[HOTWORD:LPCM16] arecord: main:828 audio open error: Device or resource busy

M4gicD00bz

Error:

2020-04-26 15:48:17.583] [LOG]    [HOTWORD] Detector starts listening.
[2020-04-26 15:48:17.701] [LOG]    [HOTWORD:LPCM16] arecord: main:828: 
[2020-04-26 15:48:17.703] [LOG]    [HOTWORD:LPCM16] audio open error: Device or resource busy

[2020-04-26 15:48:17.706] [LOG]    [HOTWORD] Final Result: { detected: false }
[2020-04-26 15:48:17.724] [LOG]    [HOTWORD] begins.
[2020-04-26 15:48:17.726] [LOG]    [HOTWORD] Detector starts listening.
[2020-04-26 15:48:17.808] [LOG]    [HOTWORD:LPCM16] arecord: main:828: audio open error: Device or resource busy

arecord -I:

@raspberrypi:~ $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: sndrpigooglevoi [snd_rpi_googlevoicehat_soundcar], device 0: Google voiceHAT SoundCard HiFi voicehat-codec-0 [Google voiceHAT SoundCard HiFi voicehat-codec-0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: Snowball [Blue Snowball], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

aplay -I:

pi@raspberrypi:~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpigooglevoi [snd_rpi_googlevoicehat_soundcar], device 0: Google voiceHAT SoundCard HiFi voicehat-codec-0 [Google voiceHAT SoundCard HiFi voicehat-codec-0]
  Subdevices: 0/1

.asoundrc:

pcm.!default{
  type asym
  playback.pcm{
    type hw
    card 0
  }
  capture.pcm{
    type plug
    slave.pcm "hw:1,0"
  }
}

ctl.!default{
  type hw
  card 0
}

config.js:

/* Magic Mirror Config Sample
 *
 * By Michael Teeuw http://michaelteeuw.nl
 * MIT Licensed.
 *
 * For more information how you can configurate this file
 * See https://github.com/MichMich/MagicMirror#configuration
 *
 */

var config = {
	address: "localhost", // Address to listen on, can be:
	                      // - "localhost", "127.0.0.1", "::1" to listen on loopback interface
	                      // - another specific IPv4/6 to listen on a specific interface
	                      // - "", "0.0.0.0", "::" to listen on any interface
	                      // Default, when address config is left out, is "localhost"
	port: 8080,
	ipWhitelist: ["127.0.0.1", "::ffff:127.0.0.1", "::1"], // Set [] to allow all IP addresses
	                                                       // or add a specific IPv4 of 192.168.1.5 :
	                                                       // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.1.5"],
	                                                       // or IPv4 range of 192.168.3.0 --> 192.168.3.15 use CIDR format :
	                                                       // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.3.0/28"],

	language: "en",
	timeFormat: 24,
	units: "metric",
	// serverOnly:  true/false/"local" ,
			     // local for armv6l processors, default 
			     //   starts serveronly and then starts chrome browser
			     // false, default for all  NON-armv6l devices
			     // true, force serveronly mode, because you want to.. no UI on this device
	
	modules: [
		{
			module: "alert",
		},
		{
			module: "updatenotification",
			position: "top_bar"
		},
		{
			module: "clock",
			position: "top_left"
		},
		{
			module: "calendar",
			header: "US Holidays",
			position: "top_left",
			config: {
				calendars: [
					{
						symbol: "calendar-check",
						url: "webcal://www.calendarlabs.com/ical-calendar/ics/76/US_Holidays.ics"					}
				]
			}
		},
		{
			module: "compliments",
			position: "lower_third"
		},
		{
			module: "currentweather",
			position: "top_right",
			config: {
				location: "New York",
				locationID: "",  //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "YOUR_OPENWEATHER_API_KEY"
			}
		},
		{
			module: "weatherforecast",
			position: "top_right",
			header: "Weather Forecast",
			config: {
				location: "New York",
				locationID: "5128581",  //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "YOUR_OPENWEATHER_API_KEY"
			}
		},
		{
			module: "newsfeed",
			position: "bottom_bar",
			config: {
				feeds: [
					{
						title: "New York Times",
						url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
					}
				],
				showSourceTitle: true,
				showPublishDate: true,
				broadcastNewsFeeds: true,
				broadcastNewsUpdates: true
			}
		},
		{
			module: "MMM-Hotword",
			position: "top_right",
			config: {
					chimeOnFinish: null,
					mic: {
							recordProgram: "arecord",
							device: "plughw:0"
					},
					models: [
							{
								hotwords    : "smart_mirror",
								file        : "smart_mirror.umdl",
								sensitivity : "0.5",
							},
					],
					commands: {
							"smart_mirror": {
									notificationExec: {
											notification: "ASSISTANT_ACTIVATE",
											payload: (detected, afterRecord) => {
													return {profile:"default"}
											}
									},
									restart:false,
									afterRecordLimit:0
							}
					}
			}
		},
		{
		module: "MMM-AssistantMk2",
		position: "top_right",
		config: {
				deviceLocation: {
						coordinates: {
								latitude: 37.5650168, // -90.0 - +90.0
								longitude: 126.8491231, // -180.0 - +180.0
						},
				},
				record: {
						recordProgram : "arecord",  
						device        : "plughw:0",
				},
				notifications: {
						ASSISTANT_ACTIVATED: "HOTWORD_PAUSE",
						ASSISTANT_DEACTIVATED: "HOTWORD_RESUME",
				},
				useWelcomeMessage: "brief today",
				profiles: {
						"default" : {
								lang: "en-US"
						}
				},
		}
		},
	]   
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}

A Former User

what is the device used for recording mic ?

sdetweil

@M4gicD00bz said in [HOTWORD:LPCM16] arecord: main:828 audio open error: Device or resource busy:

  					device: "plughw:0"

but the asoundrc says hw:1,0 (which should be correct unless u are using the google voicehat, and have installed the software to enable it)

should be device: “plughw:1,0”

A Former User

@sdetweil : that’s why i asked this question ;)

sdetweil

@Bugsounet it would never have been “plughw:0”, maybe “plughw:0,0”

A Former User

not necessary, it should be plughw:0, plughw:1 or null (for default setting)

after, maybe one module use already the mic …
in this case arecord return an error (device busy)

M4gicD00bz

I’ve tried every variation. I’ve scrapped everything. Starting from scratch again. I guess I’ll come back if still an issue.