Hello All,
I'm using this node along with the @kevingodell/node-red-ffmpeg node to create a compatible audio stream from my mic to feed into it. The issue is that I'm not sure I'm configuring the wake word setup correctly. I wanted to ask if there is anyone here who has had experience using this node? (especially preparing the wake-word audio files). I tried to record a couple of clear samples of my saying "Hey Computer" but it doesn't seem to recognize them.
The node is based on the node-personal-wakeword library. Does anyone know if there are any tools to help make the wakeword audio samples?
Here's the portion of my flow that I made for testing this node:
[
{
"id": "f38c430b8da6b413",
"type": "wake-word",
"z": "c5d098062cd1c674",
"wakeword": "78bc3731a6c83c3e",
"threshold": "0.04",
"averaging": false,
"inputProp": "payload",
"outputProp": "payload",
"controlProp": "control",
"passthrough": true,
"name": "",
"x": 600,
"y": 100,
"wires": [
[
"569e849b6e27d696"
],
[]
]
},
{
"id": "9ae7bd2136af36a9",
"type": "ffmpeg",
"z": "c5d098062cd1c674",
"name": "Microphone Stream",
"outputs": 2,
"cmdPath": "ffmpeg",
"cmdArgs": "[\"-f\",\"dshow\",\"-i\",\"audio=Microphone (Realtek(R) Audio)\",\"-map\",\"0\",\"-acodec\",\"pcm_s16le\",\"-ac\",\"1\",\"-ar\",\"16000\",\"-f\",\"wav\",\"pipe:1\"]",
"cmdOutputs": 1,
"killSignal": "SIGTERM",
"x": 370,
"y": 100,
"wires": [
[],
[
"f38c430b8da6b413"
]
]
},
{
"id": "f3434123ecca60d9",
"type": "inject",
"z": "c5d098062cd1c674",
"name": "Start",
"props": [
{
"p": "action.command",
"v": "start",
"vt": "str"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 110,
"y": 100,
"wires": [
[
"9ae7bd2136af36a9"
]
]
},
{
"id": "6abef099c6a87941",
"type": "inject",
"z": "c5d098062cd1c674",
"name": "Stop",
"props": [
{
"p": "action.command",
"v": "stop",
"vt": "str"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 110,
"y": 140,
"wires": [
[
"9ae7bd2136af36a9"
]
]
},
{
"id": "9f956efc08de4580",
"type": "udp in",
"z": "c5d098062cd1c674",
"name": "",
"iface": "",
"port": "5850",
"ipv": "udp4",
"multicast": "false",
"group": "",
"datatype": "buffer",
"x": 340,
"y": 320,
"wires": [
[
"5d4249895ae582b9"
]
]
},
{
"id": "5d4249895ae582b9",
"type": "function",
"z": "c5d098062cd1c674",
"name": "Append Data",
"func": "function appendBuffers(buffer1, buffer2) {\n // Check if the destination buffer is empty.\n if (!buffer1.length) {\n return Buffer.from(buffer2);\n }\n\n // Check if the source buffer is empty.\n if (!buffer2.length) {\n return Buffer.from(buffer1);\n }\n\n // Concatenate the buffers into a new buffer.\n const concatenatedBuffer = Buffer.concat([buffer1, buffer2]);\n\n return concatenatedBuffer;\n}\n\nlet dataBuffer = context.get(\"dataBuffer\") || Buffer.from([]);\nlet resultBuffer = appendBuffers(dataBuffer, msg.payload);\n\nif (resultBuffer.length >= 32767 * 4) {\n msg.payload = resultBuffer;\n context.set(\"dataBuffer\", Buffer.from([]));\n return msg;\n} else {\n context.set(\"dataBuffer\", resultBuffer);\n}",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 510,
"y": 320,
"wires": [
[
"e00611ad7b5f1d06"
]
]
},
{
"id": "569e849b6e27d696",
"type": "debug",
"z": "c5d098062cd1c674",
"name": "debug 34",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 780,
"y": 100,
"wires": []
},
{
"id": "60a0c66471142669",
"type": "inject",
"z": "c5d098062cd1c674",
"name": "listen",
"props": [
{
"p": "control",
"v": "listen",
"vt": "str"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 410,
"y": 160,
"wires": [
[
"f38c430b8da6b413"
]
]
},
{
"id": "d34a11495c92ad9d",
"type": "inject",
"z": "c5d098062cd1c674",
"name": "stop",
"props": [
{
"p": "control",
"v": "stop",
"vt": "str"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 410,
"y": 200,
"wires": [
[
"f38c430b8da6b413"
]
]
},
{
"id": "e00611ad7b5f1d06",
"type": "debug",
"z": "c5d098062cd1c674",
"name": "debug 35",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 700,
"y": 320,
"wires": []
},
{
"id": "78bc3731a6c83c3e",
"type": "wakeword-config",
"name": "",
"files": [
"C:\\\\Users\\\\Jason\\\\.node-red\\\\wake-words"
]
}
]
Any feedback and/or pointers greatly appreciated!
