Generate audio from text using OpenAI - text-to-speech Workflow
Generate high-quality audio from text inputs automatically with this efficient n8n workflow. This automation connects a Webhook trigger to OpenAI's powerful text-to-speech capabilities, then responds to the initial webhook with the generated audio file. Businesses can leverage this to create dynamic voiceovers for marketing content, provide accessible audio versions of articles or reports, or even develop interactive voice responses for customer service applications. By automating the conversion of text to spoken audio, this workflow eliminates manual processing, significantly reduces the time and effort required to produce audio content, and allows for rapid, on-demand audio generation without needing specialized audio production skills or software.
Workflow JSON
{"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": "", "name": "[Your openAiApi]"}}, "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 Import This Workflow
- 1Copy the workflow JSON above using the Copy Workflow JSON button.
- 2Open your n8n instance and go to Workflows.
- 3Click Import from JSON and paste the copied workflow.
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