ffmpeg gui extract audio separate wav files

I drag/drop these both into Resolve, and change the clip properties on the six-channel WAV so that Resolve interprets it as three sets of stereo channels rather than one set of six channels. Now I have a video file with a single stereo audio stream, and a separate six-channel WAV file.

What this ffmpeg command does is copy the video and first audio stream into a new MP4 file:Ĭode: Select all -vcodec copy -acodec copy video.mp4Īnd also copy streams 2, 3 and 4 (streams are numbered starting with 0 and include video, so these are the second, third and fourth audio streams) from the source into a single multichannel stream which is then saved to a WAV file.Ĭode: Select all -filter_complex 'amerge=inputs=3' -map '' audio.wav My source video from OBS has four audio tracks The first is a mix of all of the channels, and the other three have the audio separated into my voiceover, my collaborator's voiceover, and game sound. This would need some modification depending on exactly what your needs are but I'll try to explain how I use it and hopefully that'll help. I use ffmpeg to do it, with the following incantation:Ĭode: Select all ffmpeg.exe -i source.mp4 -vcodec copy -acodec copy video.mp4 -filter_complex 'amerge=inputs=3' -map '' audio.wav Yes it looked like that and yes I do use multiple audio tracks. Next question: Does your OBS output file have multiple audio tracks? Those can also cause issues, I extract audio to a multichannel WAV before importing into Resolve. If iTunes is already installed then it should in theory already be in use if so, the OBS logs should contain this line:Ĭode: Select all : Adding CoreAudio AAC encoderĪnd in that case it's obviously not solving the problem. If I understand that link correctly, all you have to do is have itunes installed? I've had that.Also I might be misunderstanding everything, but I can not figure out how to install just the apple coreaudio AAC. I installed the Apple CoreAudio AAC encoder and the problem went away.

Simon Brown wrote:I had problems with choppy audio in Resolve out of OBS and, in my case at least, there was a problem with the audio created by the MediaFoundation AAC encoder OBS uses by default on Windows.

Ffmpeg gui extract audio separate wav files