[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

vgetty/pvftormd problem



I'm using Debian 'stable' mgetty-pvftools-1.1.27-4.1 on one machine and
'testing' mgetty-pvftools-1.1.28-2 on another.  On both, when I prepare
a message from a wav file it produces static like noise when my modem
answers.

My modem is a Sportster Vi 33600 Faxmodem.

It records incoming perfectly.  I can take an incoming message and
play it back as the standard.rmd and it sounds great.  If I take the
same message and use pvftools to make it a wav file it sounds great.
If I take that wav file and transform it back into rmd, it is only
noise.

rmdfile on incoming messages shows US_Robotics 1, 8 bit, 8000 samples.
I use wavtopvf and pvftormd US_Robotics 1 to recreate the rmd from the
wav and rmdfile shows the same information.

The same problem (noise) occurs if I use a wav from another source,
use pvfspeed to make the speed and bits correct and pvftormd to
prepare the rmd file.

Is this modem a known problem?  Is there a known problem with
pvftormd, and can I work around it?  If not, what modems currently
available on the US market are known to work with Debian, vgetty &
pvftools?

Thanks.

Don Hayward			don@mote.org
Mote Marine Laboratory		Office: 941.388.4441  Cell: 941.302.4982
1600 Ken Thompson Parkway	Fax: 941.388.4312
Sarasota, FL 34236		See: http://www.mote.org
Independent, non-profit, marine and estuarine research and education facility.
For PGP public key do: http://www.mote.org/~don/donpgp.asc
use "DISCLAIMER"; # We run Debian Linux
Taxes feed the starving and clothe the naked.




Reply to: