Hi Teensyers,
I’m working on a maker project for a friend, but am having a hard time figuring out some technical details. If anyone has any ideas on how to solve this problem I’d be super grateful.
The concept:
A CB radio effects box which uses a teensy and audio shield to add delay or reverb to the user’s voice. My goal is to make a standalone box which you could plug your CB mic into and then plug the output of the box into the CB radio—basically like a guitar effects pedal. Microphone->Effects Unit->CB Radio. (See the concept diagram below.)
The problem:
While I thought this would be a really simple project, I’m stuck on how to wire the CB mic so that the transmit/receive button on the mic still works as normal. I’ve tried a couple ideas, but I’m just not sure how to wire this project so that
1. There are no loud pops when you push in the mic button
2. The delay trail or effects from the Teensy stop transmitting after the mic button is disengaged
My current wiring (see the Wiring Diagram below) isn’t working very well. First off, there is a loud pop every time I push in the mic. (I’m assuming that’s because the ground of the mic input is connect directly to the ground of the line output?). Also, once I let the button back out, the signal from the Teensy still transmits. So for example if I have delay on my voice, it continues to transmit the delay echos.
Also, here's a diagram of how a CB transmit/receive button works and how it’s wired.
Any ideas on how I might be able to wire this differently?
Thanks so much for any ideas!
I’m working on a maker project for a friend, but am having a hard time figuring out some technical details. If anyone has any ideas on how to solve this problem I’d be super grateful.
The concept:
A CB radio effects box which uses a teensy and audio shield to add delay or reverb to the user’s voice. My goal is to make a standalone box which you could plug your CB mic into and then plug the output of the box into the CB radio—basically like a guitar effects pedal. Microphone->Effects Unit->CB Radio. (See the concept diagram below.)
The problem:
While I thought this would be a really simple project, I’m stuck on how to wire the CB mic so that the transmit/receive button on the mic still works as normal. I’ve tried a couple ideas, but I’m just not sure how to wire this project so that
1. There are no loud pops when you push in the mic button
2. The delay trail or effects from the Teensy stop transmitting after the mic button is disengaged
My current wiring (see the Wiring Diagram below) isn’t working very well. First off, there is a loud pop every time I push in the mic. (I’m assuming that’s because the ground of the mic input is connect directly to the ground of the line output?). Also, once I let the button back out, the signal from the Teensy still transmits. So for example if I have delay on my voice, it continues to transmit the delay echos.
Also, here's a diagram of how a CB transmit/receive button works and how it’s wired.
Any ideas on how I might be able to wire this differently?
Thanks so much for any ideas!