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To be injail and not know what you re there for, emotionally, you re a wreck. does this technology work as well as the company claims? and what role can it play in the american fight against gun crime? you can tell a lot from a waveform. how loud, how high, what frequency. train a computer algorithm and it can, in theory, work out what it might be listening to. the s the idea behind shotspotter that a computer can detect a gunshot and then tell the police the location it was fired from. gun fire. small mics are placed ....
Ginger is one of the analysts. wavy alarm sounds. oh, there s an incident right there. that s the sound we hear when an incident comes up, yep. when the computer thinks a gunshot has been fired, herjob is to review it and decide whether to dispatch police officers, all in under 60 seconds. this is a waveform which if you do any kind of audio work, you ve seen this before. so we re listening to that, we re looking how far does the sound travel, we re looking to seeli how many sensors picked it up, if the sensor has made a directional pattern because, in theory, a gunshot can only travel in one direction. to me it doesn t look like it s gunfire, but that s why we also listen to it. wavy alarm sounds. possible gunfire pops. that sounds like gunfire to me. in this case, i think you might be right we ve got a directional sensor pattern. i m going to call it gunfire. i m going to submit it and i m going to send it over to our agency, and you can look up there, itjust popped up right now. s ....
You can tell a lot from a waveform. how loud, how high, what frequency. train a computer algorithm and it can, in theory, work out what it might be listening to. the s the idea behind shotspotter that a computer can detect a gunshot and then tell the police the location it was fired from. gun fire. small mics are placed around a neighbourhood. when a gunshot is fired the mics pick up the sound, how long it took to reach the sensors and from which direction, effectively triangulating the shot. shotspotter was founded on the west coast of america in the mid 90s, in that cradle of american innovation, silicon valley. ....
The company has agreed to give the bbc access to show me how the system works and why they believe it s needed. what makes the system so compelling, we believe, is the fact that in many communities that suffer from ongoing persistent gunfire, people for a lot of reasons don t call 911 which means there s no police response which means that communities begin to distrust police. you can see we ve got some proximal incidents right here. this is shotspotter s incident review centre. ginger is one of the analysts. wavy alarm sounds. 0h, there s an incident right there. that s the sound we hear when an incident comes up, yep. when the computer thinks a gunshot has been fired, herjob is to review it and decide whether to dispatch police officers, all in under 60 seconds. this is a waveform which if you do any kind of audio work, you ve seen this before. so we re listening to that, we re looking how far does the sound travel, we re looking to seeli how many sensors picked it up, if the sensor ....
Shotspotter is the reason why we were able to apprehend him and stop that killing spree. but some have questioned how often the company gets it right. so, is that like a typical type of call out from shotspotter? yeah, we look, don t find anything, can t find any evidence. and when things go wrong, what are the consequences? to be injail and not know what you re there for, emotionally, you re a wreck. does this technology work as well as the company claims? and what role can it play in the american fight against gun crime? you can tell a lot from a waveform. ....