as much as I like the efficiency of a the commandline, this is sexy eye candy! Awesome work David, simply amazing how far development has come.
73, Anthony ------------------------------ On Sun, Jul 8, 2012 1:34 AM PDT David Rowe wrote: >Hello, > >I have been building some GUI displays for the FDMDV/Codec2 system to >help test and prototype various chunks of code. > >I have attached a screen shot from the latest version of fl_fdmdv that >plots various fdmdv modem parameters, and can accept an input signal >from the default sound card microphone. The screen shot shows a signal >I am transmitting from another PC across a simple audio cable. The >different view (spectrum, scatter diagram), were helpful in adjusting >the microphone and speaker levels. I have also picked up a few minor >bugs using this real time view. > >It can also run with a file input and looks really interesting with data >from fading channels (let me know if any one wants those fading channel >fdmdv files for testing). The screen shot doesn't really capture how >cool it looks in real time. > >I found one of the best ways to adjust the levels was based on >maximising the SNR, which is > 20dB in this screenshot. > >Next step is to add the Codec 2 decoder and output speech from the sound >card. We will then be ready for some on air tests. I want to use this >code to tweak the user experience, e.g. optimise the sync code, make >sure R2D2 noises are minimised when out of sync, and develop tuning aids >(like SNR). > >The A/D - demod - decoder - D/A "main loop" code in this program could >also be adapted to run as a daemon on platforms without a GUI. > >I am using the fltk and portaudio libraries so this code could be easily >ported to Windows if anyone is interested. > >Bye, > >David > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
