for outputting the low-frequency-band audio signal, and the moving coil loudspeaker unit is used for synchronously outputting the high-frequency-band audio signal;
In a hearing-aid mode, the hearing-aid unit is used for picking up a second audio signal in an external environment and amplifying the second audio signal, the intelligent frequency division unit is used for transmitting the amplified second audio signal to the moving iron loudspeaker unit, and the moving iron loudspeaker unit is used for outputting the amplified second audio signal.
Optionally, the intelligent frequency dividing unit comprises a switch module and a frequency dividing module;
The switch module is connected with the hearing aid unit, the Bluetooth unit, the moving iron loudspeaker unit and the frequency division module, and is used for transmitting the amplified first audio signal to the frequency division module for frequency division in the Bluetooth hearing aid mode and transmitting the amplified second audio signal to the moving iron loudspeaker unit for output in the hearing aid mode;
The frequency division module is connected with the moving coil loudspeaker unit and the moving iron loudspeaker unit and is used for dividing the amplified first audio signal into the low-frequency-band audio signal and the high-frequency-band audio signal in the Bluetooth hearing aid mode, outputting the low-frequency-band audio signal through the moving coil loudspeaker unit and synchronously outputting the high-frequency-band audio signal through the moving iron loudspeaker unit.
Optionally, the switch module includes: a first electronic switch and a second electronic switch;
the first electronic switch is connected with the moving iron horn unit and is used for being opened in a hearing aid mode;
the second electronic switch is connected with the frequency division module and used for being opened in a Bluetooth hearing aid mode.
Optionally, the frequency dividing module includes: a first passive frequency divider and a second passive frequency divider;
The first passive frequency divider is connected with the second electronic switch and the moving iron horn unit and is used for extracting the low-frequency-band audio signals in the amplified first audio signals and transmitting the low-frequency-band audio signals to the moving iron horn unit for output in the Bluetooth hearing aid mode;
the second passive frequency divider is respectively connected with the second electronic switch and the moving coil loudspeaker unit, and is used for extracting the high-frequency-band audio signals in the amplified first audio signals and transmitting the high-frequency-band audio signals to the moving coil loudspeaker unit for output.
Optionally, the intelligent frequency dividing unit includes: the system comprises a singlechip, a direct-pass filter, a high-pass filter and a low-pass filter;
The singlechip is connected with the Bluetooth unit and the hearing aid unit and is used for determining to adopt the Bluetooth hearing aid mode to carry out output control of the audio signal when the Bluetooth control signal is received, and determining to adopt the hearing aid mode to carry out output control of the audio signal when the Bluetooth control signal is not received or the hearing aid control signal sent by the hearing aid unit is received;
The direct-pass filter is connected with the singlechip and the moving iron horn unit and is used for transmitting the amplified second audio signal to the moving iron horn unit for direct-pass output in the hearing-aid mode;
The high-pass filter is connected with the singlechip and the moving iron horn unit and is used for extracting the high-frequency band audio signal in the amplified first audio signal and transmitting the high-frequency band audio signal to the moving iron horn unit for outputting in the Bluetooth hearing aid mode;
The low-pass filter is connected with the singlechip and the moving coil loudspeaker unit and is used for extracting the low-frequency-band audio signals in the amplified first audio signals to be transmitted to the moving coil loudspeaker unit for output in the Bluetooth hearing-aid mode.
Optionally, the single-chip microcomputer includes: a first codec, an A/D conversion circuit, and a D/A conversion circuit; the intelligent frequency division unit also comprises an audio coder-decoder;
The first coder-decoder is connected with the hearing aid unit and the Bluetooth unit and is used for decoding the Bluetooth control signal and decoding a hearing aid control signal sent by the hearing aid unit, and the hearing aid control signal is used for indicating to close a frequency division function;
the A/D conversion circuit is connected with the hearing aid unit and the Bluetooth unit and is used for digitally converting the received amplified first audio signal in the Bluetooth hearing aid mode and digitally converting the amplified second audio signal in the hearing aid mode;
The audio coder-decoder is connected with the A/D conversion circuit and the D/A conversion circuit, and is used for decoding the first audio signal after digital conversion in the Bluetooth hearing-aid mode and decoding the second audio signal after digital conversion in the hearing-aid mode;
The D/A conversion circuit is connected with the direct-pass filter, the high-pass filter and the low-pass filter and is used for carrying out analog conversion on the first audio signal after decoding processing and then transmitting the first audio signal to the high-pass filter and the low-pass filter for frequency division processing in the Bluetooth hearing-aid mode, and carrying out analog conversion on the second audio signal after decoding processing and then transmitting the second audio signal to the direct-pass filter for direct-pass output in the Bluetooth hearing-aid mode.
Optionally, the intelligent frequency division unit includes a digital signal processor, the digital signal processor includes a plurality of first audio output channels for outputting audio signals to the moving-iron horn unit, and a plurality of second audio output channels for outputting audio signals to the moving-iron horn unit and the moving-coil horn unit, and the plurality of second audio output channels include a low frequency output channel and a high frequency output channel;
in the hearing-aid mode, the digital signal processor is used for transmitting the amplified second audio signals to the moving iron loudspeaker unit through a plurality of first audio output channels for direct output; or alternatively
In the bluetooth hearing-aid mode, the digital signal processor is configured to transmit the high-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit for output through the high-frequency output channels in the plurality of second audio output channels, and transmit the low-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit for output through the low-frequency output channels in the plurality of second audio output channels.
Optionally, the bluetooth unit includes a bluetooth chip, and the hearing aid unit includes a hearing aid chip; or the Bluetooth unit and the hearing aid unit are integrated in a Bluetooth hearing aid two-in-one chip.
Optionally, the moving coil horn unit includes one or more moving coil horns, and the moving iron horn unit includes one or more moving coil horns.
In a second aspect, an embodiment of the present invention provides a method for controlling a bluetooth hearing aid earphone, where the method is applied to any one of the bluetooth hearing aid earphones that may be designed in the first aspect, and the method includes:
detecting that the Bluetooth unit starts a Bluetooth function and enters a Bluetooth hearing aid mode, or detecting that the Bluetooth unit does not start the Bluetooth function and enters the hearing aid mode; wherein,
In the Bluetooth hearing aid mode, receiving a Bluetooth connected first audio signal through the Bluetooth unit and sending a Bluetooth control signal to the intelligent frequency division unit; amplifying the first audio signal by the hearing aid unit; starting a frequency division function based on the Bluetooth control signal through the intelligent frequency division unit, and dividing the amplified first audio signal into a low-frequency band audio signal and a high-frequency band audio signal; outputting the low-frequency-band audio signal through the moving coil loudspeaker unit, and synchronously outputting the high-frequency-band audio signal through the moving iron loudspeaker unit;
In the hearing aid mode, picking up a second audio signal in the external environment through the hearing aid unit and amplifying the second audio signal; transmitting the amplified second audio signal to the moving iron horn unit through the intelligent frequency dividing unit; and outputting the amplified second audio signal through the moving iron horn unit.
In a third aspect, embodiments of the present invention also provide a computer-readable storage medium storing at least one program; the method according to the second aspect described above is implemented when the at least one program is executed by a processor.
The beneficial technical effects of the invention are as follows:
Compared with the prior art, the Bluetooth hearing aid earphone provided by the embodiment of the invention has the advantages that the audio signal is subjected to frequency division processing in the Bluetooth hearing aid mode, and then the moving coil loudspeaker unit and the moving iron loudspeaker unit synchronously output the low-frequency-band audio signal and the high-frequency-band audio signal, so that the tone quality of the audio signal output by the Bluetooth hearing aid earphone can be improved, the effect of high tone quality output is achieved, and the power consumption of the Bluetooth hearing aid earphone can be saved by directly outputting the audio signal through the moving iron loudspeaker unit in the hearing aid mode of the Bluetooth hearing aid earphone.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
Fig. 1 is a schematic structural diagram of a first bluetooth hearing aid earphone according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second bluetooth hearing aid earphone according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third bluetooth hearing aid earphone according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth bluetooth hearing aid earphone according to an embodiment of the present invention;
fig. 5 is a flow chart of a control method of a bluetooth hearing aid earphone according to an embodiment of the present invention.
Detailed Description
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible mentioned in this specification are defined with respect to their construction, and they are relative concepts. Therefore, the position and the use state of the device may be changed accordingly. These and other directional terms should not be construed as limiting terms.
The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with aspects of the present disclosure.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
Unless stated to the contrary, the embodiments of the present invention refer to ordinal terms such as "first," "second," etc., for distinguishing between multiple objects and not for defining a sequence, timing, priority, or importance of the multiple objects.
The shapes and sizes of the individual components in the drawings do not reflect true proportions, and are intended to illustrate only implementations described in the following exemplary examples.
Referring to fig. 1, a bluetooth hearing aid earphone provided in an embodiment of the present invention includes: the intelligent frequency division device comprises a hearing aid unit 1, a Bluetooth unit 2, an intelligent frequency division unit 3, a moving iron horn unit 4 and a moving coil horn unit 5, wherein the hearing aid unit 1 is connected with the Bluetooth unit 2, and the hearing aid unit 1, the Bluetooth unit 2, the moving iron horn unit 4 and the moving coil horn unit 5 are respectively connected with the intelligent frequency division unit 3.
In particular implementations, the audio output modes of the bluetooth hearing assistance headset may include a bluetooth hearing assistance mode and a hearing assistance mode. The following will specifically describe the operation of the bluetooth hearing aid headset in a bluetooth hearing aid mode and in a hearing aid mode, respectively.
In the bluetooth hearing assistance mode, the bluetooth unit 2 is configured to receive a first audio signal of a bluetooth connection, for example, receive a first audio output signal output by an external device wirelessly connected to the bluetooth unit 2, and send a bluetooth control signal to the intelligent frequency division unit 3, for example, when the bluetooth unit 2 is turned on, the bluetooth control signal may be sent to the intelligent frequency division unit 3 to instruct the intelligent frequency division unit 3 to turn on the frequency division function; the hearing aid unit 1 is configured to amplify the first audio signal, for example, by an amplification algorithm inside the hearing aid unit 1; the intelligent frequency division unit 3 is used for starting a frequency division function based on a Bluetooth control signal and dividing the amplified first audio signal into a low-frequency band audio signal and a high-frequency band audio signal; the moving coil loudspeaker unit 5 is used for outputting low-frequency audio signals, the moving iron loudspeaker unit 4 is used for synchronously outputting high-frequency audio signals, namely, the moving coil loudspeaker unit 5 and the moving iron loudspeaker unit 4 simultaneously output corresponding audio signals, so that the audio signals with specific frequencies can be output through different loudspeaker units to cooperatively work under the state that the Bluetooth hearing aid earphone is started, the different audio output units output the audio signals with the specific frequencies suitable for the different audio output units, the effect of optimizing the first audio signals is achieved, the tone quality of the audio signals output by the Bluetooth hearing aid earphone in the Bluetooth hearing aid mode can be improved, and the effect of high-tone output is achieved.
In the hearing aid mode, the hearing aid unit 1 is configured to pick up a second audio signal in the external environment and amplify the second audio signal; the intelligent frequency division unit 3 is used for transmitting the amplified second audio signal to the moving iron loudspeaker unit 4; the moving iron horn unit 4 is used for outputting the amplified second audio signal so as to output the audio signal through the single moving iron horn unit 4, thereby saving the power consumption of the Bluetooth hearing aid earphone.
In particular, in the bluetooth hearing assistance mode, the bluetooth unit 2 and the hearing assistance unit 1 are in an active state, and in the hearing assistance mode, the bluetooth unit 2 is in a standby inactive state.
In the embodiment of the invention, in the Bluetooth hearing-aid mode of the Bluetooth hearing-aid earphone, the moving coil loudspeaker unit 5 and the moving iron loudspeaker unit 4 synchronously output the low-frequency-band audio signal and the high-frequency-band audio signal, so that the tone quality of the audio signal output by the Bluetooth hearing-aid earphone can be improved, the effect of high tone output is achieved, and in the hearing-aid mode of the Bluetooth hearing-aid earphone, the moving iron loudspeaker unit 4 outputs the audio signal, so that the power consumption of the Bluetooth hearing-aid earphone can be saved.
Alternatively, the bluetooth unit 2 comprises a bluetooth chip and the hearing aid unit 1 comprises a hearing aid chip, i.e. the bluetooth unit 2 and the hearing aid unit 1 are two separately arranged units. Or the Bluetooth unit 2 and the hearing aid unit 1 are integrated in a Bluetooth hearing aid two-in-one chip.
Alternatively, the moving coil horn unit 5 includes one or more moving coil horns, and the moving iron horn unit 4 includes one or more moving coil horns.
Alternatively, as shown in connection with fig. 1-4, the implementation of the intelligent frequency dividing unit 3 may include three embodiments, and the implementation of these three embodiments will be described below.
Example 1
Alternatively, as shown in fig. 2, the intelligent frequency dividing unit 3 may include a switching module 31 and a frequency dividing module 32.
The switch module 31 is connected with the hearing aid unit 1, the bluetooth unit 2, the moving iron speaker unit 4 and the frequency division module 32, and is configured to transmit the amplified first audio signal to the frequency division module 32 for frequency division in a bluetooth hearing aid mode, and transmit the amplified second audio signal to the moving iron speaker unit 4 for output in a hearing aid mode, where the audio signal can be output in a suitable manner by the switch module 31 in a corresponding audio output mode, so that the tone quality of the audio signal output in the bluetooth hearing aid mode can be improved, and the power consumption of the bluetooth hearing aid earphone in the hearing aid mode can be saved.
The frequency division module 32 is connected with the moving coil speaker unit 5 and the moving iron speaker unit 4, and is configured to divide the amplified first audio signal into a low-frequency audio signal and a high-frequency audio signal in a bluetooth hearing-aid mode, output the low-frequency audio signal through the moving coil speaker unit 5, and synchronously output the high-frequency audio signal through the moving iron speaker unit 4, so that the tone quality of the audio signal output by the bluetooth hearing-aid earphone can be improved in the bluetooth hearing-aid mode.
In particular implementation, as shown in fig. 2, the switch module 31 includes: a first electronic switch 311 and a second electronic switch 312; the first electronic switch 311 is connected with the moving iron horn unit 4 and is used for being opened in a hearing aid mode; the second electronic switch 312 is connected to the frequency dividing module 32, and is used for being turned on in the bluetooth hearing assistance mode, so that different output modes can be selected to output audio signals according to different audio output modes.
For example, in the hearing aid mode, the hearing aid unit 1 may send a hearing aid control signal to the switch module 31 for controlling the first electronic switch 311 to be turned on, or the switch module 31 may control the first electronic switch 311 to be turned on when receiving no bluetooth control signal sent by the bluetooth unit 2, or when receiving an amplified second audio signal sent by the hearing aid unit 1, and in this mode, the second electronic switch 312 is turned off by default.
Illustratively, in the bluetooth hearing assistance mode, the switch module 31 controls the second electronic switch 312 to be turned on when receiving the bluetooth control signal sent by the bluetooth unit 2, and sends the amplified first audio signal to the frequency division module 32, in which mode the first electronic switch 311 is turned off by default.
In particular implementations, as shown in fig. 2, the frequency dividing module 32 includes: a first passive frequency divider 321 and a second passive frequency divider 322; the first passive frequency divider 321 is connected to the second electronic switch 312 and the moving iron horn unit 4, and is configured to extract a high-frequency audio signal in the amplified first audio signal in a bluetooth hearing assistance mode, for example, extract the high-frequency audio signal in the amplified first audio signal through preset circuit parameters, and transmit the high-frequency audio signal to the moving iron horn unit 4 for output; the second passive frequency divider 322 is respectively connected with the second electronic switch 312 and the moving coil speaker unit 5, and is configured to extract a low-frequency audio signal in the amplified first audio signal in the bluetooth hearing assistance mode, for example, extract the low-frequency audio signal in the amplified first audio signal through preset circuit parameters, and transmit the low-frequency audio signal to the moving coil speaker unit 5 for output, so that the tone quality of the audio signal output by the bluetooth hearing assistance earphone can be improved in the bluetooth hearing assistance mode.
In a specific implementation, the intelligent frequency dividing unit 3 further includes an I/O interface (not shown in fig. 2) for receiving the bluetooth control signal sent by the bluetooth unit 2 and receiving the hearing control signal sent by the hearing aid unit 1.
In the first embodiment, the intelligent frequency dividing unit 3 is matched with the frequency dividing module 32 through the switch module 31, so that the output control logic of the audio signal is simpler, the cost is lower, the realizability is stronger, and the circuit is stable and reliable. In addition, the cut-off frequency of the high-low frequency signals can be adjusted through an external electronic element, the frequency range of the audio signal output is wide, when the hearing aid function is used, the full-frequency-band audio signal can be output, when the Bluetooth and the hearing aid function are used, the high-frequency-band and the low-frequency-band are output to the corresponding loudspeaker units in a segmented mode, the layering sense is obvious, and the high-sound-quality effect can be achieved.
Example two
Optionally, as shown in fig. 3, the intelligent frequency dividing unit 3 includes: a single chip microcomputer 33, a pass filter 34, a high pass filter 35 and a low pass filter 36.
The singlechip 33 is connected to the bluetooth unit 2 and the hearing aid unit 1, and is configured to determine that the bluetooth hearing aid mode is used for performing output control of the audio signal when the bluetooth control signal is received, and determine that the hearing aid mode is used for performing output control of the audio signal when the bluetooth control signal is not received or the hearing aid control signal sent by the hearing aid unit 1 is received.
The through filter 34 is connected with the singlechip 33 and the moving iron horn unit 4, and is configured to transmit the amplified second audio signal to the moving iron horn unit 4 for through output in a hearing assistance mode.
The high-pass filter 35 is connected with the singlechip 33 and the moving iron horn unit 4, and is used for extracting a high-frequency band audio signal in the amplified first audio signal and transmitting the high-frequency band audio signal to the moving iron horn unit 4 for outputting in a Bluetooth hearing aid mode.
The low-pass filter 36 is connected with the singlechip 33 and the moving-coil speaker unit 5, and is used for extracting a low-frequency-band audio signal in the amplified first audio signal and transmitting the low-frequency-band audio signal to the moving-coil speaker unit 5 for outputting in a Bluetooth hearing-aid mode.
In specific implementation, the single-chip microcomputer 33 may pre-store the bluetooth hearing assistance mode and the audio output control program corresponding to the hearing assistance mode. In the bluetooth hearing assistance mode, the singlechip 33 may invoke an audio output control program corresponding to the bluetooth hearing assistance mode, switch and open the high-pass filter 35 and the low-pass filter 36, synchronously transmit the amplified first audio signal to the high-pass filter 35 and the low-pass filter 36 for frequency division, and output a high-frequency signal through the moving-iron speaker unit 4 and output a low-frequency signal through the moving-coil speaker unit 5, thereby improving the tone quality of the audio signal output by the bluetooth hearing assistance earphone. In the hearing-aid mode, the singlechip 33 may invoke an audio output control program corresponding to the hearing-aid mode, switch and open the pass-through filter 34, and transmit the amplified second audio signal to the pass-through filter 34, so as to pass through and output the amplified second audio signal through the moving iron horn unit 4, thereby saving the power consumption of the bluetooth hearing-aid earphone.
In specific implementation, as shown in fig. 3, the single-chip microcomputer 33 includes: a first codec 331, an a/D conversion circuit 332, and a D/a conversion circuit 333; the intelligent crossover unit 3 also includes an audio codec 37.
The first codec 331 is connected to the hearing aid unit 1 and the bluetooth unit 2, and is configured to decode a bluetooth control signal, and is configured to decode a hearing aid control signal sent by the hearing aid unit 1, where the hearing aid control signal is configured to instruct to turn off the frequency division function.
The a/D conversion circuit 332 is connected to the hearing aid unit 1 and the bluetooth unit 2, and is configured to digitally convert the received amplified first audio signal in the bluetooth hearing aid mode, and to digitally convert the amplified second audio signal in the hearing aid mode.
The audio codec 37 is connected to the a/D conversion circuit 332 and the D/a conversion circuit 333, and is configured to decode the first audio signal after digital conversion in the bluetooth hearing assistance mode, and to decode the second audio signal after digital conversion in the hearing assistance mode, so that the received audio signal can be decrypted.
The D/a conversion circuit 333 is connected to the pass filter 34, the high-pass filter 35, and the low-pass filter 36, and is configured to, in the bluetooth hearing-aid mode, perform analog conversion on the decoded first audio signal, transmit the decoded first audio signal to the high-pass filter 35 and the low-pass filter 36 for frequency division, and, in the bluetooth hearing-aid mode, perform analog conversion on the decoded second audio signal, and transmit the decoded second audio signal to the pass filter 34 for pass output.
In a specific implementation, the singlechip 33 further includes an I/O interface (not shown in fig. 3) for receiving the bluetooth control signal sent by the bluetooth unit 2, and receiving the hearing control signal sent by the hearing aid unit 1.
In the second embodiment, the intelligent frequency dividing unit 3 performs the cooperation control of the audio signal output by setting the singlechip 33, the pass filter 34, the high-pass filter 35 and the low-pass filter 36, so that the circuit design integration level is high, the system stability is good, the frequency dividing loss is low, the efficiency is high, the signal processing speed delay is low, the operability of adjusting the frequency dividing points of high and low frequencies is high, and the bandwidth ranges of high and low frequency bands can be adjusted according to the actual demands.
Example III
Alternatively, as shown in fig. 4, the intelligent frequency dividing unit 3 includes: a digital signal processor 38, the digital signal processor 38 including a plurality of first audio output channels 381 for outputting audio signals to the moving iron horn unit 4, and a plurality of second audio output channels for outputting audio signals to the moving iron horn unit 4 and the moving coil horn unit 5, and the plurality of second audio output channels including a low frequency output channel 382b and a high frequency output channel 382a.
In the hearing-aid mode, the digital signal processor 38 is configured to transmit the amplified second audio signal to the moving iron speaker unit 4 through the plurality of first audio output channels 381 for through output. Or in the bluetooth hearing assistance mode, the digital signal processor 38 is configured to transmit the high-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit 4 for output through the high-frequency output channel 382a in the plurality of second audio output channels, and transmit the low-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit 5 for output through the low-frequency output channel 382b in the plurality of second audio output channels.
In a specific implementation, when the digital signal processor 38 receives the bluetooth control signal sent by the bluetooth unit 2, it determines to perform output control on the audio signal by using a bluetooth hearing aid mode, and transmits the amplified first audio signal to a plurality of second audio output channels for frequency division processing through internal logic operation and a digital signal processing program, and then outputs a high-frequency band audio signal through the moving-coil speaker unit 4 and synchronously outputs a low-frequency band audio signal through the moving-coil speaker unit 5. When the digital signal processor 38 does not receive the bluetooth control signal sent by the bluetooth unit 2 or receives the hearing control signal sent by the hearing unit 1, it determines to perform output control of the audio signal in a hearing mode, and transmits the amplified second audio signal to the plurality of first audio output channels 381 through internal logic operation and a digital signal processing program, and the plurality of first audio output channels 381 transmit the amplified second audio signal to the moving iron horn unit 4 for through output.
In particular, the digital signal processor 38 may have embedded therein specialized algorithms for different channels to enable the output audio range to be modified and compensated for audio signals in time according to different modes and different external audio sources to achieve high quality audio effects. For example, the digital signal processor 38 may switch different modes in real time through the external state control signal information, and read the audio algorithm pre-stored in the internal memory and corresponding to the corresponding mode, and open the corresponding audio output channel, so that the audio signal processed by the audio algorithm may be output through the corresponding speaker unit correspondingly.
In particular implementations, the digital signal processor 38 also includes an I/O interface (not shown in fig. 4) for receiving bluetooth control signals transmitted by the bluetooth unit 2 and for receiving hearing control signals transmitted by the hearing aid unit 1.
In the second embodiment, the intelligent frequency dividing unit 3 performs output control of the audio signal by setting the digital signal processor 38, the audio effect is well processed, the dynamic range is wide, the gain is adjustable, the definability is strong, different audio output effects can be defined according to different product requirements, different people can define different audio output effects, and the professional algorithm which can be embedded in the digital signal processor 38 can provide high-quality hearing aid and Bluetooth audio output, so that the intelligent frequency dividing effect is realized, and the power consumption of the Bluetooth hearing aid earphone is saved.
Compared with the prior art, the Bluetooth hearing aid earphone provided by the embodiment of the invention has the advantages that the audio signal is subjected to frequency division processing in the Bluetooth hearing aid mode, and then the moving coil loudspeaker unit 5 and the moving iron loudspeaker unit 4 synchronously output the low-frequency-band audio signal and the high-frequency-band audio signal, so that the tone quality of the audio signal output by the Bluetooth hearing aid earphone can be improved, the effect of high tone quality output is achieved, and the power consumption of the Bluetooth hearing aid earphone can be saved by directly outputting the audio signal through the moving iron loudspeaker unit 4 in the hearing aid mode of the Bluetooth hearing aid earphone.
Based on the same inventive concept, the embodiment of the invention also provides a control method of the Bluetooth hearing aid earphone, and the method can be applied to the Bluetooth hearing aid earphone shown in the figures 1-4. Referring to fig. 1-5, the method comprises the steps of:
s11, detecting that the Bluetooth unit 2 starts a Bluetooth function, entering a Bluetooth hearing aid mode, executing step S12, or not detecting that the Bluetooth unit 2 starts the Bluetooth function, entering the hearing aid mode, and executing step S13.
S12, receiving a first audio signal of Bluetooth connection through the Bluetooth unit 2 and sending a Bluetooth control signal to the intelligent frequency division unit 3; amplifying the first audio signal by the hearing aid unit 1; starting a frequency division function based on a Bluetooth control signal through an intelligent frequency division unit 3, and dividing the amplified first audio signal into a low-frequency band audio signal and a high-frequency band audio signal; the low-frequency audio signal is output through the moving coil speaker unit 5, and the high-frequency audio signal is synchronously output through the moving iron speaker unit 4.
S13, picking up a second audio signal in the external environment through the hearing aid unit 1, and amplifying the second audio signal; the amplified second audio signal is transmitted to a moving iron horn unit 4 through an intelligent frequency division unit 3; the amplified second audio signal is output through the moving iron horn unit 4.
The control method of the bluetooth hearing aid earphone in the embodiment of the present invention and the bluetooth hearing aid earphone shown in fig. 1-4 are based on the invention under the same concept, and through the foregoing detailed description of the bluetooth hearing aid earphone, a person skilled in the art can clearly understand the implementation process of the control method of the bluetooth hearing aid earphone in the embodiment, so that, for brevity of the description, no further description is provided herein.
Based on the same inventive concept, the embodiment of the present invention also provides a computer readable storage medium, where at least one program may be stored, and when the at least one program is executed by a processor, the control method of the bluetooth hearing aid headset shown in fig. 5 is implemented.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (8)
1. A bluetooth hearing aid headset, comprising: the intelligent frequency division device comprises a hearing aid unit, a Bluetooth unit, an intelligent frequency division unit, a moving iron horn unit and a moving coil horn unit, wherein the hearing aid unit is connected with the Bluetooth unit, and the hearing aid unit, the Bluetooth unit, the moving iron horn unit and the moving coil horn unit are respectively connected with the intelligent frequency division unit;
in a Bluetooth hearing aid mode, the Bluetooth unit is used for receiving a first audio signal connected with Bluetooth and sending a Bluetooth control signal to the intelligent frequency dividing unit, the hearing aid unit is used for amplifying the first audio signal, the intelligent frequency dividing unit is used for starting a frequency dividing function based on the Bluetooth control signal, dividing the amplified first audio signal into a low-frequency-band audio signal and a high-frequency-band audio signal, the moving coil loudspeaker unit is used for outputting the low-frequency-band audio signal, and the moving coil loudspeaker unit is used for synchronously outputting the high-frequency-band audio signal;
In a hearing-aid mode, the hearing-aid unit is used for picking up a second audio signal in an external environment and amplifying the second audio signal, the intelligent frequency division unit is used for transmitting the amplified second audio signal to the moving iron loudspeaker unit, and the moving iron loudspeaker unit is used for outputting the amplified second audio signal;
The intelligent frequency dividing unit comprises a switch module and a frequency dividing module;
The switch module is connected with the hearing aid unit, the Bluetooth unit, the moving iron loudspeaker unit and the frequency division module, and is used for transmitting the amplified first audio signal to the frequency division module for frequency division in the Bluetooth hearing aid mode and transmitting the amplified second audio signal to the moving iron loudspeaker unit for output in the hearing aid mode;
The frequency division module is connected with the moving coil loudspeaker unit and the moving iron loudspeaker unit and is used for dividing the amplified first audio signal into the low-frequency-band audio signal and the high-frequency-band audio signal in the Bluetooth hearing aid mode, outputting the low-frequency-band audio signal through the moving coil loudspeaker unit and synchronously outputting the high-frequency-band audio signal through the moving iron loudspeaker unit;
wherein, the switch module includes: a first electronic switch and a second electronic switch;
the first electronic switch is connected with the moving iron horn unit and is used for being opened in a hearing aid mode;
the second electronic switch is connected with the frequency division module and used for being opened in a Bluetooth hearing aid mode.
2. The bluetooth hearing assistance headset of claim 1, wherein the frequency dividing module comprises: a first passive frequency divider and a second passive frequency divider;
The first passive frequency divider is connected with the second electronic switch and the moving iron horn unit and is used for extracting the low-frequency-band audio signals in the amplified first audio signals and transmitting the low-frequency-band audio signals to the moving iron horn unit for output in the Bluetooth hearing aid mode;
the second passive frequency divider is respectively connected with the second electronic switch and the moving coil loudspeaker unit, and is used for extracting the high-frequency-band audio signals in the amplified first audio signals and transmitting the high-frequency-band audio signals to the moving coil loudspeaker unit for output.
3. The bluetooth hearing aid headset of claim 1, wherein the intelligent frequency dividing unit comprises: the system comprises a singlechip, a direct-pass filter, a high-pass filter and a low-pass filter;
The singlechip is connected with the Bluetooth unit and the hearing aid unit and is used for determining to adopt the Bluetooth hearing aid mode to carry out output control of the audio signal when the Bluetooth control signal is received, and determining to adopt the hearing aid mode to carry out output control of the audio signal when the Bluetooth control signal is not received or the hearing aid control signal sent by the hearing aid unit is received;
The direct-pass filter is connected with the singlechip and the moving iron horn unit and is used for transmitting the amplified second audio signal to the moving iron horn unit for direct-pass output in the hearing-aid mode;
The high-pass filter is connected with the singlechip and the moving iron horn unit and is used for extracting the high-frequency band audio signal in the amplified first audio signal and transmitting the high-frequency band audio signal to the moving iron horn unit for outputting in the Bluetooth hearing aid mode;
The low-pass filter is connected with the singlechip and the moving coil loudspeaker unit and is used for extracting the low-frequency-band audio signals in the amplified first audio signals to be transmitted to the moving coil loudspeaker unit for output in the Bluetooth hearing-aid mode.
4. The bluetooth hearing aid headset of claim 3, wherein the single chip microcomputer comprises: a first codec, an A/D conversion circuit, and a D/A conversion circuit; the intelligent frequency division unit also comprises an audio coder-decoder;
The first coder-decoder is connected with the hearing aid unit and the Bluetooth unit and is used for decoding the Bluetooth control signal and decoding a hearing aid control signal sent by the hearing aid unit, and the hearing aid control signal is used for indicating to close a frequency division function;
the A/D conversion circuit is connected with the hearing aid unit and the Bluetooth unit and is used for digitally converting the received amplified first audio signal in the Bluetooth hearing aid mode and digitally converting the amplified second audio signal in the hearing aid mode;
The audio coder-decoder is connected with the A/D conversion circuit and the D/A conversion circuit, and is used for decoding the first audio signal after digital conversion in the Bluetooth hearing-aid mode and decoding the second audio signal after digital conversion in the hearing-aid mode;
The D/A conversion circuit is connected with the direct-pass filter, the high-pass filter and the low-pass filter and is used for carrying out analog conversion on the first audio signal after decoding processing and then transmitting the first audio signal to the high-pass filter and the low-pass filter for frequency division processing in the Bluetooth hearing-aid mode, and carrying out analog conversion on the second audio signal after decoding processing and then transmitting the second audio signal to the direct-pass filter for direct-pass output in the Bluetooth hearing-aid mode.
5. The bluetooth hearing aid earpiece of claim 1, wherein the intelligent crossover unit includes a digital signal processor including a plurality of first audio output channels for outputting audio signals to the moving iron horn unit and a plurality of second audio output channels for outputting audio signals to the moving iron horn unit and the moving coil horn unit, the plurality of second audio output channels including a low frequency output channel and a high frequency output channel;
in the hearing-aid mode, the digital signal processor is used for transmitting the amplified second audio signals to the moving iron loudspeaker unit through a plurality of first audio output channels for direct output; or alternatively
In the bluetooth hearing-aid mode, the digital signal processor is configured to transmit the high-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit for output through the high-frequency output channels in the plurality of second audio output channels, and transmit the low-frequency audio signal in the amplified first audio signal to the moving-coil speaker unit for output through the low-frequency output channels in the plurality of second audio output channels.
6. The bluetooth hearing aid headset according to any of claims 1-5, wherein the bluetooth unit comprises a bluetooth chip and the hearing aid unit comprises a hearing aid chip; or the Bluetooth unit and the hearing aid unit are integrated in a Bluetooth hearing aid two-in-one chip.
7. The bluetooth hearing aid headset according to any one of claims 1-5, wherein the moving coil speaker unit comprises one or more moving coil speakers and the moving coil speaker unit comprises one or more moving coil speakers.
8. A control method of a bluetooth hearing aid headset, applied to the bluetooth hearing aid headset according to any one of claims 1-7, the method comprising:
detecting that the Bluetooth unit starts a Bluetooth function and enters a Bluetooth hearing aid mode, or detecting that the Bluetooth unit does not start the Bluetooth function and enters the hearing aid mode; wherein,
In the Bluetooth hearing aid mode, receiving a Bluetooth connected first audio signal through the Bluetooth unit and sending a Bluetooth control signal to the intelligent frequency division unit; amplifying the first audio signal by the hearing aid unit; starting a frequency division function based on the Bluetooth control signal through the intelligent frequency division unit, and dividing the amplified first audio signal into a low-frequency band audio signal and a high-frequency band audio signal; outputting the low-frequency-band audio signal through the moving coil loudspeaker unit, and synchronously outputting the high-frequency-band audio signal through the moving iron loudspeaker unit;
In the hearing aid mode, picking up a second audio signal in the external environment through the hearing aid unit and amplifying the second audio signal; transmitting the amplified second audio signal to the moving iron horn unit through the intelligent frequency dividing unit; and outputting the amplified second audio signal through the moving iron horn unit.
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| CN206807701U (en) * | 2017-04-28 | 2017-12-26 | 东莞市云仕电子有限公司 | Bluetooth earphone based on NFC technique |
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