CN102104815A - Auto-tuning earphone and earphone tuning method - Google Patents

Abstract

The invention discloses an automatic tuning earphone, which comprises an audio signal input unit, a loudspeaker, a microphone, an accessible memory and an arithmetic unit, wherein the audio signal input unit outputs a test audio signal, the loudspeaker receives the test audio signal and generates sound, the microphone receives the sound in the auditory meatus of a human body and outputs a comparison audio signal, the accessible memory accesses the comparison audio signal, the arithmetic unit performs arithmetic processing according to the comparison audio signal to obtain the frequency to be enhanced, the output audio signal and the frequency to be enhanced are subjected to arithmetic enhancement processing and then are input to the loudspeaker through the audio signal input unit.

Description

Auto-tuning earphone and earphone tuning method

technical field

The invention relates to an earphone, in particular to an automatic tuning earphone and an earphone tuning method.

Background technique

The frequency range that the ear can hear is usually between 16 and 1600 Hz. Broadly speaking, as long as it can produce sound, it is called a source, like various audio-visual products, such as walkmans, personal data processors (PDA), MP4 and mobile phones, etc. To produce the sound we can hear, it must be generated and transmitted by related electronic devices, and the electronic signal must be amplified by the speaker to become the sound that our ears can hear. A further statement is that any device that can produce sound and receive electronic signals can be called a speaker.

At present, there are many types of speakers, and one of the flat speakers: earphones is one of the speakers. With the development of electronic technology, various audio-visual products, such as walkmans, personal data processors (PDA), MP4 and mobile phones, are becoming more and more popular. Correspondingly, earphones for the above-mentioned products are widely used at the same time. People can enjoy music or receive information without interfering with each other, which brings great convenience to people.

However, because the shape and structure of each person's ears are different, some people have deeper ear canals, some people have wider ear canals, the effects caused by the outer ear, ear canal, etc., will make the sound in each person's ear canal There are different sound performances. Therefore, the same product has the same sound quality performance during the test, but after it reaches the user's hands, it produces different sound quality problems, which seriously affects the sound quality performance of the earphones and users. auditory experience.

To make the same earphone produce the best sound quality effect in the hands of different users, it is necessary to adjust the sound quality when different users use the earphone. In the earphones in the prior art, the adjustment of the sound size and the sound quality effect is performed by the playback device. To adjust the control, the earphone itself cannot adjust the sound quality effect. Therefore, the earphone cannot all play the best sound quality effect for different users, and the user cannot enjoy the best auditory experience.

Therefore, there is a need for an auto-tuning earphone that can automatically adjust the sound quality according to the differences in the ear canals of different users, thereby exerting the best sound quality effect.

Contents of the invention

The object of the present invention is to provide an auto-tuning earphone that can automatically adjust the sound quality according to the differences in the ear canals of different users, thereby exerting the best sound quality effect.

Another object of the present invention is to provide an earphone tuning method that can automatically adjust the sound quality according to the different ear canals of different users, so as to exert the best sound quality effect.

In order to achieve the above object, the automatic tuning earphone provided by the present invention includes an audio signal input device, a loudspeaker, a microphone, an accessible memory and an arithmetic unit, and the audio signal input device has a standard test audio signal and outputs the test audio signal. Audio signal, the speaker receives the test audio signal output by the audio signal input device and produces sound, the microphone extends into the human ear canal, the microphone receives the sound transmitted from the speaker to the human ear canal and outputs a contrast audio signal, the possible The access memory accesses the comparison audio signal output by the microphone, the arithmetic unit extracts the test audio signal and the comparison audio signal for comparison operation processing and obtains the frequency that needs to be strengthened, and the accessible memory accesses the required Enhanced frequency, the arithmetic unit performs calculation and enhancement processing on the audio signal output by the external audio output terminal device according to the frequency that needs to be enhanced according to the accessible memory access, and the audio signal output by the external audio output terminal device undergoes the operation The audio signal is input to the loudspeaker through the audio signal input device after enhanced processing.

The earphone tuning method provided by the present invention comprises the following steps: outputting a standard test audio signal; receiving the test audio signal and converting it into a sound for playback; receiving the sound transmitted to the human ear canal and converting it into a comparative audio signal for output; The comparison audio signal is accessed; the test audio signal is extracted and the comparison audio signal is compared and processed to obtain the frequency to be strengthened, and the frequency to be strengthened is accessed; the external audio frequency is analyzed according to the frequency to be strengthened The audio signal output by the output terminal device is subjected to arithmetic enhancement processing to form an enhanced audio signal; the enhanced audio signal is received and converted into a sound output.

As mentioned above, the automatic tuning earphone and the earphone tuning method of the present invention send a test sound to the human ear canal, and the sound produces different return sounds in different human ear canals, and calculates the frequency of the returned sound signal that needs to be strengthened by the arithmetic unit. point, and then compare and calculate the sound signal to be played according to the frequency point that needs to be strengthened, so as to obtain the strengthened audio signal, and then play it to the human ear canal. The whole tuning process is automatically adjusted by the earphone without manual operation. Therefore, Auto-tuning earphones are fast, accurate, and easy to use, and the sound they play is good, and they can show the best sound effects to the ear canals of different users.

Description of drawings

Fig. 1 is a flowchart of the tuning principle of the automatic tuning earphone of the present invention.

Fig. 2 is a flow chart of the preset stage of the automatic tuning earphone of the present invention.

Fig. 3 is a flow chart of the music playing stage of the automatic tuning earphone of the present invention.

Fig. 4 is a flow chart of the earphone tuning method of the present invention.

The reference signs in the figure are explained as follows:

Audio Signal Input 111 Speaker 112

Microphone 113 Accessible memory 114

Arithmetic Unit 115 Microphone Amplifier 116

Sound Amplifier 117 Human Ear Canal 120

Frequency to be enhanced 130 External audio output terminal device 140

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1, which is a flow chart of the tuning principle of the automatic tuning earphone of the present invention. The audio signal input device 111 has a standard test audio signal and outputs the test audio signal, the speaker 112 receives the test audio signal output by the audio signal input device 111 and produces sound, and the microphone 113 extends into the human ear canal 120 , the microphone 113 receives the sound delivered by the speaker 112 to the human ear canal 120 and outputs a comparison audio signal, the accessible memory 114 accesses the comparison audio signal output by the microphone 113, and the computing unit 115 extracts a test The audio signal and the comparison audio signal are compared and processed to obtain the frequency 130 to be enhanced. The accessible memory 114 accesses the frequency 130 to be enhanced. The arithmetic unit 115 is based on the accessible memory 114 The frequency 130 to be strengthened is accessed and the audio signal output by the external audio output terminal device 140 is processed to be enhanced. The device 111 is input to the speaker 112.

Wherein, the auto-tuning earphone further includes a microphone amplifier 116 , the microphone amplifier 116 receives and amplifies the comparison audio signal output by the microphone 113 , and outputs the amplified comparison audio signal to the accessible memory 114 .

Wherein, the self-tuning earphone also includes a sound amplifier 117, and the sound amplifier 117 receives the audio signal output from the external audio output terminal device 140 input by the audio signal input device 111 and processed by the computing unit 115 and Amplify, and output the amplified audio signal to the speaker 112 for playing.

The auto-tuning earphone can also detect whether the earphone is connected to an external audio output terminal device 140 with a computing function through the computing unit 115, and if so, cancel the device on the auto-tuning earphone and use the device with a computing function connected to it instead. The external audio output terminal device 140 works; if not, it works through its own device.

Please refer to Fig. 2 and Fig. 3, the automatic tuning earphone of the present invention first detects whether the earphone is connected with the external audio output terminal device 140, if it is detected that the earphone is connected with the external audio output terminal device 140, then cancel the automatic tuning earphone. device and use the external audio output terminal device 140 connected with it to perform automatic tuning; When the device of the audio earphone itself is working, the tuning process of the auto-tuning earphone is divided into two stages: presetting and playing music. When presetting, the audio signal input device 111 outputs a standard test audio signal. Loudspeaker 112 receives the described test audio signal that described audio signal input device 111 outputs and produces a test sound, and test sound enters human body ear canal 120, because there is difference in the structure of each user's ear canal, therefore, test sound is used in each user. Different sound performances will be produced in the human ear canal. The microphone 113 is located in the human ear canal 120 to receive the sound transmitted from the speaker 112 to the human ear canal 120 and output a contrast audio signal. The microphone amplifier 116 receives the microphone The comparison audio signal output by 113 is amplified, and the amplified comparison audio signal is output to the accessible memory 114, and the accessible memory 114 accesses the comparison audio signal output by the microphone 113, and the computing unit 115 extracting the test audio signal and comparing the audio signal for comparison and processing to obtain the frequency 130 to be enhanced, and accessing the frequency 130 to be enhanced through the accessible memory 114 . When playing music, the computing unit 115 performs calculation enhancement processing on the audio signal output by the external audio output terminal device 140 according to the frequency 130 that needs to be strengthened according to the accessible memory 114 access, and the audio signal output by the external audio output terminal device 140 After the signal is strengthened by the arithmetic unit 115, it is input to the sound amplifier 117 through the audio signal input device 111. The sound amplifier 117 amplifies the audio signal and outputs the amplified audio signal to the speaker 112. The speaker 112 plays music to the ear canal 120 of the human body.

Please refer to Fig. 4 again, it is the flowchart of earphone tuning method of the present invention, and this method comprises the steps:

Step S201, outputting a standard test audio signal;

Step S202, receiving the test audio signal and converting it into sound for playing;

Step S203, receiving the sound delivered to the human ear canal and converting it into a comparative audio signal for output;

Step S204, accessing the comparison audio signal; the step (4) further includes a step of amplifying and accessing the comparison audio signal.

Step S205, extracting the test audio signal and the comparison audio signal for comparison operation processing to obtain the frequency to be enhanced;

Step S206, accessing the frequency to be strengthened;

Step S207, according to the access frequency to be strengthened, the audio signal output by the external audio output terminal device is processed and strengthened to form a strengthened audio signal;

Step S208, receiving the enhanced audio signal, amplifying the received enhanced audio signal; converting the amplified enhanced audio signal into a sound output.

As mentioned above, the automatic tuning earphone and the earphone tuning method of the present invention send a test sound to the ear canal 120 of the human body, and the sound produces different return sounds in different ear canals of the human body. Enhanced frequency 130, and then compare and calculate the sound signal to be played according to the frequency 130 that needs to be enhanced, so as to obtain an enhanced audio signal, and then play it to the human ear canal 120. The entire tuning process is automatically adjusted by the earphone without manual work Therefore, the auto-tuning earphone is fast, accurate, and easy to use, and the sound performance is good, and it can show the best sound effect to the ear canals of different users.

Claims (6)

1. an automatic tuning earphone is characterized in that, comprising:

Audio signal loader, described audio signal loader have the test audio signal of standard and export described test audio signal;

Loud speaker, the test audio signal of described loud speaker received audio signal loader output also produces sound;

Microphone, described microphone stretches in the human antrum auris, and described microphone receives loud speaker and is passed to the sound in the human antrum auris and exports the contrast audio signal;

But access/memory body, but the contrast audio signal of described access/memory body access microphone output;

Arithmetic unit, described arithmetic unit extracts compare calculation process and draw the frequency that needs reinforcement of test audio signal and contrast audio signal, but the described frequency that needs reinforcement of described access/memory body access is strengthened handling but described arithmetic unit carries out computing according to the audio signal of the frequency of the need reinforcement of access/memory body access and audio frequency outlet terminal device output to external world;

The audio signal of external audio outlet terminal device output is strengthened handling the back through described arithmetic unit and is inputed to described loud speaker by described audio signal loader.

2. automatic tuning earphone as claimed in claim 1, it is characterized in that: also comprise amplifier of microphone, described amplifier of microphone receives the contrast audio signal of described microphone output and amplifies, but the contrast audio signal output that amplifies is arrived described access/memory body.

3. automatic tuning earphone as claimed in claim 1, it is characterized in that: also comprise sound intensifier, the audio signal of the external audio outlet terminal device output after the described arithmetic unit of process that described sound intensifier receives the input of described audio signal loader is strengthened handling is also amplified, and the audio signal output that amplifies is play to described loud speaker.

4. an earphone tuning method is characterized in that, comprises the steps:

(1) test audio signal of outputting standard;

(2) receive described test audio signal and convert sound to and play;

(3) reception is passed to the sound in the human antrum auris and converts the contrast audio signal output to;

(4) described contrast audio signal is carried out access;

(5) extract compare calculation process and draw the frequency that needs reinforcement of test audio signal and contrast audio signal;

(6) the described frequency that needs reinforcement of access;

(7) according to the frequency of the need reinforcement of access to external world the audio signal of audio frequency outlet terminal device output carry out computing and strengthen handling and form and strengthen audio signal;

(8) receive described reinforcement audio signal and convert voice output to.

5. earphone tuning method as claimed in claim 4 is characterized in that described step

(4) further comprise described contrast audio signal is amplified and the step of access.

6. earphone tuning method as claimed in claim 4 is characterized in that described step (8) further comprises the steps:

The described reinforcement audio signal that (81) will receive is amplified;

(82) convert described reinforcement audio signal to voice output through amplifying.

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