CN110808985B

CN110808985B - Song on-demand method, device, terminal, server and storage medium

Info

Publication number: CN110808985B
Application number: CN201911077410.5A
Authority: CN
Inventors: 陈薇
Original assignee: Beijing Dajia Internet Information Technology Co Ltd
Current assignee: Beijing Dajia Internet Information Technology Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2022-04-01
Anticipated expiration: 2039-11-06
Also published as: CN110808985A

Abstract

The disclosure relates to a song on-demand method, a song on-demand device, a song on-demand terminal, a song on-demand server and a song storage medium, and belongs to the field of communication. In the technical scheme provided by the disclosure, the first terminal displays the song publishing page of the second user, and after the first terminal detects the trigger operation of the first user on the song selecting keyword, acquiring song information of a plurality of candidate on-demand songs of a second user from a server, displaying an on-demand page of the second user by a first terminal based on the song information of the candidate on-demand songs, and if the first terminal detects the on-demand operation of the first user on the on-demand page, and sending a request for requesting songs to a server, wherein the first user can request songs for the second user according to the song publishing page published by the second user, and the whole scheme provides a song requesting function published by the first user and the second user through the author side, so that the reader side can perform a song requesting interactive mode based on the song requesting function, and the interactive experience feeling between the first user and the second user is improved.

Description

Song on-demand method, device, terminal, server and storage medium

Technical Field

The present disclosure relates to the field of communications, and in particular, to a song on-demand method, apparatus, terminal, server, and storage medium.

Background

With the continuous development of network technologies, more and more entertainment applications provide a song singing function, and a user can sing and/or listen to a song in the entertainment applications.

In the related art, an entertainment application software is installed in a terminal device, a user a logs in the software, randomly selects a song or manually searches for a song from a song list of a top page, sings the song, records the singing song, issues the recorded song in the entertainment application, and can listen to the song issued by the user a after a user B logs in the entertainment application.

In the song on-demand process, the user B can only listen to the song released by the user a, but cannot perform other forms of interaction, so that the interactive experience between the user B and the user a is poor.

Disclosure of Invention

The disclosure provides a song on-demand method, a song on-demand device, a song on-demand terminal, a song on-demand server and a song on-demand storage medium, which are used for at least solving the problem of poor interactive experience among users in the related technology. The technical scheme of the disclosure is as follows:

according to a first aspect of the embodiments of the present disclosure, there is provided a song on-demand method applied to a first terminal, where the first terminal logs in a first user, including:

displaying a song publishing page of a second user, wherein the song publishing page comprises song requesting keywords of the second user, and the song requesting keywords are used for jumping to a song requesting page of the second user;

if the triggering operation of the first user on the song-requesting keyword is detected, acquiring song information of a plurality of candidate song-on-demand of the second user from a server;

displaying the on-demand page of the second user based on the song information of the candidate on-demand songs;

and if the on-demand operation of the first user on the on-demand page is detected, sending an on-demand request to the server, wherein the on-demand request carries song information corresponding to the on-demand operation.

In the embodiment provided by the disclosure, the first terminal displays the song publishing page of the second user, and after the first terminal detects the trigger operation of the first user on the song selecting keyword, acquiring song information of a plurality of candidate on-demand songs of a second user from a server, displaying an on-demand page of the second user by a first terminal based on the song information of the candidate on-demand songs, and if the first terminal detects the on-demand operation of the first user on the on-demand page, and sending a request for requesting songs to a server, wherein the first user can request songs for the second user according to the song publishing page published by the second user, and the whole scheme provides a song requesting function published by the first user and the second user through the author side, so that the reader side can perform a song requesting interactive mode based on the song requesting function, and the interactive experience feeling between the first user and the second user is improved.

In one possible implementation, the obtaining song information of the plurality of candidate on-demand songs of the second user from the server includes:

and sending the user identification of the first user to the server, and acquiring song information of the historical playing songs corresponding to the user identification from the server.

song information for songs that match the type of song that the second user has performed is obtained from the server.

song information of a song that is the same as the singer information of the song that the second user has performed is acquired from the server.

In one possible implementation, after sending the on-demand request to the server, the method further includes:

and receiving an on-demand completion message sent by the server, wherein the on-demand completion message carries address information of the song recorded by the second user in response to the on-demand request.

According to a second aspect of the embodiments of the present disclosure, there is provided a song on-demand method applied to a server, including:

sending a song release page of a second user to a first terminal, wherein the first terminal logs in a first user, the song release page comprises song-requesting keywords of the second user, and the song-requesting keywords are used for jumping to a song-on-demand page of the second user;

sending song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the triggering operation of the first user on the song-on-demand keyword;

receiving a demand request sent by the first terminal based on the demand operation of the first user on the demand page, wherein the demand request carries song information corresponding to the demand operation;

and sending the song information to a second terminal, wherein the second terminal is a terminal logged by the second user.

According to the embodiment provided by the disclosure, the server sends the song publishing page of the second user to the first terminal, the server sends the song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the trigger operation of the first user on the song-on-demand keyword, the server receives an on-demand request sent by the first terminal based on the on-demand operation of the first user on the on-demand page, the server sends the song information carried in the on-demand request to the second terminal, and the first user can request songs for the second user according to the song publishing page published by the second user.

In one possible implementation manner, the sending song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the triggering operation of the first user on the song-on-demand keyword includes:

acquiring a user identifier of the first user based on the trigger operation of the first user on the song-selecting keyword;

acquiring song information of a history playing song corresponding to the first user according to the user identifier of the first user;

and sending song information of the historical playing songs corresponding to the first user to the first terminal.

acquiring a user identifier of the second user;

acquiring song information of a song which is consistent with the type of the song performed by the second user according to the user identification of the second user;

and sending song information of the song which is consistent with the type of the song performed by the second user to the first terminal.

acquiring a user identifier of the second user;

acquiring song information of a song which is the same as singer information of the song performed by the second user according to the user identification of the second user;

and sending the song information of the song which is the same as the singer information of the song performed by the second user to the first terminal.

In one possible implementation, the sending the song information to the second terminal includes:

and adding the song information into the on-demand list of the second user, and sending the updated on-demand list to the second terminal.

In one possible implementation manner, after the sending the updated on-demand list to the second terminal, the method further includes:

receiving a request completion message sent by the second terminal, wherein the request completion message carries address information of the song recorded by the second user in response to the request;

and sending the on-demand completion message to the first terminal.

According to a third aspect of the embodiments of the present disclosure, there is provided a song requesting device applied to a first terminal, where a first user logs in to the first terminal, including:

the display unit is configured to execute displaying of a song release page of a second user, the song release page comprises song-requesting keywords of the second user, and the song-requesting keywords are used for jumping to an on-demand page of the second user;

the acquisition unit is configured to execute the trigger operation of the first user on the song-on-demand keyword, and acquire song information of a plurality of candidate song-on-demand of the second user from a server;

the display unit is further configured to display the on-demand page of the second user based on the song information of the candidate on-demand songs;

and the sending unit is configured to execute an on-demand operation on the on-demand page of the first user, and send an on-demand request to the server, wherein the on-demand request carries song information corresponding to the on-demand operation.

In one possible implementation, the obtaining unit is configured to perform the following steps:

In one possible implementation, the apparatus further includes:

and the receiving unit is configured to execute receiving of the on-demand completion message sent by the server, wherein the on-demand completion message carries address information of the song recorded by the second user in response to the on-demand request.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a song-on-demand apparatus applied to a server, including:

the song publishing page comprises song requesting keywords of the second user, and the song requesting keywords are used for jumping to a requesting page of the second user;

the sending unit is further configured to execute triggering operation of the song-on-demand keyword by the first user, and send song information of a plurality of candidate song-on-demand of the second user to the first terminal;

the receiving unit is configured to execute receiving of a video-on-demand request sent by the first terminal based on the video-on-demand operation of the first user on the video-on-demand page, wherein the video-on-demand request carries song information corresponding to the video-on-demand operation;

the transmitting unit is further configured to perform transmitting the song information to a second terminal, which is a terminal to which the second user logs in.

In one possible implementation, the sending unit is configured to perform the following steps:

acquiring a user identifier of the second user;

In a possible implementation manner, the receiving unit is further configured to perform receiving an on-demand completion message sent by the second terminal, where the on-demand completion message carries address information of a song recorded by the second user in response to the on-demand request;

the transmitting unit is further configured to perform transmitting the on-demand completion message to the first terminal.

According to a fifth aspect of embodiments of the present disclosure, there is provided a terminal, comprising one or more processors and one or more memories, where at least one instruction is stored in the one or more memories, and the instruction is loaded and executed by the one or more processors to implement the song-on-demand method provided by the first aspect or any one of the possible implementation manners of the first aspect.

According to a sixth aspect of embodiments of the present disclosure, there is provided a server including:

one or more processors;

one or more memories for storing the one or more processor-executable instructions;

wherein the one or more processors are configured to execute the instructions to implement the song-on-demand method provided by the second aspect described above or any one of the possible implementations of the second aspect described above.

According to a seventh aspect of embodiments of the present disclosure, there is provided a storage medium, where instructions, when executed by a processor of a first terminal, enable the first terminal to perform a song-on-demand method provided by the first aspect or any one of the possible implementations of the first aspect; the instructions in the storage medium, when executed by a processor of a server, enable the server to perform a song-on-demand method as provided by the second aspect described above or any one of the possible implementations of the second aspect described above.

According to an eighth aspect of embodiments of the present disclosure, there is provided a computer program product, comprising executable instructions, which when executed by a processor of a first terminal, enable the first terminal to perform a song-on-demand method provided by the first aspect or any one of the possible implementations of the first aspect; the instructions in the computer program product, when executed by a processor of a server, enable the server to perform a song-on-demand method as provided in the second aspect above or any one of the possible implementations of the second aspect above.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.

FIG. 1 is a schematic diagram of an implementation environment, shown in accordance with an exemplary embodiment;

FIG. 2 is an overall flow diagram illustrating a song-on-demand method in the form of a timeline, according to an exemplary embodiment;

FIG. 3 is a flow diagram illustrating a song-on-demand method in accordance with an exemplary embodiment;

FIG. 4 is a flow diagram illustrating a song-on-demand method in accordance with an exemplary embodiment;

FIG. 5 is a flow diagram illustrating a song-on-demand method based on the implementation environment schematic shown in FIG. 1, according to an exemplary embodiment;

FIG. 6 is a schematic diagram illustrating a song performance page in accordance with one illustrative embodiment;

FIG. 7 is a schematic diagram illustrating a song release page, according to an example embodiment;

FIG. 8 is a schematic diagram illustrating a home page of a user in accordance with an illustrative embodiment;

FIG. 9 is a diagram illustrating a song play list page for a song in accordance with an illustrative embodiment;

FIG. 10 is an on-demand listing diagram shown in accordance with an exemplary embodiment;

FIG. 11 is a block diagram of a song-on-demand device, shown in accordance with an exemplary embodiment;

FIG. 12 is a block diagram of a song-on-demand device, shown in accordance with an exemplary embodiment;

fig. 13 is a block diagram illustrating a terminal according to an exemplary embodiment;

fig. 14 is a schematic diagram illustrating a structure of a server 1400 according to an example embodiment.

Detailed Description

In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The user information to which the present disclosure relates may be information authorized by the user or sufficiently authorized by each party.

Fig. 1 is a schematic diagram of an implementation environment provided by an embodiment of the present disclosure, and referring to fig. 1, the implementation environment includes: a first terminal 101, a second terminal 102 and a server 103.

The first terminal 101 and the second terminal 102 are connected to the server 103 through a wireless network or a wired network. The first terminal 101 and the second terminal 102 may be at least one of a smart phone, a game console, a desktop computer, a tablet computer, an MP3 player, an MP4 player, and a laptop computer. The first terminal 101 and the second terminal 102 may be installed and run with an application program supporting a song-on-demand service. The application program can be any one of a video watching program, a social contact application program, an instant messaging program, an information sharing program and a karaoke application program. Illustratively, a first user is logged in the first terminal 101, a second user is logged in the second terminal 102, and a first user account and a second user account are respectively logged in the application programs running in the terminals.

The server 103 includes at least one of a server, a plurality of servers, a cloud computing platform, and a virtualization center, and the server 103 includes a user information database and a user behavior database. The user information database is used for storing data information and the like of the user, and the user behavior database is used for storing network behaviors of the user on the server, such as watching singing videos, historical song ordering information, historical singing song information and the like. Of course, the server 103 may also include other functional servers in order to provide more comprehensive and diversified services.

The first terminal 101 and the second terminal 102 may be generally referred to as one of a plurality of terminals, and the embodiment is only exemplified by the first terminal 101 and the second terminal 102. Those skilled in the art will appreciate that the number of first terminals and second terminals may be greater or less. For example, the number of the first terminals may be only a few, or the number of the first terminals may be several tens or hundreds, or the number is more, and the number and the device type of the first terminals and the second terminals are not limited in the embodiment of the present disclosure.

Fig. 2 is an overall flowchart illustrating a song-on-demand method expressed in the form of a time axis according to an exemplary embodiment, and as shown in fig. 2, the overall flowchart includes a first user and a second user, the first user is a reader-side user who performs song-on-demand, and the second user is an author-side user who performs song singing. The second user issues a K song work, the first user hopes to hear the second user to sing other songs after consuming the K song work issued by the second user, therefore, an on-demand list is sent to the second user, the on-demand list comprises song information of the song that the first user hopes the second user to sing, the second user sends an on-demand completion message to the first user after singing one or more songs in the on-demand list after receiving the on-demand list, the first user further consumes the singing work after receiving the on-demand completion message, and the second user is performed with the song again.

For example, the first user a requests song a for the second user, the first user B requests song B for the second user, the first user C requests song C for the second user, the first user sends the song information of the respective requested songs to the server, the server adds the song information of the song A, B, C to the request list of the second user, and sends the updated request list to the second user, and the second user sings the song a and the song B for the songs in the request list, so that the request completion message of the song a is sent to the first user a, and the request completion message of the song B is sent to the first user B. Since the second user has not sung song C, there is no need to send an on-demand completion message to the first user C.

Fig. 3 is a flowchart illustrating a song-on-demand method according to an exemplary embodiment, where as shown in fig. 3, the song-on-demand method is applied to a first terminal corresponding to a user on the reader side in fig. 2, where the first terminal is logged in with a first user, and includes the following steps:

in step 301, a song publishing page of a second user is displayed, where the song publishing page includes a song requesting keyword of the second user, and the song requesting keyword is used to jump to an on-demand page of the second user.

In step 302, if the triggering operation of the first user on the song-on-demand keyword is detected, song information of a plurality of candidate on-demand songs of the second user is obtained from a server.

In step 303, an on-demand page of the second user is displayed based on the song information for the plurality of candidate on-demand songs.

In step 304, if the on-demand operation of the first user on the on-demand page is detected, an on-demand request is sent to the server, where the on-demand request carries song information corresponding to the on-demand operation.

Fig. 4 is a flowchart illustrating a song-on-demand method, as shown in fig. 4, for a server, according to an exemplary embodiment, including the steps of:

in step 401, a song publishing page of a second user is sent to a first terminal, the first terminal logs in a first user, the song publishing page includes a song requesting keyword of the second user, and the song requesting keyword is used for jumping to a song on demand page of the second user.

In step 402, based on the trigger operation of the first user on the song-on-demand keyword, song information of a plurality of candidate songs on-demand of the second user is sent to the first terminal.

In step 403, an on-demand request sent by the first terminal based on an on-demand operation of the first user on the on-demand page is received, where the on-demand request carries song information corresponding to the on-demand operation.

In step 404, the song information is sent to a second terminal, which is the terminal the second user is logged in.

acquiring a user identifier of the second user;

and sending the on-demand completion message to the first terminal.

All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.

Fig. 5 is a flowchart of a song on-demand method provided by an embodiment of the present disclosure based on the implementation environment schematic diagram shown in fig. 1, where as shown in fig. 5, the method includes:

in step 501, the second terminal sends the song to be released recorded by the second user to the server, and the second terminal logs in the second user.

In step 501, the second user logs in the application supporting the song-on-demand service running in the second terminal, and the second user may select a song to sing, and collect and record the voice data of the singer, so as to complete the recording of the song. Fig. 6 is a schematic diagram of a song singing page during the song singing process of the second user, where the song singing page may include lyrics of a song, a song duration, a song score, a single-sentence singing score, a record completion button, and the like. After the recording button is clicked, the singing score of the second user is displayed on the second terminal, and the singing score can be in a digital form or a singing grade, which is not limited in the embodiment of the disclosure.

Optionally, when the second terminal issues the song, the second terminal may issue the song through an issuing function provided by the server, and the issuing function may also provide a setting function of the song-ordering keyword, that is, the second user may set the song-ordering keyword after the recording is completed through the setting function of the song-ordering keyword, so as to achieve the purpose of personalization.

In step 502, the server receives a song to be released, and generates a song releasing page of the second user according to the song to be released, wherein the song releasing page includes a song-requesting keyword of the second user, and the song-requesting keyword is used for jumping to a song-on-demand page of the second user.

In the embodiment of the present disclosure, the song-order keyword may be an application preset keyword, for example, the song-order keyword may be displayed in a # AAA # form, and after receiving the song to be released, the server automatically adds the song-order keyword on the release page of the song to be released. In another embodiment, the song-ordering keyword may also be set individually by the second user, that is, the server may receive the song-ordering keyword set by the second user when receiving the song to be released.

The server may add the song-on keyword to a preset position of the song release page in the process of generating the song release page, for example, fig. 7 is a schematic diagram of the song release page. In fig. 7, "# denotes my song order #" which is the above-mentioned song order keyword.

It should be noted that, when the second user does not want to receive the on-demand messages of other users, the second user may manually edit the page to be published, that is, the second user may manually delete the song-on-demand keywords in the page to be published.

In step 503, the first terminal sends an access request to the server, and the first terminal logs in the first user, and the access request is used for accessing the song distribution page of the second user.

In step 503, the first user may log in the application supporting the song-on-demand service running on the first terminal, and when the first user clicks the homepage of the second user, the first terminal is triggered to send an access request to the server, as shown in fig. 8, which is a schematic diagram of the homepage of a certain user; when the first user clicks a certain song released by the second user, the first terminal is triggered to send an access request to the server, as shown in fig. 9, a schematic diagram of a song singing list page of the certain song.

In step 504, the server transmits a song distribution page of the second user to the first terminal in response to the access request of the first terminal.

Based on the difference of the access portal of the first terminal in step 503, the song distribution page may have different display forms, for example, when the access portal sent by the first terminal is a personal homepage, the server responds to the access request of the personal homepage, and the song distribution page sent to the first terminal may include song information of all songs sung by the user of the homepage.

When the access entry transmitted by the first terminal is a certain song, the server responds to the access request of the song, and the song information of the song can be only included in the song publishing page transmitted to the first terminal.

In step 505, the first terminal receives the song release page of the second user sent by the server, and displays the song release page of the second user, wherein the song release page includes the song-requesting keyword.

The song-requesting keyword can be personalized setting of a second user or preset song-requesting keyword for the application supporting song on demand. The song distribution page may also provide for operation of song playback. The first user can click a play button in the song publishing page to listen to the song.

In a possible implementation manner, the first terminal displays a song publishing page not containing the song requesting keyword, when the first user listens to the songs carried in the song publishing page for a predetermined time or the first user listens to the songs in the song publishing page for a predetermined number, the first terminal may display a card containing the song requesting keyword, and when the first terminal detects that the first user clicks the card, that is, the first terminal detects that the first user triggers the song requesting keyword, step 506 may be continuously executed, so that the song requesting function can be pushed to the user interested in the user in a targeted manner, and disturbance to the second user can also be avoided.

In step 506, if the first terminal detects the trigger operation of the first user on the song-on-demand keyword, an acquisition request is sent to the server, where the acquisition request is used to acquire song information of a plurality of candidate song-on-demand of the second user.

In step 506, the obtaining request may carry the user identifier of the first user and the user identifier of the second user. The user identification of the first user and the user identification of the second user are used for acquiring song information of the historical consumption song of the first user and song information of the historical singing song of the second user. The song information of the candidate on-demand songs may include song names, singer names, song durations, song accompaniments, and the like.

In step 507, the server receives the obtaining request sent by the first terminal, and sends song information of a plurality of candidate on-demand songs of the second user to the first terminal.

In this embodiment of the present disclosure, after receiving the acquisition request of the first terminal, the server searches the storage space of the server for song information of a plurality of candidate on-demand songs of the second user, and any one of the following implementation manners may be used:

the method includes the steps that a server obtains a user identifier of a first user based on trigger operation of the first user on song-selecting keywords, and song information of a historical playing song corresponding to the first user is obtained according to the user identifier of the first user.

When the first user clicks the song-on-demand keyword, the first terminal is triggered to send the user identification of the first user to the server, the server obtains song information of a plurality of songs corresponding to the user identification according to the user identification of the first user, the plurality of songs are historical playing songs of the first user, and the plurality of songs are used as candidate song-on-demand of the second user.

And the server acquires the user identification of the second user and acquires the song information of the song which is in accordance with the type of the song performed by the second user according to the user identification of the second user.

When the first user clicks the song-ordering keyword, the first terminal is triggered to send the user identification of the second user associated with the song-ordering keyword to the server, the server obtains a plurality of songs corresponding to the user identification according to the user identification of the second user, and the songs corresponding to the song types of the songs associated with the song-ordering keyword are selected from the plurality of songs to serve as a plurality of candidate song-ordering of the second user.

And the server acquires the user identification of the second user, and acquires the song information of the song which is the same as the singer information of the song performed by the second user according to the user identification of the second user.

When the first user clicks the song-ordering keyword, the first terminal is triggered to send the user identification of the second user associated with the song-ordering keyword to the server, the server obtains a plurality of songs corresponding to the user identification according to the user identification of the second user, and the songs with the same singer information as the songs associated with the song-ordering keyword are selected from the plurality of songs to serve as a plurality of candidate song-ordering of the second user.

It should be noted that the server may select any one of the above implementation manners to obtain the song information of the plurality of candidate songs of the second user, may also perform song obtaining based on all the above three possible implementation manners, and then uses the song information of the songs obtained by the above three possible implementation manners as the song information of the plurality of candidate on-demand songs of the second user, so that the coverage of the candidate on-demand songs is most comprehensive.

In step 508, the first terminal receives song information for a plurality of candidate on-demand songs of the second user and displays the song information on an on-demand page of the second user.

In step 508, the first terminal displays the received song information of the candidate on-demand songs on the on-demand page of the second user, so that the first user can request songs for the second user. In the embodiment of the present disclosure, the on-demand page may display a plurality of songs, and the display modes of the on-demand page may include the following two types:

first, each song is followed by a first click button.

In the second mode, a check button is arranged behind each song, and a second on-demand button for submitting a plurality of on-demand songs at one time is also provided in the on-demand page.

In the disclosed example, the song information of the plurality of candidate on-demand songs may be displayed in the first terminal in the following two display orders: in the first mode, the first terminal can sort according to the ordered times of the candidate ordered songs, the ordered times are higher, the order in the candidate song list is closer, the ordered times can reflect the popular degree of the songs, and the audio-visual experience of the user can be improved by recommending the popular songs to the user. In the second mode, the first terminal can obtain a plurality of candidate on-demand songs of the second user, perform similarity calculation on the candidate on-demand songs and the singing songs of the second user to obtain the similarity of each candidate on-demand song, and sort the candidate on-demand songs according to the sequence of the similarity from large to small, wherein the similarity calculation can be used as the adaptation condition between the second user of the author and the candidate on-demand songs, so that the sorting is performed according to the adaptation degree, namely the degree of whether the song is the good singing degree of the user from high to low, so that the optimal on-demand effect is achieved, and the audio-visual experience of the user is improved.

In step 509, after the first terminal detects the on-demand operation of the first user on the on-demand page, an on-demand request is sent to the server, where the on-demand request carries song information corresponding to the on-demand operation.

It should be noted that the on-demand request also carries a user identifier of the second user, and the server is configured to send the on-demand request to the second user according to the user identifier.

In the above step 509, when the first terminal detects the trigger operation of the first user on the first on-demand button behind any one of the songs on the on-demand page, the first terminal detects the on-demand operation of the first user on the on-demand page, and the first terminal obtains song information corresponding to the on-demand operation from the song information of the candidate on-demand songs, and carries the song information in the on-demand request to send the song information. For the on-demand operation, the first user can also order a plurality of songs to the second user at one time, the first user can click the check button behind each song, after the check is finished, the second on-demand button of the on-demand page is clicked, an on-demand request is sent to the server, and the on-demand request carries the song information of the plurality of songs checked by the first user, so that the purpose of ordering the plurality of songs at one time is achieved.

In the embodiment of the disclosure, after the first terminal sends the on-demand request to the server, the first user can be informed that the on-demand request has been successfully sent in a pop-up window notification manner.

In step 510, the server receives the on-demand request sent by the first terminal, and adds the song information carried in the on-demand request to the on-demand list of the second user.

In step 510, after receiving the request for requesting from the first terminal, the server sends, according to the user identifier carried in the request for requesting, a notification message to the user corresponding to the user identifier, where the notification message carries the song information in the request for requesting, and the notification message is used to notify the second user to sing the song requested by the first user in time, where the notification message may be in a form of "i have requested" ten years "for you and please sing in time", and the notification message may also carry a song link for requesting the song, and the second user may enter a song sing page by clicking the link.

In the embodiment of the disclosure, after receiving a request for requesting from a first terminal, a server extracts a user identifier of a second user from the request for requesting, obtains a list for requesting of the second user according to the user identifier of the second user, and adds song information carried in the request for requesting to the list for requesting of the second user to form a new list for requesting. The on-demand list is shown in fig. 10, and includes song names, singer names, song on-demand times, head images of on-demand users, nicknames of on-demand users, and singing buttons.

When a plurality of first users order the same song for a second user, head portraits and nicknames of the ordering users are displayed in an ordering list according to the ordering sequence. Optionally, the songs in the song order list are ranked from high to low according to the number of times of singing, the songs not sung by the second user are ranked in front, and the songs already sung by the second user are ranked in back.

In step 511, the server transmits the updated on-demand list to the second terminal.

In step 512, the second terminal receives the on-demand list and displays the on-demand list.

In step 513, the second user records the song in response to the on-demand request in the on-demand list.

In step 513, the second user browses the songs in the on-demand list and selects a song, and clicks the song button on the right side of the song to enter the song singing page, and records the song.

In a possible implementation manner, the second user may also publish the first singing song, and when the song is published, the second terminal may automatically generate a section of description text for the song, or the server may generate a section of description text according to the on-demand user, the on-demand song, and a preset description template after the second terminal is published, where the section of description text is used to attract other users to interact with the second user. The descriptive text may be in a form of "i sing the song of singing, you like to listen to the song of singing i welcome as me song" and this is not limited by the embodiments of the present disclosure.

In step 514, the second terminal sends an on-demand completion message to the server, where the on-demand completion message carries the song address of the song recorded by the second user in response to the on-demand request.

In step 514, after the second terminal detects that the second user completes the singing on the song singing page, an on-demand completion message is automatically generated for the singing song, where the on-demand completion message includes the song address of the singing song and the user identifier of the first user who requests the song.

In a possible implementation manner, after the second terminal sends the on-demand completion operation to the server successfully, the second user may be informed in a pop-up window notification manner that the on-demand completion message has been sent successfully.

In step 515, the server receives the on-demand completion message and sends the on-demand completion message to the first terminal.

After receiving the request completion message, the server extracts the user identifier of the first user requesting the song from the request completion message, and sends the request for requesting completion to the first terminal corresponding to the first user, so as to inform the first user that the requested song is sung by the second user and please listen in time.

In step 516, the first terminal receives the on-demand completion message, detects that the first user clicks the song address carried in the on-demand completion message, and plays the on-demand song.

In the embodiment of the disclosure, the first terminal receives the request completion message, and displays the request completion message on the first terminal after detecting that the first user opens the message, because the request completion message carries the song address of the requested song, the first user clicks the song address, and after detecting that the first user clicks the song address, the first terminal directly jumps to the detail page of the song, and the first terminal plays the song requested.

In the embodiment provided by the disclosure, the first terminal receives the song release page of the second user, which is returned by the server according to the access request of the first terminal, the first user requests the second user to play the song in the song release page, the server sends the on-demand request to the second terminal, the second user sings a song according to the on-demand request, the second terminal generates an on-demand completion message according to the second user singing, the on-demand completion message is sent to the server, the server forwards the on-demand completion message to the first terminal, the first user can listen to the on-demand song carried in the on-demand completion message, the whole scheme provides an on-demand function issued by the first user and the second user through an author side, a reader side can perform an interactive mode of ordering songs based on the on-demand function, and therefore interactive experience between the first user and the second user is improved. Further, in the interaction process, the first user and the second user send notification messages to notify whether the on-demand is finished or an on-demand event occurs, so as to achieve the purpose of timely notification and improve the message arrival rate between the users.

FIG. 11 is a block diagram of a song-on-demand device, according to an exemplary embodiment. Referring to fig. 11, the apparatus includes a display unit 1101, an acquisition unit 1102, and a transmission unit 1103.

A display unit 1101 configured to perform displaying a song distribution page of a second user, the song distribution page including a song-on-demand keyword of the second user, the song-on-demand keyword being used to jump to an on-demand page of the second user;

an obtaining unit 1102 configured to execute, if the trigger operation of the first user on the song-on-demand keyword is detected, obtaining song information of a plurality of candidate on-demand songs of the second user from a server;

the display unit 1101 is further configured to perform displaying an on-demand page of the second user based on song information of the plurality of candidate on-demand songs;

the sending unit 1103 is configured to send, to the server, an on-demand request if it is detected that the first user performs an on-demand operation on the on-demand page, where the on-demand request carries song information corresponding to the on-demand operation.

In one possible implementation, the apparatus further includes:

FIG. 12 is a block diagram of a song-on-demand device, according to an exemplary embodiment. Referring to fig. 12, the apparatus includes a transmitting unit 1201 and a receiving unit 1202.

A sending unit 1201 configured to execute sending a song release page of a second user to a first terminal, where the first terminal is logged with a first user, the song release page includes a song-on-demand keyword of the second user, and the song-on-demand keyword is used to jump to an on-demand page of the second user;

the sending unit 1201 is further configured to execute a triggering operation of the song-on-demand keyword by the first user, and send song information of a plurality of candidate song-on-demand of the second user to the first terminal;

a receiving unit 1202, configured to execute receiving an on-demand request sent by the first terminal based on an on-demand operation of the first user on the on-demand page, where the on-demand request carries song information corresponding to the on-demand operation;

the transmitting unit 1201 is further configured to perform transmitting the song information to a second terminal, which is a terminal to which the second user logs in.

acquiring a user identifier of the second user;

and sending the song information of the same song as the singer information of the song performed by the second user to the first terminal.

It should be noted that: in the above embodiment, the song ordering apparatus is described by way of example only by dividing the functional modules, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the embodiments of the song on-demand device and the song on-demand method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the embodiments of the methods for details, and are not described herein again.

Fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. The terminal 1300 may be: a smart phone, a tablet computer, an MP3(Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4) player, a notebook computer or a desktop computer. Terminal 1300 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc.

In general, terminal 1300 includes: one or more processors 1301 and one or more memories 1302.

Processor 1301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 1301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 1301 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also referred to as a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 1301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing content that the display screen needs to display. In some embodiments, processor 1301 may further include an AI (Artificial intelligence) processor for processing computational operations related to machine learning.

Memory 1302 may include one or more computer-readable storage media, which may be non-transitory. The memory 1302 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 1302 is used to store at least one instruction for execution by processor 1301 to implement the song-on-demand method provided by method embodiments of the present disclosure.

In some embodiments, terminal 1300 may further optionally include: a peripheral interface 1303 and at least one peripheral. Processor 1301, memory 1302, and peripheral interface 1303 may be connected by a bus or signal line. Each peripheral device may be connected to the peripheral device interface 1303 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 1304, display screen 1305, camera assembly 1306, audio circuitry 1307, positioning assembly 1308, and power supply 1309.

Peripheral interface 1303 may be used to connect at least one peripheral associated with I/O (Input/Output) to processor 1301 and memory 1302. In some embodiments, processor 1301, memory 1302, and peripheral interface 1303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1301, the memory 1302, and the peripheral device interface 1303 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The Radio Frequency circuit 1304 is used to receive and transmit RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 1304 communicates with communication networks and other communication devices via electromagnetic signals. The radio frequency circuit 1304 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 1304 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 1304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 1304 may also include NFC (Near Field Communication) related circuits, which are not limited by this disclosure.

The display screen 1305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 1305 is a touch display screen, the display screen 1305 also has the ability to capture touch signals on or over the surface of the display screen 1305. The touch signal may be input to the processor 1301 as a control signal for processing. At this point, the display 1305 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, display 1305 may be one, providing the front panel of terminal 1300; in other embodiments, display 1305 may be at least two, either on different surfaces of terminal 1300 or in a folded design; in still other embodiments, display 1305 may be a flexible display disposed on a curved surface or on a folded surface of terminal 1300. Even further, the display 1305 may be arranged in a non-rectangular irregular figure, i.e., a shaped screen. The Display 1305 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), or the like.

The camera assembly 1306 is used to capture images or video. Optionally, camera assembly 1306 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 1306 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

The audio circuit 1307 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 1301 for processing, or inputting the electric signals to the radio frequency circuit 1304 for realizing voice communication. For stereo capture or noise reduction purposes, multiple microphones may be provided, each at a different location of terminal 1300. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 1301 or the radio frequency circuitry 1304 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 1307 may also include a headphone jack.

The positioning component 1308 is used for positioning the current geographic position of the terminal 1300 for implementing navigation or LBS (Location Based Service). The Positioning component 1308 can be a Positioning component based on the GPS (Global Positioning System) of the united states, the beidou System of china, the graves System of russia, or the galileo System of the european union.

Power supply 1309 is used to provide power to various components in terminal 1300. The power source 1309 may be alternating current, direct current, disposable or rechargeable. When the power source 1309 comprises a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, terminal 1300 also includes one or more sensors 1310. The one or more sensors 1310 include, but are not limited to: acceleration sensor 1311, gyro sensor 1312, pressure sensor 1313, fingerprint sensor 1314, optical sensor 1315, and proximity sensor 1316.

The acceleration sensor 1311 can detect the magnitude of acceleration on three coordinate axes of the coordinate system established with the terminal 1300. For example, the acceleration sensor 1311 may be used to detect components of gravitational acceleration in three coordinate axes. The processor 1301 may control the display screen 1305 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 1311. The acceleration sensor 1311 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 1312 may detect the body direction and the rotation angle of the terminal 1300, and the gyro sensor 1312 may cooperate with the acceleration sensor 1311 to acquire a 3D motion of the user with respect to the terminal 1300. Processor 1301, based on the data collected by gyroscope sensor 1312, may perform the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

Pressure sensor 1313 may be disposed on a side bezel of terminal 1300 and/or underlying display 1305. When the pressure sensor 1313 is disposed on the side frame of the terminal 1300, a user's holding signal to the terminal 1300 may be detected, and the processor 1301 performs left-right hand recognition or shortcut operation according to the holding signal acquired by the pressure sensor 1313. When the pressure sensor 1313 is disposed at a lower layer of the display screen 1305, the processor 1301 controls an operability control on the UI interface according to a pressure operation of the user on the display screen 1305. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor 1314 is used for collecting the fingerprint of the user, and the processor 1301 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 1314, or the fingerprint sensor 1314 identifies the identity of the user according to the collected fingerprint. When the identity of the user is identified as a trusted identity, the processor 1301 authorizes the user to perform relevant sensitive operations, including unlocking a screen, viewing encrypted information, downloading software, paying, changing settings, and the like. The fingerprint sensor 1314 may be disposed on the front, back, or side of the terminal 1300. When a physical button or vendor Logo is provided on the terminal 1300, the fingerprint sensor 1314 may be integrated with the physical button or vendor Logo.

The optical sensor 1315 is used to collect the ambient light intensity. In one embodiment, the processor 1301 may control the display brightness of the display screen 1305 according to the ambient light intensity collected by the optical sensor 1315. Specifically, when the ambient light intensity is high, the display brightness of the display screen 1305 is increased; when the ambient light intensity is low, the display brightness of the display screen 1305 is reduced. In another embodiment, the processor 1301 can also dynamically adjust the shooting parameters of the camera assembly 1306 according to the ambient light intensity collected by the optical sensor 1315.

Proximity sensor 1316, also known as a distance sensor, is typically disposed on a front panel of terminal 1300. Proximity sensor 1316 is used to gather the distance between the user and the front face of terminal 1300. In one embodiment, the processor 1301 controls the display 1305 to switch from the bright screen state to the dark screen state when the proximity sensor 1316 detects that the distance between the user and the front face of the terminal 1300 gradually decreases; the display 1305 is controlled by the processor 1301 to switch from the rest state to the bright state when the proximity sensor 1316 detects that the distance between the user and the front face of the terminal 1300 is gradually increasing.

Those skilled in the art will appreciate that the configuration shown in fig. 13 is not intended to be limiting with respect to terminal 1300 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be employed.

Fig. 14 is a schematic diagram illustrating a structure of a server 1400 according to an exemplary embodiment, where the server 1400 may generate a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 1401 and one or more memories 1402, where the one or more memories 1402 store at least one instruction, and the at least one instruction is loaded and executed by the one or more processors 1401 to implement the song-on-demand method provided by the foregoing method embodiments. Certainly, the server 1400 may further have components such as a wired or wireless network interface, a keyboard, and an input/output interface, so as to perform input and output, and the server 1400 may further include other components for implementing the functions of the device, which is not described herein again.

In an exemplary embodiment, a computer-readable storage medium, such as a memory, including instructions executable by a processor of a server to perform the song-on-demand method of the above embodiments is also provided. For example, the computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a Compact Disc Read-Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A song on-demand method is applied to a first terminal, a first user logs in the first terminal, and the method comprises the following steps:

displaying an on-demand page of the second user based on the song information of the plurality of candidate on-demand songs;

if the on-demand operation of the first user on the on-demand page is detected, an on-demand request is sent to the server, the on-demand request carries song information corresponding to the on-demand operation, the on-demand request is used for indicating the server to send the song information corresponding to the on-demand operation to the second user, and the second user records the song corresponding to the on-demand operation.

2. The method of claim 1, wherein obtaining song information for a plurality of candidate on-demand songs by the second user from a server comprises:

3. The method of claim 1, wherein obtaining song information for a plurality of candidate on-demand songs by the second user from a server comprises:

song information of a song that matches a type of song that the second user has performed is obtained from the server.

4. The method of claim 1, wherein obtaining song information for a plurality of candidate on-demand songs by the second user from a server comprises:

acquiring song information of a song that is the same as singer information of a song that the second user has performed from the server.

5. The method of claim 1, wherein after sending the on-demand request to the server, the method further comprises:

and receiving a request completion message sent by the server, wherein the request completion message carries address information of the song recorded by the second user in response to the request.

6. A song on-demand method is applied to a server, and the method comprises the following steps:

receiving a demand request sent by the first terminal based on a demand operation of the first user on the demand page, wherein the demand request carries song information corresponding to the demand operation;

and sending the song information to a second terminal, wherein the second terminal is a terminal logged by the second user, and the second user records the song corresponding to the on-demand operation.

7. The method according to claim 6, wherein the sending song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the triggering operation of the song-on-demand keyword by the first user comprises:

8. The method according to claim 6, wherein the sending song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the triggering operation of the song-on-demand keyword by the first user comprises:

acquiring a user identifier of the second user;

9. The method according to claim 6, wherein the sending song information of a plurality of candidate on-demand songs of the second user to the first terminal based on the triggering operation of the song-on-demand keyword by the first user comprises:

acquiring a user identifier of the second user;

10. The method of claim 6, wherein the transmitting the song information to the second terminal comprises:

11. The method of claim 10, wherein after sending the updated on-demand list to the second terminal, the method further comprises:

receiving a request completion message sent by the second terminal, wherein the request completion message carries address information of a song recorded by the second user in response to the request;

and sending the on-demand completion message to the first terminal.

12. A song-on-demand apparatus applied to a first terminal, the first terminal having a first user logged therein, the apparatus comprising:

and the sending unit is configured to execute an on-demand request to the server if the on-demand operation of the first user on the on-demand page is detected, wherein the on-demand request carries song information corresponding to the on-demand operation, and is used for indicating the server to send the song information corresponding to the on-demand operation to the second user, and the second user records the song corresponding to the on-demand operation.

13. The apparatus according to claim 12, wherein the obtaining unit is configured to perform the steps of:

14. The apparatus according to claim 12, wherein the obtaining unit is configured to perform the steps of:

15. The apparatus according to claim 12, wherein the obtaining unit is configured to perform the steps of:

16. The apparatus of claim 12, further comprising:

17. A song-on-demand apparatus, applied to a server, the apparatus comprising:

the sending unit is further configured to execute triggering operation of the first user on the song-on-demand keyword, and send song information of a plurality of candidate song-on-demand of the second user to the first terminal;

a receiving unit, configured to execute receiving an on-demand request sent by the first terminal based on an on-demand operation of the first user on the on-demand page, where the on-demand request carries song information corresponding to the on-demand operation;

the sending unit is further configured to execute sending of the song information to a second terminal, where the second terminal is a terminal where the second user logs in, and the second user records the song corresponding to the on-demand operation.

18. The apparatus according to claim 17, wherein the transmitting unit is configured to perform the following steps:

19. The apparatus according to claim 17, wherein the transmitting unit is configured to perform the following steps:

acquiring a user identifier of the second user;

20. The apparatus according to claim 17, wherein the transmitting unit is configured to perform the following steps:

acquiring a user identifier of the second user;

21. The apparatus according to claim 17, wherein the transmitting unit is configured to perform the following steps:

22. The apparatus according to claim 17, wherein the receiving unit is further configured to perform receiving an on-demand completion message sent by the second terminal, where the on-demand completion message carries address information of a song recorded by the second user in response to the on-demand request;

23. A terminal, comprising one or more processors and one or more memories having stored therein at least one instruction, which is loaded and executed by the one or more processors to perform operations performed by the method of any one of claims 1 to 5.

24. A server, comprising:

one or more processors;

wherein the one or more processors are configured to execute the instructions to implement the song-on-demand method of any one of claims 6 to 11.

25. A storage medium, wherein instructions in the storage medium, when executed by a processor of a first terminal, enable the first terminal to perform a song-on-demand method according to any one of claims 1 to 5; the instructions in the storage medium, when executed by a processor of a server, enable the server to perform a song-on-demand method as claimed in any one of claims 6 to 11.