<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div style="RIGHT: auto">The gnuradio Hermes modules have been updated to add a receiver sampling rate of 384k.</div>
<div style="RIGHT: auto">This of course requires that the FPGA have been updated. </div>
<div style="RIGHT: auto"> </div>
<div style="RIGHT: auto">Also - the SSB Demo app has been updated to set the audio sample rate to 48k.</div>
<div style="RIGHT: auto">Many newer soundcards have dropped support for rates slower than 44.1k.</div>
<div style="RIGHT: auto">This has the unfortunate effect of increasing the processor workload since all the</div>
<div style="RIGHT: auto">phasing processing now happens at 48k rather than at 8k - but that should only impact</div>
<div style="RIGHT: auto">slower CPUs.</div>
<div style="RIGHT: auto"> </div>
<div style="RIGHT: auto">If you have an older soundcard that does support slower rates, the demo has a variable</div>
<div style="RIGHT: auto">to control the soundcard rate that can easily be changed back to 8k or whatever your card</div>
<div style="RIGHT: auto">supports. The demo app automatically sets the decimation factor for the filters based on </div>
<div style="RIGHT: auto"> receive sample rate divided by soundcard rate.<VAR id=yui-ie-cursor></VAR></div>
<div style="RIGHT: auto"> </div>
<div style="RIGHT: auto">The module *should* be compatible with Metis - but I've not receive any reports that</div>
<div style="RIGHT: auto">indicate it's been tried sucessfully. My understanding is that Metis does not yet have</div>
<div style="RIGHT: auto">FPGA support for 384k.</div>
<div style="RIGHT: auto"> </div>
<div style="RIGHT: auto">-- Tom, N5EG</div>
<div style="RIGHT: auto"> </div></div></body></html>