I’m really interested in buying the ReSpeaker 4-Mic Array which I would like to use with my Alexa Device SDK I’ve built from following this github https://github.com/alexa/avs-device-sdk.
However I’m a total newbie to the Raspberry Pi (only had one for 2 weeks), Raspian (never even used Linux before), Alexa and, well, everything and so I’m not too sure whether I can add this to my project or not. I’m hoping someone may be able to answer a few questions I have.
- I’m not using the onboard sound of the Raspberry Pi, instead I’m using the HiFiBerry Amp2 HAT https://www.hifiberry.com/shop/boards/hifiberry-amp2/. Can I attach the ReSpeaker 4-Mic Array to the Amp2 board? The Amp2 uses GPIO2-3 for configuration, GPIOs 18-21 for sound interface & GPIO4 for Mute, are any of these GPIO’s used by the ReSpeaker 4-Mic Array?
2.Looking at the installation instructions for the ReSpeaker it says:
As I’m not using onboard audio, indeed I have disabled it as part of the installation instructions for the Amp2 board, would I skip this step or need to select the Amp2 and the audio output? If so, how?
3. The instructions for getting Alexa set-up say to create a .asoundrc file in /home/pi/ my file currently looks like this:
</s>pcm.!default {
type asym
capture.pcm "mic"
playback.pcm "speaker"
}
pcm.mic {
type plug
slave {
pcm "hw:1,0"
}
}
pcm.speaker {
type plug
slave {
pcm "hw:0,0"
}
}<e>
My current mic is a rubbish 3.5mm jack mic connected to a USB Audio Adapter with a mic input and headphone output. It works but you have to be very close to it hence my interest in the ReSpeaker. Would it just be a case of changing the device/card number for the mic to that of the ReSpeaker or would I have to do something else?
</another newbie asking dumb questions again>
