Multi-functional integrated jukebox

Abstract

The application discloses a multifunctional integrated song ordering machine, which comprises a collecting module, an N microphone wireless communication connection, which is used for acquiring N singing sound information output by N microphones respectively, N>=2; a division module connected with the collecting module, which is used for acquiring accompaniment audio and original singing audio of a current song ordering and dividing the song ordering into multiple singing intervals according to the accompaniment audio and the original singing audio; a control module connected with the division module and a playing device, which is used for dividing the N singing sound information into first singing information and at least one second singing information in the singing interval, and is used for adjusting the accompaniment audio and the original singing audio according to the first singing information and each second singing information and outputting to the playing device; wherein, the singing effect of the first singing information is better than that of the second singing information. The technical scheme of the application can make the playing device play the accompaniment audio and the original singing audio which are more suitable for the overall chorus effect of the current singing interval.

Description

Technical Field

[0001] This invention relates to the field of multifunctional integrated karaoke machine technology, and particularly to a multifunctional integrated karaoke machine. Background Technology

[0002] Karaoke machines are divided into commercial and home types. Commercial karaoke machines are typically found in entertainment venues such as KTV rooms or mini KTVs. These machines usually need to have multiple functions, including song selection, backing vocal selection, original vocal selection, intelligent backing vocals, and integration with other venue equipment. In traditional karaoke machine technology, the intelligent backing vocals function is typically designed to adjust the backing vocals and original vocals based on the user's actual singing performance to ensure a consistently excellent singing experience.

[0003] However, the intelligent accompaniment function currently only supports single-user singing and cannot be enabled in multi-person singing scenarios, which cannot meet the needs of commercial karaoke machines. Summary of the Invention

[0004] The main objective of this invention is to provide a multi-functional integrated karaoke machine, which aims to solve the deficiency that the intelligent accompaniment function does not support multi-person chorus scenarios.

[0005] To achieve the above objectives, the present invention proposes a multi-functional integrated karaoke machine for connecting to N microphones and playback devices. The multi-functional integrated karaoke machine includes:

[0006] The acquisition module is wirelessly connected to N microphones to acquire N channels of singing sound information output by the N microphones, where N ≥ 2;

[0007] A segmentation module is used to obtain the instrumental and original vocal audio of the currently played song, and to divide the song into multiple vocal sections based on the instrumental and original vocal audio; and,

[0008] A control module is connected to the acquisition module, the division module, and the playback device. The control module is used to divide the N channels of singing sound information into first singing information and at least one second singing information in the singing interval, and to adjust the accompaniment audio and the original vocal audio according to the first singing information and the second singing information and output them to the playback device.

[0009] The performance quality of the first performance information is better than that of the second performance information.

[0010] Optionally, each of the singing intervals includes a sequentially performed acquisition interval and an adjustment interval;

[0011] For each singing interval, the control module is used to evaluate the score of each singing sound information based on multiple evaluation dimensions, and determine the first singing information and the second singing information based on the score evaluation result of each singing sound information.

[0012] The control module is also used to adjust the accompaniment audio and the original vocal audio according to the first singing information and the second singing information within the adjustment range and output them to the playback device;

[0013] The duration of the acquisition interval shall not exceed 20% of the duration of the performance interval.

[0014] Optionally, the control module is further configured to adjust the accompaniment audio and the original vocal audio according to the first singing information and each of the second singing information in the previous singing interval in the Mth acquisition interval, and output them to the playback device;

[0015] Where M≥2.

[0016] Optionally, the evaluation dimensions may include singing rhythm, singing emotion, and singing pitch.

[0017] The control module is used to perform a weighted calculation of the evaluation scores for the singing rhythm, singing emotion, and singing pitch to obtain the score evaluation result of the singing voice information.

[0018] Optionally, the control module is used to determine the singing voice information with the highest evaluation score among the N singing voice information as the first singing information in the singing interval, and to determine the remaining singing voice information as the second singing information.

[0019] Optionally, the control module is further configured to, when the score evaluation results of multiple singing voice information are all the highest and the same, take the singing voice information with the highest sum of evaluation scores in the preset evaluation dimension as the first singing information, and determine the remaining singing voice information as the second singing information.

[0020] The preset evaluation dimensions are the singing rhythm and the singing pitch.

[0021] Optionally, the control module is used to adjust the output weight of the original audio based on the rhythm score and pitch score of the first singing information;

[0022] The control module is used to adjust the output weight of the accompaniment audio based on the singing emotion scores of the first singing information and the second singing information.

[0023] Optionally, the control module is used to turn off or reduce the output multiplier of the original audio when the sum of the singing beat score and the singing pitch score of the first singing information is within a first preset score range;

[0024] If the sum of the beat score and pitch score of the first singing information is within the second preset score range, the output multiplier of the original audio will be adjusted to the initial original output multiplier or increased to the first target multiplier.

[0025] If the sum of the beat score and pitch score of the first singing information is within the third preset score range, the output multiplier of the original audio will be increased to the second target multiplier.

[0026] Wherein, the first target multiplier is greater than the initial original output multiplier and less than the second target multiplier; the scores corresponding to the first preset score interval, the second preset score interval, and the third preset score interval decrease sequentially.

[0027] Optionally, the control module is used to calculate the average of the singing emotion scores of the first singing information and the second singing information;

[0028] If the average value calculation result is within the fourth preset score range, the output multiplier of the backing audio will be increased to the third target multiplier;

[0029] If the average value calculation result is within the fifth preset score range, the output multiplier of the backing audio will be increased to the fourth target multiplier;

[0030] If the average value calculation result is within the sixth preset score range, the output multiplier of the backing vocals will be adjusted to the initial backing vocals output multiplier.

[0031] Among them, the fourth target multiplier is greater than the initial accompaniment output multiplier and less than the third target multiplier; the scores corresponding to the fourth preset score interval, the fifth preset score interval, and the sixth preset score interval decrease sequentially.

[0032] Optionally, the multi-functional integrated karaoke machine further includes:

[0033] A filtering module is connected to N microphones and the control module respectively; for the singing sound information output by any one microphone, the filtering module is used to filter the accompaniment audio, the original vocal audio and the singing sound information output by the other N-1 microphones before outputting it to the control module;

[0034] The filtering process is used to filter out the audio components corresponding to the accompaniment audio, the original vocal audio, and the vocal sound information output by the other N-1 microphones.

[0035] The technical solution of this invention divides the singing area into multiple singing areas and determines the most suitable first singing information and second singing information in real time within each singing area. Based on the first singing information and second singing information, the accompaniment audio and original vocal audio in the singing area are adjusted. This allows the playback device to play accompaniment audio and original vocal audio that better match the overall chorus effect of the current performance area. This enables intelligent accompaniment singing function in multi-person chorus scenarios, thereby solving the defect that intelligent accompaniment singing function does not support multi-person chorus scenarios. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of a module of an embodiment of the multifunctional integrated karaoke machine of the present invention;

[0038] Figure 2 This is a schematic diagram of another embodiment of the multifunctional integrated karaoke machine of the present invention.

[0039] Explanation of icon numbers:

[0040] label name label name 10 Data Acquisition Module 30 Control module 20 Divide into modules 40 Filtering module

[0041] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0044] In multi-person singing scenarios, multiple microphones simultaneously input signals, and the singing abilities of the singers generally vary greatly. According to the current adjustment logic of intelligent backing vocal functions, conflicting adjustment results can easily occur based on different microphone outputs. For example, based on the microphone signal input of a user with poor singing quality, the original vocal audio should be increased, while based on the microphone signal input of a user with good singing quality, the adjustment result should be decreased. To avoid these conflicting results, current intelligent backing vocal functions only allow activation in solo singing scenarios.

[0045] To address the aforementioned issues, this invention proposes a multi-functional integrated karaoke machine, aiming to achieve an intelligent accompaniment function applicable to multi-person chorus scenarios.

[0046] Reference Figure 1 The multi-functional all-in-one karaoke machine includes:

[0047] The acquisition module is wirelessly connected to N microphones to acquire N channels of singing sound information output by the N microphones, where N ≥ 2;

[0048] The segmentation module is used to obtain the instrumental and vocal audio of the currently played song, and divide the song into multiple vocal sections based on the instrumental and vocal audio; and,

[0049] The control module is connected to the acquisition module, the division module and the playback device. The control module is used to divide the N channels of singing sound information into first singing information and at least one second singing information in the singing range, and to adjust the accompaniment audio and the original vocal audio according to the first singing information and each second singing information and output them to the playback device.

[0050] The performance of the first singing information was better than that of the second singing information.

[0051] In this embodiment, the multi-functional integrated karaoke machine is used to connect to N microphones and playback devices. N is determined by the number of users currently singing together, and in this scheme, N is at least 2. The acquisition module can wirelessly connect to the N microphones via Bluetooth, Wi-Fi, or other wireless communication methods to capture the singing sound information output by the microphones after different users sing. The accompaniment audio will continue throughout the entire song performance, while the original vocal audio will only appear when needed and will not be maintained throughout the entire performance.

[0052] The segmentation module is configured to first distinguish each complete lyric based on the lyric information, then, combined with the original audio, determine the time period during which each complete lyric appears in the performance, and finally, define each determined time period as a performance interval. It is understandable that each performance interval contains a portion of the original audio.

[0053] The control module, upon entering each singing interval, determines the best-performing vocal track from N vocal audio streams as the first singing information, and designates the other, less effective tracks as the second singing information. Within each singing interval, it adjusts the output accompaniment and original vocal audio based on the determined first and second singing information, and then outputs the adjusted accompaniment and original vocal audio to the playback device. This ensures the playback device can play accompaniment and original vocal audio that better matches the overall chorus effect of the current performance interval. It can be understood that the sum of the number of first and second singing information streams is N.

[0054] Thus, since each chorus member has their own strengths and preferred parts to sing, and these parts are often different for each chorus member, the technical solution of this invention divides the singing into multiple singing intervals and determines the most suitable first and second singing information in real time within each singing interval. Based on the first and second singing information, the accompaniment audio and original vocal audio in this singing interval are adjusted, enabling the playback device to play accompaniment audio and original vocal audio that better match the overall chorus effect of the current performance interval. This achieves intelligent accompaniment function in multi-person chorus scenarios, thereby solving the defect that intelligent accompaniment function does not support multi-person chorus scenarios.

[0055] Reference Figure 1 Each singing segment includes a sequentially performed acquisition segment and an adjustment segment;

[0056] For each singing range, the control module is used to evaluate the score of each singing sound information based on multiple evaluation dimensions, and determine the first singing information and the second singing information based on the score evaluation results of each singing sound information.

[0057] The control module is also used to adjust the accompaniment audio and the original vocal audio according to the first singing information and the second singing information within the adjustment range, and then output them to the playback device.

[0058] In this implementation, the singing interval includes sequentially performed acquisition intervals and adjustment intervals, with the acquisition interval being shorter than the adjustment interval. The evaluation dimensions are those related to the singing effect. Within each acquisition interval of the singing interval, the control module can score each channel of singing sound information based on multiple evaluation dimensions. Then, based on the final score evaluation results across multiple dimensions, it determines the singing sound information with the best performance as the first singing information, and uses the other singing sound information as the second singing information.

[0059] In one optional embodiment, the duration of the acquisition interval accounts for no more than 20% of the duration of the performance interval.

[0060] This setting ensures that the duration of the acquisition interval is not too long, while also ensuring that the adjustment interval occupies a sufficient proportion of the entire singing interval, which is beneficial to ensuring the user's choral singing experience.

[0061] During testing, it was found that because multiple singing sections can easily appear consecutively, and the backing vocals and original vocals are also playing in the acquisition section, if the initial output multiplier of the backing vocals and original vocals is used for output in the acquisition section, it can easily lead to poor continuity between the backing vocals and original vocals in two consecutive singing sections, which greatly affects the overall chorus effect for the user.

[0062] To address this issue, the control module is also used to adjust the accompaniment audio and the original vocal audio based on the first and second vocal information from the previous vocal interval in the Mth acquisition interval, and then output them to the playback device.

[0063] Where M≥2.

[0064] In actual testing, it was found that when consecutive singing intervals occurred, although the singing effect of each user fluctuated in different singing intervals, the overall ranking of the singing effect did not change significantly. That is, the first singing information, the second singing information, and the singing sound information were likely the same. Based on this, the technical solution of this invention allows the control module to inherit the first and second singing information from the previous singing interval in the new acquisition interval, and adjust the accompaniment audio and the original vocal audio based on this in the new acquisition interval. This can ensure the continuity of the accompaniment audio and the original vocal audio in the two singing intervals as much as possible, which helps to reduce the impact on the overall singing effect of the users.

[0065] Optionally, multiple evaluation dimensions include singing rhythm, singing emotion, and singing pitch.

[0066] In this embodiment, the control module can acquire the original audio information of the original singer within the current acquisition interval, and the sheet music information of the currently sung song within the current acquisition interval. The evaluation score for the singing beat dimension (i.e., the singing beat score) can be determined by extracting the offset of the singing voice information relative to the original audio information of the interval; the evaluation score for the singing pitch dimension (i.e., the singing pitch score) can be determined by comparing the frequency values ​​of the singing voice information and the original audio information of the interval; the evaluation score for the singing emotion dimension (i.e., the singing emotion score) can be determined by comparing the intensity of the singing voice information and the sheet music information of the interval.

[0067] It should be noted that the purpose of scoring each vocal recording in this invention is not to critique the user's performance, but rather to select the closest possible vocal information to the original recording. Furthermore, in multi-person choral settings, many evaluation criteria, such as volume, range, timbre, and lyric accuracy, are often used to critique solo performances. Therefore, this invention employs three evaluation dimensions—rhythm, emotion, and pitch—to ensure that the final score matches the actual performance level while minimizing the impact of the choral setting.

[0068] The control module is used to calculate the final score of the singing voice information by weighting the scores of the three evaluation dimensions: rhythm, emotion, and pitch. Specifically, the weighting calculation involves summing the products of the rhythm score and a first preset weighting value, the pitch score and a second preset weighting value, and the emotion score and a third preset weighting value. The sum is then used as the final score of the singing voice information. The first, second, and third preset weighting values ​​can be determined through extensive prior experiments; this embodiment does not impose any limitations on them.

[0069] Optionally, the control module is used to determine the singing audio information with the highest score evaluation result among the N singing audio information as the first singing information in the singing interval, and to determine the remaining singing audio information as the second singing information.

[0070] With this setting, if only one vocal recording has the highest final score, the vocal recording with the best performance will be used as the first vocal recording.

[0071] Optionally, the control module is used to determine the singing voice information with the highest sum of evaluation scores across preset evaluation dimensions as the first singing information when the evaluation results of multiple singing voice information are all the highest and the same, and to determine the remaining singing voice information as the second singing information; the preset evaluation dimensions are singing rhythm and singing pitch.

[0072] In this embodiment, if the control module calculates that the final score evaluation results of at least two channels of singing audio information are both the highest, it will return to calculate the highest sum of the scores for rhythm and pitch of these channels of singing audio information, and take the singing audio information with the highest sum of rhythm and pitch scores as the first singing information. In other words, when the final score evaluation results of at least two channels of singing audio information are both the highest, the pitch score is removed, and the first singing information is determined by the two evaluation dimensions of rhythm and pitch, which best reflect the singer's actual singing level.

[0073] It's important to note that actual testing revealed significant differences in the roles of original vocals and backing vocals in choral and solo settings. The biggest difference lies in solo performances. Since only one singer is performing, a weaker singer often requires strong original and backing vocals to achieve a better effect. However, choral settings are different. Due to the large number of singers, a dominant vocalist is easily identified. Regardless of the difference between this dominant vocalist and the original, less skilled singers tend to follow the dominant vocalist's voice more closely. Furthermore, in choral settings, backing vocals don't solely serve the best-performing singer but also contribute to the overall choral effect.

[0074] Based on the above, the technical solution of the present invention configures the control module to adjust the output weight of the original audio according to the singing beat score and singing pitch score of the first singing information;

[0075] The control module adjusts the output weight of the backing vocals based on the emotional scores of the first and second vocal information. This setting ensures that the output ratio of the original vocals and backing vocals matches the overall chorus effect in real time.

[0076] Furthermore, the control module is used to turn off or reduce the output multiplier of the original audio when the sum of the singing beat score and the singing pitch score of the first singing information is within a first preset score range;

[0077] If the sum of the beat score and pitch score of the first singing information is within the second preset score range, adjust the output multiplier of the original audio to the initial original output multiplier or increase it to the first target multiplier.

[0078] If the sum of the beat score and pitch score of the first singing information is within the third preset score range, the output multiplier of the original audio will be increased to the second target multiplier.

[0079] Among them, the first target multiplier is greater than the initial original output multiplier and less than the second target multiplier; the scores corresponding to the first preset score interval, the second preset score interval, and the third preset score interval decrease sequentially.

[0080] In this embodiment, the first preset score interval, the second preset score interval, and the third preset score interval can be three consecutively decreasing score intervals. The control module is used to calculate the sum of the singing rhythm score and the singing pitch score of the first singing information, and determine which preset score interval the sum calculation result falls into.

[0081] If the sum calculation result falls within the first preset score range, it indicates that the singer in the first performance is of extremely high skill, and the performance is close to the original. In this case, the output multiplier of the original audio can be turned off or reduced to decrease the participation of the original audio and increase the participation of each singer. Since there is a singer with a high skill level in the first performance, it will not affect the overall chorus effect. If the sum calculation result falls within the second preset score range, it indicates that the singer in the first performance is of high skill and the performance is good. In this case, the output multiplier of the original audio can be adjusted to the initial multiplier or increased to a lower first target multiplier to slightly increase the participation of the original audio and improve the participation of each singer and the overall chorus effect. If the sum calculation result falls within the third preset score range, it indicates that the singer in the first performance is of average or poor skill, and the performance is far from the original. In this case, the output multiplier of the original audio can be increased to a higher second target multiplier to increase the participation of the original audio and improve the participation of each singer.

[0082] In this embodiment, the first target magnification and the second target magnification can be a preset magnification value, or they can be real-time magnification values ​​calculated based on relevant parameters (e.g., the singing beat score and singing pitch score of the first singing information). This embodiment does not limit the specific magnification values.

[0083] Furthermore, the control module is used to calculate the average of the emotional scores of the first and second singing information;

[0084] If the average calculation result is within the fourth preset score range, increase the output multiple of the backing audio to the third target multiple.

[0085] If the average calculation result is within the fifth preset score range, increase the output multiple of the backing audio to the fourth target multiple.

[0086] If the average calculation result is within the sixth preset score range, adjust the output multiplier of the backing vocals to the initial backing vocals output multiplier;

[0087] Among them, the fourth target multiplier is greater than the initial accompaniment output multiplier and less than the third target multiplier; the scores corresponding to the fourth preset score interval, the fifth preset score interval, and the sixth preset score interval decrease sequentially.

[0088] The control module can add the singing emotion scores of the first singing information and each of the second singing information, and then divide by N to obtain the average value. It should be noted that actual testing shows that the singing emotion score is directly proportional to the singer's willingness to sing; that is, the higher the average value, the higher the singer's willingness to sing actively. Based on this, in this embodiment, the fourth, fifth, and sixth preset score intervals can also be three continuously decreasing score intervals. After calculating the average value of the singing emotion scores, the control module can determine which preset score interval the average value falls into.

[0089] If the average score falls within the fourth preset score range, it indicates that the singers are highly motivated to perform and require higher-quality backing vocals to create a suitable atmosphere and enhance the overall chorus effect. In this case, the control module can increase the output rate of the backing vocals to a higher third target rate to meet the chorus's needs. If the average score falls within the fifth preset score range, it indicates that the singers are highly motivated to perform and the backing vocals can be slightly increased to achieve a better chorus effect. In this case, the control module can increase the output rate of the backing vocals to a slightly higher fourth target rate to meet the chorus's needs. If the average score falls within the sixth preset score range, it indicates that the singers are only moderately motivated or have a low level of motivation and there is no need to increase the backing vocals to achieve a better chorus effect. In this case, the control module can simply adjust the output rate of the backing vocals back to the initial output rate.

[0090] In this embodiment, the third target magnification and the fourth target magnification can be a preset magnification value, or they can be real-time magnification values ​​calculated based on relevant parameters (e.g., the singing beat score and singing pitch score of the first singing information). This embodiment does not limit the magnification value in this respect.

[0091] In an optional embodiment, the control module can substitute the higher of the beat score and pitch score of the first singing information, along with the beat score and pitch score of each of the second singing information, into the corresponding preset amplification calculation formula to obtain a first multiplier. The third target multiplier is obtained by multiplying the first multiplier by the initial accompaniment output multiplier. Alternatively, the control module can substitute the lower of the beat score and pitch score of the first singing information, along with the beat score and pitch score of each of the second singing information, into the corresponding preset amplification calculation formula to obtain a second multiplier. The fourth target multiplier is obtained by multiplying the second multiplier by the initial accompaniment output multiplier.

[0092] Because commercial karaoke machines are typically located in small spaces, and the echo is quite severe when multiple people are singing together, the microphones can easily pick up the voices of other singers and other sounds, resulting in a large error in the score evaluation of each singer's voice information.

[0093] In response to the above problems, refer to Figure 2 The multi-functional all-in-one karaoke machine also includes:

[0094] The filtering module is connected to N microphones and the control module respectively. For the singing sound information output by any microphone, the filtering module is used to filter the accompaniment audio, the original audio, and the singing sound information output by the other N-1 microphones before outputting it to the control module.

[0095] The filtering process is used to filter out the audio components corresponding to the accompaniment audio, the original vocal audio, and the vocal sound information output from the other N-1 microphones.

[0096] In this way, the vocal audio information received by the control module can be deprived of the audio components corresponding to the accompaniment audio, the original vocal audio, and the vocal audio information output from the other N-1 microphones, thereby improving the accuracy of the control module's evaluation of each vocal audio information.

[0097] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multifunctional integrated jukebox, characterized by comprising: A multifunctional integrated jukebox for connecting with N microphones and a playing device, comprising: a collection module, wirelessly connected with the N microphones, for acquiring N-channel singing voice information respectively output by the N microphones, N≥2; a division module, for acquiring accompaniment audio and original singing audio of a current jukebox song, and dividing the jukebox song into multiple singing intervals according to the accompaniment audio and the original singing audio; and a control module, connected with the collection module, the division module and the playing device, for dividing the N-channel singing voice information into first singing information and at least one second singing information in the singing intervals, and for adjusting the accompaniment audio and the original singing audio according to the first singing information and the second singing information and outputting to the playing device; wherein the singing effect of the first singing information is better than that of the second singing information; each of the singing intervals comprises a collection interval and an adjustment interval in sequence; for each of the singing intervals, the control module is configured to score evaluate each of the N-channel singing voice information based on multiple evaluation dimensions, and determine the first singing information and the second singing information according to the score evaluation results of each of the N-channel singing voice information; the control module is further configured to adjust the accompaniment audio and the original singing audio according to the first singing information and the second singing information in the adjustment interval and output to the playing device; wherein the time length of the collection interval accounts for no more than 20% of the time length of the singing interval.

2. The multi-functional integrated jukebox of claim 1, wherein the control module is further configured to adjust the accompaniment audio and the original singing audio according to the first singing information and the second singing information in the previous singing interval and output to the playing device in the Mth collection interval; wherein M≥2.

3. The multi-functional integrated jukebox of claim 1, wherein the multiple evaluation dimensions are singing rhythm, singing emotion and singing pitch; the control module is configured to perform weighted calculation on the evaluation scores of the singing rhythm, the singing emotion and the singing pitch to obtain the score evaluation result of the singing voice information.

4. The multi-functional integrated jukebox of claim 3, wherein the control module is configured to determine the N-channel singing voice information with the highest evaluation score result as the first singing information in the singing interval, and determine the remaining singing voice information as the second singing information.

5. The multi-functional integrated jukebox of claim 4, wherein the control module is further configured to, in the case that the score evaluation results of multiple-channel singing voice information are all the highest and the same, determine the singing voice information with the highest sum of evaluation scores of preset evaluation dimensions as the first singing information, and determine the remaining singing voice information as the second singing information; wherein the preset evaluation dimensions are the singing rhythm and the singing pitch.

6. The multi-functional integrated jukebox of claim 3, wherein the control module is configured to adjust the output proportion of the original singing audio according to the singing rhythm score and the singing pitch score of the first singing information; the control module is configured to adjust the output proportion of the accompaniment audio according to the singing emotion scores of the first singing information and the second singing information.

7. The multi-functional integrated jukebox of claim 6, wherein the plurality of songs are stored in the memory of the jukebox. The control module is configured to close or reduce the output rate of the original singing audio when the sum of the singing rhythm score and the singing pitch score of the first singing information is in a first preset score interval; The output rate of the original singing audio is adjusted to the initial original singing output rate or increased to a first target rate when the sum of the singing rhythm score and the singing pitch score of the first singing information is in a second preset score interval; The output rate of the original singing audio is increased to a second target rate when the sum of the singing rhythm score and the singing pitch score of the first singing information is in a third preset score interval; The first target rate is greater than the initial original singing output rate and less than the second target rate; the scores corresponding to the first preset score interval, the second preset score interval and the third preset score interval decrease in turn.

8. The multi-functional integrated jukebox of claim 6, wherein, The control module is configured to perform average value calculation on the singing emotion scores of the first singing information and the second singing information; The output rate of the accompaniment audio is increased to a third target rate when the average value calculation result is in a fourth preset score interval; The output rate of the accompaniment audio is increased to a fourth target rate when the average value calculation result is in a fifth preset score interval; The output rate of the accompaniment audio is adjusted to the initial accompaniment output rate when the average value calculation result is in a sixth preset score interval; The fourth target rate is greater than the initial accompaniment output rate and less than the third target rate; the scores corresponding to the fourth preset score interval, the fifth preset score interval and the sixth preset score interval decrease in turn.

9. The multi-functional integrated jukebox of any of claims 1-8, wherein: The multifunctional integrated song ordering machine further comprises: A filtering module connected with the N microphones and the control module; for the singing sound information output by any one microphone, the filtering module is configured to perform filtering processing on the accompaniment audio, the original singing audio and the singing sound information output by other N-1 microphones, and then output to the control module; The filtering processing is configured to filter out the audio components corresponding to the accompaniment audio, the original singing audio and the singing sound information output by other N-1 microphones.

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