CREATING BELL SOUNDS
Just yesterday I determined to find a way of producingelectronic bell sounds.
There are some challenges here. A bell sound is a damped oscillation, that is, the frequency remains the same but the amplitude diminishes to zero. Also, can I use simple square wave for frequency or do I have to produce a sine wave?
There is also the question of attack. I believe this is the high amplitude of the beginning of the bell sound.
What I invision are some very loud speakers and effectivey an electronic carillon system. Other challenges will be to set up one or more of my PIC microcontrollers to generate the original frequencies for different tones, and signals to drive relays that will turn power on and off in parts of the circuit to achieve the decay. I will be working with a range of big fat electrolytic capacitors
to provide a source of diminishing power when the main power is removed.
I will display some of my circuits as I go along. Eventually I hope to present some sound clips here on my blog. This should really be fun!!
Posted by larrykeegan at April 30, 2005 09:38 AM