CN110743075A - Voice method and system for promoting auditory language cerebral cortex development of premature infant - Google Patents
Voice method and system for promoting auditory language cerebral cortex development of premature infant Download PDFInfo
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- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
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- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
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Abstract
The invention discloses a voice method and a voice system for promoting the development of auditory language cerebral cortex of a premature infant. The method comprises the following steps: s1, recording pure heart sound and mixed sound of heart sound and voice of the mother of the premature infant; s2, storing the recorded sound, and processing the sound to form intrauterine environmental sound; and S3, acquiring intrauterine environmental sounds stored in the cloud server and playing the intrauterine environmental sounds. The voice method and the voice system for promoting the auditory language cerebral cortex development of the premature infant have the function of creating the uterine environment sound, create a familiar intrauterine sound environment for the premature infant and can promote the auditory language cerebral cortex development of the premature infant.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a voice method and a system for promoting the development of the auditory language cerebral cortex of a premature infant
Background
Studies by professor Amir Lahav of harvard medical school have demonstrated that the auditory cortex of a premature infant is more adaptive to the sound of a uteroid mother than to environmental noise, and that the sound of a premature infant touching the mother may provide the necessary auditory adaptation capability for the newborn to shape the brain for hearing and speech development.
Premature infants are born in a critical stage of auditory brain development. However, when a premature neonate enters the Neonatal Intensive Care Unit (NICU), the mother's acoustic environment provided by the uterus disappears after the preterm birth. The sudden transition of the fetus from a protected uterine environment to a hospital exposure presents a significant challenge to the developing brain. These challenges are associated with neuropathological consequences, including reduced brain volume in the area of preterm infants, abnormal white matter microstructure, and poor cognitive and linguistic abilities compared to term newborns.
Given the acoustic differences between neonatal intensive care unit environment and the uterus, it is not surprising that the auditory brain development of premature infants is impaired compared to full-term infants. Many studies have shown that the auditory environment of premature infants in neonatal intensive care units can be detrimental to their neurological development. These concerns stem from the current situation in most hospitals in that newborn babies of premature infants are exposed to loud, harmful and unpredictable environmental noises generated by ventilators, infusion pumps, fans, telephones, pagers, monitors and alarms, while at the same time they are deprived of low frequency, patterned, and biologically familiar mother's voice and heartbeat. In addition, hospital environments contain a large amount of high frequency electronic sounds that are unlikely to be heard in the uterus due to the attenuation of sounds provided by maternal tissues and intrauterine fluids.
The World Health Organization (WHO) reports show that about 1500 more than ten thousand premature infants are born worldwide per year, with a birth rate of about 10% per year in china. The relevant experts expect that, with the release of the two-fetus policy, China is receiving a new birth peak, and simultaneously, the number of premature babies or the number of premature babies will increase in stages due to the growing number of newborns and the higher incidence rate of premature birth of the two-fetus old pregnant women.
The prior infant incubator in the newborn NICU does not have the function of creating uterine environment sound, so a device capable of playing mother sound and heartbeat sound is designed and integrated into the prior infant incubator to create a familiar intrauterine sound environment for a premature infant, and the incubator has important significance for promoting the hearing of the premature infant and the development of language.
Disclosure of Invention
The invention aims to provide a voice method for promoting the auditory language cerebral cortex development of premature infants so as to overcome the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a speech method for promoting auditory language cortical development in a premature infant, comprising the steps of:
s1, recording pure heart sound and mixed sound of heart sound and voice of the mother of the premature infant;
s2, storing the recorded sound, and processing the sound to form intrauterine environmental sound;
and S3, acquiring intrauterine environmental sounds stored in the cloud server and playing the intrauterine environmental sounds.
Further, the specific process of recording the pure heart sound and the mixed sound of the heart sound and the voice of the preterm mother in the step S1 includes:
s11, in a quiet environment, firstly, recording not less than three segments of pure heart sounds with each segment of pure heart sounds being not less than thirty seconds at the heart position of the mother of the premature infant by using a heart sound stethoscope;
s12, step S11, the stethoscope is kept at the mother' S heart position, and the recording of the voice of the mother of the premature infant is continued, wherein the voice at least comprises speaking a section of speech, reading a section of text and singing a song, so as to record the mixed sound of the heart sound and the voice.
Further, the specific steps of processing the sound recorded in step S2 are as follows:
s21, low-pass filtering the sound recorded in the step S11 and the step S12;
s22, performing gain adjustment on the low-pass filtered sound, and adjusting the output to the range of 55 +/-5 dBA;
s23, cutting and mixing the sounds recorded in the steps S11 and S12 to form pure heart sounds and mixed sounds which are alternated, wherein the mixed sounds account for 10% -80% of a segment of restored intrauterine environmental sounds.
Further, step S21 is preceded by:
and S20, respectively taking out the voice and the heart sound in the mixed sound in a spectrum separation mode, and remixing the voice and the heart sound again at the time point when the heart sound reaches the first set value to form new mixed sound.
Further, in the step S3, the maximum playback volume does not exceed 60dBA, and the playback sound frequency is 30-500 Hz.
Further, the playing rule in step S3 is: playing for four to ten times every day, playing for 30-60 minutes each time, wherein the interval between two adjacent times of playing is 30-60 minutes, and stopping playing at midnight time of 0: 00-5: 00.
The present invention also provides a speech system for promoting the development of the auditory language cerebral cortex of a premature infant, comprising:
the sound recording module is used for recording pure heart sound and mixed sound of heart sound and voice of the mother of the premature infant;
the cloud server is used for storing the recorded pure heart sounds and mixed sounds and processing the pure heart sounds and the mixed sounds to form intrauterine environmental sounds;
the mobile terminal is used for acquiring intrauterine environmental sounds stored in the cloud server according to needs;
and the sound playing module is used for playing the intrauterine environmental sound acquired by the mobile terminal.
Further, including memory and treater in the cloud server, the memory is used for storing the mixed sound of recording, include in the treater:
the FIR low-pass filtering module is used for carrying out low-pass filtering on the stored sound, and the cut-off frequency of the FIR low-pass filtering module is 500 Hz;
and the gain adjusting module is used for adjusting the gain of the sound after the low-pass filtering and adjusting the output to be within the range of 55 +/-5 dBA.
Further, the processor further comprises:
the frequency spectrum separation module is used for respectively extracting the voice and the heart sound in the mixed sound in a frequency spectrum separation mode;
and the sound mixing module is used for remixing the voice and the heart sound again at the time point when the heart sound separated by the frequency spectrum separation module reaches the first set value so as to form new mixed sound.
Furthermore, the sound playing module is externally arranged in the infant incubator or internally arranged in the infant incubator.
Compared with the prior art, the invention has the advantages that: the voice method for promoting the auditory language cerebral cortex development of the premature infant has the function of creating uterine environment sound, creates a familiar intrauterine sound environment for the premature infant, and can promote the auditory language cerebral cortex development of the premature infant.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of the present speech method for promoting auditory language cortical development in a premature infant.
Fig. 2 is a specific flowchart of recording heart sounds and voices of a mother of a premature infant in an embodiment of the present application.
Fig. 3 is a specific flowchart of processing for mixing sounds in the embodiment of the present application.
Fig. 4 is a block diagram of a speech system for promoting the development of the auditory language cortex of a premature infant according to the present application.
Fig. 5 is a framework diagram of a cloud server according to an embodiment.
Fig. 6 is a block diagram of a processor according to an embodiment.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides a speech method for promoting the development of auditory language cerebral cortex of a premature infant, comprising the steps of:
step S1, recording a mixed sound of the pure heart sound and the heart sound voice of the preterm infant mother, which is described with reference to fig. 2, specifically includes: s11, adopting the stethoscope mentioned in patent CN208926417U, recording not less than three segments of pure heart sounds with each segment of no less than thirty seconds at the heart position of the mother of the premature infant by using the heart sound stethoscope under the quiet environment; s12, step S11, the stethoscope is kept at the mother' S heart position, and the recording of the voice of the mother of the premature infant is continued, wherein the voice at least comprises speaking a section of speech, reading a section of text and singing a song, so as to record the mixed sound of the heart sound and the voice.
Step S2, storing the recorded pure heart sound and heart sound mixed sound, and processing the sound to form intrauterine environmental sound, that is, after the recording is completed, uploading the sound file to the cloud for storage, where the original files may contain some noise, or the mixed sequence of the sound and the heart sound is not suitable for long-term playing during the recording process of mom. The cloud processor performs appropriate editing processing on the original data according to needs, such as adjusting the mother's heart sound, the voice sequence and some noise reduction processing, so that the sound file can restore the real intrauterine environmental sound, and the brain development is better promoted. As described with reference to fig. 3, the specific processing procedure is as follows:
s20, the voice and the heart sound in the mixed sound are respectively taken out in a frequency spectrum separation mode according to needs, and the voice and the heart sound are remixed at the time point when the heart sound reaches a first set value (which can be determined according to actual conditions) to form a new mixed sound, so that the problem of imbalance of strong voice or strong heart sound possibly generated when a mother records is avoided; s21, the sound recorded in the step S11 and the step S12 is low-pass filtered by an FIR low-pass filter with the cut-off frequency of 500Hz, so that a sensitive and familiar bass environment is created for the premature infant; s22, performing gain adjustment on the low-pass filtered sound, and adjusting the output to be within the range of 55 +/-5 dBA to avoid overlarge or undersize sound so as to achieve a better promotion effect; s23 and S23 clip and mix the sounds recorded in the step S11 and the step S12 to form pure heart sounds and mixed sounds which are alternated, wherein the mixed sounds account for 10 to 80 percent of a segment of restored intrauterine environmental sounds. The ratio of the mixed sound can be selected by an operator in actual operation.
Step S3, when the premature infant needs the sound files, intrauterine environmental sounds stored in the cloud server can be directly obtained and played. During playing, the audio can be played in the infant incubator or outside the infant incubator, the maximum playing volume does not exceed 60dBA, the playing sound frequency is 30-500Hz, and the playing rule is as follows: playing for four to ten times every day, playing for 30-60 minutes each time, wherein the interval between two adjacent times of playing is 30-60 minutes, and stopping playing at midnight time of 0: 00-5: 00.
Referring to fig. 4, the present invention also provides a speech system for promoting the development of the auditory language cerebral cortex of a premature infant, comprising: the sound recording module 100 is used for recording pure heart sound and voice mixed sound of the mother of the premature infant; the cloud server 200 is used for storing the recorded sound and processing the sound to form intrauterine environmental sound; the mobile terminal 300 is used for acquiring intrauterine environmental sounds stored in the cloud server according to needs; and the sound playing module 400 is used for playing the intrauterine environmental sound acquired by the mobile terminal.
Referring to fig. 5, the cloud server 200 includes a memory 201, a processor 202, and a network interface 203, where the memory 201 is used to store the recorded mixed sound.
It is noted that fig. 5 only shows the cloud server 200 with components 201 and 203, but it is understood that not all of the shown components are required to be implemented, and more or fewer components may be implemented instead. As will be understood by those skilled in the art, the cloud server 200 is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), an embedded device, and the like.
The cloud server 200 may be a desktop computer, a notebook, a palm computer, or other computing devices. The cloud server 200 can perform human-computer interaction with a user through a keyboard, a mouse, a remote controller, a touch pad or a voice control device.
The memory 201 includes at least one type of readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the storage 201 may be an internal storage unit of the cloud server 200, such as a hard disk or a memory of the cloud server 200. In other embodiments, the memory 201 may also be an external storage device of the cloud server 200, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the cloud server 200. Of course, the memory 201 may also include both an internal storage unit and an external storage device of the cloud server 200. In this embodiment, the memory 201 is generally used to store an operating system installed in the cloud server 200 and various types of application software, such as stored mixed sounds recorded by the mother of the premature infant, intrauterine environmental sounds formed after processing, and the like. Further, the memory 201 may also be used to temporarily store various types of data that have been output or are to be output.
The processor 202 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 202 is generally configured to control the overall operation of the cloud server 200. In this embodiment, the processor 202 is configured to process program codes stored in the memory 201 or process data, such as mixed sound data recorded by the mother of the premature infant stored in the memory 201.
The network interface 93 may include a wireless network interface or a wired network interface, and the network interface 93 is generally used for establishing a communication connection between the cloud server 200 and other electronic devices. For example, in this embodiment, the method and the device are used for establishing a communication connection between the sound recording module 100 and the mobile terminal 300.
Referring to fig. 6, the processor 202 includes: an FIR low-pass filtering module 2021, which performs low-pass filtering on the recorded pure heart sounds and the heart sounds and voice mixed sounds respectively, and the cut-off frequency of the FIR low-pass filtering module is 500 Hz; a gain adjustment module 2022, which performs gain adjustment on the low-pass filtered sound, and adjusts the output to a range of 55 ± 5 dBA; the spectrum separation module 2023 is configured to separately extract the speech and the heart sound in the mixed sound in a spectrum separation manner; the sound mixing module 2024 is configured to remix the speech and the heart sound at a time point when the heart sound separated by the spectrum separation module reaches the first set value, so as to form a new mixed sound.
In this embodiment, the sound playing module 400 may have a networking function, so that it can be combined with the mobile terminal 300.
The sound playing module 400 is externally arranged in the infant incubator, namely, the sound playing module is arranged in the infant incubator by medical staff when in use, and is internally arranged in the infant incubator, and the recommended playing volume is 58 +/-1 dB. The playing device needs to keep higher frequency response characteristic and distortion degree within the range of 30-500 Hz.
The voice method and the voice system for promoting the auditory language cerebral cortex development of the premature infant have the function of creating the uterine environment sound, create a familiar intrauterine sound environment for the premature infant and can promote the auditory language cerebral cortex development of the premature infant.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes or modifications may be made by the patentees within the scope of the appended claims, and within the scope of the invention, as long as they do not exceed the scope of the invention described in the claims.
Claims (10)
1. A speech method for promoting auditory language cortical development in a premature infant, comprising the steps of:
s1, recording pure heart sound and mixed sound of heart sound and voice of the mother of the premature infant;
s2, storing the recorded sound, and processing the sound to form intrauterine environmental sound;
and S3, acquiring intrauterine environmental sounds stored in the cloud server and playing the intrauterine environmental sounds.
2. The method for promoting auditory language cerebral cortex development of premature infant according to claim 1, wherein the specific procedure of recording pure heart sound and mixed heart sound and voice sound of the premature infant mother in step S1 is as follows:
s11, in a quiet environment, firstly, recording not less than three segments of pure heart sounds with each segment of pure heart sounds being not less than thirty seconds at the heart position of the mother of the premature infant by using a heart sound stethoscope;
s12, step S11, the stethoscope is kept at the mother' S heart position, and the recording of the voice of the mother of the premature infant is continued, wherein the voice at least comprises speaking a section of speech, reading a section of text and singing a song, so as to record the mixed sound of the heart sound and the voice.
3. The method of claim 2, wherein the step of processing the sound recorded in step S2 comprises:
s21, low-pass filtering the sound recorded in the step S11 and the step S12;
s22, performing gain adjustment on the low-pass filtered sound, and adjusting the output to the range of 55 +/-5 dBA;
s23, cutting and mixing the sounds recorded in the steps S11 and S12 to form pure heart sounds and mixed sounds which are alternated, wherein the mixed sounds account for 10% -80% of a segment of restored intrauterine environmental sounds.
4. The speech method for promoting auditory language cortical development of the premature infant according to claim 3, wherein the step S21 is preceded by the steps of:
and S20, respectively taking out the voice and the heart sound in the mixed sound in a spectrum separation mode, and remixing the voice and the heart sound again at the time point when the heart sound reaches the first set value to form new mixed sound.
5. The method as claimed in claim 1, wherein the maximum playback volume in step S3 is not more than 60dBA, and the playback sound frequency is 30-500 Hz.
6. The speech method for promoting auditory language cortical development of the premature infant according to claim 1, wherein the playback rules in step S3 are: playing for four to ten times every day, playing for 30-60 minutes each time, wherein the interval between two adjacent times of playing is 30-60 minutes, and stopping playing at midnight time of 0: 00-5: 00.
7. A speech system for promoting auditory speech cortical development in a premature infant, comprising:
the sound recording module is used for recording pure heart sound and mixed sound of heart sound and voice of the mother of the premature infant;
the cloud server is used for storing the recorded pure heart sounds and mixed sounds and processing the pure heart sounds and the mixed sounds to form intrauterine environmental sounds;
the mobile terminal is used for acquiring intrauterine environmental sounds stored in the cloud server according to needs;
and the sound playing module is used for playing the intrauterine environmental sound acquired by the mobile terminal.
8. The speech system for promoting auditory language cortical development of a premature infant of claim 7, wherein the cloud server includes a memory for storing the recorded pure and mixed heart sounds and a processor comprising:
the FIR low-pass filtering module is used for carrying out low-pass filtering on the stored sound, and the cut-off frequency of the FIR low-pass filtering module is 500 Hz;
and the gain adjusting module is used for adjusting the gain of the sound after the low-pass filtering and adjusting the output to be within the range of 55 +/-5 dBA.
9. The speech system for promoting auditory language cortical development of a premature infant of claim 7, wherein the processor further comprises:
the frequency spectrum separation module is used for respectively extracting the voice and the heart sound in the mixed sound in a frequency spectrum separation mode;
and the sound mixing module is used for remixing the voice and the heart sound again at the time point when the heart sound separated by the frequency spectrum separation module reaches the first set value so as to form new mixed sound.
10. The speech system for promoting auditory language cortical development of a premature infant according to claim 7, wherein the sound playing module is externally or internally arranged in the infant incubator.
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| FR3133264A1 (en) * | 2022-03-04 | 2023-09-08 | Aurore SAINTIGNY | SOUND PROCESSING AND BROADCASTING DEVICE AND METHOD FOR PROVIDING PERSONALIZED AUDIO CONTENT |
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