In this blog, we will walk you through two use cases to show how to integrate Amazon Voice Focus AMI with your existing audio processing workloads. The Amazon Voice Focus AMI with FFmpeg integration provides customers both the flexibility and control to integrate the algorithm into any media pipeline. Most of the non-meeting workloads do not necessarily use the open-source WebRTC and often involve proprietary media pipelines. Customers have shown interest in our audio algorithm in a variety of other use cases, such as: podcast and live streaming audio cleanup. The Amazon Voice Focus AMI helps builders, content creators, and media producers to reduce background noise such as fans, lawnmowers, and barking dogs as well as foreground noise like typing and shuffling papers.Īmazon Voice Focus is available as a feature in the Amazon Chime SDK and helps customers reduce background and foreground noise from audio and video sessions created in Amazon Chime SDK meetings. It is now packaged as an Amazon Linux 2 (AL2) Machine Image (AMI). Amazon Voice Focus is an award-winning, deep-learning noise suppression algorithm used in Amazon Chime SDK meetings. And help to save some bandwidth for your web site visitors.Amazon Chime SDK team has launched Amazon Voice Focus AMI for customers to help reduce noise and improve the quality of their audio content. So, please remove the audio stream, if you do not require it. In this case you will have to change the video size, e.g. You might get a warning that the video size is invalid: width not divisible by 2. pix_fmt yuv420p ensures cross-device compatibility. This ensures that the video can be played, even if the video hasn't finished downloading. movflags faststart is specific to the mp4 format, that moves the metadata to the beginning of the video. With FFmpeg you can remove the audio stream with the following command:įfmpeg -i input.mp4 -c:v copy -an -movflags faststart -pix_fmt yuv420p output.mp4 I have seen savings up to 42% in file size. One thing I noticed is, that most videos contain audio even if the video is silent.īetter would be to remove the audio stream altogether. I was curious how large these videos typically are and if the videos could be better compressed. I have been looking at examples of web sites that use it. At the moment it's quite popular to use a video as a background.
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