How to do input remixing with MediaConvert audio selector groups?

Question

I have a MediaConvert job with one input. This input has two audio selectors, both selecting from external files (each file being stereo audio). An audio selector group contains both of these audio selectors.

The job outputs to a file group, with a single aac audio, using the audio selector group above as its source. As expected, this produces a file that includes the audio of both of the external files combined together.

If I enable input remixing on the input audio selectors then the output only includes the audio from one of the external files. This seems to happen if I leave the remixing values unchanged, or all zeroes, or various other combinations of values.

Is this expected behaviour?

Roman Chekmazov · Answer

I suggest to do remixing on the output.
Here is elemental server user guide that explain output remixing in deeper way: https://docs.aws.amazon.com/elemental-server/latest/ug/aws-elemental-server-audio-channel-mapping.html
MediaConvert is supporting the same functionality (just no good explanation in EMC user guide).

robc_amzn · Answer

Based on your second paragraph, it sounds like ouput stage remixing works for you, which is great. This is the most common use case. If you want to pursue some issue with input-stage remixing, we suggest opening a support case with AWS Prem Support.

robc_amzn

answered 2 years ago

How to do input remixing with MediaConvert audio selector groups?

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