You’ve got a stack of polished episodes ready. Your audience waits. But uploading one by one drags on forever. I faced that too. Transistor.fm shines for hosting, yet it lacks a simple button for dumping multiple new files at once. So I use imports and API tricks instead. Here’s how I get batches live fast.
Prepare Your Podcast Files First
I start with clean files. MP3 format rules, at 44100 Hz and 128 kb/s bitrate. That keeps quality high without huge sizes. I name them simply: “episode-001-title.mp3”. No spaces or odd characters trip uploads.
Metadata matters next. I embed title, description, and artwork in each file with tools like MP3Tag. Episode art hits 3000×3000 pixels in JPEG. Square crops best. I batch-edit these in one go on my Mac.
Check publish dates too. I note them in a spreadsheet: episode number, title, notes, schedule. This avoids duplicates later.
Organized prep saves headaches. Files sit ready, like soldiers in formation.
Upload Episodes One at a Time
No native transistor bulk upload exists for fresh episodes. I repeat this process. It beats nothing.
Log into transistor.fm. Head to “My Shows”. Pick your podcast. Click “New Episode”.
Drag your MP3 in. Fill title, description, art. Set category and publish date. Hit publish. RSS updates auto-push to Spotify, Apple.
I do five a day this way. Schedule ahead for consistency. Listeners see drops on time.
For teams, invite admins or members. They upload too. Analytics-only roles can’t.
This method works small scale. But batches need more.
Import a Full Podcast for Quick Bulk
Switching hosts? Import pulls everything at once. Closest to bulk for existing shows.
Click “Add Show”. Choose “Import an Existing Show”. Paste the old RSS feed URL from Buzzsprout or Libsyn.
Wait. Email arrives when done. Time scales with episodes: 50 might take hours.
Grab the new RSS. Update directories like Apple Podcasts Connect. Old host? Delete or redirect.
Details here from Transistor’s import guide.
I migrated 100 episodes this way last month. Seamless shift, no lost data.
Limits apply. Only full feeds, not picks. New files? No dice.
Script Bulk Uploads with the API
True bulk needs code. Transistor’s API lets me upload multiples via script.
First, authorize uploads. GET /v1/episodes/authorize_upload. Get a PUT URL.
Script PUTs each MP3 there. Note the audio_url. POST to create episodes with titles, dates, metadata.
I use Python or Node.js. Loop my file list. One script handles 20 files.
See the API upload details.
This powers my workflow. Hours shrink to minutes. Test small first.
Paid plan required. Free trials limit shows.
Fix Common Upload Glitches
Uploads fail? MP3 check first. Wrong format or big size stalls. Compress if needed. Stable Wi-Fi helps.
Import hangs? Patience. Many episodes drag. No email in 24 hours? Support emails fast.
Episodes vanish from apps? Republish. RSS lags 24 hours. Resubmit feeds.
Duplicates pop? Clean old host before import. Check titles match.
Team blocks? Upgrade roles to admin.
Stuck overall? Transistor support responds quick. Real people, not bots.
I log these fixes in notes. Patterns emerge fast.
For clip automation after uploads, check my Transistor Opus workflow.
Conclusion
Bulk uploads on Transistor boil down to prep, imports, and API smarts. No one-click magic, but these steps scale my shows. I push dozens live weekly now. Listeners stay fed. Try the import for your backlog. Your feed strengthens right away.
