On 16/06/2018 16:57, Claude Frantz wrote:
Unfortunately, because the stream name includes the PID,
this stream name is different at every new program run. Therefore, the
volume cannot be saved by pulseaudio for the next program run. I have to
adjust the audio level at every program start, for the RX level.
Because there is a slider for the TX level in wsjtx, I can adjust it so
that the default level given by pulseaudio gives the output level which
I'm expecting. The slider for the input level has been suppressed in wsjtx.
Hi Claude,
the Qt naming of audio streams is not helpful but you should not need of
adjust the Rx audio stream level in the digital domain, in fact doing so
can only degrade the signal. Rx audio level adjustments must be made
before the signal is digitized and any digital gain controls should be
left at 100%.
The slider that used to exist in WSJT-X beside the thermometer level
indicator never adjusted the levels fed to the decoders, it only
adjusted the scaling of the thermometer indicator and the level fed to
the waterfall and 2D spectrum plots. The slider was removed exactly
because this sort of misunderstanding that it had any bearing on decoding.
73
Bill
G4WJS.
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
wsjt-devel mailing list
wsjt-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wsjt-devel
