Audio-mixing over a video that already has volume

[chancebeyer1]

Hello, I am trying to add background music to a video that already has a voice-over. However the background completely removed the voiceover in the video and replaced it with the background music. Is this supposed to happen?

[stephengpope]

ah, great catch, no you should be able to layer it, maybe we should have a option to overwrite / or mix.

thanks for all the help!!

[gormson]

Hello, I'm reaching the same point in my process where I need to add music to a video with voice-over.
I tried different settings regarding the volumes of both the videos and/or the audio file without any success (ex: video_vol=100 and audio_vol=10 or video_vol=90 and audio_vol=10).

Is is something that is supposed to be fixed or is it still under development or do I even use it correctly?

Thanks a lot for your great work again, what you've done so far is crazy.

[stephengpope]

we actually have a new endpoint that we're going to release called ffmpeg_compose which will let you better design and call these type of audio mixing functions. so we will be fixing it soon.

[jomynn]

From ChatGPT , I try with this payload, But after webhook return multiple video files.
The /v1/ffmpeg/compose endpoint produced two output files in your case likely due to one of the following reasons
{
"inputs": [
{"file_url": "https://example.com/input_video.mp4"},
{"file_url": "https://example.com/input_audio.mp3"}
],
"filters": [],
"outputs": [
{
"options": [
{"option": "-c:v", "argument": "copy"},
{"option": "-c:a", "argument": "aac"}
]
}
],
"id": "unique-request-id"
}