Figure 2.

Performance of the algorithm under varying circumstances. (A) Intra‐device repeatability. Each individual line represents a different session with the same device. (B) Inter‐device repeatability. Each individual line represents a different session with a different device of the same type. (C) Influence of device distance from the audio source. (D) Influence of physical barrier or ambient background noise. In each of the panels, the light‐blue line is the reference from the audio file [Color figure can be viewed at wileyonlinelibrary.com]