Serverless functions are now offered by many cloud providers, as well as having options like OpenFaaS, Knative, Apache's Openwhisk and more from the open source community that run in environments ranging from one server all the way up to globally replicated private clusters. - Source: dev.to / 4 months ago

The serverless functions with Digital Ocean are based on Apache Open Whisk, so the service has additional name space, which need to go into the URL. - Source: dev.to / over 1 year ago

The two biggest options are OpenWhisk and OpenFaas. Check out /r/serverless for more options. I'm experimenting currently with OpenFaas as it's the lighter weigh to of the two. Source: over 1 year ago

If you meant lambda for cloud functions provided by Amazon then this is open source and free, as long as you host it yourself: https://openwhisk.apache.org/. Source: almost 2 years ago

Not necessarily an orchestrator, but you could take a look at https://openwhisk.apache.org/ it's like AWS Lambdas but for kubernetes (and open shift if you swing that way). Haven't used it personally, but the reading I've done on it suggests you could probably use it for this. Source: about 2 years ago

To get the WAV file, some of the ways are using sox and running the command sox -e signed-integer -b 16 -r 16k -c 1 out.raw out.wav, or writing a python script using the wave library. Source: 11 months ago

Also sox can be handy for just audio. You can't beat ffmpeg in general, finding the right command options and testing can take time but with any of them it's worth building up your toolkit. Source: about 1 year ago

SoX is great for 99% of command-line audio work. The documentation can be tough to follow (and sometimes just missing or wrong), but once you wrap your head around the syntax and chaining effects together it is impressive what you can do. Source: over 1 year ago

To answer your question: https://sox.sourceforge.net/. Source: over 1 year ago

For no good reason, this prompted me to attempt to write a function in Bash which takes advantage of SoX to snap recorded audio to a desired length by speeding up or slowing down as needed. Source: over 1 year ago