"My stream’s analog audio inputs sound okay on my website, BoxCast.tv, or YouTube, but sound terrible on mobile devices and/or Facebook Live!"
This happens when the positive and negative sides of a balanced, mono source are connected to the L/R (white/red) channels of the BoxCaster’s analog audio inputs.
If you’re not sure what the difference between balanced and unbalanced audio is, check out this blog post.
The BoxCaster has stereo, unbalanced RCA jack inputs (meaning that there are two unbalanced RCA audio inputs; white/left and red/right). It isn't designed to take in balanced signals. Splitting a balanced signal into the left and right inputs of the BoxCaster may result in lack of audio due to phase cancellation when the stream is summed to mono on some devices or platforms.
How do I fix it?
Try unplugging the red side and see if it helps. This may solve your problem immediately.
If you're getting your audio from a soundboard, try to use an RCA-to-RCA cable if at all possible. If you're converting from an XLR to RCA, make sure that you're only converting to a single RCA plug. If you’re using a cable or adapter that converts from a single XLR to both red and white RCA plugs, this is likely the issue. XLR only carries a single channel of audio — it can't be broken out to stereo without adverse audio issues arising. If you're using XLR outputs from your board, be sure to use one XLR per channel for a true stereo output.