Generate Sound effects

On the Firefly homepage, select Create from the left panel, and then select Edit video (beta).

Open an existing project or create a new one to add media file to the timeline.

Select the Generate media icon from the right panel next to the video preview panel, and then select Sound effects.

In the prompt box, describe the sound you want to generate, such as "Gentle waves lapping on the shore" or "Rain falling on a window."

Move the Duration slider to your desired time to adjust the length of the generated audio or select the reset icon to return to the default duration.

If you wish to guide the generated audio or set the time duration with your voice, go to the Voice timing section and select the Record button.

• To precisely control when your audio begins, place the playhead at the exact frame where you want the sound to start. The video editor will play the timeline without sound to help you better match your voice to the timing.
• If prompted, allow Firefly video editor (beta) to access your device's microphone.
• Speak or make sound to guide your generated audio.

Select Generate to generate the audio with or without voice timing.
Currently, each generation produces 4 variations, each up to 30 seconds long.

Generated variations appear under the Variations section. Select the play icon to play the sound with the video, and the add icon to add them to your timeline.

You can easily switch between the variations from the same generation set by selecting the add icon This will import the clip to the Your media panel and replace the audio on your timeline.

Once a variation is added to the timeline, you can edit it like any other audio clip.