About this recipe
Recipe Template
{
"id": "OVSyGmI6YFviPu8Q",
"meta": {
"instanceId": "fb261afc5089eae952e09babdadd9983000b3d863639802f6ded8c5be2e40067",
"templateCredsSetupCompleted": true
},
"name": "Generate audio from text using OpenAI - text-to-speech Workflow",
"tags": [],
"nodes": [
{
"id": "c40966a4-1709-4998-ae95-b067ce3496c9",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1320,
200
],
"parameters": {
"options": [],
"respondWith": "binary"
},
"typeVersion": 1.1
},
{
"id": "c4e57bb6-79a4-4b26-a179-73e30d681521",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
280,
-140
],
"parameters": {
"width": 501.55,
"height": 493.060000000001,
"content": "This `Webhook` node triggers the workflow when it receives a POST request.\n\n### 1. Test Mode:\n* Use the test webhook URL\n* Click the `Test workflow` button on the canvas. (In test mode, the webhook only works for one call after you click this button)\n\n### 1. Production Mode:\n* The workflow must be active for a **Production URL** to run successfully.\n* You can activate the workflow using the toggle in the top-right of the editor.\n* Note that unlike test URL calls, production URL calls aren't shown on the canvas (only in the executions list)."
},
"typeVersion": 1
},
{
"id": "1364a4b6-2651-4b38-b335-c36783a25f12",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
825,
60
],
"parameters": {
"color": 4,
"width": 388.35000000000025,
"height": 292.71000000000043,
"content": "### Configure the OpenAI node with your API key:\nIf you haven't connected your OpenAI credentials in n8n yet, log in to your OpenAI account to get your API Key. Then, open the OpenAI node, click `Create New Credentials` and connect with the **OpenAI API**.\n"
},
"typeVersion": 1
},
{
"id": "ba755814-75e6-4e16-b3a6-50cf4fc06350",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
480,
200
],
"webhookId": "28feeb38-ef2d-4a2e-bd7c-25a524068e25",
"parameters": {
"path": "generate_audio",
"options": [],
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "ac46df50-cb1f-484c-8edf-8131192ba464",
"name": "OpenAI",
"type": "@n8n\/n8n-nodes-langchain.openAi",
"position": [
960,
200
],
"parameters": {
"input": "={{ $json.body.text_to_convert }}",
"voice": "fable",
"options": [],
"resource": "audio"
},
"credentials": {
"openAiApi": {
"id": "2Cije3KX7OIVwn9B",
"name": "n8n OpenAI"
}
},
"typeVersion": 1.3
}
],
"active": false,
"pinData": [],
"settings": {
"executionOrder": "v1"
},
"versionId": "84f1b893-e1a3-40c3-83b0-7cd637b353c4",
"connections": {
"OpenAI": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "OpenAI",
"type": "main",
"index": 0
}
]
]
}
}
}How to Use an n8n Template
Create a New Workflow
Click "New Workflow" in your n8n dashboard to get started.
Copy & Paste Template
First, copy this template:
Click here to copy the JSON
.
Then, in n8n, click the three dots (···) → "Import from file" and paste the JSON code.
Customize the Nodes
Go through each node in the workflow to update inputs like spreadsheet IDs, email addresses, or message content. Adjust field mappings to match your data.
Grant Access
For nodes that connect to external apps (like Google Sheets or Slack), you'll need to grant access. Connect your accounts using OAuth or an API key and save the credentials in the node.
Test It
Run the workflow by clicking "Execute Node" for each step or "Run Once" for the whole thing. Check the right sidebar to inspect data and debug any errors (they'll show up in red).
Activate Workflow
Once everything works as expected, click the "Activate" toggle to turn your workflow on. You're all set!