sox

• How to create a static SOX executable to invoke it in AWS Lambda
• lambda-audio - GitHub: Run Sound eXchange (SoX), the Swiss Army knife of audio manipulation, with Lame on AWS Lambda. lambda-audio is static binary of sox utility, built for AWS Lambda. It supports sox, soxi and lame commands.
• sox-aws-lambda-binary - GitHub: Precompiled sox binary for AWS Lambda. This is a static binary of sox utility, built for AWS Lambda, deployable as an AWS lambda layer. It can help you get started quickly with SoX inside Lambda functions. It supports sox, soxi and lame commands.