Seed Audio 1.5 AI Audio Generator

Seed Audio 1.5 is expected to bring character dialogue, emotional performance, ambience, sound effects, and music together in one workflow. Generate complete audio from a natural-language prompt, reference audio, video, or image.

Describe the dialogue, characters, emotions, sound effects, ambience, music, and output language...

Seed Audio 1.5: Create complete audio with four generation modes

Seed Audio 1.5 is an upcoming end-to-end AI audio generator for more than a single voiceover. Start with a natural-language prompt, reference audio, reference video, or an image, then generate a connected result with character dialogue, emotional expression, ambience, sound effects, and music.

T2A text to audio mode generating dialogue, music, sound effects, and ambience

Turn text into a complete audio scene

Use Text-to-Audio mode when the creative idea begins as words. Describe the characters, paste or summarize their dialogue, set the emotion and pace, and add directions for room tone, action sounds, transitions, or music. Seed Audio 1.5 interprets the brief as one composition, producing dialogue, music, sound effects, and environmental audio together instead of requiring a separate tool for every layer.

TA2A reference audio controls for voice, emotion, style, speed, and vocalization

Control generation with reference audio

Use Text-and-Audio-to-Audio mode when a reference voice or sonic performance should guide the output. Add as many as six reference audio files, then refine the emotion, style, speaking speed, voice character, and non-speech vocalizations through natural-language direction. This reference-audio workflow helps a production keep a recognizable timbre while adapting the performance to a new line, scene, or emotional beat.

TV2A video understanding mode generating voiceover, sound effects, ambience, and music

Generate audio that understands the video

Use Text-and-Video-to-Audio mode to provide a reference video together with a prompt. Seed Audio 1.5 analyzes the visual content and uses your direction to create voiceover, music, sound effects, and ambience that fit the action and atmosphere. It is useful when cuts, character behavior, settings, or on-screen events should influence the audio rather than relying on a text description alone.

TAV2A mode using video, text prompt, and optional reference audio

Combine video, text, and a voice reference

Use Text-Audio-and-Video-to-Audio mode for the most reference-rich workflow. Supply a video, write the creative prompt, and optionally add reference audio to guide the voice identity. The model generates a soundtrack designed around the picture while preserving the requested character and performance direction. This mode connects visual timing, voice reference, emotional delivery, effects, ambience, and music in one generation path.

Seed Audio 1.5 online: How the planned workflow may work

Step 1: Choose a mode and add your references

Open the Web audio generator and select the modes according to the source material available. Begin with a prompt alone, add up to six reference audio files for voice or style control, upload a reference video for visual understanding, or combine video with an optional audio reference. You can also use an image to communicate visual context for the scene.

Step 2: Direct the scene, timing, and performance

Write the characters, dialogue, language, emotional arc, speaking speed, ambience, sound effects, and musical direction in plain language. Add timestamp instructions when a line, cue, or transition must land at a particular moment. Generate as much as six minutes in one segment, then listen to the whole scene. If a performance feels flat or a mix feels crowded, revise the specific instruction rather than rewriting the entire brief.

Step 3: Review stems, dub video, and finish online

Review the generated result as a complete mix or work with separate tracks when the project needs independent control of dialogue, music, ambience, and effects. Use the dedicated video-dubbing capability for localization, then bring the audio into CapCut Web to align captions, shots, and transitions. Save useful voices as reusable assets so later scenes can keep a consistent identity before you export the finished production.

Choosing a Seed Audio 2.0 generation mode and adding multimedia references online

Reviewing an AI-generated audio scene with dialogue and sound layers

Reviewing separate audio tracks and finishing Seed Audio 2.0 output in CapCut Web

Create audio with Seed Audio 1.5 for stories, brands, games, and global video

Use one prompt and the references appropriate for the project to create voices, performance, atmosphere, action, and music as a connected scene, then refine the result for its final channel.

Multi-character Seed Audio 2.0 scene for an AI short drama or motion comic

AI short dramas and motion comics

Generate multi-character dialogue, emotional acting, sound effects, environmental audio, and music within one creative direction. Reuse saved voice assets across shots to keep characters recognizable, while TV2A or TAV2A can use the video itself to guide audio for AI short dramas, motion comics, and serialized stories.

Podcast and audiobook scene generated from a Seed Audio prompt

Audio dramas, audiobooks, and podcasts

Create multi-character conversation, narration, non-speech reactions, effects, and music from a single prompt. The six-minute generation limit supports longer passages and recurring formats, while reusable voices help maintain a recognizable cast across episodes of an audio drama, audiobook, or podcast series.

Branded AI audio scene for a product campaign

Advertising and branded audio

Describe the brand voice, audience, emotional rhythm, atmosphere, product moment, transition, and closing cue in natural language. Generate a connected piece of brand audio quickly, then use stems and timestamp control to adapt the dialogue, music, and effects for social ads, product films, campaign videos, or branded podcast segments.

Multilingual AI audio used for video dubbing and localization

Video dubbing and global rollout

Use the dedicated video-dubbing capability to create localized performances for global distribution and short-drama expansion. Preserve the character role and emotional intent, synchronize speech with the picture, and adapt the script for the target market. Have a fluent reviewer check pronunciation, pacing, meaning, and cultural context before publishing.

Game character dialogue and environmental audio generated with AI

Game dialogue and immersive sound

Prototype character dialogue, quest narration, combat reactions, non-speech vocalizations, interface cues, environmental ambience, and action effects from the same brief. Build reusable voice assets for recurring characters, explore the sonic direction of a level or trailer, and refine separate tracks against the game context before production use.

Frequently asked questions

What is Seed Audio 1.5?

Seed Audio 1.5 is an end-to-end AI audio generation model. It can use a natural-language prompt, reference audio, reference video, or an image to generate character dialogue, emotional expression, ambience, sound effects, and music. The model creates these elements within one scene-level direction for short dramas, podcasts, branded content, games, video localization, and other story-led formats.

What are T2A, TA2A, TV2A, and TAV2A?

T2A turns a text prompt into complete audio. TA2A adds reference audio to guide timbre, emotion, style, speed, or non-speech vocalizations. TV2A combines video with a prompt so the model can understand the visuals and generate matching voiceover and music. TAV2A uses video, text, and optional reference audio, connecting visual understanding with a chosen voice reference.

What has Seed Audio 1.5 added compared with Seed Audio 1.0?

Seed Audio 1.5 increases reference audio files from three to six and extends a single generation from two minutes to six minutes. It also adds TV2A and TAV2A video-understanding workflows, precise timestamp control, separate-track generation and export, and dedicated video dubbing. These upgrades support longer scenes, visual storytelling, localization, and more detailed editing control.

Can Seed Audio 1.5 create multiple characters, effects, ambience, and music together?

Yes. One prompt can define multiple speakers, dialogue, emotion, environment, sound effects, and music. Label characters clearly and explain the purpose of major sounds, such as quiet rain beneath a reflective monologue or a rising cue before a product reveal. Review the result to confirm that speakers remain distinct, dialogue stays intelligible, and the mix supports the story.

Which languages does Seed Audio 1.5 support?

Seed Audio 1.5 supports 30 languages across three tiers. Includes Chinese, English, Japanese, Korean, Mexican Spanish, German, French, Brazilian Portuguese, Thai, Indonesian, Vietnamese, Malay, Arabic, Spain Spanish, and Portugal Portuguese, etc. For localized publishing, a fluent reviewer should still check pronunciation, meaning, emotion, and cultural phrasing.

Can I use Seed Audio 1.5 in a web browser?

Yes. Choose a generation mode, add a prompt and references, review the audio, and continue into a browser-based CapCut project. The Web is the main entry point rather than a PC-only installation. Use an up-to-date browser and review the controls in your current experience because access can depend on account, region, and rollout.

Can I reuse the same generated voice across scenes?

Yes. A generated voice can be fixed as a reusable voice asset and saved to a personal voice library. Use that asset across shots, episodes, campaigns, or game content to help a character retain a consistent identity. You can still change emotion, pace, style, and delivery for the needs of each scene. When reference material involves a real person, make sure you have the appropriate rights and permission before creating or distributing the result.

How do I write a better Seed Audio 1.5 prompt?

Start with the scene, characters, dialogue or message, emotional direction, language, ambience, important sound effects, and musical mood. Write instructions in the order a listener experiences them and add timestamps for moments that need precise placement. Mention what the reference audio or video should control, avoid conflicting directions, and generate a focused first version. Listen to the complete result, then revise only the detail that needs stronger direction. Clear narrative intent usually works better than a list of unrelated sounds.

Create a complete sound scene with Seed Audio 1.5

Start with text, audio, video, or image references, then generate dialogue, emotion, ambience, effects, and music for a complete scene and finish the production in CapCut Web.