> > Message: 3 > Date: Fri, 24 Sep 2010 21:08:16 +0100 > From: Victor Lazzarini <victor.lazzar...@nuim.ie> > Subject: Re: [fluid-dev] coreaudio driver bug > To: fluid-dev@nongnu.org > Message-ID: <5fd0f0ce-2383-4092-bc4c-092638c68...@nuim.ie> > Content-Type: text/plain; charset="us-ascii" > > The problem seems to be audio hardware related. It is playing fine > with builtin audio, but my external USB soundcard produces the > distorted output I have been reporting here. Interestingly, portaudio > and jack seem to cope OK with it. I'll investigate more. > > Victor
Developing a correct CoreAudio driver able to adapt to any hardware with any channel mapping is a bit more work. The right way is to use AUHal audio unit. See : http://developer.apple.com/library/mac/#technotes/tn2002/tn2091.html Or PortAudio driver (more complex since duplex..) http://portaudio.com/trac/browser/portaudio/trunk/src/hostapi/coreaudio/pa_mac_core.c Or Jack CoreAudio driver (even more complex since duplex and able to aggregate in/out) : http://trac.jackaudio.org/browser/jack2/trunk/jackmp/macosx/coreaudio/JackCoreAudioDriver.cpp FluidSynth should be much simpler, since it is output only. Stéphane Letz _______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/fluid-dev
