CN103768698A - Sound effect processing circuit of hypnotizing device - Google Patents
Sound effect processing circuit of hypnotizing device Download PDFInfo
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- CN103768698A CN103768698A CN201410018207.1A CN201410018207A CN103768698A CN 103768698 A CN103768698 A CN 103768698A CN 201410018207 A CN201410018207 A CN 201410018207A CN 103768698 A CN103768698 A CN 103768698A
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Abstract
The invention discloses a sound effect processing circuit of a hypnotizing device. The sound effect processing circuit of the hypnotizing device comprises a microcontroller, a hypnotizing sound source circuit, a power amplification circuit, a loudspeaker and a digital volume control circuit, wherein an audio signal input end of the power amplification circuit is connected with an audio output end of the digital volume control circuit and an audio input end of the digital volume control circuit is connected with an output end of the hypnotizing sound source circuit; a control signal input end of the digital volume control circuit is connected with a control signal output end of the microcontroller and the microcontroller controls the power amplification circuit through the digital volume control circuit to drive the loudspeaker to play hypnotizing speech or music with an echoing sound effect. The sound effect processing circuit of the hypnotizing device has the advantages that, by producing the hypnotizing speech or music with the echoing sound effect, the people to be hypnotized can be enabled to easily have a sleeping consciousness and the sleeping effect is good.
Description
[technical field]
The present invention relates to hypnotic device, relate in particular 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 playing device for playing hypnosis information, switching device for playing device described in opening and closing, and for generating the information generation device of described hypnosis information, wherein, described information generation device comprise for store hypnosis phrase and by described hypnosis phrase be combined into the language chip of hypnosis statement, for storing the Music Clip of hypnosis music, and for by the first assembled unit of the synthetic hypnosis information of described hypnosis statement and hypnosis music group.The hypnotic device of this disclosure of the invention, by hypnosis phrase and music are carried out to different combinations and variation, 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 hypnotic device sound effect processing circuit that a kind of hypnotic effect is good.
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 numeral volume control circuit control signal input termination microcontroller, microcontroller drives speaker to play hypnosis voice or the music of reverberating audio by digital volume control circuit control power amplifier.
Above-described hypnotic device sound effect processing circuit, numeral volume control circuit comprises integrated electronic potentiometer, the resistance of numeral volume control circuit integrated electronic potentiometer changes according to the given sinusoidal wave rule of microcontroller, the output level of numeral volume control circuit control power amplifier changes by described sinusoidal wave rule, realizes the audio frequency output of reverberating audio.
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, outwards one group of ultrasound wave of transmitting of the ultrasonic emitting probe of ultrasonic listening circuit; Ultrasound wave is accepted probe and is received the ultrasonic signal input microcontroller reflecting; 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, sinusoidal wave frequency is divided into a plurality of periods from high to low.
Above-described hypnotic device sound effect processing circuit, microcontroller changes described sinusoidal wave frequency according to the frequency of reverberation change of distance and amplitude.
Above-described hypnotic device sound effect processing circuit, period length and volume that microcontroller is play by digital volume control circuit control power amplifier according to the frequency of reverberation change of distance and amplitude.
Above-described hypnotic device sound effect processing circuit, described digital volume control circuit is integrated circuit numeral volume IC.
Hypnotic device sound effect processing circuit of the present invention reverberates hypnosis voice or the music of audio by generation, make hypnotic easily produce sleep consciousness, falls 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.
[specific embodiment]
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 numeral volume control circuit control signal input termination microcontroller, microcontroller drives speaker to play hypnosis voice or the music of reverberating audio by digital volume control circuit control power amplifier.
Numeral volume control circuit control signal input is connected with the first control signal outfan of microcontroller, and microcontroller drives speaker to play hypnosis voice or the music of reverberating audio by digital volume control circuit control power amplifier.
Numeral volume control circuit (digital volume IC) comprises electronic potentiometer, as shown in Figure 2, the resistance of numeral volume control circuit electronic potentiometer changes according to the given sinusoidal wave rule of microcontroller, the output level of numeral volume control circuit control power amplifier changes by sinusoidal wave rule, realizes the audio frequency output of reverberating audio.(in Fig. 2, vertical coordinate is modulation gain, and abscissa is modulation period).
The I2C COM port of microcontroller sends to resistance data the I2C port of digital volume IC, and digital volume IC says that data deposit in the depositor of volume electronic potentiometer after successfully receiving data, by the level value of this change output audio signal.When microcontroller sends electronic potentiometer sine wave period numerical tabular continuously, can realize continuous easypro dormancy sound wave and reverberate audio.
After some cycles, if rest person has entered relative resting state, microcontroller slows down the time of reading sinusoidal wave number table, reduces the dormancy sound wave frequency of relaxing; When rest person enters after the state of sleeping soundly, microcontroller is turned volume down, until quiet, enter resting state.
The detection of rest person's state is adopted to ultrasonic listening circuit.
The signal output part of ultrasonic listening circuit connects microcontroller.Microcontroller sends out frequency 40KHz pulse several to ultrasonic listening circuit every tens of millisecond by port, after amplifying, promote outwards one group of ultrasound wave of transmitting of ultrasonic emitting probe, after the ultrasound wave sending runs into object and reflects, accepting probe through ultrasound wave receives, detect and calculate the time difference that receives the ultrasonic signal that returns and transmitting ultrasonic signal by microcontroller, thereby calculate transmitting object spacing, microcontroller according to beam back according to the frequency of reverberation change of distance and amplitude, can judge whether the people on bed falls asleep, as detected, distance is continuous changes, the frequency changing is larger, illustrate that people can not fall asleep.
Microcontroller changes sinusoidal wave frequency according to the frequency of reverberation change of distance and amplitude.And period length and the volume play by digital volume control circuit control power amplifier.
Sinusoidal wave frequency can be divided into multiple periods from high to low, and sinusoidal wave frequency reference frequency of brain wave is preferably 1Hz-13Hz.For example, be the modulation period that sinusoidal wave frequency is set by Single-chip Controlling: in 7-13Hz frequency range, in work 15 minutes, 4-8Hz frequency range, in work 15 minutes, the following frequency range of 4Hz, work 30 minutes, one-period are 60 minutes, with this automatic operation that circulates.
Along with rest person's action frequency and the movement range of measuring reduces, when hypnosis music, segment length and volume reduce thereupon, until the people on bed fall asleep after hypnosis music close completely.
The electronics melody of the above embodiment of the present invention has increased and has reverberated after sound effect processor, the sound that speaker sends, and exactly liking has fan blade gently rotation is the same in face of it; Also as speaker this in front and back rotations, near time far away when sound, convolution is drifted, and has produced the one sense of vacillating, and makes hypnotic easily produce sleep and realizes, and falls asleep effective.
Claims (8)
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 numeral volume control circuit control signal input termination microcontroller, microcontroller drives speaker to play hypnosis voice or the music of reverberating audio by digital volume control circuit control power amplifier.
2. hypnotic device sound effect processing circuit according to claim 1, it is characterized in that, numeral volume control circuit comprises integrated electronic potentiometer, the resistance of numeral volume control circuit integrated electronic potentiometer changes according to the given sinusoidal wave rule of microcontroller, the output level of numeral volume control circuit control power amplifier changes by described sinusoidal wave rule, realizes the audio frequency output of reverberating audio.
3. hypnotic device sound effect processing circuit according to claim 2, 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, outwards one group of ultrasound wave of transmitting of the ultrasonic emitting probe of ultrasonic listening circuit; Ultrasound wave is accepted probe and is received the ultrasonic signal input microcontroller reflecting; Microcontroller, by the time difference of ultrasonic emitting and reception, calculates the distance of reverberation.
4. hypnotic device sound effect processing circuit according to claim 2, is characterized in that, the second control signal outfan of the control signal input termination microcontroller of hypnosis sounding circuit.
5. 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 periods from high to low.
6. hypnotic device sound effect processing circuit according to claim 3, is characterized in that, microcontroller changes described sinusoidal wave frequency according to the frequency of reverberation change of distance and amplitude.
7. hypnotic device sound effect processing circuit according to claim 3, is characterized in that, period length and volume that microcontroller is play by digital volume control circuit control power amplifier according to the frequency of reverberation change of distance and amplitude.
8. 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 CN103768698B (en) | 2015-11-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023024717A1 (en) * | 2021-08-25 | 2023-03-02 | 安徽华米健康科技有限公司 | Method and apparatus for generating sleep-aid music |
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023024717A1 (en) * | 2021-08-25 | 2023-03-02 | 安徽华米健康科技有限公司 | Method and apparatus for generating sleep-aid music |
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| CN103768698B (en) | 2015-11-18 |
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