[Svxlink-devel] 16k branch merged into trunk
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From: Tobias B. <sm...@us...> - 2008-08-26 20:59:25
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Hi all, The 16k branch which Steve/DH1DM has hacked on for a couple of months have now been merged into Subversion trunk. The reason for using 16kHz sampling rate instead of 8kHz is to get a wider audio bandwidth (8kHz instead of 4kHz theoretically). However, by default it is not compiled for 16kHz internal sampling frequency. I want to test the new code at 8kHz first. If you want to test 16k, change the INTERNAL_SAMPLE_RATE variable in makefile.cfg to 16000. Then do a "make realclean && make". If you are using CTCSS squelch the CTCSS_THRESH must be changed. The default is now 10 (previously -5). Pay special attention to the performance of the DTMF decoder (false triggers, double detections, not detected digits) and also pay attention to the performance of the CTCSS squelch detector. If you get into unsolvable problems with the new code you can revert your Subversion tree to the revision just before the merge using the command below. svn up -r 1438 make realclean && make 73's de SM0SVX / Tobias |