Noriwal AlMa Jr This workflow corresponds to n8n.io template #6077 — we link there as the canonical source.
The workflow JSON
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{
"id": "OzNqz9EZH75jPYRW",
"name": "Transcriber Bot 0.0.1",
"tags": [],
"nodes": [
{
"id": "1b8771ac-adc3-49a6-af4a-dec3de69ba9d",
"name": "Webhook1",
"type": "n8n-nodes-base.webhook",
"position": [
-780,
-240
],
"parameters": {
"path": "seucaminho/MESSAGES_UPSERT",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 2
},
{
"id": "8c8ee493-15bb-4d96-840c-7441cbe2c795",
"name": "Edit Fields1",
"type": "n8n-nodes-base.set",
"position": [
-560,
-240
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "numero",
"type": "string",
"value": "={{ $json.body.data.key.remoteJid.split(\"@\").first() }}"
},
{
"name": "nome",
"type": "string",
"value": "={{ $json.body.data.pushName }}"
},
{
"name": "mensagem",
"type": "string",
"value": "={{ $json.body.data.message.conversation }}"
},
{
"name": "tipo_msg",
"type": "string",
"value": "={{ $json.body.data.messageType }}"
},
{
"name": "audio",
"type": "string",
"value": "={{ $json.body.data.message.base64 }}"
},
{
"name": "body.data.key.fromMe",
"type": "boolean",
"value": "={{ $json.body.data.key.fromMe }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "29f7ed16-aab2-44b3-9e2c-ad02e467e1f5",
"name": "Switch1",
"type": "n8n-nodes-base.switch",
"position": [
-340,
-240
],
"parameters": {
"rules": {
"values": [
{
"conditions": {
"combinator": "and",
"conditions": [
{
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.tipo_msg }}",
"rightValue": "audioMessage"
}
]
}
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "b0a39ac9-77d4-4ed1-b087-8dd8e8a43474",
"name": "Convert to File1",
"type": "n8n-nodes-base.convertToFile",
"position": [
-120,
-240
],
"parameters": {
"options": {
"fileName": "audio.mp3",
"mimeType": "audio/mpeg"
},
"operation": "toBinary",
"sourceProperty": "audio"
},
"typeVersion": 1.1
},
{
"id": "6df6c4d1-936a-436b-9196-4bb37f4c3c33",
"name": "HTTP Request1",
"type": "n8n-nodes-base.httpRequest",
"position": [
100,
-240
],
"parameters": {
"url": "https://api.groq.com/openai/v1/audio/transcriptions",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "multipart-form-data",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "file",
"parameterType": "formBinaryData",
"inputDataFieldName": "data"
},
{
"name": "model",
"value": "whisper-large-v3"
},
{
"name": "response_format",
"value": "json"
},
{
"name": "temperature",
"value": "0"
},
{
"name": "language",
"value": "pt"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "=Bearer {{ $env.GROQ_API_KEY }}"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "af110489-ec08-4c1a-b83f-8cc6dec9d3f4",
"name": "Evolution API",
"type": "n8n-nodes-evolution-api.evolutionApi",
"position": [
320,
-240
],
"parameters": {
"resource": "messages-api",
"remoteJid": "={{ $('Webhook1').item.json.body.data.key.remoteJid }}",
"messageText": "=*Mensagem transcrita automaticamente.*/n{{ $('HTTP Request1').item.json.text }}",
"instanceName": "={{ $('Webhook1').item.json.body.instance }}",
"options_message": {
"quoted": {
"messageQuoted": {
"messageId": "={{ $('Webhook1').item.json.body.data.key.id }}"
}
}
}
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "3cb67cf9-e9b6-42fb-83f7-830aef49279e",
"connections": {
"Switch1": {
"main": [
[
{
"node": "Convert to File1",
"type": "main",
"index": 0
}
]
]
},
"Webhook1": {
"main": [
[
{
"node": "Edit Fields1",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields1": {
"main": [
[
{
"node": "Switch1",
"type": "main",
"index": 0
}
]
]
},
"HTTP Request1": {
"main": [
[
{
"node": "Evolution API",
"type": "main",
"index": 0
}
]
]
},
"Convert to File1": {
"main": [
[
{
"node": "HTTP Request1",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Automatically transcribe WhatsApp audio messages to text using AI-powered speech recognition. This workflow receives audio messages via webhook, processes them through Groq's Whisper API, and replies with the transcribed text in the same conversation. Accessibility: Help users…
Source: https://n8n.io/workflows/6077/ — original creator credit. Request a take-down →
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