SPE030 using external speaker

[ccdubs]

Hi all,

I would like to use the SPE030 voice synthesisor module but want it to feed into a much larger amplifier so that I can broadcast the messages over a PA system.

Is it possible to tap into the audio output channel somehow?

Thanks.

 

[westaust55]

Yes you can remove the onboard speaker and conenct into those pads/holes.

Keep in mind that the SPE030 outputs at around 5Vpp whereas audio amps normally operate at 1Vpp so a resistor divider will be necessary to reduce the voltage.

I have removed my SPE030 onboard speaker but replaced it with a 90mm piezo speaker for better volume and quality rather than feed into another amp.

 

[ccdubs]

Thanks WestAust,

I will check what voltage range we can send to our amp. At least I now know there is a way to tap into the signal. Removing the speaker will also give me some convenient mounting holes according to what I can see from the photo!

Thanks.

PS: sorry to hear about the Aussie/India test match....not really. If it's any consolation at least the Kiwis beat Bangladesh.

Regards,

CCdubs (NorthNZ)

 

[westaust55]

You might also find this thread about my SPE030 mods of interest if you have not previously found it:
http://www.picaxeforum.co.uk/showthread.php?t=9741

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p.s. I don't follow the football or cricket so unpeturbed by wins or losses there.
Other forms of recreation are more to my liking and following.