Best Audio Interfaces for Church Livestream

This is the whole argument in one table. The differences here are not subtle improvements, they are the difference between a stream people watch and a stream people apologise for. Note where the money sits: the jump from unusable to good costs $86.90, and everything after that is refinement.

A house mix is built for a room that already contains sound. The drums are audible acoustically, the guitar amplifier is in the room, the congregation is singing, and the operator only amplifies what needs help. Send that mix to a stream and the viewer at home hears the vocals and the keys clearly and almost nothing of the drums or the congregation, because those were never in the console to begin with.

The answer is a separate mix built on an aux or a matrix output, which is why a four input interface earns its extra money: the stream gets its own balance and its own level, independent of what happens in the room. It usually means adding a little more of the acoustic sources, more congregation if you have room microphones, and a little less of whatever was loudest in the building. Mono is also perfectly acceptable, and frequently better, because most viewers are on a phone speaker. The whole approach is set out in how to mix for livestream, and the physical chain in church livestream audio setup.

Hum on a stream is nearly always a ground loop, created when the console and the streaming computer are on different electrical circuits and the audio cable joins their grounds. An audio interface is not an isolator and will not fix it. The proper fixes are a transformer isolated feed, a direct box with a ground lift in the path, or getting the console and the streaming computer onto the same circuit, which is a question for electrical planning for church AV rather than for a settings menu. Never solve it by lifting a mains earth pin, which is dangerous and illegal.

The other recurring faults are simpler. Nobody is monitoring the stream audio, so a muted channel or a dead feed goes unnoticed for twenty minutes: put a headphone on the return output, or a phone on the actual stream at the back of the room. Levels set once and never checked, so a quieter service clips or disappears. And the sample rate mismatch between the interface and the streaming software, which produces slow drift between audio and video across a long service. Set both to 48 kHz and leave them. For what the rest of the chain should look like, see the starter livestream system.