Extend Audio AI
Carry Any Track Past Its End, in Its Own Sound
Continue a cue, ambience or effect past where it stops, in the sound it already has.
- Victory stinger · 4 bars
- In-game loop
- Game-over sting
- Combat loop · 16 bars
- Menu loop
- Omen 8 s · Assault 20 s · Climax 24 s · Tail 8 s
Extend Audio
The cue is right and it is too short. The trailer cut grew, the menu loop needs more time before it repeats, the ambience runs out before the level does. Regenerating at a longer length means losing the version the team approved, and looping it by hand leaves a seam a player will hear.
Extend Audio on Layer carries a clip past its end. Upload the track, choose how much to add, optionally describe what should happen next, and Layer continues it in the sound it already has.
01
Key capabilities
Continue in the Clip's Own Sound
The extension is generated from the audio you upload, so instruments, tempo, texture and mix carry through into the new section.
Choose How Much to Add
Set the number of seconds to add for each run, and extend the result again when the scene needs more.
Steer What Comes Next
Describe the direction, a build, a resolve, a quieter passage, or leave the prompt light and let the track carry on as it was going.
Music and Sound Effects
Choose a model built for music or one built for sound effects and ambience, so a score, a background bed and an effect tail can all be extended.
Part of the Audio Toolkit
Extend sits beside Audio Inpaint, music and sound effect generation, so a cue can be lengthened, fixed and finished in one place.
02
How it works
Upload the clip
Bring in the cue, ambience or effect you want to lengthen, generated on Layer or recorded elsewhere.
Set the length and direction
Choose how many seconds to add and describe what should come next, if anything.
Review and export
Listen through the join, extend again if needed, and export the longer clip or place it on the timeline.
The industry's best audio models. One platform.
Most used audio models
- ElevenLabs Sound EffectsElevenLabs
- ElevenLabs TTS V4 TurboElevenLabs
- ElevenLabs TTS V4ElevenLabs
- Gemini 3.8 Flash TTSGoogle
- QQwen 3 TTSQwen 3 Tts
- Gemini 3.8 Flash Lite TTSGoogle
- Gemini 3.1 Flash TTSGoogle
- ElevenLabs TTS V3ElevenLabs
- xAI TTS V1xAI
- ElevenLabs Multilingual V2ElevenLabs
- Mirelo SFX 2.0 Video to AudioMirelo
- Mirelo SFX 2.0Mirelo
03
Built for game production
Trailers and UA Spots
When the edit grows, extend the approved score to fit rather than commissioning a new cut of the music.
Menus and Loops
Give a menu or hub theme more length before it repeats, so players hear the loop less often.
Ambience Beds
Lengthen a room tone or environment bed to cover a whole level or scene without an audible splice.
Effect Tails
Let an explosion, spell or impact ring out longer when the moment on screen needs more weight.
04
Related features
Questions about Extend Audio
What does Extend Audio do?+
It continues a clip past its end. Layer listens to the audio you upload and generates more of it, in the same sound, so a short cue, ambience or effect becomes a longer one without a hard edit.
How do I control how much gets added?+
Set the number of seconds to add before you run it. Each model has its own maximum, shown when you choose it, and you can extend the result again to go further.
Can I steer what comes next?+
Yes. Describe what should happen in the new section, building to a finish, staying calm, adding an instrument, or leave it to carry on as it was going.
Does it work on music and sound effects?+
Yes. Extend Audio runs on models built for music and on models built for sound effects and ambience, so a score, a room tone and an effect tail can all be lengthened with the same tool.
How is this different from generating a longer clip?+
A new generation starts from nothing. Extending starts from the clip you already approved, so the continuation keeps its instruments, tempo and character.
Try Extend Audio today
Make the cue you love long enough for the scene. Extend your first track free on Layer.