WO2018120819A1 - Method and device for producing presentation - Google Patents

Abstract

Provided in embodiments of the present application are a method and device for producing a presentation. The method comprises: loading a web page generated for a presentation; configuring a presentation element in the web page; adding audio data for the presentation element on a timeline, simultaneously playing back the audio data when playing back the presentation element according to the timeline; selecting a target time interval on the timeline; and re-adding audio data for the target time interval. The embodiments of the present application make a web element as the presentation element and allow, in comparison with video data, greatly reduced volume and reduced occupation of storage space; moreover, because the web element is rendered and loaded directly on the web page, the need for compression processing is obviated, and the clarity of the web element can be ensured.

Description

Method and device for making presentation Technical field

The present application relates to the field of web technologies, and in particular, to a method for fabricating a presentation and a device for making a presentation.

Background technique

In people's daily work, study and technical exchanges, for the convenience of a structured explanation, often use presentations to assist the speech.

In order to realize distance learning, the user usually records the operation of the presentation while the user is speaking, keeping the user's speech synchronized with the presentation.

Thereafter, other users can play the video data obtained by the screen recording, listen to the user's speech and view the content of the presentation without the user having to speak to other users in real time.

However, the video data obtained by recording the operation of the presentation is bulky and takes up a lot of storage space.

In order to reduce the storage space, the video data is often compressed to reduce the resolution of the video data, resulting in blurry content of the presentation.

Summary of the invention

In view of the above problems, the present application has been made in order to provide a method of fabricating a presentation and a corresponding apparatus for producing a presentation that overcomes the above problems or at least partially solves or alleviates the above problems.

According to an aspect of the present application, a method of making a presentation is provided, including:

Load a web page generated for the presentation;

Configuring a presentation element in the web page;

Adding audio data to the presentation element on a timeline to synchronously play the audio data when the presentation element is played in accordance with the timeline;

Selecting a target time interval on the time axis;

The audio data is re-added to the target time interval.

According to another aspect of the present application, a production apparatus for a presentation is provided, including:

a web page loading module adapted to load a web page generated for the presentation;

a presentation element configuration module adapted to configure a presentation element in the web page;

An audio data adding module adapted to add audio data to the presentation element on a time axis to synchronously play the audio data when the presentation element is played according to the time axis;

a target time interval selection module adapted to select a target time interval on the time axis;

An audio data adding module adapted to re-add audio data to the target time interval.

According to another aspect of the present application, there is provided a computer program comprising computer readable code causing the terminal device to perform the production of any of the aforementioned presentations when the computer readable code is run on a terminal device method.

According to another aspect of the present application, there is provided a computer readable medium storing a computer program of a method of fabricating a presentation as described above.

The embodiment of the present application loads a web page generated for a presentation in a client, and configures a presentation element in the web page, and further adds audio data to the presentation element on the timeline, so that the presentation can be played according to the timeline The elements are synchronized to play audio data, the web page is used as a carrier to create a presentation, and the audio data is used to synchronize the presentation of the presentation elements and audio data, allowing the user to view the contents of the presentation and listen to the presentation of the presentation. Using the web element as a presentation element, compared to the video data, can greatly reduce the mention, reduce the occupation of the storage space, and, because the web element is directly drawn and loaded on the web page, without compression processing, the web element can be guaranteed. Sharpness, on the other hand, by re-adding audio data to the target time interval, the user is prevented from manually deleting the uncovered audio data, and the limitation on the length of the re-added audio data is removed, thereby improving the efficiency of production.

The above description is only an overview of the technical solutions of the present application, and the technical means of the present application can be more clearly understood, and the above and other objects, features and advantages of the present application can be more clearly understood. The following is a specific embodiment of the present application.

DRAWINGS

Various other advantages and benefits will become apparent to those skilled in the art from a The drawings are only for the purpose of illustrating the preferred embodiments and are not intended to be limiting. Throughout the drawings, the same reference numerals are used to refer to the same parts. In the drawing:

1 is a flow chart showing the steps of an embodiment of a method for creating a presentation according to an embodiment of the present application;

2A-2C illustrate example diagrams of a configuration presentation element in accordance with one embodiment of the present application;

3A-3D illustrate example diagrams of editing a presentation element and audio data playback order, in accordance with one embodiment of the present application;

4A-4D illustrate example diagrams of playing presentation elements and audio data in accordance with one embodiment of the present application;

5A-5B illustrate example diagrams of recording audio data in accordance with one embodiment of the present application;

6A-6C illustrate example diagrams of a selection re-recording in accordance with one embodiment of the present application;

FIG. 7 is a structural block diagram of a device for fabricating a presentation according to an embodiment of the present application;

Figure 8 schematically shows a block diagram of a terminal device for performing the method according to the present application;

Fig. 9 schematically shows a storage unit for holding or carrying program code implementing the method according to the present application.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided to provide a more thorough The disclosure is to be understood, and the scope of the present disclosure can be fully conveyed to those skilled in the art.

1 is a flow chart showing the steps of an embodiment of a method for creating a presentation according to an embodiment of the present application. Specifically, the method may include the following steps:

Step 101: Load a web page generated for the presentation.

In the embodiment of the present application, the user can log in to the server by using a user account on a client such as a browser, and send a request for generating a presentation to the server.

If the server receives the build request sent by the client, it can configure a new presentation and configure the presentation with a unique presentation identifier, such as slide_id (slide ID), which is used to generate a unique one for the presentation. Edit the URL (Uniform Resource Locator) and return the URL for editing to the client.

For example, if the slide_id of a presentation ID is abcd1234, the URL that can be generated for editing is https://ppt.***.com/editor? Slide_id=abcd1234, where "***" is the domain name of the server.

The client accesses the URL for editing to load a web page, which is the carrier of the presentation, ie the presentation can edit the content in the web page.

Of course, if the presentation has been generated in the first place, the information of the presentation can be displayed in the area such as the user center. After the user clicks, the client can directly load the web page by using the URL for editing, which is not used in the embodiment of the present application. limit.

In addition, when the presentation is edited, the presentation ID is used to generate a unique URL for the presentation, and the URL for the presentation is returned to the client.

For example, if the slide_id of a presentation ID is abcd1234, the URL for editing can be generated as http://ppt.***.com/present? Slide_id=abcd1234#/, where "***" is the domain name of the server.

The client can access the URL for the presentation to load the web page, which is the carrier of the presentation, ie the presentation can be played in the web page.

Step 102, configuring a presentation element in the web page.

Have one or more web action controls in the web page, the user can click through the mouse This way, the web action control is triggered to add a presentation element.

In one example, as shown in FIG. 2A, the presentation elements can include one or more of the following:

Text, images, images of specified shapes, lines, tables, frames, and code.

In the web page, you can directly manipulate these presentation elements, edit some of the element parameters, for example, adjust the font's text box, image, image, line, table frame, code, etc. The size of the presentation element in the web page, rotate the font Presentation elements such as text boxes, images, images, lines, table frames, code, etc., dragging text boxes, images, images, lines, table frames, code, etc. of the presentation elements in the position of the web page, text in the text Enter text in presentation elements such as boxes, tables, and more.

In addition, the user can trigger the presentation element to edit state by clicking or the like. At this time, the editing operation bar of the presentation element is popped up in the web page, and the user can display the element of the presentation element in the editing operation column. Parameters for the user to adjust.

For example, as shown in FIG. 2B, if a text box of text is inserted in a web page, if the user clicks on the text box, the edit operation bar of the text box can be popped up in the web page, and the user can set the font alignment and font. Play multiplier, font color, line spacing, font spacing and other element parameters.

For another example, as shown in FIG. 2C, if a form is inserted in the web page, if the user clicks on the form, the edit operation column of the table may be popped up in the web page, and the user may set the number of rows, the number of columns, and the cell. Element parameters such as margins, border width, and border color.

It should be noted that these element parameters may be the same as or different from the types of editing that can be directly performed on the presentation elements, and the embodiment of the present application does not limit this.

For the editing of the presentation element configuration, the user can save it manually, or the script of the client executing the web page can be automatically saved. The parameters configured in the presentation element of the web page can be synchronized with the server during saving, and the server takes the parameter. Store under the presentation (represented by the presentation ID) for subsequent loading.

Of course, if the presentation has been generated before, the information of the presentation can be displayed in the user center and the like area, and after the user clicks, the client loads the web page by using the URL for editing. At the same time, the corresponding presentation element is loaded according to the previously set element parameters, so that the user can continue editing, which is not limited by the embodiment of the present application.

Step 103, adding audio data to the presentation element on a time axis to synchronously play the audio data when the presentation element is played according to the time axis.

In the embodiment of the present application, in order to control the playing of the presentation, the client can configure a timeline and set the playing time of the presentation element on the timeline.

In addition, the user can record audio data, and the client adds audio data to the presentation element, such as a user's speech, so that the presentation elements can be played while the audio data is being played on the time axis, so that the two can be synchronized.

In the editing state, as shown in FIG. 3A, FIG. 3B, FIG. 3C, and FIG. 3D, the user can set the playing time of the presentation element. With the passage of time, when the audio data is set to be played, the speech can be set to be switched in order. The manuscript elements, that is, the text "Quiet Night Thinking", "Li Bai", "Before the Moon".

In the speech state, as shown in FIG. 4A, FIG. 4B, FIG. 4C, and FIG. 4D, the timing control is displayed in the lower left corner, and as time passes, the audio presentation data is played, and the presentation document elements are switched in order, that is, the text is displayed. "Quiet night thinking", "Li Bai", "before the bed bright moonlight".

In an embodiment of the present application, step 103 may include the following sub-steps:

Sub-step S11, the recorder is called to record audio data to the presentation element.

In the embodiment of the present application, if the terminal where the client is located is configured with a microphone, the microphone can be called to collect the original audio data, and the recorder is called to record the audio data.

For example, as shown in FIG. 5A and FIG. 5B, in a web page, a recording control can be loaded, after clicking the recording control, recording is started, and a visual element of the audio data is displayed on the axis element of the visual axis of the time axis. .

In an example of an embodiment of the present application, the sub-step S11 may include the following sub-steps:

Sub-step S111, acquiring original audio stream data collected by the microphone;

Sub-step S112, the original audio stream data is transmitted to the recorder;

Sub-step S113, the original audio stream data is visualized in the recorder according to the recording parameters, and the original audio stream data is converted into audio data of a specified format.

In this example, the client can obtain the original audio stream data collected by the microphone through the getUserMedia interface provided by WebRTC (Web Real-Time Communication).

Create an audio stream source node through the createMediaStreamSource method of the Web Programming API (Application Programming Interface), and pass the audio source to the Recorder Recorder for initialization of the recorder.

In the recorder, a script processing node is created by the createScriptProcess method of the Web Audio API, which is used to process raw audio stream data using Javascript.

In addition, the audio source node is connected to the processing node, and the processing node is connected to the audio output node to form a complete processing flow.

The processing node can listen to the AudioProcessingEvent event through the onaudioprocess method, and the event acquires a certain length of data from the original audio stream data for processing at regular intervals.

When you start recording, pass the recording-related parameters (such as the starting position, the size of the selection, and the remaining width to the right of the selection) to the Web Worker, and notify onaudioprocess for audio processing.

After the parameters are set, in the onaudioprocess, the original audio stream data is visualized by the drawAudioWave method (the visualized elements are generated based on the frequency, waveform and other attributes of the original audio stream data), and the audio data is transmitted to the Web Worker for audio. Temporary and preliminary processing.

When the recording is paused, the audio processing is paused, and a format file such as WAV is requested from the Web Worker, and the Web Worker converts the existing original audio stream data into audio data of a format such as WAV and returns it.

In this example, since the computing power of the client (such as a browser) is mostly limited, and the temporary storage and processing of the original audio stream data generally requires a large amount of computing power, another thread is opened by introducing a Web Worker. The temporary storage and processing of the original audio stream data is performed to ensure that other processing of the client (such as a browser) can be performed normally.

In another embodiment of the present application, step 103 may include the following sub-steps:

Sub-step S21, inputting text information to the presentation element;

Sub-step S22, converting the text information into audio data.

In the embodiment of the present application, if the terminal where the client is located is not configured with a microphone, the user may be allowed to By entering text information into the presentation elements, text information can be converted to audio data by speech synthesis (The Emperor Waltz, TEW).

Speech synthesis, also known as Text to Speech (TTS) technology, can usually include the following:

(1) Text analysis

Perform linguistic analysis on the input text information (simulating human understanding of natural language), lexical, grammatical and semantic analysis step by sentence to determine the low-level structure of the sentence and the composition of the phoneme of each word, including text Breaking sentences, word segmentation, processing of multi-syllable words, processing of numbers, processing of abbreviations, etc. Make the computer fully understand the input text and give the various pronunciation prompts needed in the last two parts.

(2) Prosody modeling

For the synthesis of speech, the characteristics of the segment, such as pitch, length and intensity, are made, so that the synthesized speech can correctly express the semantics and sound more natural.

(3) Speech synthesis (core module)

According to the result of prosody modeling, the phonetic primitives of the single words or phrases corresponding to the processed text are extracted from the speech synthesis library, and the prosody characteristics of the speech primitives are adjusted and modified by using a specific speech synthesis technique, and finally synthesized. Meet the required voice data.

Of course, the manner of adding audio data is only an example. In the implementation of the embodiment of the present application, other manners of adding audio data may be set according to actual conditions, for example, directly importing existing audio data, and the like. This is not limited. In addition, in addition to the above-mentioned judging processing method, those skilled in the art may also adopt other manners of adding audio data according to actual needs, and the embodiment of the present application does not limit this.

In the embodiment of the present application, when the addition of the audio data is completed, the audio data on the time axis can be uploaded to the server.

In the specific implementation, for recording audio data, the audio data can be retrieved from the Web Worker, and the audio file is compressed by the amrnb.js library, compressed into a specified format such as amr, and then uploaded to the server, the server stores Under the presentation (represented by the presentation ID) for subsequent loading.

Step 104, selecting a target time interval on the time axis.

In the embodiment of the present application, if the user is not satisfied with part of the content of the audio data, the unsatisfactory area may be selected for re-recording on the time axis, and the area is referred to as a target time interval.

In one example, as shown in FIG. 6A, the timeline has a visual axis element on the web page with a time scale on the axis element of the visualization, such as 00:00, 00:05, 00:10, etc. .

A scrolling marker strip is inserted over the visualized axis element, as shown in Figure 6A, with a solid dot, like a pin.

The interval between the start position and the end position of the scroll bar is taken as the target time interval as shown in the rectangular area of the visual axis element as shown in FIG. 6A.

Step 105, re-adding audio data to the target time interval.

When the audio data is re-added to the target time interval, the audio data in the uncovered area is automatically deleted to ensure the consistency of the audio data, and the re-recording is selected.

In addition, the client can replace the target time interval with audio data of any length, that is, the time of the added audio data can be longer than the length of the target time interval.

For example, if the selected target time interval is 10 seconds, but the newly recorded audio data is 2 seconds, the remaining 8 seconds of audio data is not overwritten, and the client automatically deletes the remaining 8 seconds of audio data.

In an embodiment of the present application, step 105 may include the following sub-steps:

Sub-step S31, deleting original audio data located in the target time interval;

Sub-step S32, moving original audio data located after the target time interval to a start time of the target time zone;

Sub-step S33, inserting new audio data from the start time of the target time interval, and moving the original audio data located after the target time interval to the end time of the new audio data.

In the embodiment of the present application, the original audio data is audio data before re-adding audio data, and the new audio data is re-added audio data.

The timeline has visual axis elements on the web page, and the audio data has visual audio elements on the visual axis elements.

The client can delete the original audio data located in the target time interval, and move the original audio data located after the target time interval to the start time of the target time zone to ensure the consistency of the audio data.

To facilitate user operation, as shown in FIG. 6B, the visualized audio elements of the original audio data located in the target time interval can be deleted on the visualized axis elements.

The visualized audio element of the original audio data located after the target time interval is moved to the start time of the target time zone.

When the audio data is re-recorded, new audio data can be inserted from the start time of the target time interval, and the original audio data located after the target time interval is moved to the end time of the new audio data, ensuring continuity of the audio data.

In order to facilitate the user's operation, as shown in FIG. 6C, the visualized audio element of the new audio data can be inserted from the start time of the target time zone, and the visualized audio element of the original audio data located after the target time zone is moved to the new audio. The data is visualized after the audio element.

At present, some recording editing applications may support selection re-recording, but generally delete the audio data in the covered area, the audio data in the uncovered area will be retained, and the user needs to manually delete it. In addition, the re-recorded The length of the audio data generally cannot exceed the area covered.

For example, if the selected target time interval is 10 seconds, but the newly recorded audio data is 2 seconds, the remaining 8 seconds of audio data is not overwritten, and the remaining 8 seconds of audio data still exists, the user needs to manually The remaining 8 seconds of audio data is selected for deletion, and the length of the recording cannot exceed 10 seconds.

The embodiment of the present application loads a web page generated for a presentation in a client, and configures a presentation element in the web page, and further adds audio data to the presentation element on the timeline, so that the presentation can be played according to the timeline The elements are synchronized to play audio data, the web page is used as a carrier to create a presentation, and the audio data is used to synchronize the presentation of the presentation elements and audio data, allowing the user to view the contents of the presentation and listen to the presentation of the presentation. Using the web element as a presentation element, compared to the video data, can greatly reduce the mention, reduce the occupation of the storage space, and, because the web element is directly drawn and loaded on the web page, without compression processing, the web element can be guaranteed. Sharpness, on the other hand, through the target time interval The audio data is re-added to prevent the user from manually deleting the uncovered audio data, thereby removing the limitation on the length of the re-added audio data and improving the efficiency of the production.

For the method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the embodiments of the present application are not limited by the described action sequence, because the embodiment according to the present application Some steps can be performed in other orders or at the same time. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required in the embodiments of the present application.

Referring to FIG. 7, a structural block diagram of a device for creating a presentation according to an embodiment of the present application is shown, which may specifically include the following modules:

a web page loading module 701, configured to load a web page generated for the presentation;

a presentation element configuration module 702 adapted to configure a presentation element in the web page;

An audio data adding module 703, configured to add audio data to the presentation element on a time axis to synchronously play the audio data when the presentation element is played according to the time axis;

a target time interval selection module 704, adapted to select a target time interval on the time axis;

The audio data adding module 705 is adapted to re-add audio data to the target time interval.

In an embodiment of the present application, the audio data adding module 701 includes:

A recording sub-module adapted to call the recorder to record audio data to the presentation element.

In an embodiment of the present application, the recording submodule includes:

The original audio stream data acquiring unit is adapted to acquire original audio stream data collected in the microphone;

a recorder incoming unit adapted to transmit the raw audio stream data to the recorder;

And a recorder processing unit adapted to visualize the original audio stream data in the recorder according to recording parameters, and convert the original audio stream data into audio data of a specified format.

In another embodiment of the present application, the audio data adding module 701 includes:

a text information input submodule adapted to input text information to the presentation element;

A text information conversion sub-module adapted to convert the text information into audio data.

In one embodiment of the present application, the timeline has a visual axis element on the web page;

The target time interval selection module 703 includes:

a scrolling marker strip insertion sub-module adapted to insert a scrolling marker strip on the visualized axis element;

The interval selection sub-module is adapted to use a section between the start position and the end position of the scroll marker as the target time interval.

In an embodiment of the present application, the audio data adding module 704 includes:

The original audio data deletion submodule is adapted to delete original audio data located in the target time interval;

An original audio data moving submodule adapted to move original audio data located after the target time interval to a start time of the target time zone;

A new audio data insertion sub-module adapted to insert new audio data from a start time of the target time interval and to move original audio data located after the target time interval to an end time of the new audio data.

In one embodiment of the present application, the timeline has a visual axis element on the web page, the audio data having a visualized audio element on the visualized axis element;

The audio data adding module 704 further includes:

An audio element deletion submodule adapted to delete a visualized audio element of the original audio data located in the target time interval on the visualized axis element;

An audio element moving submodule adapted to move a visualized audio element of the original audio data located after the target time interval to a start time of the target time zone;

An audio element insertion sub-module adapted to insert a visualized audio element of the new audio data from a start time of the target time zone and to move the visualized audio element of the original audio data located after the target time interval to the After the audio elements of the new audio data are visualized.

In an embodiment of the present application, the method further includes:

An audio uploading module adapted to upload audio data on the timeline to a server.

For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The various component embodiments of the present application can be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components of the presentation device in accordance with embodiments of the present application. The application can also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing some or all of the methods described herein. Such a program implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

For example, FIG. 8 illustrates a terminal device that can implement the production of a presentation according to the present application. The terminal device conventionally includes a processor 810 and a computer program product or computer readable medium in the form of a memory 820. The memory 820 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM. Memory 820 has a memory space 830 for program code 831 for performing any of the method steps described above. For example, storage space 830 for program code may include various program code 831 for implementing various steps in the above methods, respectively. The program code can be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such a computer program product is typically a portable or fixed storage unit as described with reference to FIG. The storage unit may have a storage section, a storage space, and the like arranged similarly to the storage 820 in the terminal device of FIG. The program code can be compressed, for example, in an appropriate form. Typically, the storage unit includes computer readable code 831', i.e., code readable by a processor, such as 810, that when executed by the terminal device causes the terminal device to perform each of the methods described above step.

The term "one embodiment", "an embodiment" or "one or more embodiments" is used herein to mean that the specific features, structures, or characteristics described in connection with the embodiments are included. In at least one embodiment of the present application. In addition, it is noted that the phrase "in one embodiment" is not necessarily referring to the same embodiment.

In the description provided herein, numerous specific details are set forth. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of the description.

It should be noted that the above-described embodiments are illustrative of the present application and are not intended to limit the scope of the application, and those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as a limitation. The word "comprising" does not exclude the presence of the elements or steps that are not recited in the claims. The word "a" or "an" The application can be implemented by means of hardware comprising several distinct elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by the same hardware item. The use of the words first, second, and third does not indicate any order. These words can be interpreted as names.

In addition, it should be noted that the language used in the specification has been selected for the purpose of readability and teaching, and is not intended to be interpreted or limited. Therefore, many modifications and changes will be apparent to those skilled in the art without departing from the scope of the invention. The disclosure of the present application is intended to be illustrative, and not restrictive, and the scope of the application is defined by the appended claims.

Claims (18)

A method of making a presentation, including: Load a web page generated for the presentation; Configuring a presentation element in the web page; Adding audio data to the presentation element on a timeline to synchronously play the audio data when the presentation element is played in accordance with the timeline; Selecting a target time interval on the time axis; The audio data is re-added to the target time interval. The method of claim 1 wherein said step of adding audio data to said presentation element on a time axis comprises: Call the recorder to record audio data for the presentation element. The method of claim 2 wherein said step of invoking said recorder element to record audio data for said presentation element comprises: Obtaining raw audio stream data collected in the microphone; Passing the original audio stream data to the recorder; The original audio stream data is visualized in the recorder according to recording parameters, and the original audio stream data is converted into audio data of a specified format. The method of claim 1 wherein said step of adding audio data to said presentation element on a time axis comprises: Entering text information for the presentation element; Converting the text information into audio data. The method of claim 1 or 2 or 3 or 4, wherein the timeline has a visual axis element on the web page; The step of selecting a target time interval on the time axis includes: Inserting a scrolling marker on the visualized axis element; The interval between the start position and the end position of the scroll marker is used as the target time interval. The method of claim 1 or 2 or 3 or 4, wherein said step of re-adding audio data to said target time interval comprises: Deleting original audio data located in the target time interval; Moving original audio data located after the target time interval to a start time of the target time zone; New audio data is inserted from the start time of the target time interval, and the original audio data located after the target time interval is moved to the end time of the new audio data. The method of claim 6 wherein said timeline has a visual axis element on said web page, said audio data having a visualized audio element on said visualized axis element; The step of re-adding audio data to the target time interval further includes: Decoding a visualized audio element of the original audio data located in the target time interval on the visualized axis element; Moving the visualized audio element of the original audio data located after the target time interval to a start time of the target time zone; Inserting a visualized audio element of the new audio data from a start time of the target time zone, and moving the visualized audio element of the original audio data located after the target time interval to the visualized audio element of the new audio data after that. The method of claim 1 or 2 or 3 or 4 or 7, further comprising: Upload audio data on the timeline to the server. A production device for a presentation, comprising: a web page loading module adapted to load a web page generated for the presentation; a presentation element configuration module adapted to configure a presentation element in the web page; An audio data adding module adapted to add audio data to the presentation element on a time axis to synchronously play the audio data when the presentation element is played according to the time axis; a target time interval selection module adapted to select a target time interval on the time axis; An audio data adding module adapted to re-add audio data to the target time interval. The apparatus of claim 9, wherein the audio data adding module comprises: A recording sub-module adapted to call the recorder to record audio data to the presentation element. The apparatus of claim 10 wherein said recording sub-module comprises: The original audio stream data acquiring unit is adapted to acquire original audio stream data collected in the microphone; a recorder incoming unit adapted to transmit the raw audio stream data to the recorder; And a recorder processing unit adapted to visualize the original audio stream data in the recorder according to recording parameters, and convert the original audio stream data into audio data of a specified format. The apparatus of claim 9, wherein the audio data adding module comprises: a text information input submodule adapted to input text information to the presentation element; A text information conversion sub-module adapted to convert the text information into audio data. The apparatus of claim 9 or 10 or 11 or 12, wherein the time axis has a visual axis element on the web page; The target time interval selection module includes: a scrolling marker strip insertion sub-module adapted to insert a scrolling marker strip on the visualized axis element; The interval selection sub-module is adapted to use a section between the start position and the end position of the scroll marker as the target time interval. The apparatus of claim 9 or 10 or 11 or 12, wherein the audio data adding module comprises: The original audio data deletion submodule is adapted to delete original audio data located in the target time interval; An original audio data moving submodule adapted to move original audio data located after the target time interval to a start time of the target time zone; A new audio data insertion sub-module adapted to insert new audio data from a start time of the target time interval and to move original audio data located after the target time interval to an end time of the new audio data. The apparatus of claim 14 wherein said timeline has a visual axis element on said web page, said audio data having a visualized audio element on said visualized axis element; The audio data adding module further includes: An audio element deletion submodule adapted to delete a visualized audio element of the original audio data located in the target time interval on the visualized axis element; An audio element moving submodule adapted to move a visualized audio element of the original audio data located after the target time interval to a start time of the target time zone; An audio element insertion sub-module adapted to insert a visualized audio element of the new audio data from a start time of the target time zone and to move the visualized audio element of the original audio data located after the target time interval to the After the audio elements of the new audio data are visualized. The apparatus of claim 9 or 10 or 11 or 12 or 15, further comprising: An audio uploading module adapted to upload audio data on the timeline to a server. A computer program comprising computer readable code causing the terminal device to perform a method of making a presentation according to any one of claims 1-8 when the computer readable code is run on a terminal device. A computer readable medium storing the computer program of claim 17.

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