The workflow JSON
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{
"name": "12-voz-transcricao",
"nodes": [
{
"parameters": {},
"name": "Receber \u00c1udio",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
200,
300
],
"path": "transcricao-audio",
"httpMethod": "POST",
"responseMode": "onReceived"
},
{
"parameters": {
"url": "https://api.evolution.com.br/download",
"method": "GET",
"jsonParameters": true,
"queryParametersJson": "={ \"file\": \"{{ $json.audio_url }}\" }",
"options": {}
},
"name": "Baixar \u00c1udio",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
400,
300
]
},
{
"parameters": {
"requestMethod": "POST",
"url": "https://api.openai.com/v1/audio/transcriptions",
"authentication": "headerAuth",
"sendBinaryData": true,
"binaryPropertyName": "data",
"options": {
"headers": [
{
"name": "Authorization",
"value": "Bearer {{ $env.OPENAI_API_KEY }}"
}
]
},
"bodyContentType": "multipart-form-data",
"bodyParameters": [
{
"name": "model",
"value": "whisper-1"
},
{
"name": "file",
"value": "={{ $binary.data.fileName }}"
}
]
},
"name": "Transcrever com Whisper",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
600,
300
]
},
{
"parameters": {
"functionCode": "return [{ json: { texto: $json.text } }];"
},
"name": "Preparar Texto",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
800,
300
]
},
{
"parameters": {
"functionCode": "// Aqui voc\u00ea conecta ao fluxo de IA principal\nreturn [{ json: { pergunta: $json.texto, telefone: $json.telefone } }];"
},
"name": "Encaminhar para IA",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1000,
300
]
}
],
"connections": {
"Receber \u00c1udio": {
"main": [
[
{
"node": "Baixar \u00c1udio",
"type": "main",
"index": 0
}
]
]
},
"Baixar \u00c1udio": {
"main": [
[
{
"node": "Transcrever com Whisper",
"type": "main",
"index": 0
}
]
]
},
"Transcrever com Whisper": {
"main": [
[
{
"node": "Preparar Texto",
"type": "main",
"index": 0
}
]
]
},
"Preparar Texto": {
"main": [
[
{
"node": "Encaminhar para IA",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
12-voz-transcricao. Uses httpRequest. Webhook trigger; 5 nodes.
Source: https://github.com/siqueiramael/n8nmael/blob/37891b4f9f88a502c970e49790fb43c327d2333b/Fluxos/12-voz-transcricao.json — original creator credit. Request a take-down →
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