vgetty and Xoltrix 14.4 voice modem

bbarnett@L8R.net (bbarnett@L8R.net)
Thu, 06 Jan 2000 22:25:03 GMT


Marc SCHAEFER wrote:
> 
> bbarnett@L8R.net wrote:
> > 3) I can't convert wav to .rmd using wavtopvf and then pvftormd.. its
> > garbage
> >    when the modem tries to play it
> > 4) I can't convert messages recorded from the modem to .pvf to .wav..
> > once again, its static
> 
> There seem to be many people with this problem with Rockwell and
> US Robotics. One known problem is that
> the WAV file shouldn't be stereo. If it is, you need to use the
> scripts/convert_wav_to_rmd.sh or a variation thereof.
> 
> > Its weird.  Its like the modem is saving in a strange format, and vgetty
> > is putting the wrong header on it.  Maybe.  I don't know what else the
> > problem could be, it seems to play and record fine on the modem, but I
> 
> Just as a last test, record a RMD and check you can play it. Then
> rmdtopvf, then pvftormd, and try to play that. If it works, try to add
> a pvf -> wav and wav -> pvf.

Well, I tried it, and it doesn't work either :(  I don't know what's
going on, but its bizarre.  There are 4 different types of rockwell
formats, and I tried them all, just to be sure, however vgetty reports
(when playing the origonal sample that works) that it is Rockwell 2
bit.  When I use pvftormd Rockwell 2 test hello, it works, and the new
file is the same size as it was before (that is, the origonal "hello"
rmd and the new hello(rmd) -> hello(pvf) ->hello(rmd) are the same
size).

All I get is what sounds like extremely loud static with the new rmd
:(.  Is it possible that this .rmd is somehow not a standard rockwell 2
bit rmd file????  I can send it to you as a test, if you want.

> 
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