Vgetty sound level problem - Rockwell/Cardinal

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I have a Cardinal MVP288XV2 Rockwell-chipset voice modem (external) on a 
FreeBSD system. I just installed Vgetty and it's very exciting. It's 
basically working; I can call in, it answers, plays the greeting, and records 
messages, and hangs up. No problem.

However, the sound volume is very low. I've used a couple of different phones 
to record: A Uniden desktop, a Sony desktop, and a Panasonic wireless. (I 
used these phones both as local phones to record the greeting and as call-in 
phones to test it; I have two lines).

The greeting plays so low, I can barely hear it when I call in to leave a 
message. The "beep" is very loud! I wish the greeting were as loud as the 
beep. I have the same problem when playing back the messages with "vm" 
through the local handset; it's just too low volume. And there is 
an additional "muffling" sound that drifts in and out, as if I were moving a 
handkerchief back and forth over the mouthpiece.

Note: it seems to play loudly through the Modem speaker.

Also note: If I convert to WAV format, and send to my PC:

 rmdtopvf v017151.rmd | pvftowav > test.wav

When I play back the WAV file, the sound is objectively very low-volume on the 
PC. (I have a little level meter on my playback app and it registers only 
about 5-10% of full-scale.)

ALSO NOTE: This same modem was just working fine on WinfaxPro 8.0 Talkworks! 
It was very loud through the telephone. So I know there's some way to get the 
volume in it.

I also edited the voice.conf and set the receive_gain and transmit_gain to 
100, but this didn't do ANYTHING.

Anyone got any ideas? Sorry this post was so long.

Regards,

John

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John R. Haggis  (haggis@cesium.com)

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