@JStrebeyko, do you have other sources in the same format that you can test with. There may be something wrong with the audio in the source you provided. Unclear what that may be.
MediaConvert can work with ProResHQ sources with PCM S24 BE audio (the formats of your source). Running tests on the source you provided creates the same noise burst audio you detail, no matter what the audio output, even WAV files (that don' encode audio).
Please submit an AWS Support ticket, specifically for MediaConvert and include the source file you have here. The MediaConvert team will be able to determine what may be the issue with the source audio, or if MediaConvert is having difficulty with ingesting it.
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