audio question
Archiver
Posts: 46,084
Hello to all in the group,
I'm very new to the Basic Stamp as well as electronics. I've had
some instruction on circuits (mainly the core things like resistors,
capacitors, Ohm's law, etc...) and I've been spending a great deal of
time reading about the Basic Stamp along with it's programming
language. So... I'm still a newbie, but with a little familiarity.
Having said that, I'm working on a project that needs some expert
advice. I'm a hang glider pilot trying to build a vario, an
instrument with an altimeter and a variometer. I have found a web
site that did just that (a great design as well), however, I would
like to change one thing to make it more useful for what I do. Most
commercial varios will emit an audible sound that changes in both
pitch and duration based on how fast you are going up. The one I
found that someone made uses an interruted oscillator that will do
this, but only to three different values. Commercial ones are more
continuous (the tone is low pitched and plays long when rising slowly
and continuously gets higher in pitch and plays in shorter intervals
as you rise faster). I would like to emulate this closer than to only
have three settings. I was wondering if anyone knew a good way to do
this? Thanks for any help you can give.
David
I'm very new to the Basic Stamp as well as electronics. I've had
some instruction on circuits (mainly the core things like resistors,
capacitors, Ohm's law, etc...) and I've been spending a great deal of
time reading about the Basic Stamp along with it's programming
language. So... I'm still a newbie, but with a little familiarity.
Having said that, I'm working on a project that needs some expert
advice. I'm a hang glider pilot trying to build a vario, an
instrument with an altimeter and a variometer. I have found a web
site that did just that (a great design as well), however, I would
like to change one thing to make it more useful for what I do. Most
commercial varios will emit an audible sound that changes in both
pitch and duration based on how fast you are going up. The one I
found that someone made uses an interruted oscillator that will do
this, but only to three different values. Commercial ones are more
continuous (the tone is low pitched and plays long when rising slowly
and continuously gets higher in pitch and plays in shorter intervals
as you rise faster). I would like to emulate this closer than to only
have three settings. I was wondering if anyone knew a good way to do
this? Thanks for any help you can give.
David