Hello-Lucy + RaspPi Bullseye + MM v2.18 + USB Mic

[crazylegs]

Hello Forum… I wonder if someone could smack me in the head to make me see where I am going wrong.

I have been running MM v2.15 on RaspPi Buster for quite awhile, and part of that build is using Hello-Lucy with a PS Eye USB mic. This works just fine for me.

I decided to do a full rebuild of my system on RaspPi Bullseye and MM v2.18. Everything on this build works fine except Hello-Lucy. Basically, Hello-Lucy is having trouble opening the PS Eye mic. Here are some details:

1. I can see the mic device as card 1, device 0:

pi@InfoWall4:~ $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: CameraB409241 [USB Camera-B4.09.24.1], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

2. I can record to a wav and it plays back fine:

pi@InfoWall4:~ $ arecord --device=plughw:1,0 --format cd --duration 10 --channels 1 testmic.wav

Recording WAVE 'testmic.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono

3. I installed Hello-Lucy as per instructions, with 1 change. In dependcies.sh, I changed python-dev and python-pip references to python3-dev and python3-pip

4. My config.js file has the following parms:

{
			disabled: false,
			module: "Hello-Lucy",
			position: "bottom_left",
			config: {
    				keyword: 'OKAY JARVIS',             // keyword to activate listening for a command/sentence
 				timeout: 10,                        // timeout listening for a command/sentence
				defaultOnStartup: null,
				debug: true,
 				standByMethod: 'PI',              // 'DPMS' = anything else than RPi or 'PI'
 				microphone: "1,0",                  // run "arecord -l" card # and device # mine is "0,0"
 				sounds: ["silence.mp3"],      // welcome sound at startup. Add several for a random greetings
  				confirmationSound: "null.mp3",      // name and extension of sound file
				soundPath: 'modules/Infowall/Sounds',
				micOn: 'SpeechOn.wav',
				micOff: 'SpeechOff.wav',
  				startHideAll: true,                 // All modules start as hidden EXCEPT PAGE ONE
				pageOneModules: ["MMM-BackgroundSlideshow", "weather", "Hello-Lucy"],   // default to show on page1 start
    			}
		},

5. When I start up MM, Hello-Lucy shows:

6. There are no issues showing in the PM2 logs. However, the Hello-Lucy error.log shows just 1 while debug.log shows an error:

Error opening audio device plughw:1,0 for capture: Invalid argument
FATAL: "continuous.c", line 245: Failed to open audio device

So it seems like Hello-Lucy cannot grab hold of the mic device, even though I can access the mic just find from CMD.

Any thoughts anyone?? Perhaps referencing python3 in the Hello-Lucy dependencies.sh script is not advisable?

Thanks…

[sdetweil]

@crazylegs under the covers, Lucy uses pocketsphinx-continuous, which builds some files. it MIGHT use python to do that. I don’t know

[crazylegs]

@sdetweil Thank you. Yes, I was thinking about the same thing and trying to avoid digging into the pocketsphinx code :) But I think that’s where I will head next.

[sdetweil]

@crazylegs I helped fix this code (and the Psc lib) long ago cause of the underlying library connecting to the mic

in node_helper

		this.ps = new Psc({
			setId: this.name,
			verbose: true,
			microphone: this.config.microphone
		});

is where it connects to the mic

and lmtool is the thing I think is in python