Step 1: What You Need
2. Wireless Audio/Video Transmitter and Receiver
3. Standard 12V Relay
4. Standard 50V Rectifier
5. N4001 Diode
Step 2: Build the Circuit
You will end up with 4 open wires. Two coming from the relay and 2 coming from the rectifier.
NOTE: My doorbell circuit generated 18V from the transformer with 13.5 volts AC at the doorbell ringer. Your doorbell voltages may be different and the circuit may have to be designed specifically for your voltages.
Step 3: Finish the Connections
Solder the two connections coming from the rectifier to the playback contacts.
Pick the audio cable of your choosing (I used a mini female connector on a length of wire with bare leads) and solder the two connections to the speaker terminals on the recording module. This will allow you to directly input audio to the recording module.
Step 4: Load your Sound Effect
Step 5: Make the final Connections
When the doorbell is pressed, the recording module will playback the sound effect and send it to your stereo system. You can adjust the audio by walking outside to see what sounds best.
I hope you enjoyed this Instructable!