ExactMusic
Generate

Background music for voiceover that matches your narration length

When the voiceover is finished, ExactMusic builds an instrumental bed at the same second length—15, 30, 60, or any whole number from 5 to 120—so you are not stretching picture or looping a mismatched cue under speech.

Why exact length matters under speech

Stock loops rarely end when your last sentence does. Stretching a 30-second bed under a 42-second take leaves a join in the middle of a line. Generating for the finished narration length keeps timing decisions in the duration control, and leaves the prompt for mood, pace, and instruments.

How to generate voiceover BGM

  1. 1. Measure the finished narration

    Include any title card or closing remark that still needs music. Enter that whole-second length in the music tool.

  2. 2. Describe a bed that leaves room for words

    Ask for sparse instruments and a steady pace—for example soft piano, warm pads, and a light pulse. Avoid dense melodies that compete with speech.

  3. 3. Preview with your voice track

    Play the MP3 under the narration. Lower the music wherever sentences need more space, and add a fade in your editor if the ending needs one.

Listen to a voiceover-friendly sample

The 30-second warm piano bed below is a starting point for product narration. The full sample strip also includes 15s ads, 60s explainers, and a 42-second custom cut.

30-second voiceover bed30s

Prompt idea: Warm piano, soft pads, gentle pulse under a product voiceover

15-second short ad bed
60-second explainer bed
42-second custom cut

Example prompts for voiced scenes

  • Soft piano, warm pads, light percussion, restrained instrumental background for a spoken product demo
  • Soft piano and warm ambient pads, slow steady pulse, restrained melody, instrumental background for a calm explainer
  • Minimal synth pads, subtle electronic pulse, calm focused mood, instrumental background beneath a software walkthrough

Voiceover BGM FAQ

Can the music match my exact narration length?
Yes. Enter any whole number from 5 to 120 seconds—including 17, 42, or 73—so the instrumental MP3 matches the section that needs music under your voice.
Can I try before buying credits?
Guest free preview covers durations up through 60 seconds (including 15/30/60 presets), limited by preview count and rate limits. Demo samples on this page are free to hear anytime.
Will the bed compete with my voice?
Ask for sparse instruments and a restrained melody, then listen with your voice track. Lower the music in your editor wherever speech needs more room; ExactMusic does not generate the voiceover itself.

Generate exact-length music for your voiceover

Open the music tool, set the seconds your narration needs, and describe the bed. Guest free preview covers up through 60 seconds, limited by preview count.