Free AI Video with Audio Generator Seedance 1.5 Pro

Choose one short scene of a cup placed on a table, with the contact sound as the expected cue. Describe that event and its quiet room ambience in the prompt, using only controls present in the selected model's current schema. A complicated multi-scene script makes it harder to judge whether picture and sound align. Keep the test clip brief. Review whether the sound begins at the right visible moment, whether an unwanted voice appears, and whether the action remains coherent. Do not claim all Seedance variants support the same audio behavior; use the exact model page you opened.

The WaveSpeed account-levels page says eligible new users may receive trial credit. A new email is not enough to guarantee it. Check the balance and run estimate shown for your account and chosen model. If no trial covers the intended settings, obtain a current cost before generating. Resolution, aspect ratio, duration, and audio switches can affect the task and its cost. Read the current form or API schema for the selected variant rather than copying settings from another Seedance route.

Watch and listen from start to end on a normal device. Check visual continuity, intelligible speech if speech was requested, sound timing, and any unexpected music. A clip may be useful for a concept test but unsuitable for final release because it changes an object or invents a voice. If you need to overlay a specific licensed track, a video editor is the safer route. Generated synchronized audio is not a promise that you can import arbitrary existing music through this model. The general shot guide covers visual planning separately.

Save the prompt, model variant, settings, run estimate, output, and notes about sync. If the first clip fails, change one variable at a time so the next result teaches you something. Do not turn trial eligibility into a production-budget assumption.