Multi-Angle L-R Delay Analysis of Six Phone Recordings Reveals Two Spatially Separated Acoustic Sources

This video presents a forensic stereo audio analysis built from six separate cell phone recordings captured from different positions around an outdoor venue during a single acoustic event. Each recording is shown alongside a synchronized analysis overlay displaying left and right channel waveforms, inter-channel cross-correlation delay traces, full spectrograms, and left-minus-right difference spectrograms, all scrolling in real time alongside the corresponding footage. By comparing the timing and characteristics of the sound as captured across all six vantage points, the analysis concludes that the acoustic evidence indicates two spatially separated sources of sound during the event, rather than a single point of origin. The video presents this finding as a piece of technical evidence relevant to ongoing questions about the exact circumstances of the event, relying on signal-processing methods rather than narrative description to support its conclusion.