No sound from exec play audio command

General
2
  1. What version of NR and node.js are you running? (see the startup log)
  2. What command do you use from the command line that works?
  3. What is the input to the exec node?
  4. please supply a copy of your flow

In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote ```)

``` 
   code goes here 
```

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See this post for more details - How to share code or flow json