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© 2022, Amazon Web Services, Inc. or its affiliates. All rights reserved. Amazon Confidential and Trademark.
Slack elevates media pipeline with AWS
CHALLENGE
The clips feature in
Slack treated video the
same way as other
content. The entire
video file had to be
downloaded prior to
playback, leading to
long buffer times for
large files. Client
compatibility,
accessibility, and video
quality were also
challenges.
SOLUTION
• AWS Elemental MediaConvert
generates HLS (HTTP Live
Streaming) outputs enabling
adaptive bitrate (ABR) streaming
• Quality-Defined Variable Bitrate
(QVBR) mode in MediaConvert
automatically adjusts bitrate to
maintain consistent video quality
and save bandwidth
• Amazon Transcribe generates
line-by-line, time-stamped
transcriptions for captions
BENEFITS
• Shared clips are universally playable,
transcoded to HLS video for smooth
playback in seconds, a process that
previously took several minutes
• Video quality is improved, using QVBR
and 1080p resolution, with better text
legibility when screen sharing
• Automatic caption creation improves
accessibility and searchability of clips
We wanted to make files playable as soon as possible, without
investing in media infrastructure. With MediaConvert, our streaming
playback has been improved by orders of magnitude, and now
buffering is negligible to the customer experience.
—Kelly Moran, Senior Staff Technical Lead Manager, Slack
Company: Slack
Industry: Enterprise
Country: United States
Website: slack.com
About Slack
Slack is the productivity platform that
empowers everyone with no-code
automation and AI, makes search and
knowledge sharing seamless, and
keeps teams connected and engaged.
Around the world, Slack is the
platform companies trust and people
love to use.