![]() ![]() We use FFmpeg to process the audio stream, but the same concept may work with other media processing tools as well.Ī foundational knowledge of Lambda, Amazon S3, AWS Identity and Access Management (IAM), FFmpeg, Boto3, and Python scripting language is recommended to build this workflow. The Lambda function we use can be used as a pre-processing stage for larger workloads. In this post, we build a demo that processes UGC and converts audio from VFR to CFR. ![]() VFR audio may often lead to audio sync issues in media workloads. converting variable frame rate (VFR) audio to constant frame rate (CFR) audio, which is the use case we demonstrate in this postĭepending on the recording device, UGC is sometimes captured with VFR audio (with smartphones, for instance).converting audio-only files to audio/video (A/V) by inserting a video stream of a slate, black frames, or even a waveform. ![]()
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