Need a *loud* sound

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beaubeau
 
Posts: 32
Joined: Sun Sep 11, 2011 8:44 am

Need a *loud* sound

Post by beaubeau »

So I built a project using a Wave Shield, to output a voice. Just one word. Think of a Halloween pumpkin yelling BOO, but that's not it.

Anyhow, the reason I used the WaveShield was mainly so that I could play that sound through an amplified speaker, because it needs to be loud. It's used in a noisy environment.

Before I switched to the WaveShield I used a tiny speaker and the biggest piezo buzzer I could find at Radio Shack.

Neither was loud enough.

What could I use to get a really loud noise out of my arduino?

I think a tone from a speaker would be best, but I'd actually like to have both a loud tone and a loud buzz, and
eliminate the WaveShield and the amplified speaker.

If I need to keep the amplified speaker, can I get the tone() signal to the amp just like I got it to the tiny speaker?

Thanks much.

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adafruit_support_bill
 
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Joined: Sat Feb 07, 2009 10:11 am

Re: Need a *loud* sound

Post by adafruit_support_bill »

You need some kind of amplification. Amplified speakers are probably the simplest solution. The Tone() output will be 0-5v which will overload the input of most amps. You can use a pot to attenuate the signal.

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