On 16/09/2015 21:22, Joe Taylor wrote: > Bill -- Hi Joe, > > My experience is that most claims that "program X" decodes JT65 better > than WSJT (or WSJT-X) are the result of using wrong soundcard sample > rates. I seem to remember that JT65-HF doesn't read (or write) *.wav > files, so it's very hard to do a real comparison of the decoders. I > suspect there may be a sample-rate issue, but that's only a guess. That's my suspicion too and knowing that the Windows sample rate conversion capability has been pretty poor in older versions makes me think that this may be related to that. I have no idea how each version of Windows deals with two applications asking for different sample rate streams from the same input device. I would hope that each device is run at the specified default sample rate and all streams are derived from that converting rate if necessary. OTOH there are usually options in the driver advanced properties about exclusive access that imply there can be a first come first served (at the requested sample rate) basis. So the order of starting applications might be a factor.
This would mean that verifying this would require two separate systems taking analog audio from a single receiver or perhaps a system with two sound cards. > > -- Joe 73 Bill G4WJS. > > > On 9/16/2015 4:01 PM, Bill Somerville wrote: >> On 16/09/2015 20:53, Bill Somerville wrote: >>> I don't have the full decode lists for those but the OMs that sent them >>> can easily capture more examples so I will ask for the full list of >>> decodes from both applications with some new examples. >> Looking at the files above, I doubt there are any other decodes apart >> from the ones that WSJT-X gets as they are all on the last dregs of a >> closing 15m band. >> >> 73 >> Bill >> G4WJS. ------------------------------------------------------------------------------ Monitor Your Dynamic Infrastructure at Any Scale With Datadog! Get real-time metrics from all of your servers, apps and tools in one place. SourceForge users - Click here to start your Free Trial of Datadog now! http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
