I went to Radioshack and had them look up the spec's on their mp3 players.
As for the bone conduction headphones, yes, they do look promising. And thanks for the amplifier posting from dlgoff.
No to the pager/cellphone idea because I could not come up with a "timing" circuit so that it was not always on.
Thanks for the amazon hit. Will go there now.
Ok, I have found that the output from the 2.5 - 3.5 mm audio jack is 60mv. Very tiny. I was thinking piezo because of size and unsure of the power requirements. My interest was not directed at the bass only. Knowing that there are limitations of the human ear, I wanted to just use a...
Oh and I forgot. I have seen the bone conduction headphones that are sold. they are rather "bulky" and would also draw much attention. I am trying to conceive a way to achieve the desired effect while still maintaining some "invisibility" which will help him by not attracting negative...
thanks for the reply. I understand how sound waves are transmitted by vibration through the air. What I am trying to discover is 1. What is the mv output from an ipod 2.5mm jack to the earbuds? 2. Is it enough to "activate" a piezo (which will produce a greater/different type of vibration)...
Hello, I am trying to figure out if I can replace the audio speaker from a pair of "cheap" ear bud speakers from a mp3 player with a piezo so that when the music is playing there is produced a vibration instead of an audio signal? Is this possible? would the small battery used in a small ipod...
Hi, thanks for the welcome and q's. So, let's see...1-2 sec duration every 5-10 sec's. Frequency? hmmm, hadn't thought of that. I assumed (you know what that gets you. LOL) that the small motors in pagers were pretty much the same frequency. Micro vibrating motors operating 10k-50k rpm...
Hi everyone. I am trying to design a timed vibration device that I can use for my son. He has a mild form of autism and he seems to need continual sensory input. We are attempting all different type of strategies but I have an idea I would like to try but do not have the needed skills. So...