Scene Recognition - identifies objects, actions, and environments.
PROMPT GUIDE
PrismAudio AI Video To Audio Generator Prompt Guide
Write Better Prompts for PrismAudio
Learn how to describe scenes, sound effects, and background mood more clearly so PrismAudio can generate better synchronized audio.
PrismAudio already analyzes the video itself, so your prompt does not need to do everything. Your goal is to guide the model with clearer scene cues, stronger sound direction, and better mood control.
HOW IT WORKS
PrismAudio Reads the Video First
PrismAudio is designed to generate audio by understanding what happens on screen. Its public workflow highlights scene recognition, sound matching, timing lock, and spatial rendering. Your prompt works best as guidance, not as a replacement for the visuals in the clip.
Sound Matching - selects matching sound events for what it sees.
Timing Lock - aligns sounds to the right moments on screen.
Spatial Rendering - places sound in a stereo field based on screen position.
PROMPT FORMULA
A Simple Prompt Structure That Works Better
Instead of writing long instructions, use a short structure that tells PrismAudio what the scene feels like, what should be heard, and how strong the result should be.
Sound Effects Prompt Formula
[scene type] + [main action] + [sound texture] + [intensity]
BGM Prompt Formula
[mood] + [pace] + [style direction]
Examples
- street chase + footsteps and traffic + sharp impacts + high intensity
- product demo + soft clicks and swipes + clean texture + subtle intensity
- calm documentary + slow pace + ambient and peaceful
- fantasy scene + magical motion + shimmering detail + immersive
SOUND EFFECTS PROMPT
How to Write a Better Sound Effects Prompt
Use the sound effects prompt to describe what should be heard in the scene. Focus on visible action, material texture, movement, and intensity. Keep it direct and concrete.
Best Practices
- Describe what is happening on screen.
- Mention contact, motion, or environment.
- Use words like soft, sharp, heavy, subtle, crisp, distant, or immersive.
- Keep it short and specific.
Good Examples
- heavy impacts, fast movement, tense action sound design
- soft keyboard clicks, quiet office ambience, subtle movement
- water splashes, light ripples, smooth glide sounds
- paper tearing, scraping, pressure, dry texture
BGM PROMPT
Use the BGM Prompt to Shape the Mood
The BGM prompt is best used for atmosphere, pacing, and emotional tone. It should guide the background feel of the video, not compete with the main sound effects.
What to Emphasize
- mood
- pacing
- cinematic weight
- calm vs tension
- futuristic vs natural
- subtle vs dramatic
Good Examples
- minimal futuristic background, clean and premium
- moody cinematic atmosphere, slow tension
- peaceful ambient background, soft and natural
- dramatic action mood, punchy and urgent
ASMR MODE
When to Use ASMR Mode
ASMR mode is best for videos where texture and detail matter more than volume or musical energy. If the clip includes close-up movement, friction, cutting, brushing, pouring, or tactile interaction, this mode can make the generated audio feel more immersive.
Best Use Cases
- close-up texture shots
- product material demos
- slicing or tapping clips
- soft contact scenes
- immersive short-form videos
Prompt Direction Examples
- crisp texture detail, soft friction, close-range realism
- gentle tapping, clean contact, subtle immersive sound
- soft liquid movement, close-up pouring, delicate texture
GOOD VS BAD
What Makes a Prompt Work Better
Better Prompts
- Cinematic, dramatic - heavy impacts and tense atmosphere
- Nature documentary style - peaceful, ambient, no music
- Action sequence - fast cuts, punchy sound design
- Quiet office scene - subtle, realistic background sounds
Weak Prompts
- Make it sound cool
- Add a piano melody
Better prompts are concrete and scene-aware. Weak prompts are too vague, too abstract, or ask PrismAudio to do something outside its intended focus.
SCENE EXAMPLES
Prompt Examples You Can Start With
Copy these as starter templates, then adapt details based on your own clip.
Test 1: People Giggling
sound_effect_prompt
A clear, authentic recording of a baby laughing intermittently. The core focus remains on the baby's laughter, capturing its natural rhythm and emotional variation — from joyful giggles to moments of startled reaction.
bgm_prompt
The baby’s sound should remain centered, preserving intimacy and focus on its laughter and reactions.
Original Video
PrismAudio Output
Test 2: Playing Drum Kit
sound_effect_prompt
Rhythmic drum kit sequence with consistent beats, featuring multiple drums played simultaneously. Prominent bass and snare tones are essential.
bgm_prompt
The drum kit should have a natural, balanced stereo spread, allowing individual drum elements (bass, snare, hi-hats, cymbals) to occupy distinct but cohesive positions within the sound field, creating an immersive, live feel.
Original Video
PrismAudio Output
Test 3: Machining, Tapping
sound_effect_prompt
The sequence begins with a mechanical frame rotating and being secured, followed by the installation of a metal sheet and a series of light, crisp metallic taps. All sounds should remain centered.
bgm_prompt
All mechanical and metallic sounds must be clear, crisp, and well-defined. No additional background noise or music is included.
Original Video
PrismAudio Output
QUICK RULES
4 Simple Rules for Better PrismAudio Prompts
1Keep it short.
Long prompts are usually less clear than short, focused directions.
2Describe what can be seen.
PrismAudio reads the video, so prompts should support the visuals instead of replacing them.
3Use mood words carefully.
Words like calm, tense, immersive, subtle, or dramatic are useful when paired with scene context.
4Start simple, then refine.
You can test once with no prompt, then improve from there with focused edits.
FAQ
Prompt Guide FAQ
Do I need to write a prompt every time?
No. PrismAudio says the style prompt is optional, and it can work well without one. Use prompts when you want more control over mood, pacing, or sound style.
Should I write long prompts?
Usually no. Short, specific prompts are easier for the model to follow than long, abstract instructions.
What belongs in the sound effects prompt?
Use it for action, texture, contact, movement, and environmental detail.
What belongs in the BGM prompt?
Use it for overall mood, pace, and background feel.
Can PrismAudio generate music compositions?
PrismAudio is focused on sound effects, not full music composition, so prompts should guide atmosphere rather than ask for fully composed songs.
READY TO TRY?
Test Your Prompt in PrismAudio
Upload a short clip, try one of the prompt formulas above, and hear how PrismAudio turns visible action into synchronized stereo sound.