We recommend you mix and master your audio files before uploading them to Simplecast. If encoded as an MP3 file, 128kbps or less, we will not re-encode or transcode or change the audio in any way.

Programs like GarageBand, Logic, Audacity, Adobe Audition, or even Auphonic.com are able to master and export MP3s.

When you export an MP3, your program will likely ask you about bit rate. Don't worry if you don't know what they means, here's what we recommend:

64kbps/mono MP3

Great for spoken-word podcasts, especially those with long episodes. Quality will be good and downloads will be quick due to a smaller file size. Recommended by many professional podcasters.

96kbps/mono MP3

Also a great option for spoken-word podcasts, though downloads will be slower. Audio quality will be improved.

96kbps/joint stereo MP3

A good option if your show has music and you'd like a stereo mix. Make sure you select joint stereo so your file size will be similar to 96kbps/mono.

128kbps/stereo MP3

A great option for shows with music if you need a stereo mix. Your music will sound better, but the file will take longer to stream or download because a higher bit rate means a bigger file.

If you still have questions, this article should help: What Bit Rate Should I Export My Podcast Episode As?

Embedding ID3 Tags

It's always good practice to embed episode information directly into your MP3's ID3 tags. This will ensure that episodes display correctly in all podcast player apps including Apple Podcasts. Apple Podcasts is capable of embedding ID3 information into MP3s, including podcast artwork. We recommend adding an artist name, album name, track name, publishing year, a genre of 'Podcast', and artwork. Learn more about tagging here

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