Knowledge Base

Problem

User wants to apply FaceReader's Voice Expression Intensity analysis to a multi-subject video but cannot find the option or it does not function as expected.

Details

FaceReader's Voice Analysis Module is not compatible with multi-subject analysis mode or Baby FaceReader. When multiple people speak simultaneously in a video, measurements (pitch, loudness, speech rate) reflect the combined audio and cannot be attributed to individual speakers. There is no speaker identification feature.

Solution

1. Understand that the Voice Analysis Module cannot be combined with multi-subject analysis or Baby FaceReader — this is a software limitation, not a configuration error.
2. For multi-subject recordings, voice analysis results are not available per individual.
3. If voice analysis is essential, analyze single-subject recordings where only one person speaks at a time.
4. If this capability is critical to your research, contact Noldus Sales to discuss alternative solutions.