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Obsidian Notes Read Aloud: Available as a Podcast Feed

Transform your Obsidian notes into an engaging audio podcast feed with this powerful n8n workflow. This automation takes your written Obsidian notes, converts them into spoken audio using OpenAI's text-to-speech capabilities, uploads the audio to Cloudinary for hosting, and then creates a dynamic RSS feed that can be subscribed to like any podcast. When you trigger the "Webhook GET Note" with your Obsidian content, the workflow simultaneously sends the text to two OpenAI nodes: one to generate the audio and another to potentially summarize or process the text further. The generated audio is then given a unique name, uploaded to Cloudinary, and a link is sent back to Obsidian via "Send Audio to Obsidian." Concurrently, details about your new audio note are appended to a Google Sheet using "Append Item to Google Sheet." When the "Webhook GET Podcast Feed" is triggered, the workflow retrieves all your audio note data from Google Sheets, combines it with manually entered podcast metadata, and then constructs a complete RSS feed using "Write RSS Feed," which is returned to the requesting webhook via "Return Podcast Feed to Webhook." This workflow is ideal for content creators, educators, or anyone who wants to repurpose their written content into an accessible audio format, saving significant time and effort compared to manual recording and feed management. It solves the problem of making written knowledge more consumable on the go, expanding your audience reach and enhancing content accessibility without requiring complex audio editing or hosting infrastructure.

23 nodeswebhook trigger197 views0 copiesOther
Google SheetsOpenAI

Workflow JSON

{"id": "f9X48gqgIUwyseMM", "meta": {"instanceId": "d47f3738b860eed937a1b18d7345fa2c65cf4b4957554e29477cb064a7039870"}, "name": "Obsidian Notes Read Aloud: Available as a Podcast Feed", "tags": [], "nodes": [{"id": "a44b5cb3-6c9f-4227-a45f-a21765ea120c", "name": "OpenAI1", "type": "@n8n/n8n-nodes-langchain.openAi", "position": [-660, -180], "parameters": {"input": "={{ $json.body.content }}", "options": {"response_format": "mp3"}, "resource": "audio"}, "credentials": {"openAiApi": {"id": "", "name": "[Your openAiApi]"}}, "typeVersion": 1.7}, {"id": "9ca589b6-f1c7-44a9-8ff7-4abb979a71c3", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [-1200, -400], "parameters": {"width": 440, "height": 540, "content": "## Send Notes to Webhook\n**Setup:**\n- Install [Post Webhook Plugin](https://github.com/Masterb1234/obsidian-post-webhook/) in Obsidian\n- Enter n8n Webhook URL and name in plugin settings\n\n**Usage:**\n- Select text or use full note\n- Open Command Palette (Ctrl+P)\n- Choose 'Send Note/Selection to [name]'\n- Audio file appears in Podcast Feed and note"}, "typeVersion": 1}, {"id": "3ea132e5-8c67-4140-a9b2-607ea256e90f", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [-1200, 240], "parameters": {"width": 440, "height": 440, "content": "## Generic Podcast Feed Module\nA reusable module for any 'X-to-Podcast' workflow. Generates standard RSS feed from:\n- Source data (Google Sheets)\n- Podcast metadata\n\nCompatible with all major podcast platforms (Apple, Google, Spotify, etc.).\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"}, "typeVersion": 1}, {"id": "92d6a6df-0e4e-423b-8447-dce10d5373ae", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [-720, -400], "parameters": {"color": 3, "width": 440, "height": 540, "content": "## Create Audio and Write Description\nOpenAI TTS converts notes to audio while the messaging model generates concise descriptions for podcast apps."}, "typeVersion": 1}, {"id": "b950b0ab-e27e-473d-9891-d5551a44ed17", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [800, -400], "parameters": {"color": 4, "width": 380, "height": 540, "content": "## Append Row to Google Sheets\nSaves essential podcast parameters (<title>, <link>, <description>, <duration>) to Google Sheets for Feed generation."}, "typeVersion": 1}, {"id": "02fda37f-77a5-47f5-81bc-b59486704386", "name": "Webhook GET Note", "type": "n8n-nodes-base.webhook", "position": [-1040, -120], "webhookId": "64fac784-9b98-4bbc-aaf2-dd45763d3362", "parameters": {"path": "64fac784-9b98-4bbc-aaf2-dd45763d3362", "options": {}, "httpMethod": "POST", "responseMode": "responseNode"}, "typeVersion": 2}, {"id": "845d04ea-d221-4034-b5e1-75061e5f351c", "name": "Webhook GET Podcast Feed", "type": "n8n-nodes-base.webhook", "position": [-1040, 460], "webhookId": "2f0a6706-54da-4b89-91f4-5e147b393bd8", "parameters": {"path": "2f0a6706-54da-4b89-91f4-5e147b393bd8h", "options": {}, "responseMode": "responseNode"}, "typeVersion": 2}, {"id": "ce6d766c-89e6-4d62-9d48-d6715a28592f", "name": "Upload Audio to Cloudinary", "type": "n8n-nodes-base.httpRequest", "position": [-220, -120], "parameters": {"url": "https://api.cloudinary.com/v1_1/CLOUDINARY_ENV/upload", "method": "POST", "options": {}, "sendBody": true, "contentType": "multipart-form-data", "sendHeaders": true, "authentication": "genericCredentialType", "bodyParameters": {"parameters": [{"name": "file", "parameterType": "formBinaryData", "inputDataFieldName": "data"}, {"name": "upload_preset", "value": "rb_preset"}, {"name": "resource_type", "value": "auto"}]}, "genericAuthType": "httpCustomAuth", "headerParameters": {"parameters": [{"name": "Content-Type", "value": "multipart/form-data"}]}}, "credentials": {"httpCustomAuth": {"id": "", "name": "[Your httpCustomAuth]"}}, "typeVersion": 4.1}, {"id": "1f86c18d-8197-4671-9c41-726a02108c4e", "name": "OpenAI", "type": "@n8n/n8n-nodes-langchain.openAi", "position": [-660, -20], "parameters": {"modelId": {"__rl": true, "mode": "list", "value": "gpt-4o-mini", "cachedResultName": "GPT-4O-MINI"}, "options": {}, "messages": {"values": [{"content": "={{ $json.body.content }}"}, {"role": "system", "content": "Based on the user input text, write a concise and engaging description of 50\u2013150 characters. Highlight the key idea or takeaway while making it compelling and easy to understand. Avoid unnecessary details or repetition."}]}}, "credentials": {"openAiApi": {"id": "", "name": "[Your openAiApi]"}}, "typeVersion": 1.7}, {"id": "0942959c-2231-4055-b196-4483c210a39d", "name": "Merge", "type": "n8n-nodes-base.merge", "position": [320, -40], "parameters": {}, "typeVersion": 3}, {"id": "ee7ba6a7-f8dd-4863-bf5c-6ec8eb2329ea", "name": "Aggregate", "type": "n8n-nodes-base.aggregate", "position": [460, -180], "parameters": {"options": {}, "aggregate": "aggregateAllItemData"}, "typeVersion": 1}, {"id": "f403d045-08e9-400e-9988-c8f55a5aa609", "name": "Give Audio Unique Name", "type": "n8n-nodes-base.set", "position": [-460, -180], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "97f0fe66-7ddf-4eff-a3cf-3104e74dbfac", "name": "fileName", "type": "string", "value": "={{ $('Webhook GET Note').item.json.body.timestamp }}.mp3"}]}, "includeOtherFields": true}, "typeVersion": 3.4}, {"id": "2dbff0f5-f359-43b7-b0de-4b9d657c69c0", "name": "Send Audio to Obsidian", "type": "n8n-nodes-base.respondToWebhook", "position": [80, -180], "parameters": {"options": {"responseHeaders": {"entries": [{"name": "content-type", "value": "=audio/mpeg"}]}}, "respondWith": "binary", "responseDataSource": "set"}, "typeVersion": 1}, {"id": "ede7c038-b210-4b29-8557-7530ea4cf63e", "name": "Rename Fields", "type": "n8n-nodes-base.set", "position": [620, -180], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "3a7d01f4-7448-40e0-9f46-e6edea971b72", "name": "title", "type": "string", "value": "={{ $('Webhook GET Note').item.json.body.filename.split('.md')[0] }}"}, {"id": "f49446df-3975-4133-a964-ebdcc0d904dd", "name": "link", "type": "string", "value": "={{ $json.data[0].url }}"}, {"id": "8be5df35-ec79-45b1-94c3-306d58100fd2", "name": "description", "type": "string", "value": "={{ $json.data[1].message.content }}"}, {"id": "231d0ee2-13d2-4a28-a19c-adc4920130fd", "name": "date", "type": "string", "value": "={{ $json.data[0].created_at }}"}, {"id": "cd2748b3-999a-4514-9b31-49b7d045101f", "name": "duration", "type": "number", "value": "={{ $json.data[0].duration }}"}]}}, "typeVersion": 3.4}, {"id": "10a35ef9-ab86-4010-9fcc-3cd765384e93", "name": "Append Item to Google Sheet", "type": "n8n-nodes-base.googleSheets", "position": [940, -180], "parameters": {"columns": {"value": {}, "schema": [{"id": "title", "type": "string", "display": true, "removed": false, "required": false, "displayName": "title", "defaultMatch": false, "canBeUsedToMatch": true}, {"id": "link", "type": "string", "display": true, "removed": false, "required": false, "displayName": "link", "defaultMatch": false, "canBeUsedToMatch": true}, {"id": "description", "type": "string", "display": true, "removed": false, "required": false, "displayName": "description", "defaultMatch": false, "canBeUsedToMatch": true}, {"id": "date", "type": "string", "display": true, "removed": false, "required": false, "displayName": "date", "defaultMatch": false, "canBeUsedToMatch": true}, {"id": "duration", "type": "string", "display": true, "removed": false, "required": false, "displayName": "duration", "defaultMatch": false, "canBeUsedToMatch": true}], "mappingMode": "autoMapInputData", "matchingColumns": []}, "options": {}, "operation": "append", "sheetName": {"__rl": true, "mode": "list", "value": "gid=0", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA/edit#gid=0", "cachedResultName": "Blad1"}, "documentId": {"__rl": true, "mode": "list", "value": "1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA/edit?usp=drivesdk", "cachedResultName": "obsidian-n8n"}}, "credentials": {"googleSheetsOAuth2Api": {"id": "", "name": "[Your googleSheetsOAuth2Api]"}}, "typeVersion": 4.5}, {"id": "62dd3faf-22db-40f9-892c-2cf9368a9496", "name": "Get Items from Google Sheets", "type": "n8n-nodes-base.googleSheets", "position": [-660, 460], "parameters": {"options": {}, "sheetName": {"__rl": true, "mode": "list", "value": "gid=0", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA/edit#gid=0", "cachedResultName": "Blad1"}, "documentId": {"__rl": true, "mode": "list", "value": "1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA", "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1F73a7uuzLAq916w2JFndumv0JhnCAvOTN-Cn_OOP3uA/edit?usp=drivesdk", "cachedResultName": "obsidian-n8n"}}, "credentials": {"googleSheetsOAuth2Api": {"id": "", "name": "[Your googleSheetsOAuth2Api]"}}, "typeVersion": 4.5}, {"id": "7b465ed0-d2cc-4862-b0e6-4bd6215f3945", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [-720, 320], "parameters": {"color": 3, "width": 440, "height": 360, "content": "## Podcast Feed Configuration\n- Static: Configure podcast metadata in 'Edit Fields'\n- Dynamic: Episodes automatically pulled from Google Sheets"}, "typeVersion": 1}, {"id": "1608ce65-bf1f-4dce-b4c7-b85b72ecb8c7", "name": "Write RSS Feed", "type": "n8n-nodes-base.code", "position": [-120, 460], "parameters": {"jsCode": "// Variables from a separate edit node\nconst baseUrl = $node[\"Manually Enter Other Data for Podcast Feed\"].data.baseUrl; \nconst podcastTitle = $node[\"Manually Enter Other Data for Podcast Feed\"].data.podcastTitle;\nconst podcastDescription = $node[\"Manually Enter Other Data for Podcast Feed\"].data.podcastDescription;\nconst authorName = $node[\"Manually Enter Other Data for Podcast Feed\"].data.authorName;\nconst ownerName = $node[\"Manually Enter Other Data for Podcast Feed\"].data.ownerName;\nconst ownerEmail = $node[\"Manually Enter Other Data for Podcast Feed\"].data.ownerEmail;\nconst coverImageUrl = $node[\"Manually Enter Other Data for Podcast Feed\"].data.coverImageUrl;\nconst language = $node[\"Manually Enter Other Data for Podcast Feed\"].data.language || 'en-us';\nconst explicitContent = $node[\"Manually Enter Other Data for Podcast Feed\"].data.explicitContent || false;\nconst itunesCategory = $node[\"Manually Enter Other Data for Podcast Feed\"].data.itunesCategory;\nconst webhookUrl = $node[\"Webhook GET Podcast Feed\"].data.webhookUrl\n\n// Get the input items\nconst inputItems = items;\n\n// Function to format date to RFC 822 format\nfunction formatDate(dateString) {\n return new Date(dateString || new Date()).toUTCString();\n}\n\n// Function to convert duration from seconds to HH:MM:SS\nfunction formatDuration(seconds = 0) {\n const hours = Math.floor(seconds / 3600);\n const minutes = Math.floor((seconds % 3600) / 60);\n const remainingSeconds = Math.floor(seconds % 60);\n\n const minutesStr = minutes.toString().padStart(2, '0');\n const secondsStr = remainingSeconds.toString().padStart(2, '0');\n \n if (hours > 0) {\n return `${hours}:${minutesStr}:${secondsStr}`;\n }\n return `${minutesStr}:${secondsStr}`;\n}\n\n// Function to safely sanitize text\nfunction sanitizeText(text) {\n if (text === undefined || text === null) {\n return '';\n }\n return String(text)\n .replace(/&/g, '&amp;')\n .replace(/</g, '&lt;')\n .replace(/>/g, '&gt;')\n .replace(/\"/g, '&quot;')\n .replace(/'/g, '&apos;');\n}\n\n// Generate the RSS feed header\nlet rssFeed = `<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<rss xmlns:itunes=\"http://www.itunes.com/dtds/podcast-1.0.dtd\" \n xmlns:content=\"http://purl.org/rss/1.0/modules/content/\"\n xmlns:atom=\"http://www.w3.org/2005/Atom\"\n version=\"2.0\">\n <channel>\n <title>${sanitizeText(podcastTitle)}</title>\n <description>${sanitizeText(podcastDescription)}</description>\n <link>${sanitizeText(baseUrl)}</link>\n <atom:link href=\"${sanitizeText(webhookUrl)}\" rel=\"self\" type=\"application/rss+xml\"/>\n <language>${sanitizeText(language)}</language>\n <copyright>\u00a9 ${new Date().getFullYear()} ${sanitizeText(authorName)}</copyright>\n <lastBuildDate>${new Date().toUTCString()}</lastBuildDate>\n <itunes:author>${sanitizeText(authorName)}</itunes:author>\n <itunes:owner>\n <itunes:name>${sanitizeText(ownerName)}</itunes:name>\n <itunes:email>${sanitizeText(ownerEmail)}</itunes:email>\n </itunes:owner>\n <itunes:image href=\"${sanitizeText(coverImageUrl)}\"/>\n <itunes:category text=\"${sanitizeText(itunesCategory)}\"/>\n <itunes:explicit>${explicitContent}</itunes:explicit>\n <itunes:type>episodic</itunes:type>\\n`;\n\n// Generate items\nfor (const item of inputItems) {\n const json = item.json;\n \n // Extract values from the json object\n const title = sanitizeText(json.title);\n const description = sanitizeText(json.description);\n const link = sanitizeText(json.link);\n const date = json.date;\n const duration = json.duration;\n \n // Assign episode and season numbers dynamically based on row_number\n const episodeNumber = json.row_number; // Use row_number for the episode number\n const seasonNumber = 1; // You can adjust this logic if your episodes span multiple seasons\n\n rssFeed += ` <item>\n <title>${title}</title>\n <description>${description}</description>\n <link>${link}</link>\n <guid isPermaLink=\"false\">${link}</guid>\n <pubDate>${formatDate(date)}</pubDate>\n <enclosure \n url=\"${link}\"\n length=\"0\"\n type=\"audio/mpeg\"/>\n <itunes:duration>${formatDuration(duration)}</itunes:duration>\n <itunes:summary>${description}</itunes:summary>\n <itunes:episodeType>full</itunes:episodeType>\n <itunes:episode>${episodeNumber}</itunes:episode>\n <itunes:season>${seasonNumber}</itunes:season>\n <itunes:explicit>${explicitContent}</itunes:explicit>\n <content:encoded>\n <![CDATA[\n <p>${description}</p>\n ]]>\n </content:encoded>\n </item>\\n`;\n}\n\n// Close the RSS feed\nrssFeed += ` </channel>\n</rss>`;\n\n// Return the complete RSS feed\nreturn [{\n json: {\n rssFeed\n }\n}];\n"}, "typeVersion": 2}, {"id": "c8c7fbfc-c408-438e-af7e-5c384cfce4a5", "name": "Sticky Note6", "type": "n8n-nodes-base.stickyNote", "position": [-240, 320], "parameters": {"color": 5, "width": 340, "height": 360, "content": "## Write Podcast Feed\nGenerates RSS feed XML from collected data."}, "typeVersion": 1}, {"id": "b5962e24-49eb-423a-ab8c-cb04daf5e1a0", "name": "Sticky Note7", "type": "n8n-nodes-base.stickyNote", "position": [-240, -400], "parameters": {"color": 5, "width": 460, "height": 540, "content": "## Audio to Cloudinary and Obsidian\nCloudinary stores audio files and provides duration metadata for podcast feed.\n\nSetup:\n- Create Custom Auth credentials\n- Set CLOUDINARY_ENV to your environment"}, "typeVersion": 1}, {"id": "e0f18eda-13fc-4771-8ce0-11574a4469ad", "name": "Return Podcast Feed to Webhook", "type": "n8n-nodes-base.respondToWebhook", "position": [200, 460], "parameters": {"options": {"responseHeaders": {"entries": [{"name": "Content-Type", "value": "application/xml"}]}}, "respondWith": "text", "responseBody": "={{ $json.rssFeed }}"}, "typeVersion": 1.1}, {"id": "d3afe3f0-79e4-48c1-a0d6-356b462156c7", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [260, -400], "parameters": {"color": 6, "width": 500, "height": 540, "content": "## Prepare Relevant Data\nConsolidates and formats data for Google Sheets storage."}, "typeVersion": 1}, {"id": "f77ff10c-e4e3-4761-b4db-4c42d5831f5c", "name": "Manually Enter Other Data for Podcast Feed", "type": "n8n-nodes-base.set", "position": [-460, 460], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "05d1c4f7-ebe7-4df8-925b-0e0d5539f172", "name": "baseUrl", "type": "string", "value": "https://n8n.io"}, {"id": "e8c6845e-887f-49e9-8336-ca2cb2a2fd29", "name": "podcastTitle", "type": "string", "value": "My Notes to Podcast"}, {"id": "bf2948ed-cffa-4d3f-9bab-5fb008d83b4c", "name": "podcastDescription", "type": "string", "value": "My Notes Read Aloud"}, {"id": "f5008697-3e52-4ae2-94da-c059b60a6de9", "name": "authorName", "type": "string", "value": "Your Name"}, {"id": "6595bf45-e054-4e18-ade9-13e38e6efedb", "name": "ownerName", "type": "string", "value": "Owner Name"}, {"id": "b21efe1c-e5b5-4bb3-bf07-a52859c7a607", "name": "ownerEmail", "type": "string", "value": "owner@email.com"}, {"id": "3f0b090c-0b5e-41cb-9841-05b7b8f83126", "name": "coverImageUrl", "type": "string", "value": "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRPDcMnpgGkzIFxDpDaHEIFVg_D6nVG5Z0pPA&s"}, {"id": "1fb27792-1f2b-4a9a-a353-a64e31bb4747", "name": "language", "type": "string", "value": "en-us"}, {"id": "7c3d868a-f3c0-4fd0-8909-e4172f8a4b18", "name": "explicitContent", "type": "string", "value": "false"}, {"id": "6aa041b4-554c-4540-889c-e37a314d5842", "name": "itunesCategory", "type": "string", "value": "Technology"}]}, "includeOtherFields": true}, "typeVersion": 3.4}], "active": true, "pinData": {}, "settings": {"executionOrder": "v1"}, "versionId": "4eb1c404-4e77-45ea-b413-4b79d8f40b1d", "connections": {"Merge": {"main": [[{"node": "Aggregate", "type": "main", "index": 0}]]}, "OpenAI": {"main": [[{"node": "Merge", "type": "main", "index": 1}]]}, "OpenAI1": {"main": [[{"node": "Give Audio Unique Name", "type": "main", "index": 0}]]}, "Aggregate": {"main": [[{"node": "Rename Fields", "type": "main", "index": 0}]]}, "Rename Fields": {"main": [[{"node": "Append Item to Google Sheet", "type": "main", "index": 0}]]}, "Write RSS Feed": {"main": [[{"node": "Return Podcast Feed to Webhook", "type": "main", "index": 0}]]}, "Webhook GET Note": {"main": [[{"node": "OpenAI1", "type": "main", "index": 0}, {"node": "OpenAI", "type": "main", "index": 0}]]}, "Give Audio Unique Name": {"main": [[{"node": "Upload Audio to Cloudinary", "type": "main", "index": 0}, {"node": "Send Audio to Obsidian", "type": "main", "index": 0}]]}, "Webhook GET Podcast Feed": {"main": [[{"node": "Get Items from Google Sheets", "type": "main", "index": 0}]]}, "Upload Audio to Cloudinary": {"main": [[{"node": "Merge", "type": "main", "index": 0}]]}, "Append Item to Google Sheet": {"main": [[]]}, "Get Items from Google Sheets": {"main": [[{"node": "Manually Enter Other Data for Podcast Feed", "type": "main", "index": 0}]]}, "Manually Enter Other Data for Podcast Feed": {"main": [[{"node": "Write RSS Feed", "type": "main", "index": 0}]]}}}

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