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The content guidelines for sharing lessons in the library state that audio should be saved at 64 Kbps. Can it be set to a higher bitrate or is that a minimum? 64 Kbps seems kind of low. Does it matter if the audio is uploaded to the library or if an audio URL is used instead?
I ask because Librivox provides audio files at 128 Kbps and using audio URLs seems to work without issue. I have some lessons I've been working on and I might as well share them since they are public domain.