Look for templates that mention:
Background music selection
Audio enhancement
Sound effects
Voice processing
MP3: Most common
WAV: Uncompressed, high quality
M4A: Apple audio format
OGG: Open-source format
For templates that support it:
Look for the Background Music option
Choose from preset music tracks, or
Upload your own audio file
Adjust the volume level using the slider
When background music is enabled:
A volume slider appears (0-100%)
0% = muted
100% = full volume
Adjust to balance with original video audio
Use high-quality audio files
Ensure you have rights to use the music
Match audio length to video length
Preview with audio before generating