In article <CABOsP2MnX2ZwCNaBPoSqx0EQWi3jQQRj1nzeROOJOdRLN0xFsA@xxxxxxxxxxxxxx>, Michael Di Domenico <mdidomenico4@xxxxxxxxx> wrote: > I'm a newbie to alsa programming. Can anyone point me towards/give me > some sample source code (C/C++) that shows a short and clear (preferably > documented) example of how to read the left/right channels from an alsa > device, and then convert them into a I/Q complex stream for processing? I can't help with the ALSA specific part, although I guess you'd need the alsa libs for that. However I have already written some programs for generating and analysing IQ pairs in the form of LPCM 'stereo' wave files. (i.e. using left and right as the I and Q parts.) So you could perhaps record what you want as LPCM wave, then analyse that. No idea if what you need to do is similar, but... You can find the progs I've written in 'C' for this linked to http://www.audiomisc.co.uk/software/index.html and the source code is provided. I'm a rubbish programmer, but if any of them them help, feel free to hack and use as you choose. Slainte, Jim -- Electronics http://www.st-and.ac.uk/~www_pa/Scots_Guide/intro/electron.htm Audio Misc http://www.audiomisc.co.uk/index.html Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html ------------------------------------------------------------------------------ FREE DOWNLOAD - uberSVN with Social Coding for Subversion. Subversion made easy with a complete admin console. Easy to use, easy to manage, easy to install, easy to extend. Get a Free download of the new open ALM Subversion platform now. http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
