Project creation

Available in Classic and VPC

This section explains how to synthesize voice for the content you uploaded by using the dubbing editing interface of a created project.

Dubbing editing interface

Project editing in CLOVA Dubbing is performed in the dubbing editing interface. The dubbing editing interface consists of the following components:

File upload component

The file upload component of the dubbing editing interface consists of the following:

Add dubbing and sound effects

The dubbing and sound effect components in the dubbing editing interface is structured as follows.

Timeline Component

The timeline component in the dubbing editing interface is structured as follows.

Dubbing list component

The dubbing list component in the dubbing editing interface is structured as follows.

Project editing

Project editing refers to placing voice and sound effects at the appropriate positions on the uploaded video or PDF file and synthesizing them. Project editing is performed in the dubbing editing interface. To edit a project in the dubbing editing interface:

1. From the NAVER Cloud Platform console, navigate to Menu > Services > AI Services > CLOVA Dubbing > Project Group > [Go to] for the project group whose builder you want to open.
2. In the launched builder, double-click the project you want to edit or click .
3. When the dubbing editing interface appears, follow these steps in order:
   • 1. Upload a file
   • 2. Add a voice
   • 3. Edit the timeline
   • 4. Save the project

1. Upload a file

Upload the video or PDF file to which you want to add voice and sound effects. Check the file specifications before uploading.

To upload a file:

1. Click [Upload file] button.
2. When the file selection popup appears, upload your file and click [Close] button.
   • File upload tab: Select this option to upload a file stored on your local PC. Drag and drop a file, or click [Upload video] or [Upload PDF/Image] button to add a file.
   • Select from Object Storage tab: Select this option to upload a file stored in Object Storage. Select a file from the bucket and click [Start request] button.

2. Add a voice

After uploading a file, add a voice or sound effect to synthesize. To add items:

1. To add a voice, click Add dubbing, then select the voice you want to use.
2. Enter the dubbing text.
   • Special characters such as ^^, ※, ★ or incomplete syllables such as ㅇㅇ, ㄴㄴ cannot be synthesized.
   • Refer to the Guidelines for natural dubbing input.
   • Refer to Language-specific dubbing input guidelines.
3. Click [Add dubbing] button.
4. To add a sound effect, click Add sound effect button, then click the [ + ] button icon for the sound effect you want to use.

Guidelines for natural dubbing input

To generate more natural-sounding synthesized speech:

• Enter text exactly as you want it to be read: Numbers, English words, symbols, and abbreviations can be pronounced in many ways depending on context. Whenever possible, write them out fully or spell them in Korean.

  Example	Input
  	1/3
  	200G

• Use correct spacing: Proper spacing results in more fluent and natural pronunciation.
• Use punctuation to control pacing: Use commas to add slower pauses, and periods/question marks/exclamation marks to end sentences naturally. To have the voice read words or characters one by one, use ',' or '/.' A comma applies a relatively longer pause, while a slash applies a shorter one.

  Punctuation	Role	Example
  	Period ( . ) Question mark ( ? ) Exclamation mark ( ! )	Indicates a natural end of a sentence
  	Comma ( , )	Adds a pause to create a more relaxed tone, or makes the system read words/characters with a relatively long pause
  	Slash ( / )	Makes the system read words/characters with a relatively short pause

Language-specific dubbing input guidelines

CLOVA Dubbing is optimized to pronounce text in the language assigned to each voice. For example, Ara / Minsang are optimized for Korean, Clara / Matt for English, and Tomoko / Kenji for Japanese. If the language of the input text differs from the language supported by the selected voice, dubbing may not be generated correctly. Make sure the input language and the voice language match.

3. Edit the timeline

To place and test dubbing and sound effects at specific timestamps in the uploaded file:

1. In the timeline and dubbing list editing components, drag the uploaded file, voices, and sound effects to the desired timestamps.
   • Minimum playback time per file: 1 second
   • Dubbing clips cannot overlap with other dubbing clips
   • Sound effects cannot overlap with other sound effects
   • Dubbing and sound effects cannot overlap with each other
   • You cannot add dubbing or sound effects outside the total playback duration
2. Repeat the steps above as many times as needed.
3. Click Play to review the created project.

4. Save the project

When you finish editing the project, click [Save project] button.