| name | higgsfield-audio |
| description | Use when the user asks about audio in Higgsfield videos, needs to add dialogue or lip-sync, wants sound effects or ambient sound in generated video, asks about music or BGM in output, or is using any audio-capable model (Kling 3.0, Seedance 1.5 Pro, Seedance 2.0, Veo 3/3.1, Grok Imagine Video). Also use when the user's prompt would benefit from audio direction but they haven't mentioned it.
|
| user-invocable | true |
| metadata | {"tags":["higgsfield","audio","dialogue","lip-sync","SFX","ambient","sound","BGM","music","voice"],"version":"3.2.1","updated":"2026-06-27T00:00:00.000Z","parent":"higgsfield"} |
Higgsfield Audio Prompting Guide
QUICK FACTS
Routing aids — read the linked sections for the full rules.
- Native-joint audio models: Kling 3.0, Seedance 2.0 / 1.5 Pro, Veo 3/3.1, Grok — all others add audio in post →
- Four layers to consider per prompt: Dialogue / SFX / Ambient / BGM →
- Lip-sync is the most failure-prone feature: 3–8s clips, MCU framing, one speaking face, locked camera, no head-motion tokens →
- Seedance 2.0
@Audio1 is a conditioning INPUT — beat sync, the [AUDIO: Xs] script block, and the first-15s extraction trap →
- Cinema Studio 3.0 native joint audio (SCELA): describe audio as a separate section; specific foley beats generic moods →
- Standalone Audio tab = TTS/voice tools (Eleven v3, MiniMax Speech, Seed Speech, VibeVoice), distinct from in-video joint audio →
Which Models Support Audio?
| Model | Audio type | Dialogue | SFX | Ambient | BGM | Lip-sync |
|---|
| Kling 3.0 / Omni | Native joint | ✅ | ✅ | ✅ | ✅ | ✅ Multi-language |
| Seedance 2.0 | Native joint | ✅ | ✅ | ✅ | ✅ | ✅ Multi-language |
| Seedance 1.5 Pro | Native joint | ✅ | ✅ | ✅ | ✅ | ✅ Best lip-sync |
| Veo 3 / 3.1 | Native joint | ✅ | ✅ | ✅ | ✅ | ✅ English best |
| Grok Imagine Video | Native joint | ✅ | ✅ | ✅ | ✅ | ✅ |
| All other models | ❌ | — | — | — | — | — |
"Native joint" means audio and video are generated simultaneously in one pass —
not layered on after. This produces natural synchronization without post-production.
Models without native audio: add audio in post with Lipsync Studio or external tools.
The Four Audio Layers
Every audio-capable prompt should consider four layers. You don't need all four
in every prompt, but knowing which to include gives the model clear direction.
1. Dialogue — What characters say
Put dialogue in quotes. Be explicit about who speaks, their tone, and language.
She says: "We need to leave. Now."
He whispers: "Not yet."
Best practices:
- Keep dialogue short — 1-2 sentences per character per shot
- Specify emotional tone: "says urgently", "whispers", "shouts across the room"
- For non-English: specify language and dialect →
She speaks in Cantonese: "走啦"
- For Seedance 1.5 Pro: supports English, Chinese (incl. Sichuanese, Cantonese,
Taiwanese Mandarin, Shanghainese), Japanese, Korean, Spanish, Indonesian
2. SFX — Specific sound events tied to action
Describe SFX at the point they happen. Tie them to visible actions.
The glass shatters on the floor — sharp crack, then settling tinkle.
Footsteps on wet concrete — splashing, rhythmic.
A door slams shut — heavy metal, echoing.
Best practices:
- One SFX description per action beat
- Use onomatopoeia sparingly — descriptive phrases work better than "BANG" or "CRASH"
- Tie timing to action: "as she sets the cup down" not "cup sound at 4 seconds"
3. Ambient — Background soundscape
Set the acoustic environment. This is the continuous sound bed.
Ambient: quiet café murmur, espresso machine, rain against windows.
Ambient: forest at night — crickets, distant owl, gentle wind through leaves.
Ambient: busy intersection — traffic, horns, construction in the distance.
Best practices:
- 2-3 ambient elements maximum — more gets muddy
- Describe the space acoustics: "reverberant church hall", "tight car interior"
- Contrast silence with sound for impact: "Dead silence. Then — a single footstep."
4. BGM — Background music mood
Don't name songs or artists (content filter). Describe the musical texture.
BGM: slow piano, minor key, melancholic.
BGM: tense orchestral build — low strings, rising.
BGM: lo-fi hip-hop beat, warm vinyl crackle, relaxed.
Best practices:
- Describe instrumentation, tempo, mood — not genre labels alone
- "Tense strings, building" works better than "suspenseful music"
- Specify when music enters/exits: "Piano enters at the midpoint, builds to the end"
- For beat-sync content: "Cuts match the downbeat" or "Movement peaks on the drop"
Audio Prompt Structure
Add audio cues naturally within your prompt or as a dedicated block at the end.
Inline method (preferred for short prompts):
A woman walks into a quiet library. Her heels click on the marble floor — each step
echoing. She whispers to the librarian: "Do you have the Collected Letters?"
Distant page turns. A clock ticks somewhere above.
Dedicated block method (better for complex audio):
[Scene description — visual content, action, camera]
Audio:
Dialogue: She says "We leave at dawn." He replies: "I'll be ready."
SFX: coffee cup set down, chair scraping back
Ambient: early morning kitchen — birds outside, kettle just boiled
BGM: none — silence emphasizes the tension
Lip-Sync Rules
Lip-sync is the most failure-prone audio feature. Follow these rules strictly:
Expressive facial acting around the words — forced smiles, leaking fear,
mixed emotions during a spoken line — is driven separately by FACS Action Unit
codes per beat. Let lip-sync shape the phonemes; schedule the brow/eye/cheek
AUs for the performance. See ../higgsfield-facs/SKILL.md § Dialogue &
Monologue Facial Acting.
Do:
- Keep dialogue clips 3–8 seconds (sweet spot for accuracy)
- Use medium close-up or closer framing — model needs to see the mouth clearly
- One speaking face per shot — multiple faces break audio routing
- Lock the camera:
locked-off static camera or slow Dolly In only
- Remove all head/face motion tokens:
nodding, turning head, looking around
compete with the lip engine and cause desync
Don't:
- Don't combine dialogue with vigorous head movement in the same prompt
- Don't use 15s clips for lip-sync — technical max but accuracy degrades past 8s
- Don't include ambient or music tokens if lip-sync is the priority — they invite
the generative audio engine to override your dialogue
- Don't use non-MP3 audio for Seedance 2.0 (when available) — WAV/AAC/OGG fail silently
Multi-character dialogue workaround:
Multi-person lip-sync matching is an unresolved limitation across all models.
The production workaround:
- Generate each character separately with their own audio segment
- Composite in CapCut/Premiere using picture-in-picture + linear mask (15% feather)
- Static image for the listening character; generated video for the speaking character
Audio as a Conditioning Input — Seedance 2.0 (@Audio1)
The most under-used Seedance 2.0 capability: an uploaded audio file is a
conditioning input, not just an output track. The model spec lists audio
as a reference media role alongside image / video, and generate_audio
(native sound output) is documented as independent of the audio reference
medias — i.e. the uploaded file conditions the generation, and whether the
clip also gets generated sound is a separate switch.
This means @Audio1 has two distinct jobs, and you pick one per shot:
| Use | What @Audio1 does | Prompt discipline |
|---|
| Audio-as-output | Plays the uploaded track unmodified as the clip's soundtrack | Timestamp-anchor it (plays exactly as uploaded from 0s to end) and remove all ambient/SFX/music tokens so the engine doesn't override it (see § Seedance 2.0 below) |
| Audio-as-driver (beat sync) | Drives the visuals — cut timing, camera acceleration, action pace, energy peaks | Write the audio→visual mapping explicitly (below). The clip can still get generated sound, or set generate_audio false for visuals-only. |
Why it works (author's model — empirical, not in the official spec): the
temporal branch that reasons about motion and pacing reads the sound's
structure — beat positions, dynamic contour, timbral texture, song-structure
sections — and maps it to visual rhythm. Treat the mechanism as a working
model; treat the capability (audio reference role) as confirmed.
Beat sync — the audio choreographs the visuals
Upload an MP3 as @Audio1, then map audio characteristics to visual elements.
The minimum is three sentences, each handling one thing — rhythm source /
which visual responds / how energy maps to the arc:
Use @Audio1 as the rhythmic foundation. Sync camera transitions to the beat
positions. Visual energy builds with the audio crescendo and peaks at the drop.
You can assign different visual elements to different audio characteristics —
mixing audio-to-visual the way you'd mix a track:
@Audio1 drives the visual rhythm. Camera cuts land on the downbeats. Subject
movement accelerates into the build, holds at the peak, releases on the drop.
Colour temperature shifts warmer with the crescendo.
Camera ← beat position. Movement ← dynamic contour. Colour ← overall energy arc.
It stacks with other references — character from @Image1, camera style from
@Video1, rhythm from @Audio1, processed together:
@Image1 as character reference. Follow @Video1 camera-movement style. @Audio1 as
rhythmic foundation — sync all camera transitions to the beat positions.
Character movement should pulse with the music.
The one constraint: @Video1 camera style and @Audio1 rhythm have to be
temporally compatible. A slow continuous dolly pulled from a video reference
fighting an EDM track sends the temporal branch conflicting instructions — same
failure class as mixing reference images of clashing styles. Pick references
that can coexist. (Sibling of ../higgsfield-seedance/SKILL.md § Reference Roles
→ Load-Bearing Rule: references stay in their lanes.)
The [AUDIO: Xs] script block — dialogue + SFX + lip-sync from text alone
No microphone, no recording. A timestamped script inside the prompt text
generates voices, SFX, and lip-sync. Quoted text → speech with automatic
lip-sync; physical descriptions → sound effects. Each marker is a timestamp in
the clip:
[AUDIO: 0s] heavy footsteps on concrete, echoing in a corridor
[AUDIO: 2s] door bursting open, impact bang
[AUDIO: 3s] character says "Nobody move"
[AUDIO: 5s] tense silence, distant traffic
[AUDIO: 7s] character says "Put it down. Slowly."
[AUDIO: 9s] object placed on table, soft thud
The model generates the voice first, then maps facial movement to the
waveform — so lip-sync quality is mostly set by how precisely you wrote the
dialogue. Exact quoted text outperforms paraphrase. It works across
languages (write the line in Spanish/Japanese/French → speech with
phoneme-level lip-sync in that language).
This obeys the same physical rules as § Lip-Sync Rules above: a strong @Image1
character reference gives a consistent mouth structure to animate, and close-up
framing beats wide (a small face has too few pixels to sync). Keep individual
dialogue beats inside the 3–8s accuracy window.
It combines with beat sync in one generation — uploaded music as the
rhythmic foundation, the script block as foreground dialogue/SFX, cuts synced to
the beat:
@Audio1 as background music. Sync camera transitions to the beats.
[AUDIO: 0s] music from @Audio1 begins
[AUDIO: 3s] character says "This changes everything"
[AUDIO: 5s] sharp breath — beat drop hits simultaneously
[AUDIO: 8s] character says "Let's go"
The 15-second extraction problem — pick the window, don't upload the track
The audio reference limit is 15s, and the model takes the first 15s of
whatever you upload. Drop in a full 3-minute track and you almost always feed it
the intro — low energy, often ambient, no rhythmic drive. Nothing for the
temporal branch to map.
The right 15s follow a build → drop arc: rising tension into a peak. That
dynamic gradient is what becomes visual energy structure. A segment with uniform
energy gives the model beats to detect but no arc — output is rhythmically
synced but dramatically flat.
Where the window lives:
- Pre-chorus into chorus
- Instrumental build into the drop (EDM, electronic, hip-hop)
- Verse climax into a bridge
- The last 15s of an intro that breaks into the first hook
Extract exactly that segment before uploading. MP3 at ≥256kbps — lower
bitrate degrades beat detection. Don't upload the full track and hope; pick the
window, cut it, upload that. (Flipping the workflow — audio in first, visuals
built around it — changes the output at a structural level, not subtly.)
Audio by Model — What Works Best Where
Kling 3.0 (V3) / 3.0 Omni (O3)
- Best overall audio-visual integration
- Multi-language dialogue (English, Chinese, Japanese, Korean, Spanish + regional accents: American English, British English, Indian English)
- Multi-character dialogue: 3+ characters with correct speaker attribution and lip-sync per character
- Voice Binding: lock specific voice profiles to specific characters across shots
- O3 adds Voice Extraction from static images: upload audio clip (min 3s) + image to build a voice profile
- O3 adds Performance Cloning: act out a scene on camera → AI re-renders preserving likeness and voice
- Include dialogue, ambient, and SFX naturally in the prompt
- Prompt like a script: action + camera + mood + dialogue cues together
Audio Speaker Attribution Format (V3/O3):
[Speaker: Character Name] "dialogue" in a [warm/confident/excited] [male/female] voice with [accent].
Add [sound: footsteps / rain / door closing] when [action].
Background ambient: [environment description].
Seedance 1.5 Pro
- Best lip-sync accuracy of all models
- Class-leading multilingual support including Chinese dialects
- Most stable emotional tone control
- Use for: professional dialogue scenes, multilingual content
Seedance 2.0
- Upload MP3 audio as @Audio reference (part of Rule of 12)
- MP3 only — WAV/AAC/OGG/FLAC fail silently with no error
- Max 15s per clip, 3 audio files, 10MB each; ≥256kbps for beat-sync (beat detection)
- Timestamp anchoring (audio-as-output):
"Audio @Audio1 plays exactly as uploaded from 0s to end. Do not modify."
Then remove all ambient/SFX/music tokens to prevent the generative engine from overriding.
@Audio1 is also a visual driver — beat sync, the [AUDIO: Xs] script block,
and the first-15s extraction trap are all in § Audio as a Conditioning Input above.
Diegetic-only convention for the prompt body — a
prompt-authoring discipline that sits on top of Seedance 2.0's
audio capability. BGM is a valid audio layer (see § The Four
Audio Layers above) — that's what Seedance can generate. The
diegetic-only convention is what you should write in the
prompt body: only sounds that physically exist in the scene
(footsteps on wet pavement, fabric whip on motion, breath, room
tone, weather, weapon fire, crowd reaction, stage haze) rather
than naming songs, lyrics, or score cues. If music is intended
for the final cut, layer it in post rather than in the prompt
body.
Two reasons the discipline matters even though BGM is
supported: (i) score descriptors ("dramatic strings",
"orchestral swell") underdetermine the generated audio and
routinely produce generic music beds at odds with the scene;
(ii) the timestamp-anchoring + remove-all-music-tokens
pattern in the bullets above already enforces this discipline
when an MP3 audio reference is uploaded — the diegetic-only
convention generalizes that pattern to all Seedance prompts
whether or not an audio reference is attached.
Veo 3 / 3.1
- Strong native audio for English dialogue and environmental sounds
- Dialogue in quotes:
"This must be it," he murmured.
- SFX explicitly:
tires screeching loudly
- Ambient as environment soundscape descriptions
Grok Imagine Video
- Improved audio as of Video Imagine 1.0 (Feb 2026)
- Include audio intent directly in prompt — same inline style as other models
- Best for: social clips where audio adds polish but isn't the hero
Common Audio Failures and Fixes
| Problem | Cause | Fix |
|---|
| Lip-sync completely off | Audio > 8s, or head motion tokens present | Trim to 5s, remove nodding/turning tokens |
| Model replaces uploaded audio | Ambient/music tokens in prompt invite generative override | Add timestamp anchoring phrase, remove all ambient/music tokens |
| Dialogue missing entirely | Non-MP3 format used (Seedance 2.0) | Convert to MP3 128-320kbps |
| SFX drowns out dialogue | Too many SFX cues competing | Reduce to 1-2 SFX per shot, prioritize dialogue |
| Audio sounds robotic | Flat emotional cues | Add emotional direction: "says warmly", "whispers with urgency" |
| Background music too loud | BGM description too prominent in prompt | Move BGM to end of prompt, reduce detail, or say "subtle BGM" |
When to Skip Audio
Not every prompt needs audio direction. Skip audio cues when:
- Using a model without native audio (Kling 2.6, Wan 2.6, Seedance Pro, Minimax Hailuo 2.3/02)
- The content is purely visual (product beauty shots, abstract motion, landscape)
- Audio will be added entirely in post-production
- The prompt is already at the 200-word limit and visual direction is more important
Negative constraints: For audio-specific artifacts (lip-sync desync, background music
overriding dialogue, SFX drowning dialogue) and their prevention phrases, see
../shared/negative-constraints.md — Temporal/Consistency Artifacts section.
Cinema Studio 3.0 Audio (Business/Team Plan)
Cinema Studio 3.0 introduces native audio-video joint generation — a fundamental shift from models that treat audio as a post-processing step.
Native Audio-Video Joint Generation
Audio is generated simultaneously with video via a unified multimodal architecture. This means:
- Audio and video are temporally aligned by default — no manual sync needed
- Dual-channel stereo output
- Sound design prompts directly influence both audio AND visual generation
- Audio is not "added on" — it's part of the same generation pass
Audio as Prompt Element (SCELA)
Always describe audio as a separate section in your prompts. The generation engine handles three parallel audio tracks:
- BGM — background music, score
- Ambient SFX — environmental sounds, foley
- Dialogue — character speech, voiceover
A chef slices vegetables rapidly on a wooden cutting board.
Camera: tight close-up tracking the knife.
Style: warm kitchen lighting, shallow depth of field.
Audio: rhythmic chopping on wood, oil sizzling in a nearby pan,
soft clinking of ceramic bowls. Light acoustic guitar BGM.
Input Constraints
| Parameter | Limit |
|---|
| Accepted formats | MP3, WAV |
| Max audio clips | 3 per generation |
| Combined duration | ≤15s total |
| Single file size | <15MB |
| MP3 bitrate | 128–320 kbps |
Lip-Sync
Available but experimental in Cinema Studio 3.0:
- Focus on emotion and general mouth movement, not perfect phoneme sync
- Single face per generation only — multi-face lip-sync is not supported
- For best results, keep dialogue segments under 8 seconds
- Pair with clear frontal or 3/4 face angle reference images
Tone / Voice Cloning via @Reference
Control speaking style, accent, and language by referencing a video with the desired voice:
Voiceover tone references @Video1. The narrator describes the product
in a warm, conversational tone. "This changes everything."
Audio @Audio1 plays exactly as uploaded from 0s to end.
Do not modify or replace the audio content.
Dialect Support
Dialects written directly in the prompt work — the model understands regional speech patterns. Write dialogue in the target dialect for authentic delivery.
Timestamp Anchoring
When uploading reference audio that must play unmodified:
Audio @Audio1 plays exactly as uploaded from 0s to end.
Do not modify or replace the audio content.
Then remove all ambient/SFX/music tokens from the prompt to prevent the generation engine from overriding the uploaded audio with generated sound.
Sound Design Specificity
Describe specific foley, not generic moods:
Wrong: nice ambient sounds, pleasant background noise
Right: the scratch of frosted glass, rustling of plush fabric, gentle tapping on acrylic, popping of bubble wrap, wooden floor creaking under bare feet
Specific sound descriptions directly influence the generated audio output. The more precise the foley description, the more accurate the result.
Standalone Audio tab — voice models (TTS / voice tools)
Separate from in-video native audio above, the Audio tab offers dedicated voice tools — Voiceover (text → speech), Change Voice (swap a voice in any video), and Translation (translate speech in any video) — driven by these models:
| Model | Provider | Best for |
|---|
| Eleven v3 | ElevenLabs | Expressive AI voice with emotion control |
| MiniMax Speech 2.8 HD | MiniMax | Studio-quality text-to-speech |
| Seed Speech (NEW) | ByteDance | Multilingual text-to-speech |
| VibeVoice | Higgsfield | Long-form expressive voice synthesis |
Use Seed Speech when the deliverable is multilingual voiceover/narration; Eleven v3 when fine emotional/tone control matters; VibeVoice for long-form narration. These are standalone voice generators — distinct from the native joint audio baked into Kling 3.0 / Seedance 2.0 / Veo during video generation. (Hand-maintained UI list — no audio specs snapshot yet; verify live before quoting pricing.)
Related skills
higgsfield-models — Which models support native audiohiggsfield-troubleshoot — Audio failure diagnosishiggsfield-cinema — Cinema Studio audio workflow with Kling 3.0higgsfield-vibe-motion — Motion graphics with audio (different from AI-generated audio)
