The three audio options
Most churches test live translation with one of three inputs. They all work, but they do not produce the same result.
- Laptop microphone: fine for a bedroom test, weakest in a live room
- Phone near the preacher: better than a laptop in some spaces, still vulnerable to room noise
- Sound desk feed through USB: best weekly setup because it captures the speaker microphone directly
The recommended setup
- 1Take an aux or direct output from the sound deskUse a feed that contains the speaking microphones. If possible, avoid a mix that is dominated by instruments or room microphones.
- 2Run it into a USB audio interfaceA simple interface is enough. The goal is a clean, stable signal into the laptop running Voco.
- 3Set gain conservativelyAvoid clipping. A slightly quieter clean signal is better than a loud distorted one.
- 4Run a 60-second spoken testHave someone speak at normal sermon pace, then check the live transcript before the service starts.
Common audio mistakes
- Using a laptop mic at the back of the room and expecting sermon-quality transcription
- Letting the speaker wander off microphone
- Feeding a full music mix instead of speech-focused audio
- Setting input gain so hot that consonants distort
- Not testing panel microphones, guest handhelds, or lectern mics before the service
What to do with spontaneous moments
If someone speaks from the room without a microphone, translation will be weaker. The fix is pastoral as much as technical: repeat important comments into a microphone, keep testimonies on handheld mics, and train leaders to treat the mic as part of accessibility.