Another Electronic Det Can Example
#41
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The fact that you can get a usable recording indicates that most things are basically working. Does your headset incorporate an amplifier? When you listen to the recordings, are you using the same computer and headset?
#48
This thread coming back got me to thinking about if anyone has used a non electronic version of det cans? Copper lug or a piece of copper tubing then to a hose like air compressor hose into the car. The gray foam water pipe insulation for additional sound deadening from outside sources. To a stethoscope (like a doctor uses). I just wondered if anybody has tried both. I made an electronic version and this version and felt that I could hear the beginnings of knock better with the manual version. It was more difficult to install but the sound transferred into the stethoscope really well.
#52
I've found the following to make things a bit easier when using this setup:
1. Enable sound during recording in Audacity by going to Transport - > Software Playthrough. Make sure there is a check mark on the left.
2. A really good example of what to expect with knock: Engine Knock Detection and Sensing - YouTube
1. Enable sound during recording in Audacity by going to Transport - > Software Playthrough. Make sure there is a check mark on the left.
2. A really good example of what to expect with knock: Engine Knock Detection and Sensing - YouTube
for the audio example
#53
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Bump because I'm going to build one too, but have a question.
First, solder the microphone to the stereo plug. The white microphone wire goes to the plug tip. The red microphone wire goes to the plug's middle ring. The bare shielded microphone wire goes to the plug's base and shield. See Sound card microphone for more information on wiring a microphone plug for a PC sound card.
The link you provide shows the tip and ring get connected together to one of the microphone wires, and the second microphone wire gets connected to the shield and ground. So which is it?
Maybe this will become more obvious when I find the microphone; the tiny RadioShack in the mall didn't have jackshit.
First, solder the microphone to the stereo plug. The white microphone wire goes to the plug tip. The red microphone wire goes to the plug's middle ring. The bare shielded microphone wire goes to the plug's base and shield. See Sound card microphone for more information on wiring a microphone plug for a PC sound card.
Maybe this will become more obvious when I find the microphone; the tiny RadioShack in the mall didn't have jackshit.
#54
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You'll have to look at the packaging for the microphone. On the ones I can find around here, the microphone had the 3 wires (red, white and bare) and the packaging described what each wire's function was.
RadioShack is a shell of what it used to be. They are just another wannabe cell phone retailer these days and may not last much longer. There's always Mouser.
RadioShack is a shell of what it used to be. They are just another wannabe cell phone retailer these days and may not last much longer. There's always Mouser.
#55
Just a bump and some questions because I just bought a set of those noise canceling headphones (for range use) that also have an audio in jack.
Basically I got the above in black, for $49 at Home Depot. Such a deal.
I am wanting to use these as my headset for listening when not plugged into a laptop. I saw "personal listener" described above but it seems like the versions I am finding on ebay tend to be the ones that are designed as a serious assistive device and are quite pricey.
Anyone have any search terms or sample listings I can check out? Is creating a DIY mic power box something that would be easy to do?
Amazon.com: 3M Peltor Tactical 6-S Slim Line Electronic Headset with Audio Input Jack, Olive Green: Home Improvement
Basically I got the above in black, for $49 at Home Depot. Such a deal.
I am wanting to use these as my headset for listening when not plugged into a laptop. I saw "personal listener" described above but it seems like the versions I am finding on ebay tend to be the ones that are designed as a serious assistive device and are quite pricey.
Anyone have any search terms or sample listings I can check out? Is creating a DIY mic power box something that would be easy to do?
#56
Just a bump and some questions because I just bought a set of those noise canceling headphones (for range use) that also have an audio in jack.
Amazon.com: 3M Peltor Tactical 6-S Slim Line Electronic Headset with Audio Input Jack, Olive Green: Home Improvement
Basically I got the above in black, for $49 at Home Depot. Such a deal.
I am wanting to use these as my headset for listening when not plugged into a laptop. I saw "personal listener" described above but it seems like the versions I am finding on ebay tend to be the ones that are designed as a serious assistive device and are quite pricey.
Anyone have any search terms or sample listings I can check out? Is creating a DIY mic power box something that would be easy to do?
Amazon.com: 3M Peltor Tactical 6-S Slim Line Electronic Headset with Audio Input Jack, Olive Green: Home Improvement
Basically I got the above in black, for $49 at Home Depot. Such a deal.
I am wanting to use these as my headset for listening when not plugged into a laptop. I saw "personal listener" described above but it seems like the versions I am finding on ebay tend to be the ones that are designed as a serious assistive device and are quite pricey.
Anyone have any search terms or sample listings I can check out? Is creating a DIY mic power box something that would be easy to do?
#58
Personal Sound Amplifier
I use this, extended the microphone to the engine and left the "amp" in the center console. I just use earbuds, but you could use those with a M/M 3.5mm cable. You can get these in store, or at least I did.
Driving around with headphones isn't exactly legal in some places, I prefer the earbuds for discretion.
I use this, extended the microphone to the engine and left the "amp" in the center console. I just use earbuds, but you could use those with a M/M 3.5mm cable. You can get these in store, or at least I did.
Driving around with headphones isn't exactly legal in some places, I prefer the earbuds for discretion.
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