i have install ReSpeaker 2 Mic Array with raspberry Pi 3 (hardware)... how can i use the mic on ReSpeaker 2 Mic Array? need install anythings(software)? and need using what node for receive sound ? because in my project have a microphone node that will direct use the laptop microphone ...

Hello I will take you through it step by step first test if you can record from the respeaker mic and its installed correctly. For this please go to your commandline of the raspberry pi and type arecord -l You should see an output with a list like this: **** List of CAPTURE Hardware Devices **** …

[image] it no show anything and it no volume control this devices..

Did you install the custom drivers that seeedstudio supplies for their raspberry pi microphone hats? https://wiki.seeedstudio.com/ReSpeaker_2_Mics_Pi_HAT/#getting-started click on this link and follow their instructions to install the necessary drivers in step two.

yes ..i have , but just now i have use sudo raspi-config to do something for audio because want link the bluetooth...before that i have output like you when run arecord -l

What ever you did probably interfered with the driver installation. You could try to uninstall it using the uninstall script they supply and than install them again.

Something you did did. I have used quite a few of those respeaker mics in the last few years and I hadn’t had anything like this happen. I would try uninstalling and reinstalling those drivers again. Make a backup before of anything critical of course.

okey, the problem is solved ... then now i want link to speech to text node, but it show error... [image]

Yes because the watson stt node expects a single wav buffer object but straight from the mic node you get raw pcm audio chunks as a stream of buffers. So you need to join the buffers and add wav headers to it. You will need to install https://flows.nodered.org/node/node-red-contrib-wav in nodered. …

[image] but it no text at output...like respeaker no receive my sound...

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What node can using for ReSpeaker 2 Mic Array Pi HAT v1.0

General

lingzhongli 28 May 2020 13:50 16

i no install anything...

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What node can using for ReSpeaker 2 Mic Array Pi HAT v1.0

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