Change volume audio output

I want set volume audio when export video using Track.getTrackMetaData().setVolume(0.0f) But video export still has audio. Can you help me to set volume video output please

[bachhoan88]

Yes, Because my application using two audio (audio from video + audio from mp3 song) should be use ffmpeg for set audio video output

[buptlinyuan]

Correctly ffmpeg is very slow, but Y should use that for update audio, It very fast (video input 30s volume 50%, audio input 1’30s - volume 50% ==> Export video: 4-5s) If you want to a ffmpeg code to change volume, I’ll send it for y

hi, I have met the same problem, could you send it to me , my email : [e-mail] , Thanks! @bachhoan88