Bandcamp’s Upload Formats

Now that the iTunes Store is getting ready to accept high fidelity audio, all the way up to 192khz/24-bit files, it’s interesting to look at what the upload requirements are for Bandcamp.

Here’s what you can upload:

  • lossless WAV, AIFF and FLAC files
  • 16 and 24-bit samples
  • 44.1, 48, 88.2, 96, 176.4 and 192kHz sample rates
  • stereo and mono

We don’t do any audio processing to your uploaded files except whatever’s necessary to fit into the download format. For example, for MP3 downloads the audio is resampled to 44.1kHz. FLAC downloads on the other hand are bit-for-bit identical to the audio you upload, all the way to 24/192. When your fans get their mitts on this they’ll bounce around like 6-year-olds hopped up on Pixy Stix!

I wonder if Bandcamp’s AAC encoder is as good as what Apple uses to encode and convert high sample rates for iTunes.

Say, for example, you uploaded a 5-track EP with each track at 192/24. According to Bandcamp, if you download the FLAC file you’d get 192/24 FLAC files. But everything I’ve ever downloaded (I always download AAC from Bandcamp) is at 44/16.

Which is fine, but it would be interesting to hear directly from Bandcamp on if their encode from source files is any different than what Apple is doing.