Fresh model workflow · verified 2026-09-20

LTX 2.5 Native Audio Guide

How to prompt synchronized sound with LTX 2.5: ambience, dialogue, SFX, timing and continuity for text-to-video and image-to-video workflows.

How this workflow works

LTX 2.5 can generate picture and synchronized audio in one pass. Treat sound as part of the shot design instead of an afterthought: describe only the audio events that should occur during the visible action.

Tracked model

LTX 2.5 Pro

Text → videoImage → videoNative audioFirst / last frameMulti-shotAudio → videoOpen weights

Current provider documentation →

Step 1

Write audio as timed production direction

Use concrete sounds that correspond to visible events: footsteps, room tone, a door close, a short spoken line or a music cue. Avoid stacking unrelated sound events into a short shot.

Step 2

Keep dialogue short and attributable

Name who speaks, quote one concise line and keep the camera/face stable enough for readable mouth motion. For longer scripts, split the sequence into shots.

Step 3

Preserve audiovisual continuity

If a sound begins before a cut or continues across a shot, state that explicitly. Match the ambience to the environment and avoid contradictory sound sources.

Prompt example

A practical starting structure

Medium close shot of a barista placing a ceramic cup on a wooden counter, slow push-in, warm morning light. Sound: soft ceramic knock on wood, low cafe room tone, distant espresso steam. The barista looks toward camera and says, “Your order is ready.” Natural timing, restrained gesture, synchronized speech.

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Sources & verification

Data sources used on this page

Model capabilities, vendor metadata and pricing references are read from the same GenVideoKit catalog used by the calculators and comparison tools.

Catalog checked 2026-09-20

LTX 2.5 Pro

Lightricks · LTX

Checked 2026-09-20

Tracked capabilities: Text → video, Image → video, Native audio, First / last frame, Multi-shot, Audio → video, Open weights

Reference source: LTX API

Official LTX API per-second rate; synchronized audio is included. Audio-to-video is billed by input-audio duration.

Reference API/provider rates only. Subscription credits, promotions, regional pricing and aggregator markups can differ.

Search intent

What this page is meant to answer

Use LTX 2.5 Native Audio Guide for explanation, setup choices and workflow checks rather than immediate prompt generation. It is the informational layer for this specific search intent.

How the workflow worksSettings or capability constraintsWhat to verify before generating

Scope boundary: Use the linked tool page when you are ready to build a prompt or calculate cost; keep this guide for the reasoning and setup.