KR102377080B1 - Apparatus for generating digital contents based on user interface of multi-track - Google Patents

Abstract

The present invention relates to a digital content generation device. According to one embodiment, the digital content generation device includes a multi-track control unit that generates a UI control signal based on a user input, and a bit track in a first area of the screen based on the UI control signal. , a display control unit that displays at least two multi-tracks among the video track and the audio track, and displays a record button in a second area of the screen.

Description

Digital content creation device based on multi-track UI {APPARATUS FOR GENERATING DIGITAL CONTENTS BASED ON USER INTERFACE OF MULTI-TRACK}

The present invention relates to a digital content creation device, and more specifically, to a technical idea of visualizing multi-tracks corresponding to data during a recording operation for video and audio data.

Recently, demand for video sharing apps such as YouTube, TikTok, and Triller is increasing.

These video sharing apps provide overall functions necessary for video sharing, such as video recording, editing, and uploading functions, but do not provide efficient visualization, recording, and editing functions for multi-tracks including multiple audio tracks. I can't do it.

Korean Patent No. 10-2058857, “Shooting device and shooting control method” Korean Patent Publication No. 10-2018-0014966, “Method for sharing unreleased new songs and providing audition services to discover singers”

The present invention seeks to provide a digital content generation device that can more efficiently perform recording operations on multi-tracks consisting of bit tracks, video tracks, and audio tracks.

Additionally, the present invention seeks to provide a digital content creation device that can efficiently visualize multi-tracks on a screen without blocking the images displayed on the screen as much as possible.

In addition, the present invention seeks to provide a digital content creation device that can improve user convenience by dividing multi-tracks into guide tracks and shooting tracks and visualizing the divided guide tracks and shooting tracks on the screen at the same time.

A digital content creation device according to an embodiment of the present invention includes a multi-track control unit that generates a UI control signal based on a user input, and at least one of a bit track, a video track, and an audio track in a first area of the screen based on the UI control signal. It may include a display control unit that displays two or more multi-tracks and displays a record button in a second area of the screen.

According to one side, the multi-track control unit divides the multi-track into a guide track for which recording work has been completed and a shooting track for which recording work is possible, displays the guide track in the first sub-area provided in the first area, and displays the shooting track in the first sub-area. A UI control signal for displaying in the second sub-area provided in the area can be generated.

According to one side, the multi-track control unit can distinguish between the video track and the audio track, the track of which the length of recorded data is longer than a preset threshold time, and the bit track as a guide track.

According to one side, the multi-track control unit can distinguish between the video track and the audio track, a track for which a recording completion signal according to a user input has been received, and a bit track as a guide track.

According to one side, the first sub-area includes a first track area that displays the first guide track among N tracks divided by guide tracks (where N is a positive integer), and an icon corresponding to the first guide track. It includes a displayed first icon area, and the second sub-area is a second track area that displays the first shooting track among M tracks divided into shooting tracks (where M is a positive integer), and the first shooting track. It may include a second icon area where an icon corresponding to the track is displayed.

According to one side, when a user input to the first icon area is detected, the multi-track control unit generates a UI control signal to control the display of a second guide track among N tracks divided by guide tracks in the first track area, When a user input to the second icon area is detected, a UI control signal may be generated to control display of the second shooting track among the M tracks divided into shooting tracks in the second track area.

According to one side, when a user input for a guide track is detected, the display control unit can display a play button in a second area of the screen.

According to one side, when a user input for a record button or a user input for executing a preset application is detected, the multi-track control unit displays at least one track and a bit track among the video track and the first audio track in the first area. UI control signals can be generated for.

According to one side, the multi-track control unit displays at least one track and a bit track among the video track and the first audio track in the first area, and when a user input to the record button is detected, the multi-track control unit displays the second audio track in the first area. UI control signals for display can be generated.

According to one side, in multi-track, at least one of the video track and the audio track may be synchronized to the bit track.

According to one side, the multi-track control unit generates a UI control signal that controls one track to be activated when a user input according to a touch operation of one of the multi-tracks is detected once, and the touch of any one track When user input according to an action is detected twice, a UI control signal is generated to display the edit menu for one track, and user input according to a touch action on one track that lasts for a preset input time is detected. If so, a UI control signal can be generated to display a track option menu for one track.

According to one side, the edit menu for one track may include at least one of an audio FX function, a track break function, a volume control function, and a track initialization function.

According to one side, the track option menu for one track may include at least one of a track deletion function and a track duplication function.

According to one side, the display control unit displays video data according to the recording or playback operation on the screen when a recording operation or playback operation corresponding to the video track is performed based on the user input for the video track, but the multi-track overlaps. You can control it to be displayed.

According to one embodiment, the present invention can more efficiently perform a recording operation on a multi-track consisting of a bit track, a video track, and an audio track.

According to one embodiment, the present invention can efficiently visualize multi-tracks on a screen without blocking the image displayed on the screen as much as possible.

According to one embodiment, the present invention can improve user convenience by dividing multi-tracks into guide tracks and shooting tracks and visualizing the divided guide tracks and shooting tracks on the screen simultaneously.

1 is a diagram for explaining a digital content creation device according to an embodiment.
Figure 2 is a diagram for explaining a digital content creation device according to the first embodiment.
Figure 3 is a diagram for explaining a digital content creation device according to a second embodiment.
Figure 4 is a diagram for explaining a digital content creation device according to a third embodiment.
Figure 5 is a diagram for explaining an operation example of a digital content creation device according to an embodiment.
FIG. 6 is a diagram illustrating an example of activating multi-track using a digital content creation device according to an embodiment.
FIG. 7 is a diagram illustrating an example of generating a bit track using a digital content generating device according to an embodiment.
FIG. 8 is a diagram for explaining an example of generating a video track using a digital content creation device according to an embodiment.
FIG. 9 is a diagram for explaining an example of generating a voice track using a digital content creation device according to an embodiment.
Figure 10 is a diagram for explaining the operating method of the digital content creation device according to the second embodiment.
FIG. 11 is a diagram for explaining an operating method of a digital content creation device according to a third embodiment.

Hereinafter, various embodiments of this document are described with reference to the attached drawings.

The examples and terms used herein are not intended to limit the technology described in this document to a specific embodiment, and should be understood to include various changes, equivalents, and/or substitutes for the embodiments.

In the following description of various embodiments, if a detailed description of a related known function or configuration is judged to unnecessarily obscure the gist of the invention, the detailed description will be omitted.

In addition, the terms described below are terms defined in consideration of functions in various embodiments, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

In connection with the description of the drawings, similar reference numbers may be used for similar components.

Singular expressions may include plural expressions, unless the context clearly indicates otherwise.

In this document, expressions such as “A or B” or “at least one of A and/or B” may include all possible combinations of the items listed together.

Expressions such as “first,” “second,” “first,” or “second,” can modify the corresponding components regardless of order or importance and are used to distinguish one component from another. It is only used and does not limit the corresponding components.

When a component (e.g., a first) component is said to be "connected (functionally or communicatively)" or "connected" to another (e.g., second) component, it means that the component is connected to the other component. It may be connected directly to an element or may be connected through another component (e.g., a third component).

In this specification, “configured to” means “suitable for,” “having the ability to,” or “changed to,” depending on the situation, for example, in terms of hardware or software. ," can be used interchangeably with "made to," "capable of," or "designed to."

In some contexts, the expression “a device configured to” may mean that the device is “capable of” working with other devices or components.

For example, the phrase "processor configured (or set) to perform A, B, and C" refers to a processor dedicated to performing the operations (e.g., an embedded processor), or by executing one or more software programs stored on a memory device. , may refer to a general-purpose processor (e.g., CPU or application processor) capable of performing the corresponding operations.

Additionally, the term 'or' means 'inclusive or' rather than 'exclusive or'.

That is, unless otherwise stated or clear from the context, the expression 'x uses a or b' means any of the natural inclusive permutations.

In the above-described specific embodiments, components included in the invention are expressed in singular or plural numbers depending on the specific embodiment presented.

However, the singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the above-described embodiments are not limited to singular or plural components, and even if the components expressed in plural are composed of singular or , Even components expressed as singular may be composed of plural elements.

Meanwhile, in the description of the invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the technical idea implied by the various embodiments.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims described below as well as equivalents to these claims.

1 is a diagram for explaining a digital content creation device according to an embodiment.

Referring to FIG. 1, the digital content creation device 100 according to an embodiment may include an input unit 110, a multi-track control unit 120, a recording control unit 130, and a display control unit 140.

For example, the digital content creation device 100 may be installed in at least one user terminal selected from a smartphone or a tablet PC, and may operate in conjunction with a video sharing application running on the user terminal.

The input unit 110 according to one embodiment includes an image input means capable of recording images such as a camera, a voice input means capable of recording voices such as a microphone, and a device capable of receiving a user's touch input on a screen provided in a user terminal. It may include a touch input means.

The user input described below refers to the user's touch input through a touch input means, but the user input according to one embodiment is not limited to this, and the user's gesture input using a video input means and the user's voice using a voice input means. It may also include command input.

The multi-track control unit 120 according to one embodiment may generate a UI control signal for displaying at least two multi-tracks among a bit track, video track, and audio track on the screen in response to user input.

For example, a beat track may include at least one of beat sound source data and background sound source data. Additionally, the beat track may be downloaded in advance from a bit data server and stored in the user terminal, or may be created in advance by the user and stored in the user terminal.

In addition, the video track is a track corresponding to at least one video data among video data being recorded (i.e., recorded) in real time through a video input means and video data that has been recorded (i.e., recorded), and the audio track is a track corresponding to an audio input means. It may be a track corresponding to at least one voice data among voice data being recorded (that is, recorded) in real time and voice data that has been recorded (that is, recorded).

The display control unit 140 according to one embodiment receives a UI control signal from the multi-track control unit 120, and based on the received UI control signal, does not block the image displayed on the screen as much as possible and efficiently displays the multi-track on the screen. It can be visualized as

Additionally, the display control unit 140 may visualize on the screen at least one virtual button among a record button, a record completion button, a play button, and a stop button, along with the image and multi-track displayed on the screen.

Specifically, when a user input to the record button is detected while any one of the multi-tracks is activated by a user input, the multi-track control unit 120 records real-time recording data (i.e., records in real time) corresponding to the activated track. video/audio data) can be created.

In addition, after the user input to the record button is detected, the multi-track control unit 120 detects the user input to the stop button (or the stop button + recording completion button), or the user input to the stop button is set to a preset threshold. If it is not detected until the time expires, the data recorded from the time of the first recording (0:00) until the time the input to the stop button is detected or the threshold time is converted to recorded data (i.e. video data for which recording is paused/completed and /or voice data).

According to one side, the preset threshold time may be the total playback time (i.e., bit length) of the bit track.

Specifically, the multi-track control unit 120 can perform recording (recording/recording) on a single track for up to 3 minutes and 40 seconds when the bit length of the preset bit track is 3 minutes and 40 seconds, and one track If recording progresses beyond 3 minutes and 40 seconds, only one file (data) can be created for one track, and if recording progresses three times within 3 minutes and 40 seconds for one track, one file (data) can be created for one track. Three files (data) can be created for a track.

According to one side, the input unit 110, the multi-track control unit 120, and the display control unit 140 may be controlled through the recording control unit 130. That is, the multi-track control unit 120 can be controlled through the recording control unit 130 to generate real-time recorded data and/or recorded data.

Meanwhile, when the display control unit 140 detects a user input to the record button, it can display a stop button instead of the record button at a position corresponding to the record button. Then, when a user input to the stop button is detected, the stop button is displayed. You can display the record button again instead of the stop button at the corresponding location.

Additionally, the display control unit 140 may visualize the recording completion button along with the stop button.

The multi-track control unit 120 and the display control unit 140 according to an embodiment will be described in more detail later with reference to FIG. 2 according to the embodiment.

The recording control unit 130 according to one embodiment receives real-time recording data or recorded data corresponding to at least one track among multi-tracks displayed on the screen, and applies at least one of a video effect and a voice effect to the received data. It can be applied.

Specifically, the recording control unit 130 may provide functions necessary for the overall multi-track recording process and editing process.

To this end, the recording control unit 130 may include an audio manager (AudioManager), an audio record manager (AudioRecordManager), a camera view manager (CameraViewManager), a media manager (MediaManager), and a video view manager (VideoViewManager).

Specifically, the audio manager is a manager that supports simultaneous playback of multiple tracks along with voice effects (effects such as Reverb, Delay, Distortion, Pitch Shift, and Pitch correction), where N tracks are simultaneously N (where N is a positive integer). ) can be played.

In order to play a voice track with voice effects, the audio manager can directly load PCM data and control the data with voice effects to be processed and played.

More specifically, in order to apply voice effects to the voice track, the audio manager uses a startSession function to initialize the voice track, a stopSession function to stop the voice track and return the corresponding resource, and a stopSession function to stop the voice track and return the corresponding resource, until the voice is output from the speaker of the actual user terminal when playing. You can use the getAudioDelay function, which returns the delay time, the setEffect function, which applies voice effects to the selected voice track, and the setEQ function, which sets the EQ for all tracks of the selected voice track.

In addition, the audio manager has a setVolume function that adjusts the volume of the selected voice track, a setPlaylist function that inputs the voice track information to be played, a setTotalDurationTime function that determines the total playback length of the selected voice track, and a fade-in (Fade-in) function that determines the total playback length of the selected voice track. in), the setFadeTiming function that specifies the fade-out time, the play function that plays the voice according to the start time of the voice track, and the stop function that stops the voice track currently playing.

The audio recording manager is a manager for recording (recording) only audio without recording (recording) video. To this end, the audio recording manager uses setEchoMode to echo (monitor) the voice currently coming into the microphone so that you can directly hear it along with the currently applied voice effect. You can use the functions, startAudioRecord function to start audio recording in an audio track, and stopAudioRecord function to stop audio recording in an audio track.

Here, the startAudioRecord function can control the creation and addition of a new voice file separately from the existing voice file when the voice track is re-recorded after stopping recording.

The camera view manager is a manager that outputs the screen received from the camera with a shader and records the video output in the shader state. To this end, the camera view manager runs the camera and receives real-time video information and real-time audio information. The following startSession function, the endSession function that terminates the camera and all actions related to it, the setCameraDirection function that sets the front/rear camera, the setFlashLight function that sets the camera flash, determines the shader of the camera view, and applies the set video effects. You can use the setShader function that sets the camera's zoom, the setZoom function that sets the camera's zoom, the startVideoRecord function that records real-time video and audio information visualized in the current camera view, and the stopVideoRecord function that ends recording.

Here, there is only one video track visualized among the multi-tracks, but the stopVideoRecord function allows you to create and add a new video file instead of continuing recording with the existing video file when re-recording after stopping recording.

The media manager is a manager for retrieving information from video and audio files recorded in response to the video track and audio track. To this end, the media manager uses the getVideoFileDescription function to retrieve the video length from the video file and thumbnails from multiple video files. getVideoPreviewBase64 function, which returns one image as a string, getVideoPreviewListBase64 function, which returns multiple thumbnail images from multiple video files as a list of strings, getAudioFileDescription function, which retrieves audio length information from an audio file, and getAudioVisualPCMData, which retrieves PCM data from an audio file. You can use functions.

The video view manager is a manager for playing multiple recorded video files with a specified shader. For this purpose, the video view manager uses the setPlaylist function to store the list of video files in the video track, and the fade-in and fade-out times when playing video. setFadeTiming function to save the video, play function to play the video according to the start time, stop function to end the video being played, seek function to describe/play a list of multiple video files with the corresponding files and time according to the video search, and video view. You can use the setShader function to set the shader.

Here, the video track is a single track, but the setPlaylist function can create and add a new video file instead of continuing recording with the existing video file when re-recording after stopping recording. Additionally, the setShader function can be applied to several image effect filters, including LUT (Look-Up Table) filters for images.

Meanwhile, the multi-track control unit 120 can encode data recorded/edited through the recording control unit 130, and may include an encoding manager (EncodingManager) for this purpose.

The encoding manager is a manager for creating the final video based on the project information stored in the project configuration information (Project.json). To this end, the encoding manager uses the encodeProject function to start encoding and the encodeProject function to stop encoding using the Project.json file. You can use the stop function, where the Project.json file can be created when entering the recording screen.

According to one side, during the multi-track recording process using the digital content creation device 100, when the recording screen is loaded after the recording screen is executed on the screen of the user terminal, the camera view manager activates the camera and the audio manager You can reset the volume, EQ, and voice effects of all tracks.

Next, when a video track is added/changed on the screen, the camera view manager can initialize the camera settings (direction, zoom, etc.), and the audio manager can initialize the volume, EQ, and voice effects of the track. When a voice track is added/changed, the audio manager can reset the volume, EQ, and voice effects of that track.

Next, when the video track is recorded on the screen, the camera view manager records video/audio data, and the audio manager can initialize the volume, EQ, and voice effects of the track.

Next, when recording of the voice track is performed on the screen, the voice data is recorded in the audio recording manager, and the audio manager can initialize the volume, EQ, and voice effects of the track.

Next, when a video effect is added/changed on the screen, the camera view manager applies the video effect to the video data, and when a voice effect is added/changed on the screen, the audio recording manager performs monitoring for the audio data and audio You can reset and change the voice effects of the voice track in the manager.

According to one side, during the multi-track editing process using the digital content creation device 100, when the editing screen is executed on the screen of the user terminal, the media manager can load video/audio file information for each track.

Next, when the editing screen is loaded on the screen, the video view manager can activate the video, and when stickers/text are added to the video on the screen, the video view manager can add video texture.

Next, when the length of the video on the screen is adjusted, the video view manager provides a video preview, and the media manager can retrieve the corresponding video file information.

Next, when the fade-in/fade-out effect of the video is applied on the screen, the video view manager provides a preview of the video fade effect, and the media manager can retrieve the corresponding video file information.

Next, when the fade-in/fade-out effect of the voice is applied on the screen, the audio manager provides a preview of the voice fade effect, and the media manager can load the corresponding voice file information.

Next, when EQ is applied on the screen, the audio manager provides a preview of the voice EQ, and the media manager can load the corresponding voice file information.

Next, when a video cover image is selected on the screen, the video view manager provides a corresponding video preview, and the media manager can retrieve information about one image selected through the user's input from the video preview.

The recording control unit 130 according to one embodiment will be described in more detail later with reference to FIGS. 3 and 4 according to the embodiment.

Figure 2 is a diagram for explaining a digital content creation device according to the first embodiment.

Referring to FIG. 2, the digital content generating apparatus 200 according to the first embodiment can more efficiently perform a recording operation on a multi-track consisting of a bit track, a video track, and an audio track.

Additionally, the digital content creation device 200 can efficiently visualize multi-tracks on the screen without blocking the images displayed on the screen as much as possible.

In addition, the digital content creation device 200 can improve user convenience by dividing the multi-track into a guide track and a shooting track and visualizing the divided guide track and the shooting track simultaneously on the screen.

To this end, the digital content creation device 200 may include a multi-track control unit 210 and a display control unit 220. That is, the multi-track control unit 210 and the display control unit 220 explained with reference to FIG. 2 may be the multi-track control unit and the display control unit of the digital content creation device according to the embodiment described with reference to FIG. 1 .

The multi-track control unit 210 according to the first embodiment may generate a UI control signal based on user input.

Additionally, the display control unit 220 may display at least two multi-tracks among a bit track, video track, and audio track in a first area of the screen based on the UI control signal, and display a record button in a second area of the screen. there is.

For example, the display control unit 220 may set a first area and a second area disposed below the first area on the screen of the user terminal.

Additionally, in multi-track, at least one of the video track and the audio track may be synchronized to the bit track. In other words, in multi-track, the remaining tracks can be synchronized based on the time information of the bit track.

According to one side, the multi-track control unit 210 divides the multi-track into a guide track for which recording work has been completed and a shooting track for which recording work is possible, displays the guide track in the first sub-area provided in the first area, and displays the shooting track. A UI control signal for displaying in the second sub-area provided in the first area can be generated.

For example, the guide track can display the progress of the selected track, the shooting track can display the recording progress, the video track can display a preview, and the audio track can display the waveform of the recorded voice.

According to one side, the multi-track control unit 210 may distinguish between the video track and the audio track, the track whose recorded data length is longer than a preset threshold time, and the bit track as a guide track.

Additionally, the multi-track control unit 210 may distinguish between the video track and the audio track, a track for which a recording completion signal according to a user input has been received, and a bit track as a guide track.

That is, the bit track can be fixedly displayed in the first area at the same time as the guide track is selected according to the user input.

Specifically, after any one of the video track and the audio track is activated and the user input to the record button displayed on the screen is detected, the multi-track control unit 210 determines that the user input to the stop button is set to a preset threshold. If it is not detected until the time expires, or if a user input for the recording completion button displayed on the screen is detected, the activated track may be classified as a guide track.

Additionally, the multi-track control unit 210 divides the first area into a first sub-area and a second sub-area disposed at the bottom of the first sub-area, displays at least one guide track in the first sub-area, and 2 A UI control signal can be generated to display at least one shooting track in the sub-area.

According to one side, the first sub-area includes a first track area that displays the first guide track among N tracks divided by guide tracks (where N is a positive integer), and an icon corresponding to the first guide track. It may include a displayed first icon area.

In addition, the second sub-area includes a second track area displaying the first shooting track among M tracks divided into shooting tracks (where M is a positive integer), and an icon corresponding to the first shooting track being displayed. It may include a second icon area.

According to one side, when a user input to the first icon area is detected, the multi-track control unit 210 sends a UI control signal to control the display of a second guide track among N tracks divided by guide tracks in the first track area. can be created.

In addition, when a user input to the second icon area is detected, the multi-track control unit 210 generates a UI control signal to control the display of the second shooting track among the M tracks divided into shooting tracks in the second track area. You can.

Specifically, in each of the first sub-area and the second sub-area, only the first guide track among the first to N-th guide tracks and the first shooting track among the first to M-th shooting tracks may be displayed on the screen, and Whenever a user input is detected for the first icon area and the second icon area provided in each of the first sub-area and the second sub-area, the track displayed on the screen can be sequentially changed.

In other words, whenever a user input to the first icon area is detected, the 2nd to Nth guide tracks are sequentially displayed in the first track area, and whenever a user input to the second icon area is detected, the second track is displayed sequentially. The second to M shooting tracks may be sequentially displayed in the area.

In addition, when a user input to the first icon area is detected while the Nth guide track is displayed in the first track area, the first guide track is displayed again in the first track area, and the Mth shooting track is displayed in the second track area. If a user input to the second icon area is detected in the displayed state, the first shooting track may be displayed again in the second track area.

For example, each of the first to Nth guide tracks and the first to Mth shooting tracks may be sequentially numbered based on the creation time.

Meanwhile, when the display control unit 220 detects a user input for the guide track, it can display a play button in the second area of the screen.

Specifically, when the guide track is activated, the display control unit 220 may display a play button instead of a record button at a position corresponding to the record button in the second area, and when the shooting track is activated, the display control unit 220 may display a play button in the second area. It can be displayed as is.

According to one side, when a user input for a record button or a user input for executing a preset application is detected, the multi-track control unit 210 stores at least one of the video track and the first audio track and the bit track in the first area. You can generate UI control signals for display.

For example, the preset application is a video sharing application that provides a recording function for video/audio, and when running the application based on the operation of the digital content creation device 200, multi-tracks are displayed in the first area and the second area is displayed. You can display a record button in the area.

Specifically, when a preset application is executed through user input, the multi-track control unit 210 can create one video track and one audio track as a shooting track.

In addition, the multi-track control unit 210 may generate one video track and one audio track as a recording track when a user input to the record button is initially detected after executing a preset application through user input. .

In addition, the multi-track control unit 210 can select one of a plurality of bits based on the user's input and create it as a guide track, and when a preset application is executed through user input, the preset bit track is guided. It can also be automatically created as a track.

According to one side, when at least one of the video track and the first audio track and the bit track are displayed in the first area and a user input to the record button is detected, the multi-track control unit 210 selects the second audio track. UI control signals for display in area 1 can be generated.

Thereafter, the multi-track control unit 210 generates and displays the third to i voice tracks (where i is a positive integer) on the first area whenever a user input to the record button is input. can be created.

That is, one bit track, one video track, and i audio tracks can be displayed in the first area.

According to one side, the multi-track control unit 210 may generate a UI control signal that controls one of the tracks to be activated when a user input according to a touch operation of one of the multi-tracks is detected once.

Additionally, when a user input according to a touch operation of one track is detected twice, the multi-track control unit 210 may generate a UI control signal to display an edit menu for one track.

In addition, when the multi-track control unit 210 detects a user input according to a touch operation of one track that lasts for a preset input time, the multi-track control unit 210 generates a UI control signal to display a track option menu for one track. You can.

Specifically, the multi-track control unit 210 activates one track when one of the multi-tracks is briefly touched once, and provides an editing function for one track when one track is briefly touched twice. When one track is touched and held, a track option function can be provided.

For example, the edit menu for one track may include at least one of an audio FX function, a track break function, a volume control function, and a track initialization function.

Additionally, the track option function may include at least one of a track deletion function and a track duplication function.

Meanwhile, when a recording operation or playback operation corresponding to a video track is performed based on a user input for a video track, the display control unit 220 displays video data according to the recording operation or playback operation on the screen, but multi-track You can control the display to overlap.

In other words, the display control unit 220 can efficiently visualize multi-tracks on the screen without blocking the image displayed on the screen as much as possible.

The digital content creation device 200 according to the first embodiment will be described in more detail with reference to FIGS. 5 to 9 below.

Figure 3 is a diagram for explaining a digital content creation device according to a second embodiment.

Referring to FIG. 3, the digital content generating apparatus 300 according to the second embodiment can more efficiently perform a recording operation on a multi-track consisting of a bit track, a video track, and an audio track.

Additionally, the digital content creation device 300 can apply video effects and audio effects to data corresponding to each multi-track in real time.

To this end, the digital content creation device 300 may include a data reception unit 310, a data management unit 320, and a multi-track control unit 330. That is, the data reception unit 310 and the data management unit 320 described with reference to FIG. 3 may be included in the recording control section of the digital content creation device according to the embodiment described with reference to FIG. 1, and the multi-track control section 330 is a It may be a multi-track control unit of a digital content creation device according to an embodiment.

The data receiver 310 according to the second embodiment can receive real-time recorded data corresponding to at least one track among the multi-tracks displayed on the screen.

For example, a multi-track may include at least two tracks displayed on the screen among a bit track, video track, and audio track.

Additionally, real-time recorded data may include any one of video data being recorded in real time through a video input means and audio data being recorded in real time through an audio input means.

The data management unit 320 according to the second embodiment may apply at least one of preset video effects and audio effects to real-time recorded data.

For example, the preset video effect includes at least one of a color filter effect and an augmented reality (AR) sticker effect, and the preset sound effect includes a revolve effect, a distortion effect, and a delay effect. ) effect, a pitch correction effect, and a pitch shift effect.

According to one side, the screen includes a first area where multi-tracks are displayed, a second area disposed at the bottom of the first area and displaying at least one virtual button of a record button, a record completion button, a play button, and a stop button, and a second area where the multi-track is displayed. It is disposed at the bottom of area 2 and may include a third area that displays information about one of the activated tracks among the multi-tracks displayed in the first area.

Specifically, when the beat track displayed in the first area is briefly touched twice, at least one icon among a beat break icon, a volume icon, and a reset icon that initializes the edits worked in the session may be displayed in the third area, Afterwards, when any one of the beat break icon and the volume icon displayed in the third area is touched, a detailed editing function for applying the effect of the touched icon may be displayed in the second area.

For example, when the beat break icon is touched, a record button is displayed in the second area, and then the beat of the desired section in the beat track can be selected through a swipe action on the track displayed in the first area and a user input to the record button. It can be deleted.

Additionally, when the volume control icon is touched, a gauge bar for controlling the volume of the bit track is displayed in the second area, and then the volume of bit data corresponding to the bit track can be controlled through user input to the gauge bar.

When the voice track displayed in the first area is briefly touched twice, the audio FX icon, audio track break icon, volume icon, and reset icon may be displayed in the third area, and then the audio FX icon and audio track break displayed in the third area may be displayed. When any one of the icon and the volume icon is touched, a detailed editing function for applying the effect of the touched icon may be displayed in the second area.

For example, when the audio FX icon is touched, the detailed functions of the audio FX, such as the revolve control icon, distortion control icon, delay control icon, and pitch control icon, are displayed in the second area, and then the user can click on the icons displayed in the second area. Related voice data can be adjusted through input.

In addition, when the audio track break icon is touched, a record button is displayed in the second area, and then voice data of the desired section in the voice track can be recorded through a swipe action on the track displayed in the first area and user input to the record button. It can be deleted.

Similarly, when the video track displayed in the first area is briefly touched twice, a color filter icon and an augmented reality sticker icon may be displayed in the third area, and then at least one of the color filter icon and the augmented reality sticker icon displayed in the third area. When the icon is touched, a detailed editing function for applying the effect of the touched icon may be displayed in the second area.

According to one side, augmented reality stickers are linked with corresponding content, and the data management unit 320 can reflect at least one augmented reality sticker among a plurality of augmented reality stickers to the video data according to user input. When the reflected augmented reality sticker is touched, content corresponding to the touched augmented reality sticker can be provided to the user.

For example, content corresponding to an augmented reality sticker may include video content.

According to one side, the data management unit 320 may apply at least one effect corresponding to preset initial effect information to real-time recorded data.

According to one side, the data management unit 320 may receive user input for effect application and apply at least one effect corresponding to the user input for effect application to real-time recorded data.

Additionally, the multi-track control unit 330 according to the second embodiment can encode real-time recorded data to which at least one effect has been applied.

Figure 4 is a diagram for explaining a digital content creation device according to a third embodiment.

Referring to FIG. 4, the digital content generating apparatus 400 according to the third embodiment can more efficiently perform a recording operation on a multi-track consisting of a bit track, a video track, and an audio track.

Additionally, the digital content creation device 400 can more efficiently edit data recorded corresponding to each multi-track.

To this end, the digital content creation device 400 may include a data reception unit 410, a data editing unit 420, and a multi-track control unit 430. That is, the data receiving unit 410 and the data editing unit 420 described with reference to FIG. 4 may be included in the recording control section of the digital content creation device according to the embodiment described with reference to FIG. 1, and the multi-track control section 430 is a It may be a multi-track control unit of a digital content creation device according to an embodiment. Additionally, the data receiving unit 410 may be a data receiving unit according to the second embodiment described with reference to FIG. 3.

Meanwhile, the digital content creation device 400 according to the third embodiment can be performed when the screen of the user terminal is switched to editing mode (i.e., mastering mode).

The data receiving unit 410 according to the third embodiment may receive recording data corresponding to at least one track among multi-tracks displayed on the screen.

For example, a multi-track may include at least two tracks displayed on the screen among a bit track, video track, and audio track.

According to one side, the digital content creation device 400 according to the third embodiment may further include a data rendering unit that performs rendering on image data among recorded data.

The data editing unit 420 according to the third embodiment may apply at least one of an image sticker effect, a text effect, a clip adjustment effect, and a fade effect to the recorded data.

For example, the image sticker effect is an effect of inserting at least one image sticker selected through user input among a plurality of preset image stickers when the recorded data is video data, and the clip adjustment effect is an effect of inserting a video clip corresponding to the video data. and an effect that adjusts the size of an audio clip corresponding to audio data, and the fade effect may be an effect that adjusts the fade-in and fade-out effects for video data and audio data.

Additionally, the text effect may include at least one of a text input effect for video data among recorded data, a color editing effect for text input to the video effect, a font editing effect, and a size editing effect.

According to one side, the data editing unit 420 may receive a user input for applying an effect and apply at least one effect corresponding to the user input for applying the effect to the recorded data.

According to one side, the screen displays information about a first area in which multi-track images recorded through a data generation device are combined and played back as one image, and an integrated track that is placed at the bottom of the first area and integrates the multi-tracks. It may include a second area and a third area disposed below the second area and displaying at least one virtual button among a record button, a record completion button, a play button, and a stop button.

According to one side, when the screen of the user terminal is switched to edit mode through user input, the third area includes at least one of a sticker effect icon, a text effect icon, a clip adjustment icon, a fade effect icon, an audio EQ icon, and a cover setting icon. An icon may be displayed, and a control bar corresponding to the integrated video file may be displayed in the first area.

For example, when the audio EQ icon displayed in the third area is touched, detailed functions for controlling the audio EQ may be displayed in the first area.

Additionally, when the cover setting icon displayed in the third area is touched, a function to apply either a pre-stored cover image or an image included in the video data as the cover image can be provided.

According to one side, the data editing unit 420 may apply at least one effect to recorded data on which rendering has been performed.

According to one side, the data editing unit 420 may calculate the delay time between the data track and the bit track of at least one of the video track and the audio track, and synchronize the data track and the bit track based on the calculated delay time.

Specifically, the digital content creation device 400 loads the saved project setting file during the multi-track recording process and visualizes each track as a single video file. In this process, the bit track and each recorded video track and audio track are There is a delay time between the two.

Accordingly, the data editing unit 420 can calculate the delay time between each track and compensate for the calculated delay time so that it does not cause a problem when playing as a single video.

Meanwhile, the multi-track control unit 430 according to the third embodiment can encode recorded data to which at least one effect has been applied.

Figure 5 is a diagram for explaining an operation example of a digital content creation device according to an embodiment.

Referring to FIG. 5, the screen of the user terminal according to the operation of the digital content creation device according to one embodiment includes a first area ( 510, and a second area 520 disposed at the bottom of the first area 510 and displaying a record button 521.

For example, the screen of the user terminal according to the operation of the digital content creation device may be a studio mode screen according to the video sharing application.

Additionally, the second area 520 may display at least one virtual button selected from the recording completion button, play button, and stop button in addition to the record button 521 according to user input.

According to one side, the screen of the user terminal is disposed at the bottom of the second area and includes a third area 530 that displays information about one of the activated tracks among the multi-tracks displayed in the first area, and an image recorded through the screen. It may include a fourth area 540 that provides a control function for at least one of data and voice data.

For example, information about any one activated track displayed in the third area 530 includes an initialization function for initializing the current operation for the activated track, type information (video, audio) of the activated track, and activated track. You can include an undo function to undo previously performed actions on a track.

In addition, the control functions displayed in the fourth area 540 include a camera switching function to change the camera direction (front/rear) of the user terminal, a function to load pre-stored lyrics, a function to monitor the video/audio, and a volume control function. , may include an on/off function of the camera flash and an on/off function of the beauty mode, and control function items can be selected according to the touch operation of the arrow icon displayed at the bottom of the fourth area 540. It can be displayed entirely or summarized on the fourth area 540.

Meanwhile, when a recording operation or playback operation corresponding to a video track is performed, the screen of the user terminal displays the image according to the recording operation or playback operation on the screen, and displays the image data by overlapping with the first to fourth areas. It may further include a video display area, and when a user input of swiping the screen up/down in the video display area is detected, the image displayed in the video display area can be zoomed in/zoomed out.

According to one side, the first area 510 includes a first sub-area 511 and 512 in which a guide track 511 for which a recording operation has been completed among multi-tracks is displayed, and a second sub-area in which a shooting track for which a recording operation is possible is displayed. It may include (513, 514).

Specifically, the first sub-areas 511 and 512 include a first track area 511 that displays the first guide track among N tracks divided by guide tracks, and a first track area 511 that displays an icon corresponding to the first guide track. 1 may include an icon area 512.

In addition, the second sub-areas 513 and 514 include a second track area 513 that displays the first shooting track among the M tracks divided into shooting tracks, and a second track area 513 that displays an icon corresponding to the first shooting track. It may include an icon area 514.

In other words, each of the first sub-areas 511 and 512 and the second sub-areas 513 and 514 includes a first guide track among the first to N-th guide tracks and a first shooting track among the first to M-th shooting tracks. Only can be displayed on the screen, and the user for the first icon area 512 and the second icon area 514 provided in each of the first sub-areas 511 and 512 and the second sub-areas 513 and 514. You can sequentially change the tracks displayed on the screen each time an input is detected.

That is, whenever a user input to the first icon area 512 is detected, the 2nd to Nth guide tracks are sequentially displayed in the first track area 511, and the user input to the second icon area 514 is displayed. Whenever this is detected, the second to M shooting tracks may be sequentially displayed in the second track area 513.

In addition, when a user input to the first icon area 512 is detected while the Nth guide track is displayed in the first track area 511, the first guide track is displayed again in the first track area 511, and the first guide track is displayed again in the first track area 511. If a user input to the second icon area 514 is detected while the M shooting track is displayed in the second track area 513, the first shooting track may be displayed again in the second track area 513.

According to one side, the screen of the user terminal is a fifth area that displays the number of the guide track displayed in the first track area 511 and information about the total number of guide tracks as 'guide track number/total number of guide tracks'. (515) and a sixth area 516 that displays information about the number of the shooting tracks displayed in the second track area 513 and the number of total shooting tracks as 'shooting track number/number of total shooting tracks'. More may be included.

According to one side, the first area 510 activates one track among the multi-tracks when one track is briefly touched once, and provides an editing function for one track when any one track is briefly touched twice. This can be done, and when any one track is touched and held, a track option function can be provided.

For example, activated tracks may be displayed in a separate color on the screen to distinguish them from non-activated tracks.

Additionally, the edit menu for one track may include at least one of an audio FX function, a track break function, a volume control function, and a track initialization function.

Additionally, the track option function may include at least one of a track deletion function and a track duplication function.

Specifically, when the voice track displayed in the first area is briefly touched twice, an audio FX icon, an audio track break icon, a volume icon, and a reset icon may be displayed in the third area, and then the audio FX icon displayed in the third area, When one of the audio track break icon and the volume icon is touched, a detailed editing function for applying the effect of the touched icon may be displayed in the second area.

FIG. 6 is a diagram illustrating an example of activating multi-track using a digital content creation device according to an embodiment.

Referring to FIG. 6, (a) of FIG. 6 shows an example of visualizing a bit track among the guide tracks arranged in the first sub-area, and (b) of FIG. 6 shows an example of visualizing a bit track among the shooting tracks arranged in the second sub-area. An example of activating a video track is shown, and Figure 6(c) shows an example of activating an audio track among the filming tracks arranged in the second sub-area.

According to (a) of FIG. 6, when a bit track arranged in the first sub-area is activated, track name information 610 is displayed on the activated track for a preset activation time (for example, 1 second), A play button 640 may be displayed in the second area.

According to (b) and (c) of FIGS. 6, when the recording track (video track and audio track) arranged in the second sub-area is activated, the name information 620 of the track is displayed on the track activated during the preset activation time. 630) is displayed, record buttons 650 and 660 may be displayed in the second area, and name information 670 and 680 of the activated track may be displayed in the third area.

Meanwhile, when tracks other than the bit track (video track and audio track) among the guide tracks arranged in the first sub-area are activated, the name information of the track is displayed on the track activated during the preset activation time, and in the second area. A play button is displayed, and name information of the activated track may be displayed in the third area.

FIG. 7 is a diagram illustrating an example of generating a bit track using a digital content generating device according to an embodiment.

Figure 7(a) shows an example of displaying a guidance message for selecting a bit track, Figure 7(b) shows an example of selecting one of a plurality of bits according to a user input, Figure 7(c) shows an example of applying the selected bit to the bit track.

According to (a) to (c) of FIG. 7, the screen of the user terminal according to the operation of the digital content creation device displays a bit track as indicated by reference numeral 710 if the beat track is not set in advance when entering the studio mode screen for the first time. A message can be displayed for selection.

For example, in the studio mode screen, the indicator is fixed at the center in the first area, and then the indicator changes when the user swipes the track (or indicator) left or right, or when the track moves as the track is played or recorded. , As the track moves, the playback time can be displayed in minutes/seconds (0:00) at the top.

Next, when the user selects the message indicated by reference numeral 710, a plurality of bit lists can be displayed on the screen as shown in (b) of FIG. 7.

Specifically, the beat list may include an image display area 720 corresponding to each beat, along with beat maker information, beat title, play time, and BPM information for each beat, and an image display area 720 ), the corresponding bit data can be played or stopped.

Additionally, when the user swipes to the left or selects one bit 730 among a plurality of bits included in the bit list, a bit use button 740 may be displayed.

According to one side, when the user activates the shooting track while a message for bit selection is displayed, as shown by reference numeral 710, and the record button is displayed in the second area, when the user selects the record button, a bit selection error is displayed. The bit list can also be displayed on the screen.

Thereafter, when the beat use button 740 is selected, the sound waveform of the beat selected as the guide track is displayed on the first sub-area, and at the same time, information about the selected beat track may be displayed as indicated by reference numeral 750.

Meanwhile, if the user selects reference numeral 750, a menu for changing the bit may be displayed on the screen. At this time, if the user selects the bit change, all work performed by the user through the selected bit track may be deleted.

FIG. 8 is a diagram for explaining an example of generating a video track using a digital content creation device according to an embodiment.

Referring to (a) to (c) of FIG. 8, the screen of the user terminal according to the operation of the digital content creation device according to one embodiment is displayed when the user activates the video track among the shooting tracks displayed in the second sub-area. When the record button 810 displayed in the second area is touched, a recording operation for the activated video track can be performed.

For example, if a user swipes up/down the screen while pressing and holding the record button 810 during a recording operation for an activated video track, a zoom-in/zoom-out effect may be applied to the video during recording.

Additionally, if the user swipes the screen area where the video is displayed up/down during the recording operation for the activated video track, a zoom-in/zoom-out effect may be applied to the video during shooting.

Next, when a recording (recording) operation is performed for the activated video track, a stop button 820 may be displayed in the second area, and when the user touches the recording stop button, the recording operation for the activated video track is performed. It may be stopped.

Next, when the recording operation for the activated video track is stopped, the recording completion button 830 may be displayed along with the recording button in the second area. When the user touches the recording completion button 830, all tracks are recorded. When this is finally finished, the user's terminal screen can be moved to editing mode (i.e., mastering mode).

According to one side, after the recording operation for the activated video track is stopped, if the record button is touched, the recording stop button is touched and recording can be continued from the point where recording was stopped.

FIG. 9 is a diagram for explaining an example of generating a voice track using a digital content creation device according to an embodiment.

Referring to (a) to (c) of FIG. 9, the screen of the user terminal according to the operation of the digital content creation device according to one embodiment is displayed when the user activates the voice track among the shooting tracks displayed in the second sub-area. When the record button 910 displayed in the second area is touched, a recording operation for the activated voice track can be performed.

According to one side, the recording operation for the activated voice track may be performed from a selected time by swiping the indicator or the activated voice track left/right.

Next, when a recording operation for the activated voice track is performed, a stop button 920 may be displayed in the second area, and when the user touches the recording stop button, the recording operation for the activated voice track may be stopped. there is.

Next, when the recording operation for the activated voice track is stopped, the recording completion button 930 may be displayed along with the recording button in the second area, and when the user touches the recording completion button 930, all tracks are recorded. When this is finally finished, the user's terminal screen can be moved to editing mode (i.e., mastering mode).

In addition, after the recording operation for the activated voice track is stopped, if the record button is touched, the recording stop button is touched and recording can be continued from the point where recording was stopped.

Figure 10 is a diagram for explaining the operating method of the digital content creation device according to the second embodiment.

In other words, FIG. 10 is a diagram for explaining a method of generating digital content using the digital content generating device according to the second embodiment described with reference to FIGS. 1 to 9. Among the contents described with reference to FIG. 10 below, FIG. 1 to FIG. Descriptions that overlap with those described with reference to FIG. 9 will be omitted.

Referring to FIG. 10, in step 1010, the digital content creation method may receive real-time recorded data corresponding to at least one track among multi-tracks displayed on the screen from a data receiving unit.

Next, in step 1020, the digital content creation method may apply at least one of the video effects and audio effects preset in the data management unit to the real-time recorded data.

For example, the preset video effect includes at least one of a color filter effect and an augmented reality sticker effect, and the preset sound effect includes a revolve effect, a distortion effect, a delay effect, It may include at least one of a pitch correction effect and a pitch shift effect.

Next, in step 1030, the digital content generation method may encode real-time recorded data to which at least one effect is applied in a multi-track control unit into a video file for the video track and an audio file for the audio track, depending on the selected track.

Figure 11 is a diagram for explaining the operating method of the digital content creation device according to the third embodiment.

In other words, FIG. 11 is a diagram for explaining a method of generating digital content using the digital content generating device according to the third embodiment described with reference to FIGS. 1 to 9. Among the contents described with reference to FIG. 11 below, FIG. 1 to FIG. Descriptions that overlap with those described with reference to FIG. 9 will be omitted.

Referring to FIG. 11, in step 1110, the digital content creation method may receive recorded data corresponding to at least one track among multi-tracks displayed on the screen from a data receiving unit.

For example, a multi-track may include at least two tracks displayed on the screen among a bit track, video track, and audio track.

Next, in step 1120, the digital content creation method may apply at least one of a sticker effect, a text effect, a clip adjustment effect, and a fade effect to the recorded data in a data editing unit.

According to one side, in step 1120, the method of generating digital content may further include a step of performing rendering on image data among recorded data in a data rendering unit, and thereafter, the data editing unit may perform rendering on at least the rendered image data. One effect can be applied.

According to one side, in step 1120, the digital content generation method calculates the delay time between the data track and the bit track of at least one of the video track and the audio track in the data editing unit, and synchronizes the data track and the bit track based on the calculated delay time. can do.

Next, in step 1130, the digital content generation method can encode all data recorded in the multi-track in the multi-track control unit into one video file or, if no video is recorded, into an audio file.

Ultimately, using the present invention, recording operations for multi-tracks consisting of bit tracks, video tracks, and audio tracks can be performed more efficiently.

Additionally, using the present invention, multi-tracks can be efficiently visualized on the screen without blocking the image displayed on the screen as much as possible.

Additionally, using the present invention, it is possible to improve user convenience by dividing multi-tracks into guide tracks and shooting tracks and visualizing the divided guide tracks and shooting tracks on the screen simultaneously.

Additionally, using the present invention, video effects and audio effects can be applied in real time to data corresponding to each multi-track.

Additionally, using the present invention, data recorded corresponding to each multi-track can be edited more efficiently.

Although the embodiments have been described with limited drawings as described above, various modifications and variations can be made by those skilled in the art from the above description. For example, the described techniques are performed in a different order than the described method, and/or components of the described system, structure, device, circuit, etc. are combined or combined in a different form than the described method, or other components are used. Alternatively, appropriate results may be achieved even if substituted or substituted by an equivalent.

Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the claims described below.

200: Digital content creation device 210: Multi-track control unit
220: display control unit

Claims (14)

A multi-track control unit that generates UI control signals based on user input and
A display control unit that displays at least two multi-tracks among a bit track, video track, and audio track in a first area of the screen based on the UI control signal, and displays a record button in a second area of the screen.
Including,
The multi-track control unit,
When the user input according to a touch operation of any one of the multi-tracks is detected once, the UI control signal is generated to control the one track to be activated,
When the user input according to a touch operation of one of the tracks is detected twice, the UI control signal is generated to display an edit menu for the one track,
When the user input according to the touch operation of the one track lasting for a preset input time is detected, the UI control signal for displaying the track option menu for the one track is generated.
Digital content creation device. According to paragraph 1,
The multi-track control unit,
The multi-track is divided into a guide track for which a recording operation has been completed and a shooting track for which a recording operation is possible, the guide track is displayed in a first sub-area provided in the first area, and the shooting track is provided in the first area. Generating UI control signals for displaying in the second sub-area
Digital content creation device. According to paragraph 2,
The multi-track control unit,
Among the video track and the audio track, the track whose length of recorded data is longer than a preset threshold time and the bit track are divided into the guide track.
Digital content creation device. According to paragraph 2,
The multi-track control unit,
Among the video track and the audio track, the track for which a recording completion signal according to the user input is received and the bit track are divided into the guide track.
Digital content creation device. According to paragraph 3,
The first sub-region is,
A first track area displaying a first guide track among N tracks (where N is a positive integer) divided by the guide track, and a first icon area displaying an icon corresponding to the first guide track. Contains,
The second sub-region is,
A second track area displaying a first capturing track among the M tracks (where M is a positive integer) divided into the capturing tracks, and a second icon area displaying an icon corresponding to the first capturing track. containing
Digital content creation device. According to clause 5,
The multi-track control unit,
When the user input to the first icon area is detected, the UI control signal is generated to control display of a second guide track among N tracks divided by the guide track in the first track area,
When the user input to the second icon area is detected, the UI control signal is generated to control display of a second shooting track among the M tracks divided by the shooting track in the second track area.
Digital content creation device. According to paragraph 2,
The display control unit,
When the user input for the guide track is detected, a play button is displayed in a second area of the screen.
Digital content creation device. According to paragraph 1,
The multi-track control unit,
When the user input for the record button or the user input for execution of the preset application is detected, at least one of the video track and the first audio track and the bit track are displayed in the first area. Generating the UI control signal
Digital content creation device. According to clause 8,
The multi-track control unit,
At least one of the video track and the first audio track and the bit track are displayed in the first area, and when the user input to the record button is detected, displaying the second audio track in the first area. Generating the UI control signal for
Digital content creation device. According to paragraph 1,
The multi-track is
At least one of the video track and the audio track is synchronized to the bit track.
Digital content creation device. delete According to paragraph 1,
The edit menu for any one of the above tracks is,
Containing at least one of the following functions: an audio FX function, a track break function, a volume control function, and a track initialization function.
Digital content creation device. According to paragraph 1,
The track options menu for any one of the above tracks is,
Containing at least one of the track deletion function and the track duplication function
Digital content creation device. According to paragraph 1,
The display control unit,
When a recording operation or a playback operation corresponding to the video track is performed based on the user input for the video track, video data according to the recording operation or the playback operation is displayed on the screen, wherein the multi-track overlaps. control to display
Digital content creation device.