Using phone as PC microphone

[.:: Evanescence ::.]

Hello people.

With voice chat programs on PC like MSN Messenger and Skype, I thought
it would be cool to use a real phone as a PC microphone.

Q: Does someone here knows how to adapt a real phone to be used as a PC
microphone?

Thanks

 

[Michael A. Covington]

Hello people.

With voice chat programs on PC like MSN Messenger and Skype, I thought
it would be cool to use a real phone as a PC microphone.

Q: Does someone here knows how to adapt a real phone to be used as a PC
microphone?

One way that should work:

Connect the telephone in series with a 1000-ohm resistor and a 9-volt
battery.

Take the signal across the 1000-ohm resistor and feed to Line In (not Mic
In) on the soundcard.

Current is drawn from the battery only when the phone is off the hook.

You could arrange a more subtle solution that involves stealing 5 volts from
the PC, and isolating the phone circuit with a capacitor.

 

[Pooh Bear]

Hello people.

With voice chat programs on PC like MSN Messenger and Skype, I thought
it would be cool to use a real phone as a PC microphone.

Q: Does someone here knows how to adapt a real phone to be used as a PC
microphone?

Those companies selling VOIP telephony can offer USB phone handsets IIRC.


Graham

 

[.:: Evanescence ::.]

Pooh Bear wrote on sci.electronics.design:

Those companies selling VOIP telephony can offer USB phone handsets
IIRC.

I will check, but I am interest in making it on my own.
What do I need to use a phone as a microphone for PC? Any amplifier is
need?

 

[Michael A. Covington]

Pooh Bear wrote on sci.electronics.design:



I will check, but I am interest in making it on my own.
What do I need to use a phone as a microphone for PC? Any amplifier is
need?

No. If you put the telephone in series with a 9 volt battery and a 1000-ohm
resistor, you will have line-level audio across the resistor.

 

[.:: Evanescence ::.]

Michael A. Covington wrote on sci.electronics.design:

One way that should work:

Connect the telephone in series with a 1000-ohm resistor and a 9-volt
battery.

Take the signal across the 1000-ohm resistor and feed to Line In (not
Mic In) on the soundcard.

Current is drawn from the battery only when the phone is off the hook.

I am try this. Thanks!


[]s

e.

 

[.:: Evanescence ::.]

Michael A. Covington wrote on sci.electronics.design:

No. If you put the telephone in series with a 9 volt battery and a
1000-ohm resistor, you will have line-level audio across the resistor.

Hm. Thanks.