CN103768698B - A kind of hypnotic device sound effect processing circuit - Google Patents
A kind of hypnotic device sound effect processing circuit Download PDFInfo
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- CN103768698B CN103768698B CN201410018207.1A CN201410018207A CN103768698B CN 103768698 B CN103768698 B CN 103768698B CN 201410018207 A CN201410018207 A CN 201410018207A CN 103768698 B CN103768698 B CN 103768698B
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Abstract
The invention discloses a kind of hypnotic device sound effect processing circuit, comprise microcontroller, hypnosis sounding circuit, power amplifier, speaker and digital volume control circuit, the audio signal input end of power amplifier connects the audio output of digital volume control circuit, and the audio input end of digital volume control circuit connects the outfan of hypnosis sounding circuit; The control signal outfan of digital volume control circuit control signal input termination microcontroller, microcontroller controls power amplifier by digital volume control circuit and drives speaker to play hypnosis voice or the music of reverberating audio.Hypnosis voice or the music of audio are reverberated in the present invention by producing, make hypnotic easily produce sleep consciousness, fall asleep effective.
Description
[technical field]
The present invention relates to hypnotic device, particularly relate to a kind of hypnotic device sound effect processing circuit.
[background technology]
Conventional hypnotic device has voice hypnosis and musical hypnotizing device, musical hypnotizing device.Chinese invention patent (application number: CN200820212305.9) discloses a kind of hypnotic device, comprise the playing device for playing hypnosis information, for opening and closing the switching device of described playing device, and for generating the information generation device of described hypnosis information, wherein, described information generation device comprises for storing hypnosis phrase and described hypnosis phrase being combined into the language chip of hypnosis statement, being used for storing the Music Clip of hypnosis music, and for the first assembled unit by described hypnosis statement and hypnosis music group synthesis hypnosis information.The hypnotic device of this disclosure of the invention, by carrying out different combinations and change to hypnosis phrase and music, improves hypnotic effect.
But traditional hypnotic device adopts constant volume to play voice or music, is difficult to obtain better hypnotic effect.
[summary of the invention]
The technical problem to be solved in the present invention is to provide the good hypnotic device sound effect processing circuit of a kind of hypnotic effect.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of hypnotic device sound effect processing circuit, comprise microcontroller, hypnosis sounding circuit, power amplifier, speaker and digital volume control circuit, the audio signal input end of power amplifier connects the audio output of digital volume control circuit, and the audio input end of digital volume control circuit connects the outfan of hypnosis sounding circuit; The control signal outfan of digital volume control circuit control signal input termination microcontroller, microcontroller controls power amplifier by digital volume control circuit and drives speaker to play hypnosis voice or the music of reverberating audio.
Above-described hypnotic device sound effect processing circuit, digital volume control circuit comprises integrated electronic potentiometer, the resistance of digital volume control circuit integrated electronic potentiometer changes according to the sinusoidal wave rule that microcontroller is given, digital volume control circuit controls the output level of power amplifier by described sinusoidal wave rule change, and the audio frequency realizing reverberating audio exports.
Above-described hypnotic device sound effect processing circuit, comprises ultrasonic listening circuit, and the signal output part of ultrasonic listening circuit connects microcontroller; Microcontroller sends pulse signal to ultrasonic listening circuit off and on, and the ultrasonic emitting probe of ultrasonic listening circuit outwards launches one group of ultrasound wave; Ultrasound wave accepts probe and receives the ultrasonic signal input microcontroller reflected; Microcontroller, by the time difference of ultrasonic emitting and reception, calculates the distance of reverberation.
Above-described hypnotic device sound effect processing circuit, the second control signal outfan of the control signal input termination microcontroller of hypnosis sounding circuit
Above-described hypnotic device sound effect processing circuit, described sinusoidal wave frequency is 1Hz-13Hz, and sinusoidal wave frequency is divided into a plurality of period from high to low.
Above-described hypnotic device sound effect processing circuit, microcontroller changes described sinusoidal wave frequency according to the frequency of reverberation distance change and amplitude.
Above-described hypnotic device sound effect processing circuit, microcontroller controls period length and the volume of power amplifier broadcasting according to the frequency of reverberation distance change and amplitude by digital volume control circuit.
Above-described hypnotic device sound effect processing circuit, described digital volume control circuit is Integrated circuit digital volume IC.
Hypnotic device sound effect processing circuit of the present invention reverberates hypnosis voice or the music of audio by producing, make hypnotic easily produce sleep consciousness, fall asleep effective.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the theory diagram of embodiment of the present invention hypnotic device sound effect processing circuit.
Fig. 2 is digital volume control circuit integrated electronic potentiometer sine wave modulation figure.
[detailed description of the invention]
Embodiment of the present invention hypnotic device sound effect processing circuit as shown in Figure 1, comprises microcontroller (single-chip microcomputer), controls button, LCD display, hypnosis sounding circuit, power amplifier, speaker, digital volume control circuit and ultrasonic listening circuit.
The audio signal input end of power amplifier connects the audio output of digital volume control circuit, and the audio input end of digital volume control circuit connects the outfan of hypnosis sounding circuit; The control signal outfan of digital volume control circuit control signal input termination microcontroller, microcontroller controls power amplifier by digital volume control circuit and drives speaker to play hypnosis voice or the music of reverberating audio.
Digital volume control circuit control signal input is connected with the first control signal outfan of microcontroller, and microcontroller controls power amplifier by digital volume control circuit and drives speaker to play hypnosis voice or the music of reverberating audio.
Digital volume control circuit (digital volume IC) comprises electronic potentiometer, as shown in Figure 2, the resistance of digital volume control circuit electronic potentiometer changes according to the sinusoidal wave rule that microcontroller is given, digital volume control circuit controls the output level of power amplifier by sinusoidal wave rule change, and the audio frequency realizing reverberating audio exports.(in fig. 2, vertical coordinate is modulation gain, and abscissa is modulation period).
Resistance data are sent to the I2C port of digital volume IC by the I2C COM port of microcontroller, and digital volume IC says after successfully receiving data in the depositor of data stored in volume electronic potentiometer, change the level value of output audio signal by this.Microcontroller can realize the continuous print dormancy sound wave that relaxes and reverberate audio when sending electronic potentiometer sine wave period numerical tabular continuously.
After some cycles, if rest person has entered relative resting state, microcontroller has slowed down the time of reading sinusoidal wave number table, namely reduces dormancy sound wave frequency of relaxing; After rest person enters the state of sleeping soundly, volume is turned down by microcontroller, until quiet, enters resting state.
Ultrasonic listening circuit is adopted to the detection of rest person's state.
The signal output part of ultrasonic listening circuit connects microcontroller.Microcontroller sends out frequency 40KHz pulse several to ultrasonic listening circuit every several ms by port, after amplifying, promote ultrasonic emitting probe outwards launch one group of ultrasound wave, the ultrasound wave sent runs into after reflections off objects is returned and accepts probe reception through ultrasound wave, detected by microcontroller and calculate and receive the ultrasonic signal returned and the time difference of launching ultrasonic signal, thus calculate launching objects spacing, microcontroller is according to the frequency according to the change of reverberation distance beamed back and amplitude, can judge whether the people on bed falls asleep, as detected distance constantly change, the frequency of change is larger, illustrate that people can not fall asleep.
Microcontroller changes sinusoidal wave frequency according to the frequency of reverberation distance change and amplitude.And period length and the volume of power amplifier broadcasting is controlled by digital volume control circuit.
Sinusoidal wave frequency can be divided into multiple period from high to low, and sinusoidal wave frequency reference frequency of brain wave is preferably 1Hz-13Hz.Such as, the modulation period that sinusoidal wave frequency is set by Single-chip Controlling is: 7-13Hz frequency ranges of operation 15 minutes, 4-8Hz frequency ranges of operation 15 minutes, below 4Hz frequency ranges of operation 30 minutes, one-period are 60 minutes, with this automatic operation that circulates.
Along with the action frequency of rest person measured and movement range reduce, hypnosis music Period Length and volume reduce thereupon, until the people on bed fall asleep after hypnosis music close completely.
After the electronics melody of the above embodiment of the present invention adds and reverberates sound effect processor, the sound that speaker sends, exactly likes and has fan blade gently to rotate equally in face of it; Also as speaker, this rotates in front and back, and near time far away during sound, convolution is drifted, and creates one and to vacillate sense, make hypnotic easily produce sleep and realize, fall asleep effective.
Claims (7)
1. a hypnotic device sound effect processing circuit, it is characterized in that, comprise microcontroller, hypnosis sounding circuit, power amplifier, speaker and digital volume control circuit, the audio signal input end of power amplifier connects the audio output of digital volume control circuit, and the audio input end of digital volume control circuit connects the outfan of hypnosis sounding circuit; The control signal outfan of digital volume control circuit control signal input termination microcontroller, microcontroller controls power amplifier by digital volume control circuit and drives speaker to play hypnosis voice or the music of reverberating audio; Digital volume control circuit comprises integrated electronic potentiometer, the resistance of digital volume control circuit integrated electronic potentiometer changes according to the sinusoidal wave rule that microcontroller is given, digital volume control circuit controls the output level of power amplifier by described sinusoidal wave rule change, and the audio frequency realizing reverberating audio exports.
2. hypnotic device sound effect processing circuit according to claim 1, is characterized in that, comprises ultrasonic listening circuit, and the signal output part of ultrasonic listening circuit connects microcontroller; Microcontroller sends pulse signal to ultrasonic listening circuit off and on, and the ultrasonic emitting probe of ultrasonic listening circuit outwards launches one group of ultrasound wave; Ultrasound wave receiving transducer receives the ultrasonic signal input microcontroller reflected; Microcontroller, by the time difference of ultrasonic emitting and reception, calculates the distance of reverberation.
3. hypnotic device sound effect processing circuit according to claim 1, is characterized in that, the second control signal outfan of the control signal input termination microcontroller of hypnosis sounding circuit.
4. hypnotic device sound effect processing circuit according to claim 3, is characterized in that, described sinusoidal wave frequency is 1Hz-13Hz, and sinusoidal wave frequency is divided into a plurality of period from high to low.
5. hypnotic device sound effect processing circuit according to claim 2, is characterized in that, microcontroller changes described sinusoidal wave frequency according to the frequency of reverberation distance change and amplitude.
6. hypnotic device sound effect processing circuit according to claim 2, is characterized in that, microcontroller controls period length and the volume of power amplifier broadcasting according to the frequency of reverberation distance change and amplitude by digital volume control circuit.
7. hypnotic device sound effect processing circuit according to claim 1, is characterized in that, described digital volume control circuit is digital volume IC integrated circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410018207.1A CN103768698B (en) | 2014-01-15 | 2014-01-15 | A kind of hypnotic device sound effect processing circuit |
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| CN201410018207.1A CN103768698B (en) | 2014-01-15 | 2014-01-15 | A kind of hypnotic device sound effect processing circuit |
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| CN103768698B true CN103768698B (en) | 2015-11-18 |
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| CN107166347A (en) * | 2017-06-30 | 2017-09-15 | 上海唯源光电科技有限公司 | It is a kind of that there is the light fixture for aiding in sleep function |
| CN115721830A (en) * | 2021-08-25 | 2023-03-03 | 安徽华米健康科技有限公司 | Method and device for generating sleep-aid music, computer equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576185A (en) * | 1968-06-19 | 1971-04-27 | Saba Gmbh | Sleep-inducing method and arrangement using modulated sound and light |
| CN2601102Y (en) * | 2003-01-07 | 2004-01-28 | 石晓阳 | Sleep quality improving gauge |
| CN201379876Y (en) * | 2009-02-23 | 2010-01-13 | 邢玉栋 | Health-care hypnosis device |
| CN201727828U (en) * | 2009-07-06 | 2011-02-02 | 李隆 | Musical sleep sound device |
-
2014
- 2014-01-15 CN CN201410018207.1A patent/CN103768698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576185A (en) * | 1968-06-19 | 1971-04-27 | Saba Gmbh | Sleep-inducing method and arrangement using modulated sound and light |
| CN2601102Y (en) * | 2003-01-07 | 2004-01-28 | 石晓阳 | Sleep quality improving gauge |
| CN201379876Y (en) * | 2009-02-23 | 2010-01-13 | 邢玉栋 | Health-care hypnosis device |
| CN201727828U (en) * | 2009-07-06 | 2011-02-02 | 李隆 | Musical sleep sound device |
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