BLE Streaming Audio Jump-Scare Device - DC To Daylight
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- Опубликовано: 26 июн 2024
- Recently on DC to Daylight, we've been playing around with Bluetooth Low Energy, and in this application-based video we'll look at how to put BLE streaming audio to use as a Halloween jump-scare device. Derek will show how he used CasterSoundboard running on Linux to trigger some spooky sound effects, as well as how he integrated a class-D amplifier alongside a LiFePO4 battery to create a truly wireless solution for scaring trick-or-treaters. Now, the question is, can we actually scare anyone? Let's find out in this episode!
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Shop - Nordic Semiconductor Bluetooth Low Energy audio development kit: bit.ly/3Y0fuGi
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#0:00 Welcome to DC to Daylight
#1:05 Overview
#2:34 BLE Audio
#6:09 The Set Up
#6:50 Jump-Scare!
#8:04 Give Your Feedback
#bluetooth #bluetoothaudio #bluetoothconnection #halloween #halloween2022 #linux #classdamplifier 
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Cool project!
On a different, but related topic. Bluetooth headphones aren't long-range. 2.4GHz headphones can be, but they are rare and the good ones are very expensive. A maker project I'd like to see: a USB wifi transmitter getting the audio stream via USB (requiring software on the PC) or, more simply, a USB-powered wifi transmitter getting the audio from the headphone jack transmitting to a battery powered wifi receiver into which any headphone can be plugged. This using a 16-bit (at least) ADC plus a popular, cheap, and small wifi-capable compute module at the TX end, and the same compute module with 16-bit DAC and audio amplifier at the RX end.
This sounds like an interesting project.. in my experience classic bluetooth has a pretty decent range, BLE doesn't come close however - at least with the usual PCB antennas.. but 2.4GHz and a dish would put you into an entirely different class. Cooking something up from scratch at 2.4GHz requires a next-level RF engineers brain (I can get up to about 500MHz before parasitics take over the show - and my knowledge dries up). Does anyone make a module for something like this? I've never seen such a device. -Derek
by sheer conicidence i`m working on something along those lines...but its currently frying my brain..a lot of challenges to overcome until christmas.
@@MAYERMAKES that sounds like a lot to do before Christmas.hit me up if you need a second set of eyes!
Walky talk project next ....please!!!! I love your videos!!
The best I saw this year was an audio trip like yours in conjunction with a leaf blower (a tube taped on to the nozzle made out of plastic sheeting for movement and additional noise) powered via a relay on the same trigger.
It even scared me!
That's brilliant!!!! You're giving me ideas for next year. -Derek
Just a thought, Multiple speakers from different directions, staggered timings, echos, More than one thing playing at a time. Or A bass speaker in one spot, a mid range in another, a horn or tweeter in another, playing different sounds, growl in the bass and a screech in the horn. Or maybe just the multiple locations of the same sound becomes strange and alarming b/c its not normal to hear that way?
Goode ideas to try. Next time I’m going to take my powered sub and satellites out there!
@@AmRadPodcast The idea is to confuse the senses, this being auditory, changing the pitch, volume, location, frequency, or location of speakers.
Do kids these days seem much less susceptible to being scared? Maybe they are desensitized by constantly hearing scary sounds as they walk through Walgreens or Walmart before Halloween?
I think there's some validity to this. The conditions could have been improved though... 1. I had to swap out my dim green patio light for a bright light that would work with the webcam, 2. I could have gotten a better reaction by scaring younger kids, which I didn't feel comfortable doing, 3. Some kind of thing jumping out would have really sold it. One thing that I really couldn't capture was how loud it was - I was pleasantly surprised how loud that little class-D amp was. To make a long story short, I totally agree they may be desensitized. I'll just need to ramp it up with falling spiders on strings and a skeleton that jumps out; Rick in comments above mentioned a leaf blower. I feel a Halloween special is in order. -Derek