schoolsla.blogg.se - Ffmpeg concat audio out of sync

Step 1 – Concatenating audio chunk files into single audio fileįirst, let’s combine all of the audio chunk files into a single file. The Python code snippets presented in steps 1 – 3 are targeted to run as AWS Lambda functions in the red box represented in the below architecture diagram. This demo assumes you already have media capture pipeline architecture running that captures meeting data (video and audio files) into an S3 bucket. The code in this blog post is licensed under the terms of the MIT-0 license.

The sample code shown in this post requires FFmpeg version 4.2 or later to use tpad filter option.

Basic understanding of creating Lambda FFmpeg layer (for how to, see this blog post).

Running Amazon Chime SDK architecture with media capture pipelines ready to store videos and audio into your S3 bucket (for how, see this blog post and github sample).

Basic understanding of Amazon Chime media capture pipelines (for detail, see this document).

Basic understanding of Amazon Chime SDK and AWS Lambda (writing simple Python code).

This can help with use-cases like 1) remote coaching or distance learning where video of meeting attendees are aligned next to each other 2) customer service with screen sharing where screen sharing as main video with individuals showing as small tiles at the side. In this blog post, we will share one of the many ways you can composite individual videos produced from media capture pipelines into single video file.

This feature provides options to capture individual videos of attendees separately so you have the power of flexibility to apply machine learning analysis (AWS Rekognition, Amazon Comprehend) to the captured data but requires some additional compositing to create a single output file. A new feature was recently released that allows the capture to be customized. In July 2021 we announced Chime SDK media capture pipelines as way to capture video, audio, and other data generated during a Chime SDK meeting into an S3 bucket.