Willbe New Member Sep 4, 2008 #21 Please post a complete spec sheet on, or a link to, your particular piezo device. Last edited: Sep 4, 2008
audioguru Well-Known Member Most Helpful Member Sep 4, 2008 #22 Here is the frequency response of a Murata piezo transducer. It is horrible. Attachments piezo speaker-Murata.PNG 24.2 KB · Views: 183
Hero999 Banned Sep 4, 2008 #23 I think we've forgotten that he doesn't what it for music or speech. Fahime said: I need 85 dB at 400Hz to 1100Hz. I'm using a trasnistor to drive it. Click to expand... He just wants to build a siren so a piezo is fine.
I think we've forgotten that he doesn't what it for music or speech. Fahime said: I need 85 dB at 400Hz to 1100Hz. I'm using a trasnistor to drive it. Click to expand... He just wants to build a siren so a piezo is fine.
audioguru Well-Known Member Most Helpful Member Sep 4, 2008 #24 A siren in North America sweeps its frequency up and down. A piezo transducer doesn't have any output at low frequencies and one high resonant frequency is very loud. It won't sound like a siren. It will sound like a beeper.
A siren in North America sweeps its frequency up and down. A piezo transducer doesn't have any output at low frequencies and one high resonant frequency is very loud. It won't sound like a siren. It will sound like a beeper.