Playing mp3 Audio

General
11

Hey Mecky,

Have tested it with following flow, which downloads an mp3 from the web and plays it in the browser:

image

[{"id":"2a8146bc.01fa8a","type":"http request","z":"47b91ceb.38a754","name":"Download m3","method":"GET","ret":"bin","url":"https://www.thesoundarchive.com/email/mp_grail.mp3","tls":"","x":1260,"y":160,"wires":[["b4e7058c.12e0d8"]]},{"id":"7e9367c2.5c3018","type":"inject","z":"47b91ceb.38a754","name":"Start","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":1070,"y":160,"wires":[["2a8146bc.01fa8a"]]},{"id":"b4e7058c.12e0d8","type":"ui_audio","z":"47b91ceb.38a754","name":"","group":"16a1f12d.07c69f","voice":"0","always":true,"x":1460,"y":160,"wires":[]},{"id":"ca47e138.e7016","type":"comment","z":"47b91ceb.38a754","name":"Play mp3 in dashboard","info":"","x":1100,"y":120,"wires":[]},{"id":"fb9523fe.0686d","type":"http request","z":"47b91ceb.38a754","name":"Download m3","method":"GET","ret":"bin","url":"https://www.thesoundarchive.com/email/mp_grail.mp3","tls":"","x":1260,"y":260,"wires":[["4b104bb8.b27cd4"]]},{"id":"9fa09162.6a45b","type":"inject","z":"47b91ceb.38a754","name":"Start","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":1070,"y":260,"wires":[["fb9523fe.0686d"]]},{"id":"f9554a1d.16f3d8","type":"comment","z":"47b91ceb.38a754","name":"Play mp3 in flow editor","info":"","x":1100,"y":220,"wires":[]},{"id":"4b104bb8.b27cd4","type":"play audio","z":"47b91ceb.38a754","name":"","voice":"","x":1470,"y":260,"wires":[]},{"id":"16a1f12d.07c69f","type":"ui_group","z":"","name":"Default","tab":"f136a522.adc2a8","order":1,"disp":true,"width":"6"},{"id":"f136a522.adc2a8","type":"ui_tab","z":"","name":"Home","icon":"home","order":1}]

I run Node-RED on a Raspberry PI 3 model B and did the tests in browsers on Windows 10. It works fine in Chrome/Firefox/Edge both for flow editor and dashboard. So 6 tests in total ...

A couple of remarks:

  • The output of my http-request node is binary buffer. Don't convert audio or video anywhere to strings ...
  • In the audio-out node I have selected the checkbox 'Play audio when window not in focus, because it won't play otherwise when the tab (where you have added your audio-out node) isn't visible at the moment ...