FailSafeIndigo
- Aug 24, 2012
- 8
- Joined
- Aug 24, 2012
- Messages
- 8
Hello! I randomly stumbled on this site looking for answers, and you guys seem pretty smart ^_^.
I'm wondering, is there a cheap an effective way to generate sine tones (or close to) using small electronic components?
I had a look at using 555 ICs, but it seems they generate square waves =/. I don't need to have perfect sine waves, but I need a rather pure sound! I know that turning those square waves closer to sine waves is possible, but at that point the circuit starts getting bulky, and unfortunately size/space is an issue.
Specifically, I need several stand alone circuits that each produce a different pitch. I intend to use a 19-tone equally spaced music scale, so being free to specify any pitch between 100hz and 500hz is very important, but they don't need to be adjustable. The pitch each circuit produces doesn't need to change, so ideally each circuit need only be [Component(s) generating specified pitch + battery + speaker].
I've had a look around, and I've found some things that might be suitable, but are very expensive! I am but a poor student, with dreams of creating annoying noises =(. My electronics skills are limited, but just a point in the right direction for component(s) that would be most suitable would be more than enough to get me started!
Any help would be greatly appreciated! Thank you =D.
I'm wondering, is there a cheap an effective way to generate sine tones (or close to) using small electronic components?
I had a look at using 555 ICs, but it seems they generate square waves =/. I don't need to have perfect sine waves, but I need a rather pure sound! I know that turning those square waves closer to sine waves is possible, but at that point the circuit starts getting bulky, and unfortunately size/space is an issue.
Specifically, I need several stand alone circuits that each produce a different pitch. I intend to use a 19-tone equally spaced music scale, so being free to specify any pitch between 100hz and 500hz is very important, but they don't need to be adjustable. The pitch each circuit produces doesn't need to change, so ideally each circuit need only be [Component(s) generating specified pitch + battery + speaker].
I've had a look around, and I've found some things that might be suitable, but are very expensive! I am but a poor student, with dreams of creating annoying noises =(. My electronics skills are limited, but just a point in the right direction for component(s) that would be most suitable would be more than enough to get me started!
Any help would be greatly appreciated! Thank you =D.