For using the node `speech-to-text`, `sox` is needed for mac/windows users and `arecord` is needed for linux users.
npm install node-red-watson-api-liteFor using the node speech-to-text, sox is needed for mac/windows users and arecord is needed for linux users.
````
cd ~/.node-red
npm install node-red-watson-api-lite // to install this package
node-red // to start node-red