Problem with Emic Text-to-Speech SIP Module

julius.meinl

Hi,
i'm a new user there and I have a little problem with Emic Text-to-Speech SIP Module (Female).
I can't hear any voice from the speaker (only fast "pyk" in the begining and the end). so the question is: what speaker i need to this circuit ? ( now i have a piezo-speaker from Boe-bot )
when I plug in the circuit to oscylocope i see only straight lines ( no any modulation ! ) so i think there is something wrong in circuit.
I have second question about filter circuit from P7 to EMIC AIN. is there a 47k resistor , no 470 ? (yes, I know, 47K is on the schedule)
I used source code from parallax page.


Thanks for all

dandreae

You need to use an 8 ohm speaker for the Emic text to Speech module.· How do you have this set up?· What controller are you using?



Dave



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Dave Andreae

Parallax Tech Support·

julius.meinl

So the piezo-speaker from boe-bot components are good or not ?

I built circiut from this instruction:
http://www.parallax.com/Portals/0/Downloads/docs/prod/audiovis/EmicModules.pdf

I'm using BASIC STAMP 2P24.

sorry for this not so advanced question, but I'm a beginner electronics (I'm a student of electrotechnics from Poland)

dandreae

You cannot use the piezo speaker with the Emic Text Speech module.· You have to
use a 8 ohm speaker as specified with the module.· Let me check on the 47K resistor and I respond back in about an hour or two.

Dave

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Dave Andreae

Parallax Tech Support·

dandreae

The 47K ohm resistor is there to match the impedance of the filter.· 47K ohm is the correct value.



Dave

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Dave Andreae

Parallax Tech Support·

julius.meinl

Thank you for your help

Best regards from Poland