🚀 go-pugleaf

On Wed, 6 Sep 2000 18:46:29 +0200, "Peter H.M. Brooks"
<peter@new.co.za> put finger to keyboard and composed:

>I am trying to use my PC-phone connection and I
>find that the recording levels is far too low. I have
>tried the options on the standard recording levels,
>but even loud talking comes over as a whisper.
>
>I think that the headset, being new, is fine.
>
>Is there a driver that could boost the sound recording
>levels?

Assuming you have set up the software correctly, you may be having a
problem with microphone type. If your modem expects an
electret/condenser microphone, then you will need to verify that the
biasing is correct. Some microphones require a bias voltage on the tip
terminal, others on the ring terminal.

 tip ring
   L   R   Ground
   |   |   |
   |   |   |    ______
   __  _________|  |
  /  \| |       |  |    stereo mike plug
  \__/|_|_______|  |
                |__|__
   |   |                    resistor
   |   |------------------+--/\/\/----| +5V bias
   |                      |
   +-----------------O O--|
   |                 shorting jumper (available on some cards)
   |
   |------------> signal input to modem or sound card


-- Franc Zabkar

Please remove one 'e' from my address when replying by email.