On Fri, Sep 15, 2017 at 09:37:43AM -0700, benravin wrote: > Hi Gordon, > > Thanks for the link. In fact I'm developing broadcast receiver for digital > radio standards like DAB, ISDB-T etc. I had a look at your source code. By > using mplayer the IQ output will be fed into jack input port which is the > capture port right ?
That's correct. That allows me to have a prerecorded IQ capture file that I can play back without an off-air signal. I wrote lysdr in the first place because converting Quisk to accept prerecorded files was such a massive pain in the arse, and I wanted to demo Software-Defined Radio at my local amateur radio club with no aerial in the distinctly RF-hostile centre of Glasgow :-D > DAB frame duration is 24ms which corresponds to 24ms of audio. But the > audio frame size can be max 60ms. Can JACK support different buffer lengths > for each clients ? You'll need to talk me through that a bit. Does that mean that you end up buffering more input frames than you're playing out? Or do you have 60ms output from a 24ms input that arrives somewhere in a 60ms timeslice? -- Gordonjcp MM0YEQ _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-dev
