Ebay has loads of different electret microphones:
- 9.7mm x 7mm 2 Pin MIC Capsule, pictured as metal capsules with black top and short leads
- 5pcs 4*1.5mm, pictured as black rubber capsules with longer wires attached
- Stereo 46dB 6050 Full-Directional Electret Microphone 5Pcs, pictured as slightly bigger looking capsules
- 55040 Mini Capsule PCB Electret Condenser Microphone 9.6x6.6 & 6x3 mm Insert Bug (no idea what that is!)
... plus a whole load of capsules on break-out boards.
Likely they all have subtly different specs, pickup patterns, impedance, sensitivity (dB), etc. Anyone researched the different types to work out what's best for a simple clap-clap switch for Arduino?
I'm sure there's no correct answer, but has anyone seen any useful comparison tables on their travels, or have any tips to help narrow-down the options?
e.g. the bigger the better?