Podcast Distribution Format Requirements: What Spotify, Apple, and YouTube Actually Accept in 2026

So you've recorded your podcast episode. It sounds great. Now you need to export it and upload it to... well, everywhere. But here's the problem: Spotify says one thing, Apple Podcasts says another, and YouTube has its own weird requirements.

And if you search for "best podcast audio format," you get a thousand conflicting answers. Some say MP3 is outdated. Others swear by AAC. A few audiophiles insist on FLAC (for a podcast. Really.).

Look, I'm going to save you hours of Googling. Here's what the major platforms actually accept in 2026, what they recommend, and what you should actually use.

The Universal Answer: MP3 at 128 kbps (Stereo) or 64 kbps (Mono)

Before we get into platform-specific details, here's the truth: MP3 is still king. Not because it's the best format technically (it's not), but because it works everywhere, file sizes are manageable, and nobody can tell the difference when you're listening to people talk.

If you export your podcast as MP3 at 128 kbps stereo (or 64 kbps mono), it will work on every single platform. Apple Podcasts? Yes. Spotify? Yes. YouTube Music? Yep. RSS feeds? Of course. Random obscure podcast apps? Absolutely.

That's it. You can stop reading now if you want. But if you're curious about what else is supported (or why some platforms are weirdly specific), keep going.

Spotify's Requirements

Spotify accepts:

• MP3 — 96-320 kbps, mono or stereo
• M4A (AAC) — 96-320 kbps, mono or stereo
• OGG Vorbis — Any bitrate (though this is rare)

Spotify recommends MP3 at 128 kbps stereo or 64 kbps mono. And honestly? That's what you should use. Spotify transcodes everything on their end anyway, so uploading a 320 kbps file doesn't make your podcast sound better — it just makes your upload slower.

Fun fact: Spotify uses OGG Vorbis internally for streaming. But you don't need to worry about that. Upload MP3 and let them handle the conversion.

Apple Podcasts' Requirements

Apple Podcasts accepts:

• MP3 — Recommended: 128 kbps stereo, 64 kbps mono
• M4A (AAC) — 64-320 kbps

Apple's official documentation says "MP3 or AAC," but let's be real: they prefer AAC because it's their baby (developed by Apple, used in iTunes, etc.). But here's the thing — for podcast speech content, there's no meaningful difference between MP3 and AAC at the same bitrate.

So unless you're already exporting AAC for some other reason, just stick with MP3. It's simpler, more compatible, and sounds identical for voice.

YouTube and YouTube Music

YouTube is weird because it's primarily a video platform. But if you're uploading podcast episodes as video (static image + audio), here's what you need to know:

• Audio codec: AAC-LC (preferred) or MP3
• Bitrate: 128 kbps stereo minimum, 192 kbps recommended
• Sample rate: 48 kHz (not 44.1 kHz like music CDs)

YouTube transcodes everything anyway, so you're not getting "YouTube-quality audio" by uploading at 320 kbps. Save yourself the bandwidth and upload at 128-192 kbps.

And here's the annoying part: YouTube expects 48 kHz sample rate, not the standard 44.1 kHz used by music. Most podcast editors default to 44.1 kHz, which YouTube will accept but then resample (and potentially introduce artifacts). If you're serious about YouTube distribution, export at 48 kHz from the start.

Google Podcasts (RIP) and Other RSS-Based Platforms

Google Podcasts shut down in 2024, but the RSS-based podcast ecosystem is still alive. Most podcast apps (Overcast, Pocket Casts, Castro, etc.) pull from RSS feeds, and they all support:

• MP3 — Any bitrate, but 128 kbps is standard
• M4A (AAC) — Supported but less common

RSS feeds don't enforce format requirements the way Spotify or Apple do. You could upload a WAV file if you wanted to. But please don't. Your listeners' data plans will hate you.

Stereo vs Mono: Does It Matter?

Here's a question nobody asks but should: do you actually need stereo?

If your podcast is just you talking into a mic, or two people having a conversation, mono is completely fine. In fact, it's better — file size is cut in half, and there's zero audible difference for speech.

Stereo makes sense if:

• You have music in your intro/outro
• You use sound effects with spatial positioning
• You're doing something fancy with binaural audio

But for 90% of podcasts? Mono is perfectly fine. And when you're uploading hundreds of episodes over time, cutting file sizes in half adds up.

Bitrate: How High Should You Go?

There's this persistent myth that higher bitrate = better quality. And technically, yes — but only up to a point.

For speech content:

• 64 kbps mono — Perfectly clear for single-voice podcasts
• 128 kbps stereo — Industry standard, sounds great, widely compatible
• 192 kbps stereo — Overkill for speech, but fine if you have music-heavy content
• 256+ kbps stereo — Completely unnecessary. You're wasting storage and bandwidth for zero audible improvement.

Here's the thing: podcast platforms don't host your files for free. Most podcast hosting services (Buzzsprout, Transistor, Libsyn) charge based on storage or bandwidth. Uploading 320 kbps files when 128 kbps sounds identical is literally paying more for nothing.

Sample Rate: 44.1 kHz or 48 kHz?

Most audio editors default to 44.1 kHz (the CD standard). And for most platforms, that's fine.

But YouTube prefers 48 kHz. If you're uploading to YouTube, either:

• Export at 48 kHz from the start (if YouTube is a priority)
• Export at 44.1 kHz and let YouTube resample it (if you don't care about minor artifacts)

For everyone else? 44.1 kHz is totally fine.

What About Loudness Normalization?

Spotify, Apple Podcasts, and YouTube all normalize loudness. That means they automatically adjust the volume of your podcast to match other content on their platform.

The standard targets are:

• Spotify: -14 LUFS
• Apple Podcasts: -16 LUFS
• YouTube: -14 LUFS

If you export your podcast louder than that, the platform will turn it down. If you export quieter, they'll turn it up (but this can introduce noise).

The best approach: export at -16 LUFS. It's safe for all platforms, won't get squashed, and ensures consistent volume across episodes.

So What Should You Actually Do?

Here's my recommendation for 99% of podcasters:

• Format: MP3
• Bitrate: 128 kbps (stereo) or 64 kbps (mono)
• Sample rate: 44.1 kHz (or 48 kHz if YouTube is a priority)
• Loudness: -16 LUFS
• Channels: Mono if solo/interview, stereo if music/sound effects

This setup works on every platform, sounds professional, keeps file sizes reasonable, and doesn't waste your hosting bandwidth.

And if you need to convert audio files to different formats (because maybe you exported WAV by mistake and need MP3), KokoConvert's audio converter handles it in seconds. No software install, no hassle.

Same goes for compressing audio files if your export came out way too large — drag, drop, done.

Final Thoughts

Look, podcast audio formats are not rocket science. The industry settled on MP3 years ago, and despite newer formats being technically better, nothing has replaced it in practical terms.

So stop overthinking it. Export MP3 at 128 kbps (or 64 kbps mono), make sure your loudness is around -16 LUFS, and spend your energy on making good content instead of obsessing over bitrates.

Your listeners care about what you're saying, not whether you exported at 192 kbps vs 128 kbps. Trust me — they cannot tell the difference.