# Play Sound from USB Microphone
**URL:** https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551
**Category:** Dashboard
**Created:** [25 August 2018 09:25 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551 "2018-08-25T09:25:09Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 09:25 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/1 "2018-08-25T09:25:09Z")
Hello,
Can anybody tell me if it's possible to play the sound received from a USB microphone attached to a Raspberry PI and play it through the Dashboard UI? I have tried several microphone and play sound node combinations, where .wav files are recorded and replayed but no sound has been received?
Thanks in advance
Glenn
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2018 10:10 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/2 "2018-08-25T10:10:24Z")
Is it the recording or replaying that is not working?
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 10:24 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/3 "2018-08-25T10:24:10Z")
Hi Colin,
All seems to be working, but the bit I'm confused about is how to deliver the sound through to Dashboard. I have put a template on to try and deliver to my intended endpoint group.
Thanks
Glenn
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### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [25 August 2018 10:35 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/4 "2018-08-25T10:35:52Z")
Are you connecting to NR using a browser on the Pi or on another machine?
What node are you using to play the audio?
What version of NR?
What version of Node.js?
What browser?
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [25 August 2018 10:48 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/5 "2018-08-25T10:48:07Z")
The dashboard has an audio out node.... why not feed the wav (as a buffer) to that.
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 11:40 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/6 "2018-08-25T11:40:29Z")
NR connecting as a browser (chrome) from phone
Play\_Audio\_File
NR Version/node.js 8.11.4
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 11:41 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/7 "2018-08-25T11:41:15Z")
Thanks for coming back to me,
which node is this please?
The wav file buffer node I have has no output node
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2018 12:23 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/8 "2018-08-25T12:23:06Z")
In the nodes panel scroll down to the Dashboard nodes and there you should see Audio Out.
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 12:32 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/9 "2018-08-25T12:32:52Z")
Is that node more for text to speech?
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2018 12:42 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/10 "2018-08-25T12:42:42Z")
> [@GChapo](#):
>
> Is that node more for text to speech?
Either, as it says in the info panel.
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 13:03 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/11 "2018-08-25T13:03:28Z")
Thanks Colin,
Still no joy though. Nodes are as above. I am a little confused as to how the usb port for the microphone is assigned as the first node doesn't seem to require this information and I am getting no sound out when I go from my phone to the assigned group.
Glenn
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2018 13:47 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/12 "2018-08-25T13:47:06Z")
You indicated previously that you were getting the wav file ok.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2018 13:49 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/13 "2018-08-25T13:49:31Z")
If not then which node are you using for the microphone (node-red-contrib-something)?
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 14:04 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/14 "2018-08-25T14:04:28Z")
Hi Colin,
node-red-contrib-micropi
I used their example flow and on the "micropi" node, if I browse to the [http://localhost:1880/getAudio](http://localhost:1880/getAudio) url it will immediately download a wav file which I have played on my windows pc using VLC. So I assume the deom.wav file is working ok. However, I want it to buffer the sound through the dashboard ui.
Hope that makes sense.
Glenn
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [25 August 2018 14:51 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/15 "2018-08-25T14:51:28Z")
If it's already giving you a wav file in a buffer then feeding it direct to the audio out node should work
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 15:03 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/16 "2018-08-25T15:03:26Z")
Hi dceejay,
I don't recognise your middle node.
Are you able to export the clipboard and tell me the node please?
Glen
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [25 August 2018 15:11 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/17 "2018-08-25T15:11:58Z")
Thats just a file in node (from Node-RED v 0.19) to read a test wav file I had on my pc - set to output contents as a single buffer. You may not need it if you are already getting a wav buffer direct from the mic
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 15:46 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/18 "2018-08-25T15:46:21Z")
Ok, looks different on your node red version. Set up as stated and I get no sound what-so-ever. I've tried the absolute path - home/pi/audio/demo.wav and audio/demo.wav to no avail. I've looked at the demo.wav file and it hasn't been updated for sometime.
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [25 August 2018 15:55 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/19 "2018-08-25T15:55:14Z")
path must start with / to be absolute so `/home/pi/audio/demo.wav` etc
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### Author:  [@GChapo](https://discourse.nodered.org/u/GChapo)
#### Post date: [25 August 2018 16:21 UTC](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/20 "2018-08-25T16:21:09Z")
sorry, that is how I have it.
Still confused by how the node picks up which USB the microphone is attached to?
[Next page](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551.md?page=2)