CN117747050A - Digital music exercise training system based on rhythmic auditory stimulus - Google Patents
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Abstract
The invention provides a digital music sports training system based on rhythmic auditory stimulus, which comprises: the acquisition module is used for acquiring the motion rhythm data of the patient; the parameter adjustment module is used for collecting the age and preference of the patient, generating a track of a corresponding style, and adjusting parameters of the track according to the movement rhythm data of the patient; and the rhythmic auditory stimulus generating module is used for generating rhythmic auditory stimulus signals after the parameters are adjusted and transmitting the rhythmic auditory stimulus signals to the playing terminal. The music in the invention emphasizes the re-beat in the rhythm, the fixed and repeated rhythm acoustic sensory signals can drive and promote rhythmic movement, a certain music beat enrichment presentation is also shown in the stable rhythm, and compared with a single beat, the complex structure of the music can promote the synchronization of patients, improve the compliance, the attention and the changing power of the patients, and have a certain effect on the gait treatment and the improvement of non-movement symptoms such as anxiety, depression or cognitive function of the parkinsonism patients.
Description
Technical Field
The invention belongs to the field of digital music, and particularly relates to a digital music exercise training system based on rhythmic auditory stimulus.
Background
Parkinson's Disease (PD) is a common, progressive aggravated neurological degenerative disease in the middle-aged and elderly. With the progress of the disease, the PD patients gradually develop gait dysfunction, the posture stability is reduced, the daily life activities are difficult to manage, the life quality of the patients is seriously reduced, and great burden is brought to families and society. Studies have shown that rhythmic entrainment, alone or by musical therapy, can provide external cues that promote motion initiation and synchronization. This is because it opens a new path, enhancing the auditory-motor coupling of the cortical layer, activating the cerebellum-thalamus-cortical circuit, bypassing the damaged striatum-cortical circuit. Thus, the patient's ability to walk, stride, balance and freeze, and bradykinesia and tremors in terms of kinematic parameters (such as speed, stride frequency, stride and speed) are improved due to better perception and timing of movement. Improvement of non-motor symptoms such as anxiety, depression or cognitive function is also described as an effect of musical therapy.
Current parkinsonism auditory stimuli have the following technical bottlenecks:
(1) The specific step frequency treatment requirements of each patient cannot be met. The rhythm perception of parkinson's disease patients is weak, the gait pace of each patient varies, and if only a few fixed speeds of therapeutic music are provided, it is not possible to match the patient's own rhythm exactly.
(2) The preference of each patient for music cannot be satisfied. Although music is one of the main carrier forms of parkinsonism auditory stimuli, the range of styles of music is broad, and patients of different ages and sexes receive different degrees of music. The music style on the market is single and lacks consideration for music preference, especially for treatment of elderly parkinsonism.
(3) The presentation style has weak relevance to music and no improvement for non-motor symptoms. Rhythmic auditory stimuli are mainly composed using external rhythmic cues. At present, rhythmic auditory stimulus in the market only has pulse rhythmic expression, so that negative moods of tension, dysphoria and phobia are easily caused, the dopamine level of a patient cannot be improved, and psychological problems such as anxiety and depression are even aggravated.
Disclosure of Invention
The digital music exercise training system based on rhythmic auditory stimulus can be applied to gait treatment of parkinsonism patients in a personalized mode by picking up exercise data through the adaptive system to match therapeutic music, and is also beneficial to non-exercise symptoms.
The present application provides a digital musical exercise training system based on rhythmic auditory stimuli, the system comprising: the acquisition module is used for acquiring the motion rhythm data of the patient; the parameter adjustment module is used for collecting the age and preference of the patient, generating a track of a corresponding style, and adjusting parameters of the track according to the movement rhythm data of the patient; and the rhythmic auditory stimulus generating module is used for generating rhythmic auditory stimulus signals after the parameters are adjusted and transmitting the rhythmic auditory stimulus signals to the playing terminal.
The acquisition module comprises a step counting sensor, and is used for calculating half of the number of times that the favorable feet of the patient touch the bottom in one minute, obtaining a reference pace, converting the reference pace into beats/minute and taking the beats/minute as the subsequent music generation speed.
The parameter adjusting module comprises a computer and is used for establishing an adaptive control method of elements in rhythmic auditory stimulus to form an elastically controllable physical model, wherein the elastic controllable physical model comprises a pitch melody music model and an impact pitch-free music model.
Wherein the adjusted parameters include speed, overtones, sound volume, loudness.
The impact pitch-free music model is mapped to a rhythm unit from the measured pace of a patient to be output, and is a model for generating main rhythmic sound parts, wherein the rhythmic sound parts specifically comprise a re-beat and a non-re-beat, and if the pace is X steps/min, the music speed is X beats/min; the re-shooting occurs once every 1/X minute from the first shooting, namely, occurs in the nth/X minute, wherein n is a continuous positive integer which is more than or equal to 1 and less than or equal to 15X; the non-re-beat occurs randomly every 1/2X min, namely, the n/2X min occurs, n is a continuous positive integer, n is more than or equal to 1 and less than or equal to 30X, and the total energy amplitude of the non-re-beat does not exceed the re-beat.
Wherein the pitch generation of the pitch melody music model is all generated over the time ratio: 1:1/2:1/4, including five-tone mode, size mode, middle-old mode, etc.; the harmony relation of the fundamental wave and the harmonic wave of the melody music model accords with auditory psychology, natural amplitude simulation natural playing effect is randomly generated, and music composed of a plurality of complex waveform timbres is synthesized and modulated; the frequency range is 20-20KHZ.
Wherein, for five-tone tuning, in the frequency range of 220-440HZ, 5 tones with frequencies of 262HZ, 294HZ, 330HZ, 392HZ and 440HZ are selected to generate corresponding melodies; a large phrase of 8/X minutes in length is generated in which the 8/X minute sound is resting or a delay for the last sound.
Wherein in the phrase, the 4/X minute tone and the 8/X minute tone are rest or a delay of the previous tone.
Taking the C major scale as an example, 7 tones with frequencies of 261.6HZ,293.6HZ,329.6HZ,349.2HZ, 332 HZ,440HZ and 493.8HZ are preferentially selected to generate corresponding melodies.
The device further comprises an adaptive adjustment module, which is used for: if the patient cannot reach the speed set in the music in practice or exceeds the speed of the music and the interval is within 8% of the upper and lower intervals, the speed of the music is increased or decreased by taking the pace monitored in real time as the reference speed, and the voice guidance is provided.
The digital music exercise training system based on rhythmic auditory stimulus has the following beneficial effects:
1. the music provided by the invention has emotion characteristics and aesthetic value, and compared with simple rhythm stimulation, the music with rhythm prompt creates a humane color and rewarding atmosphere. And has certain effect on improving non-motor symptoms such as anxiety, depression or cognitive function.
2. The music in the invention emphasizes the re-beat in the rhythm, and the fixed and repetitive rhythm acoustic sense signal can drive and promote rhythmic movement.
3. The invention also shows a certain music beat enrichment presentation in the stable rhythm, and compared with a single beat, the complex structure of the music can promote the synchronization of patients. By continuously adding freshness, patient compliance, attention and altered motivation are improved.
4. The invention considers that the hearing sensitivity of the elderly is reduced to high frequency, and the parkinsonism is frequent in the elderly, so the invention is designed for the hearing range of the elderly.
Drawings
Fig. 1 is a schematic diagram of a digital music exercise training system based on rhythmic auditory stimulus according to the present application.
Detailed Description
The present application is further described below with reference to the drawings and examples.
In the following description, the terms "first," "second," and "first," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The following description provides various embodiments of the invention that may be substituted or combined between different embodiments, and thus this application is also intended to encompass all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the present application should also be considered to include embodiments that include one or more of all other possible combinations of features A, B, C, D, although such an embodiment may not be explicitly recited in the following.
As shown in fig. 1, the digital music sports training system based on rhythmic auditory stimulus of the present application includes: an acquisition module 201 for acquiring motion rhythm data of a patient; the parameter adjustment module 202 is configured to collect age and preference of a patient, generate a track of a corresponding style, and adjust parameters of the track according to exercise rhythm data of the patient; the rhythmic auditory stimulus generating module 203 is configured to generate a rhythmic auditory stimulus signal after adjusting the parameters, and transmit the rhythmic auditory stimulus signal to the playing terminal. The following description will be made separately.
A motion rhythm data acquisition module: because the gait of the parkinsonism patient is unstable and the left and right foot benefiting parts are available, the number of times of touching the ground of the two feet is calculated through the step counting sensor, and one half of the number of times of touching the ground of the feet in one minute is facilitated, so that the reference pace is obtained and converted into beats/minute to be used as the speed for generating the music later.
Parameter adjustment module: the computer collects the age and preference (such as wind, rhythm, etc.) of the patient and automatically generates the corresponding style of track. The module aims to establish an adaptive control method of important elements in rhythmic auditory stimulus, and forms an elastically controllable physical model, including a pitch melody music model and an impact non-pitch music model. The pitch melody music model is a continuous energy transfer process, is a medium-speed energy input, is harmonious in fundamental frequency and overtones, is an acoustic model which is continuously and repeatedly circulated, and the impact pitch-free music model comprises short-time and rapid energy input and natural attenuation.
Track music styles include chinese wind, dance music, electronics, etc., with important elements taking into account speed, overtones, sound volume, loudness, etc. These elements will work together through parameter adjustment to the generation of music, for example, through raising speed, overlapping overtones, expanding sound volume, raising loudness to reach the rising of the whole energy tension of music, full energy filled melody can encourage parkinsonism patient, continuous at uniform speed accomplish gait training.
And generating audio by the impact pitch-free music model and the pitch melody music model together, wherein the audio duration is 15 minutes.
The impact pitch-free music model is output by mapping the measured pace of the patient into a rhythm unit, and is a model for generating a main vocal part expressing the rhythm. The rhythmic portion specifically includes a re-beat and a non-re-beat, and if the pace speed is X steps/min, the tempo of the music is X beats/min. The re-clapping is a bright, remarkable fixed tone color, and occurs every 1/X minute from the first clapping, namely, the nth/X minute (n is a continuous positive integer, and is 1.ltoreq.n.ltoreq.15X). Non-re-shooting is low-saturation tone, one of the tone is randomly called, the total energy amplitude is not more than re-shooting, and the non-re-shooting occurs randomly every 1/2X min, namely, the n/2X min (n is a continuous positive integer, and n is more than or equal to 1 and less than or equal to 30X).
For example, taking the previous minute as an example, when the pace speed is 80 steps/minute, 1/80,2/80, 3/80/… … 80/80 minutes are fixed occurrences of re-beats, and 1/160,2/160,3/160/… …,160/160 minutes are random occurrences of non-re-beats.
The pitch generation of the pitch melody music model is all generated over the time ratio: 1:1/2:1/4, including five-tone mode, size mode, middle-old mode, etc. Taking five-tone mode as an example, in the 220-440HZ frequency range, 5 tones with frequencies of 262HZ, 294HZ, 330HZ, 392HZ,440HZ are preferentially selected to generate corresponding melodies. Generating a phrase of 8/X minutes duration in which the 8/X minute tone is dormant or a delay of the last tone; yet another way is that the 4/X minute tone and the 8/X minute tone are rest or the previous tone is left over, and both jerky and jump-in are taken into account.
Taking the C major (A-la-440 HZ) as an example, 7 tones with frequencies of 261.6HZ,293.6HZ,329.6HZ,349.2HZ, 332 HZ,440HZ and 493.8HZ are preferentially selected to generate corresponding melodies. The phrase generation method is the same as the five-tone method, and will not be described here.
The harmony relation of the fundamental wave and the harmonic wave of the melody music model accords with auditory psychology, and the natural amplitude simulation natural playing effect is randomly generated to synthesize and modulate music composed of a plurality of complex waveform timbres. The frequency range is 20-20KHZ, and the frequency is mainly concentrated in the middle and low frequency parts.
The computer generates a basic sound sample of the corresponding speed according to the patient speed measured by the acquisition module.
Rhythmic auditory stimulus generation module: after the parameter adjusting module adjusts the related parameters, the computer generates a rhythmic auditory stimulus signal for 15 minutes and transmits the rhythmic auditory stimulus signal to the playing terminal.
Gait training is described as follows:
and (3) step speed real-time monitoring: the patient performs gait training according to the generated music stimulus, and the pace is measured by the step-counting sensor while training.
Self-adaptive adjustment of music rhythm: if the speed set in the music cannot be reached or exceeds the speed of the music in practice, and the interval is within 8% of the upper and lower range, the self-adaptive adjustment of the rhythm unit can be triggered, the speed of the music is increased or decreased by taking the pace monitored in real time as the reference speed, and the voice guidance is provided.
Dynamic excitation and dimensional stability filtering: and (3) dynamic excitation filtering, wherein if the actual pace of a patient is monitored to be 8% lower than the original pace, the dynamic excitation filtering is triggered, overtones which are continuously increased in pitch melody music are continuously enriched, music sequences are continuously enriched, parts with lower frequency in a frequency spectrum are supplemented, and meanwhile, the impact pitch-free music loudness is improved. And on the contrary, if the actual pace of the patient is detected to be higher than the original pace by more than 8%, triggering the dynamic steady-state filter, continuously decreasing overtones in the pitch melodized music, reducing the input amplitude in the impact non-pitch music, and simultaneously improving the loudness of the impact non-pitch music.
The application has the main advantages that:
1. the music provided by the invention has emotion characteristics and aesthetic value, and compared with simple rhythm stimulation, the music with rhythm prompt creates a humane color and rewarding atmosphere. And has certain effect on improving non-motor symptoms such as anxiety, depression or cognitive function.
2. The music in the invention emphasizes the re-beat in the rhythm, and the fixed and repetitive rhythm acoustic sense signal can drive and promote rhythmic movement.
3. The invention also shows a certain music beat enrichment presentation in the stable rhythm, and compared with a single beat, the complex structure of the music can promote the synchronization of patients. By continuously adding freshness, patient compliance, attention and altered motivation are improved.
4. The invention considers that the hearing sensitivity of the elderly is reduced to high frequency, and the parkinsonism is frequent in the elderly, so the invention is designed for the hearing range of the elderly.
The purposes of the present application include: (1) A rhythmic auditory stimulus frequency generation technique is provided that conforms to the actual stride frequency of a patient. (2) Personalized music preferences are combined with rhythmic auditory stimuli. (3) Provides a rhythmic auditory stimulus creation method which has stronger musical performance and has the function of resisting anxiety and depression.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A digital musical athletic training system based on rhythmic auditory stimuli, comprising: the acquisition module is used for acquiring the motion rhythm data of the patient; the parameter adjustment module is used for collecting the age and preference of the patient, generating a track of a corresponding style, and adjusting parameters of the track according to the movement rhythm data of the patient; and the rhythmic auditory stimulus generating module is used for generating rhythmic auditory stimulus signals after the parameters are adjusted and transmitting the rhythmic auditory stimulus signals to the playing terminal.
2. The digital musical athletic training system based on rhythmic auditory stimuli of claim 1, wherein the acquisition module includes a step counting sensor for counting one-half of the number of times the patient's favorable feet bottom out in one minute, deriving a reference pace, and converting to beats/minute as the rate of subsequent generation of music.
3. A digital musical sports training system based on rhythmic auditory stimuli according to claim 1 or 2, characterized in that the parameter adjustment module comprises a computer for establishing an adaptive control method of the elements in rhythmic auditory stimuli, forming an elastically controllable physical model comprising a pitch melodized music model and an impact pitch-free music model.
4. Digital musical sports training system based on rhythmic auditory stimuli according to claim 1 or 2, characterized in that the parameters adjusted comprise speed, overtone, volume of sound, loudness.
5. A digital musical exercise training system based on rhythmic auditory stimuli in accordance with claim 3, characterized in that said percussive pitch-free music model is output by mapping measured patient pace into a rhythm unit, which is a model generating a representation of the main rhythmic part, specifically including re-beats and non-re-beats, if pace is X steps/min, the speed of the music is X beats/min; the re-shooting occurs once every 1/X minute from the first shooting, namely, occurs in the nth/X minute, wherein n is a continuous positive integer which is more than or equal to 1 and less than or equal to 15X; the non-re-beat occurs randomly every 1/2X min, namely, the n/2X min occurs, n is a continuous positive integer, n is more than or equal to 1 and less than or equal to 30X, and the total energy amplitude of the non-re-beat does not exceed the re-beat.
6. A digital musical sports training system based on rhythmic auditory stimuli according to claim 3, characterized in that the pitch generation of the pitch melodized music model is all generated over the time ratio: 1:1/2:1/4, including five-tone mode, size mode and mid-ancient mode; the harmony relation of the fundamental wave and the harmonic wave of the melody music model accords with auditory psychology, natural amplitude simulation natural playing effect is randomly generated, and music composed of a plurality of complex waveform timbres is synthesized and modulated; the frequency range is 20-20KHZ.
7. The digital musical athletic training system based on rhythmic auditory stimuli of claim 6, wherein for a five-tone tuning, 5 tones of frequencies 262HZ, 294HZ, 330HZ, 392HZ,440HZ are selected to produce corresponding melodies in the 220-440HZ frequency range; a large phrase of 8/X minutes in length is generated in which the 8/X minute sound is resting or a delay for the last sound.
8. The digital musical sports training system based on rhythmic auditory stimuli of claim 7, characterized in that in said phrase, the 4/X minute tone and the 8/X minute tone are rest or a dwell of the previous tone.
9. The digital musical athletic training system based on rhythmic auditory stimuli of claim 6, wherein, taking the C major scale as an example, 7 sounds with frequencies 261.6hz,293.6hz,329.6hz,349.2hz, 332 hz,440hz,493.8hz are selected to produce corresponding melodies.
10. The digital musical sports training system based on rhythmic auditory stimulation according to claim 1 or 2, characterized in that it further comprises an adaptive adjustment module for: if the patient cannot reach the speed set in the music in practice or exceeds the speed of the music and the interval is within 8% of the upper and lower intervals, the speed of the music is increased or decreased by taking the pace monitored in real time as the reference speed, and the voice guidance is provided.
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