garageCube

[donuan]

Hi guys,

Did anyone have any luck with getting multi channel audio out from madmapper on mac?
I tried exporting a .mov, prores422 with 6 channels but I'm not getting that to work.

Any other ideas?
or recommendations for a light weight software bridge?

Thanks a bunch!


Spects:
Mac Book pro 2019, 16inch, 2,4 GHz 8-Core Intel Core i9, 64 GB 2667 MHz DDR4,
Mac OS 10.15.7 (Catalina)
Audio interface: Behringer UMC1820.

[mad-matt]

There should be no problem with 6 channels.
First, did you activate "Enable Hardware Acceleration" in the movie setting in MadMapper ?
If so, audio is directly handled by Apple AVFoundation, and audio is directed to the audio device selected in your macOS.
If not, audio is handled by MadMapper. ProRes are per default set to use AVFoundation on macOS because it does hardware decoding, but it's working perfectly with FFMPEG.
If you play in QuickTime, does it go to all 6 channels ?

[piotrus04]

Hi Matt , donuan,

Precisely the ffmpeg command is

ffmpeg -i "videofilepath" -i "audiofilepath" -c:v copy -c:a copy -map 00 -map 10 new.mov

We use that command to concatenate sometimes heavy multitrack audio with the related video file.

The command means :
copy the video and audio in one file and map the video on track 0 and audio (interlaced) in track 1.
Output it as a file named new.mov

And do as Matt commented , hardware acceleration. If you are on Mac, you will have to select the same audio driver in OS X than in
Madmapper. If I remember well, it doesn’t work well if you do it by other means.

Of course , first, Use ocenaudio audacity or any free audio tool to manipulate the audio stems and output it as a single interleaved multitrack audio file.

Best
Pierre

[piotrus04]

Hi Matt , donuan,

Precisely the ffmpeg command is

Code: Select all

ffmpeg -i "videofilepath" -i "audiofilepath" -c:v copy -c:a copy -map 0:v:0 -map 1:a:0 new.mov

We use that command to concatenate sometimes heavy multitrack audio with the related video file.

The command means :
copy the video and audio in one file and map the video on track 0 and audio (interlaced) in track 1.
Output it as a file named new.mov

And do as Matt commented , hardware acceleration. If you are on Mac, you will have to select the same audio driver in OS X than in
Madmapper. If I remember well, it doesn’t work well if you do it by other means.

Of course , first, Use ocenaudio audacity or any free audio tool to manipulate the audio stems and output it as a single interleaved multitrack audio file.

Best
Pierre