Forensic Audio: How sound solves crimes

Twenty Thousand Hertz

Dallas Taylor

Music, Design, Arts, Music Commentary

4.8 • 4.1K Ratings

🗓️ 13 June 2017

⏱️ 20 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

You might not realize it, but audio can be just as crucial to solving a case than video or eyewitness testimony. But understanding how to interpret audio evidence, or having the ability to enhance it to a point of intelligibility, requires highly-specialized training and expensive software. Meet Kent Gibson, one of the country's leading forensic audio experts, who's done audio analysis for the FBI, the Secret Service, and the Department of Homeland Security, among many others, and get his take on audio evidence from the missing Malaysian Airlines flight, the Trayvon Martin case, and Mel Gibson's infamous domestic dispute. 20K is made out of the studios of Defacto Sound and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn. Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook. Consider supporting the show at donate.20k.org Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/forensicaudio Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	It's a new year and many of us are committing to exercising and eating healthier.
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0:24.1	Zocococ.com slash Hertz.
0:30.6	From DeFacto Sound, you're listening to 20,000 Hertz.
0:37.0	The stories behind the world's most
0:38.6	recognizable and interesting sounds. I'm Dallas Taylor. This is the story of how audio
0:44.2	can be key to solving a crime.
0:46.3	Malaysian 370 standby and Malaysian 6 is created to Frankfurt via Agosa Alpha departure,
0:53.3	6,000 feet squad 2106.
1:01.0	Forensic audio is the use of audio evidence in the investigation of a crime or for use in a court of law.
1:07.0	And the clip you just heard was from Malaysia Airlines Flight 370, the one that went
1:12.3	missing in March 2014, somewhere near the Southern Indian Ocean. Investigators found some
1:18.1	debris in January 2017 that they have identified as being part of the plane, but to this day,
1:24.1	no one really knows what happened. When these final recordings between the pilots of the missing Malaysian jet
1:29.8	and their air traffic controllers were released
1:31.9	and appeared to have been edited, NBC News turned to Kent Gibson for analysis.
1:36.7	I'm a forensic audio and video examiner,
1:39.8	and I've been in the business about 30 years.
1:42.5	I do authentication, which is, is this recording edited or inauthentic in any way?
	...

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