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Voice Transcription

How It Works

Voice transcription automates Bible verse projection during preaching. The system listens to the preacher in real-time and automatically projects the verses mentioned.

  1. The microphone captures the preacher's audio.
  2. Soniox transcribes speech to text in real-time.
  3. AI detects Bible references in the transcribed text (e.g., "let's open John chapter 3 verse 16").
  4. Navigation automatically goes to the detected verse.

Typical detection latency: less than 2 seconds between the spoken mention and verse projection.

Supported Service

lixPresentr uses Soniox as its primary voice transcription service. Soniox offers high-quality speech recognition with low latency, supporting many languages.

Connection required: Soniox is a cloud service. An internet connection is required for voice transcription, even with the desktop app. A Pro or Cloud subscription is required.

Setup

Configure voice transcription in the application settings:

  1. Open Settings > Audio.
  2. Select the desired microphone from the list of detected devices.
  3. Adjust the VAD (Voice Activity Detection) sensitivity if needed. This parameter controls the voice detection threshold to filter ambient noise.

Usage

Two ways to activate transcription:

  • Mic button — Click the mic icon in the sidebar to start/stop transcription.
  • Auto button — Activates transcription with automatic projection of detected verses.

The current transcription displays in real-time in the Transcription panel. Two operating modes are available:

  • Semi-automatic — Detected references appear as suggestions. The operator validates each suggestion before projection. Recommended for beginners.
  • Automatic — Detected verses are projected immediately without manual validation. Ideal for experienced operators.

Contextual Commands

In addition to Bible references, the system recognizes voice commands for navigation:

  • "next verse" — Go to the next verse.
  • "next chapter" — Go to the next chapter.
  • "repeat" — Re-project the current verse.

Tips for Better Results

  • Microphone — A lavalier (lapel) microphone is ideal. A USB desk microphone is also acceptable. Avoid the computer's built-in microphone.
  • Ambient noise — Reduce background noise as much as possible. Background music or ventilation can affect accuracy.
  • Speech — Best results are obtained with full references ("John chapter 3 verse 16"), clear pronunciation, and a short pause after the reference.

Tip: Run a few minutes of testing before the service to verify the microphone is properly detected and transcription works correctly in your environment.