On Mon, 2011-10-17 at 17:46 +0900, Yogesh Sharma wrote: > Hello All > > How to get Fade-in/Fade-out effect using pulseaudio APIs. > As Arun says in Article > http://arunraghavan.net/2011/05/more-pulseaudio-power-goodness/ > "PulseAudio doesn?t offer an API to do fades" , is there any way to get > fade effects in pulseaduio. My blog post talks about doing fades on a GStreamer pipeline for the generic case. You should still be able to implement your own fades without too large an effort if you're not trying to build a generic framework out of it. If you do want to do a generic thing, we really need the proper API/infrastructure to implement effects and this is somewhat non-trivial. > And if pulseaudio does not support fade effect then what are these APIs > meant for pa_cvolume_get_fade(), pa_cvolume_set_fade() and > pa_cvolume_get_fade(). > I tried to use these APIs but did not get any success. As you'll find in the documentation, in this context, the fade is the balance between front and rear channels: http://freedesktop.org/software/pulseaudio/doxygen/volume_8h.html#aaf78aa9297c11860338ffa3c958f9a36 -- Arun
