How do you creat music triggered by opening the card
How do you creat music triggered by opening the card
(OP)
Hey, I am just curious if anyone knows how to make something similar to a musical card? I was looking at a few cards in the store but none have a song I would want on them. Also it would be nice to know so I could apply it to other things such as when someone opens a cabinet. Not real sure what forum this goes in, so if it is improperly placed forgive me. Any feedback would be helpful. Thank You.





RE: How do you creat music triggered by opening the card
They're preprogrammed ASICS.
You'd have to do something with a small uC with sufficient memory. You'd only need a couple of I/O pins; use PWM for the audio out. Using a small MIDI engine (or equivalent), the filesize for the song would be much reduced as compared to a simple .wav file; but a .wav file would be more flexible.
For a one-off experiment, there are 'voice recording' kits available. They're a couple of square inches in size, and cost maybe US$20.
RE: How do you creat music triggered by opening the card
There are sound recording IC and other devices, and you could probably use one to record a particular song. I quickly found the following kit on the web that records 20 seconds of sound. http:/
RE: How do you creat music triggered by opening the card
A while ago I used one of these;
ht
as a one-off.
Just recorded the sound I wanted and rewired the switches to suit. Worked fine and was quick to do.
RE: How do you creat music triggered by opening the card
Nippon Precision Circuits (NPC) makes a variety of these devices. Some are in die form, some in packages. Most have preprogrammed tunes. One device allows a controller to load the SRAM of the chip so a customized song could be created.
See: www.npcamerica.com/product.htm and click on the "Tone generation/Melody IC's" link.