Streamlining Handout Creation: Automating Webinar Recordings with Amazon Bedrock Data Automation

Overcoming Challenges in Transcribing Meeting Recordings

An Automated Solution: Turning Recordings into Comprehensive Handouts

The Power of Amazon Bedrock Data Automation

Workflow Overview: Transforming Presentations into Handouts

Initial Video Upload and Processing Steps

Detecting Shots and Transcribing Content with Amazon Bedrock

Synchronizing Audio Segments with Visual Shots

Generating Screenshots for Visual Representation

Refining Transcripts Using Amazon Bedrock Models

Crafting Handouts with Python-PPTX and AWS Lambda

Conclusion: Embracing Serverless Solutions for Efficient Documentation

Learn More about Amazon Bedrock Data Automation

About the Authors: Expert Insights from AWS

Automate Your Handout Creation: Transform Webinar Recordings into Structured Documentation with Amazon Bedrock Data Automation

Organizations across various sectors often grapple with the daunting task of converting meeting recordings or presentations into structured documentation. The manual effort involved—reviewing recordings, transcribing spoken content, capturing screenshots, synchronizing visual elements with speaker notes, and formatting the final output—can significantly drain productivity. This is especially true when managing multiple recordings, conference sessions, training materials, or educational content.

In this blog post, we will explore how to build an automated, serverless solution that enables the transformation of webinar recordings into comprehensive handouts using Amazon Bedrock Data Automation for video analysis. By leveraging AWS services such as AWS Lambda and Step Functions, we can streamline the process and eliminate much of the manual labor traditionally required.

Understanding Amazon Bedrock Data Automation

Amazon Bedrock Data Automation utilizes generative AI to automate the transformation of multimodal data (including images and videos) into customizable structured formats. This technology can provide insights like video scene summaries, identification of unsafe content, or the organization of content based on specific criteria. For our solution, we will use Amazon Bedrock Data Automation to extract audio segments and specific video shots, aligning them to facilitate handout creation.

Solution Overview

Our solution employs a serverless architecture orchestrated by AWS Step Functions. Here’s a high-level overview of the workflow:

Video Upload: The process begins when a video is uploaded to an Amazon S3 bucket, triggering an event notification through Amazon EventBridge to start the video processing workflow.
Shot Detection and Transcription: Amazon Bedrock Data Automation performs a job to identify different shots in the video (such as slide transitions) and transcribes the audio.
Synchronization: In this step, we match the spoken content with corresponding shots based on timestamps.
Screenshot Generation: We generate screenshots from detected video shots using FFmpeg-enabled Lambda functions.
Transcript Refinement: The transcription is enhanced using Amazon Bedrock foundation models to improve clarity and readability.
Handout Generation: Finally, refined transcripts and generated screenshots are compiled into structured handouts using the Python-PPTX library.

By employing this architecture, we can efficiently turn recorded presentations into polished documentation ready for distribution.

Workflow Detailed Implementation

Video Upload and Initial Processing

Using Amazon S3 as the entry point, we trigger an event notification on video upload. This sends a signal via EventBridge, initiating the Step Functions workflow, setting the stage for video processing.

Shot Detection and Transcription

Amazon Bedrock Data Automation kicks off a video transformation job that detects slide transitions and creates transcriptions. We establish a project for basic output configurations, which allows us to manage the asynchronous processing of this data via the InvokeDataAutomationAsync API. The job’s progress is monitored by polling the status, ensuring workflow efficiency.

Matching Audio Segments with Corresponding Shots

To create comprehensive handouts, it’s essential to map the audio segments to appropriate visuals (shots). An audio segment is a continuous stretch of spoken content that we need to accurately align with a visual representation, such as a slide. A Lambda function processes the audio and visual outputs, matches timestamps, and ensures that relevant transcripts are associated with their corresponding slides.

Screenshot Generation

Using a Lambda function with the ffmpeg-python library, we create screenshots of the detected video shots, which serve as the visual aids in our handouts. The images are stored in an S3 bucket, ready to be integrated into the final documentation.

Transcript Refinement

Simultaneously, we improve the transcript using an Amazon Bedrock foundation model. We utilize a Lambda function that refines the text based on the context of the content. This helps in correcting grammatical errors, filtering out speech disfluencies, and ensuring that the meaning remains intact.

Handout Generation

The concluding step involves the creation of the final handouts using the Python-PPTX library, which combines the refined transcripts and screenshots. A custom Lambda layer containing the python-pptx package is created to facilitate this step effectively.

import boto3
from pptx import Presentation
from pptx.util import Inches
import os

def lambda_handler(event, context):
    prs = Presentation()
    prs.slide_width = int(12192000)
    prs.slide_height = int(6858000)

    for i in range(num_images):
        slide = prs.slides.add_slide(prs.slide_layouts[5])
        slide.shapes.add_picture(image_path, 0, 0, width=slide_width)

        transcription_text = transcription_segments[i].get('transcript', '')
        slide.notes_slide.notes_text_frame.text = transcription_text

    pptx_path = os.path.join(tmp_dir, "lecture_notes.pptx")
    prs.save(pptx_path)

This function seamlessly integrates visual and textual elements into a cohesive presentation document.

Conclusion

In this post, we’ve illustrated how to automate the handout creation process using a serverless solution built on AWS. By integrating Amazon Bedrock Data Automation with Lambda functions, we’ve developed a scalable pipeline that minimizes manual efforts traditionally needed for documentation tasks.

This workflow addresses several key challenges in content creation:

Automatic detection of slide transitions
Intelligent refinement of transcription
Synchronized visual and textual content
Efficient handout generation using Python libraries

The serverless architecture orchestrated by Step Functions promotes cost-efficiency while maintaining reliability. This robust solution is adaptable across various sectors, serving education, corporate training, and more.

For further details about implementing this solution, check out our GitHub repository for the AWS Cloud Development Kit (CDK) stack. You’ll find the necessary resources to deploy the workflow in your environment and streamline your handout creation process.

Feel free to explore the extensive capabilities of Amazon Bedrock Data Automation and unlock the full potential of your presentation recordings!

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