Which AWS service is used to convert audio and video files for playback on various devices?

AWS Elemental MediaConvert is specifically designed for converting audio and video files for playback on a variety of devices. This service provides a scalable and cost-effective way to transcode media, allowing content creators and distributors to ensure their files are optimized for different formats, resolutions, and device compatibility.

MediaConvert supports numerous input and output formats, enabling users to prepare their media assets for delivery across platforms such as streaming, broadcast, and cloud storage. By providing a range of features like adaptive bitrate streaming and advanced quality control measures, MediaConvert makes it easier for users to meet the demands of modern media consumption.

The other services listed serve different purposes. For instance, AWS Lambda is a serverless computing service that runs code in response to events and is not specifically tailored for media transcoding. AWS S3 (Simple Storage Service) is a storage solution that lets users store and retrieve any amount of data but does not include dedicated media conversion capabilities. AWS CodePipeline is a continuous integration and delivery service for automating the build, test, and release processes of software applications, which does not relate to media conversion tasks.