- #1
Soilwork
- 102
- 0
Hey,
I never used to like electronics, but after doing a unit last semester it has really interested me.
I've gone out and bought simple circuit components and have built a whole heap of simple circuits just because I wanted to learn more of how things behave.
Anyway I still have the notes from that unit I did a while ago and found a pretty tough situation and wanted to at least be able to draw the circuit before getting the components (if I can ).
I am pretty useless at electronics, but it's fun nonetheless and I would like to learn more.
This is what I'm wanting to build:
A circuit that will switch on a tape recorder when the input sound level is above a certain threshold and record for a preset amount of time (adjustable in the range 1 to 10 minutes). Include a filter to stop the recorder being triggered by 100 Hz wind noise. And you use batteries for this.
So anyway I was thinking that you'd need a Microphone, maybe 12 V battery supply, A high-pass active filter, timing device, combinations of resistors and capacitors and this isn't a necessity but it'd be pretty cool to have an LED to let you know that it's recording or not.
I know I'm probably missing some components that I'd need so I was hoping to find out what components and what exactly those components are doing exactly.
I'm probably in way over my head with this one, but I'm determined to build it to satisfy myself that I'm not a complete retard haha :)
I never used to like electronics, but after doing a unit last semester it has really interested me.
I've gone out and bought simple circuit components and have built a whole heap of simple circuits just because I wanted to learn more of how things behave.
Anyway I still have the notes from that unit I did a while ago and found a pretty tough situation and wanted to at least be able to draw the circuit before getting the components (if I can ).
I am pretty useless at electronics, but it's fun nonetheless and I would like to learn more.
This is what I'm wanting to build:
A circuit that will switch on a tape recorder when the input sound level is above a certain threshold and record for a preset amount of time (adjustable in the range 1 to 10 minutes). Include a filter to stop the recorder being triggered by 100 Hz wind noise. And you use batteries for this.
So anyway I was thinking that you'd need a Microphone, maybe 12 V battery supply, A high-pass active filter, timing device, combinations of resistors and capacitors and this isn't a necessity but it'd be pretty cool to have an LED to let you know that it's recording or not.
I know I'm probably missing some components that I'd need so I was hoping to find out what components and what exactly those components are doing exactly.
I'm probably in way over my head with this one, but I'm determined to build it to satisfy myself that I'm not a complete retard haha :)